Data Package Metadata   View Summary

Physiochemical water column parameters and hydrographic time series from river, lagoon, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

General Information
Data Package:
Local Identifier:knb-lter-ble.3.6
Title:Physiochemical water column parameters and hydrographic time series from river, lagoon, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing
Alternate Identifier:DOI PLACE HOLDER
Abstract:
To understand circulation and seasonality as part of the Beaufort Lagoon Ecosystem Long Term Ecological Research program, temperature, conductivity, salinity, pressure, depth, and current velocity are recorded hourly in situ, starting August 2018 in lagoons across the Beaufort Sea coast (Elson Lagoon, Kaktovik Lagoon, and Jago Lagoon). Moorings include combinations of 1) RBR Concerto CTDs with temperature, conductivity, and pressure sensors; 2) StarOddi CTs with temperature and conductivity sensors; and 3) Lowell TCM-1 Tilt Current meters with MAT-1 Data Loggers for velocity and bearing. In addition, during BLE LTER's annual sampling, water column physiochemical parameters (chlorophyll a, dissolved oxygen, phycoerythrin concentration, pH, temperature, conductivity, salinity) are measured by hand with a YSI data sonde at river, lagoon, and open ocean sites along the Beaufort Sea coast. Here we provide both raw and quality controlled in situ mooring data, the R scripts used for processing, and all YSI sonde data plus a subset used to calibrate and validate the in situ mooring data.
Short Name:physiochemistry-hydrography
Publication Date:2019
Language:English

Time Period
Begin:
2018-07-26
End:
2019-08-15

People and Organizations
Contact:Information Manager (Beaufort Lagoon Ecosystems LTER) [  email ]
Organization:Beaufort Lagoon Ecosystems LTER, Core Program
Associate:McClelland, James W (The University of Texas at Austin, principal investigator)
Associate:Dunton, Kenneth H (The University of Texas at Austin, principal investigator)
Associate:Bonsell, Christina E (The University of Texas at Austin, Core Program manager, data analyst)
Associate:McTigue, Nathan D (The University of Texas at Austin, Core Program manager)
Associate:Nguyen, An T (The University of Texas at Austin, information manager)
Associate:Whiteaker, Timothy L (The University of Texas at Austin, information manager)

Data Entities
Data Table Name:
Conductivity temperature depth data (CTD), 2018-ongoing
Description:
Temperature, conductivity, and salinity from RBRConcerto and StarOddi DST CT dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Tilt current meter data (TCM), 2018-ongoing
Description:
Current velocity, heading, and temperature from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Water column physiochemistry data (YSI), 2018-ongoing
Description:
Physiochemical water column parameters (chlorophyll a, dissolved oxygen, phycoerythrin concentration, pH, temperature, conductivity, salinity) from hand cast YSI datasonde, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Raw data: RBR CTD, 2018-ongoing
Description:
Raw data: Conductivity, temperature, depth, and derived parameters from RBRConcerto dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Raw data: Star Oddi CTD, 2018-ongoing
Description:
Raw data: Temperature, conductivity, and salinity from Star Oddi DST CT dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Raw data: Lowell TCM temperature, 2018-ongoing
Description:
Raw data: Temperature from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
Raw data: Lowell TCM current, 2018-ongoing
Description:
Raw data: Current velocity and heading from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Data Table Name:
YSI data subset used for CTD data calibration, 2018-ongoing
Description:
Used for calibration: YSI datasonde temperature, conductivity, and salinity, BLE LTER Core Program, August 2018-ongoing. This is a smaller subset of the YSI data.
Data Table Name:
physiochemistry-hydrography, personnel list
Description:
Personnel list with years involved in this data set
Other Name:
R script to process CTD data
Description:
Annotated RMarkdown script to process, calibrate, and flag raw CTD data
Other Name:
R script to process TCM data
Description:
Annotated RMarkdown script to process, calibrate, and flag raw TCM data
Other Name:
HTML report from CTD data processing
Description:
HTML report generated from RMarkdown script to process, calibrate, and flag raw CTD data
Other Name:
HTML report from TCM data processing
Description:
HTML report generated from RMarkdown script to process, calibrate, and flag raw TCM data
Detailed Metadata

Data Entities


Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/e888043ce56797d3897044121c9a714f
Name:Conductivity temperature depth data (CTD), 2018-ongoing
Description:Temperature, conductivity, and salinity from RBRConcerto and StarOddi DST CT dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:70513
Number of Columns:19

Table Structure
Object Name:BLE_LTER_hydrography_CTD.csv
Size:13635345 byte
Authentication:b7dfce204f6d6a6d16f353779d2b48f6 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedInstrument usedWhether data was calibratedConductivityTemperatureSalinityPressureSea pressureDepthSpeed of soundSpecific conductivityDensity anomalyConductivity/salinity data flagTemperature data flagStation nameLatitudeLongitudeHabitat type
Column Name:station  
date_time  
instrument  
recalibrated_parameters  
conductivity_uS_cm  
temperature_C  
salinity  
pressure_dbar  
sea_pressure_dbar  
depth_m  
speed_of_sound_m_s  
specific_conductivity_uS_cm  
density_anomaly_g_cm3  
flags_condsal  
flags_temperature  
station_name  
latitude  
longitude  
habitat_type  
Definition:BLE LTER Core Program station codeDate and time recorded ISO8601 YYYY-MM-DDThh:mm-hh. Times are in GMT-8.indicates which instrument recorded the dataindicates if data parameter went through calibration routine post-retrievalConductivityTemperature, measured from thermistor placed inside underwater instrumentSalinity calculated from temperature and conductivity (derived) according to the Practical Salinity ScaleTotal pressureSea pressure (derived)Depth (derived)Speed of Sound (derived)Conductivity at 25 degrees C (derived)Density anomaly (derived)data flag for conductivity and salinitydata flag for temperatureBLE LTER's Core Program station nameLatitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Longitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Habitat type (river, lagoon, ocean)
External Measurement Definition, Link: containsMeasurementsOfType water conductivity containsMeasurementsOfType Water Temperature containsMeasurementsOfType water salinity containsMeasurementsOfType water pressure containsMeasurementsOfType density anomaly
Storage Type:string  
dateTime  
string  
string  
float  
float  
float  
float  
float  
float  
float  
float  
float  
string  
string  
string  
decimal  
decimal  
string  
Measurement Type:nominaldateTimenominalnominalratiointervalratioratioratioratioratioratiorationominalnominalnominalintervalintervalnominal
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DDThh:mm-hh
Precision1
Definitionany text
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeNONE
DefinitionNot calibrated after data retrieval
Source
Code Definition
CodeT
DefinitionTemperature calibrated after data retrieval using linear adjustment between sampling points taken with YSI ProDSS datasonde
Source
Code Definition
CodeCT
DefinitionConductivity, temperature, and salinity (derived) calibrated after data retrieval using linear adjustment between sampling points taken with YSI ProDSS datasonde
Source
UnitmicrosiemensPerCentimeter
Typereal
Unitcelsius
Typereal
Unitdimensionless
Typereal
Unitdecibar
Precision0.01
Typereal
Unitdecibar
Precision0.01
Typereal
Unitmeter
Typereal
UnitmeterPerSecond
Typereal
UnitmicrosiemensPerCentimeter
Typereal
UnitgramsPerCubicCentimeter
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeINV
DefinitionInvalid data conductivity and salinity data value as determined by freezing line algorithm
Source
Code Definition
CodeVALID
DefinitionAcceptable temperature data value
Source
Code Definition
CodeQM
DefinitionQuestionable conductivity and salinity data value as determined by trained personnel
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeVALID
DefinitionAcceptable temperature data value
Source
Code Definition
CodeQM
DefinitionQuestionable temperature data value as determined by trained personnel
Source
Definitionany text
Unitdegree
Typereal
Min-90 
Max90 
Unitdegree
Typereal
Min-180 
Max180 
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codelagoon
DefinitionLagoon
Source
Code Definition
Coderiver
DefinitionFreshwater river
Source
Code Definition
Codeocean
DefinitionOcean
Source
Missing Value Code:              
CodeNA
Explnot available, parameter not derived by StarOddi instruments
CodeNA
Explnot available, parameter not derived by StarOddi instruments
CodeNA
Explnot available, parameter not derived by StarOddi instruments
 
CodeNA
Explnot available, parameter not derived by StarOddi instruments
CodeNA
Explnot available, parameter not derived by StarOddi instruments
           
Accuracy Report:                                      
Accuracy Assessment:                                      
Coverage:                                      
Methods:                                      

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/24cdf87f82ed1a67d4110751cdfe8cdf
Name:Tilt current meter data (TCM), 2018-ongoing
Description:Current velocity, heading, and temperature from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:68474
Number of Columns:12

Table Structure
Object Name:BLE_LTER_hydrography_TCM.csv
Size:9005153 byte
Authentication:d9e55123bc959a8e2407ec6dbb019efc Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedTemperatureCurrent speedCurrent headingNorthward velocityEastward velocitySpeed/velocity data flagStation nameLatitudeLongitudeHabitat type
Column Name:station  
date_time  
temperature_C  
speed_cm_s  
heading_degree  
vel_N_cm_s  
vel_E_cm_s  
flags  
station_name  
latitude  
longitude  
habitat_type  
Definition:BLE LTER Core Program station codeDate and time recorded ISO8601 YYYY-MM-DDThh:mm-hh. Times are in GMT-8.Temperature, measured from thermistor placed inside underwater instrumentcurrent speedcurrent heading (adjusted for declination) in degrees from Northnorthward velocityeastward velocitydata flags for speed and velocityBLE LTER's Core Program station nameLatitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Longitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Habitat type (river, lagoon, ocean)
External Measurement Definition, Link: containsMeasurementsOfType Water Temperature
Storage Type:string  
dateTime  
float  
float  
float  
float  
float  
string  
string  
decimal  
decimal  
string  
Measurement Type:nominaldateTimeratioratioratioratiorationominalnominalintervalintervalnominal
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DDThh:mm-hh
Precision1
Unitcelsius
Precision0.005
Typereal
UnitcentimeterPerSecond
Precision0.1
Typereal
Unitdegree
Precision0.01
Typereal
UnitcentimeterPerSecond
Precision0.1
Typereal
UnitcentimeterPerSecond
Precision0.1
Typereal
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeBAD
DefinitionBad current and velocity data
Source
Code Definition
CodeQM
DefinitionQuestionable current and velocity data value as determined by trained personnel
Source
Code Definition
CodeVALID
DefinitionAcceptable temperature data value
Source
Definitionany text
Unitdegree
Typereal
Min-90 
Max90 
Unitdegree
Typereal
Min-180 
Max180 
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codelagoon
DefinitionLagoon
Source
Code Definition
Codeocean
DefinitionOcean
Source
Code Definition
Coderiver
DefinitionFreshwater river
Source
Missing Value Code:                        
Accuracy Report:                        
Accuracy Assessment:                        
Coverage:                        
Methods:                        

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/5ffcb3fa895a04ef0d374d1ce7a697d0
Name:Water column physiochemistry data (YSI), 2018-ongoing
Description:Physiochemical water column parameters (chlorophyll a, dissolved oxygen, phycoerythrin concentration, pH, temperature, conductivity, salinity) from hand cast YSI datasonde, BLE LTER Core Program, August 2018-ongoing.
Number of Records:127
Number of Columns:22

Table Structure
Object Name:BLE_LTER_hydrography_YSI.csv
Size:26279 byte
Authentication:6e2b47acb1154c5297fc66cb7192141f Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Station nodeStation lagoonStationSampling seasonDate time recordedWater column positionChlorophyll aConductivityDepthDissolved oxygenDissolved oxygen saturationPhycoerythrin concentrationpHSalinitySpecific conductivityTemperaturenotesStation nameLatitudeLongitudeHabitat typeStation sampling priority
Column Name:node  
lagoon  
station  
season  
date_time  
water_column_position  
chlorophyll_a_ug_l  
conductivity_uS_cm  
depth_m  
DO_concentration_mg_l  
DO_saturation_percent  
phycoerythrin_ug_l  
pH  
salinity  
specific_conductivity_uS_cm  
temperature_C  
notes  
station_name  
latitude  
longitude  
habitat_type  
station_sampling_priority  
Definition:One of three research nodes in BLE LTER's research programLagoon where BLE LTER Core Program station is locatedBLE LTER Core Program station codeBLE LTER Core Program sampling seasonDate and time recorded ISO8601 YYYY-MM-DDThh:mm-hh. Note that some observations were made without recording time; in these instances, a generic time of noon or 12:00 is appended to the date for date time format consistency and a comment recorded in the "notes" column. Times are in GMT-8.Where sample was taken within water columnChlorophyll a concentration (μg/L)Conductivity (μS/cm)Depth of sample (m)Dissolved Oxygen concentration (mg/L, derived)Dissolved Oxygen saturation (%)Phycoerythrin concentration (μg/L)pHSalinity calculated from temperature and conductivity (derived) according to the Practical Salinity ScaleConductivity at 25 degrees C (derived)Water temperature, measured from thermistor placed outside underwater instrumentNotesBLE LTER's Core Program station nameLatitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Longitude in decimal degrees. Note that due to field conditions, sampling is not always carried out at these exact coordinates, but in close vicinity of the station.Habitat type (river, lagoon, ocean)BLE LTER Core Program station sampling priority. For internal use.
External Measurement Definition, Link: containsMeasurementsOfType chlorophyll-a containsMeasurementsOfType water conductivity containsMeasurementsOfType dissolved oxygen concentration containsMeasurementsOfType dissolved oxygen saturation containsMeasurementsOfType Water pH
Storage Type:string  
string  
string  
string  
dateTime  
string  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
string  
string  
decimal  
decimal  
string  
string  
Measurement Type:nominalnominalnominalnominaldateTimenominalratioratioratioratioratioratioratioratioratiointervalnominalnominalintervalintervalnominalnominal
Measurement Values Domain:
Definitionany text
Definitionany text
Definitionany text
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codeopen water
DefinitionSapling occurred in summer season (e.g. late July/early August) when the lagoons have mostly open water.
Source
Code Definition
Codebreak up
DefinitionSampling occurred in spring season (e.g. June) when ice break-up happens.
Source
Code Definition
Codeunder ice
DefinitionSampling occurred in winter season (e.g. April) when the lagoons are mostly frozen.
Source
FormatYYYY-MM-DDThh:mm-hh
Precision1
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codebottom
Definitionwater collected from approximately 30 cm above the bottom
Source
Code Definition
Codesurface
Definitionwater collected from approximately 0-30 cm below the surface
Source
UnitmicrogramPerLiter
Typereal
Min
Max
UnitmicrosiemensPerCentimeter
Typereal
Min
Max
Unitmeter
Typereal
Min
Max
UnitmilligramPerLiter
Typereal
Min
Max
Unitpercent
Typereal
Min
Max
UnitmicrogramPerLiter
Typereal
Min
Max
Unitdimensionless
Typereal
Min
Max14 
Unitdimensionless
Typereal
Min
Max
UnitmicrosiemensPerCentimeter
Typereal
Min
Max
Unitcelsius
Typereal
Definitionany text
Definitionany text
Unitdegree
Typereal
Min-90 
Max90 
Unitdegree
Typereal
Min-180 
Max180 
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codelagoon
DefinitionLagoon
Source
Code Definition
Codeocean
DefinitionOcean
Source
Code Definition
Coderiver
DefinitionFreshwater river
Source
Allowed Values and Definitions
Enumerated Domain 
Code Definition
Codeprimary
DefinitionLagoon site is primarily sampled during field sampling.
Source
Code Definition
Codesecondary
DefinitionLagoon site is secondarily sampled during field sampling.
Source
Code Definition
Coderiver
DefinitionRiver site
Source
Code Definition
Codeocean
DefinitionNearshore ocean site
Source
Missing Value Code:          
Codenot applicable
ExplNot applicable, station considered too shallow for stratification. Water collected from approximately 0-30 cm below the surface.
CodeNA
Explnot available, parameter not recorded by instrument used for measurement
Code-99999
Explnot recorded due to external conditions
CodeNA
Explnot available, parameter not recorded by instrument used for measurement
Code-99999
Explnot recorded
CodeNA
Explnot applicable for river sites
   
CodeNA
Explnot available, parameter not recorded by instrument used for measurement
 
CodeNA
Explnot available, parameter not recorded by instrument used for measurement
               
Accuracy Report:                                            
Accuracy Assessment:                                            
Coverage:                                            
Methods:                                            

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/7200e554812f1403eec15767b7a28c43
Name:Raw data: RBR CTD, 2018-ongoing
Description:Raw data: Conductivity, temperature, depth, and derived parameters from RBRConcerto dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:35221
Number of Columns:11

Table Structure
Object Name:BLE_LTER_hydrography_CTD_RBR_raw.csv
Size:6434348 byte
Authentication:d0aa24d1e132704fd57759b74e9de5d7 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedConductivityTemperaturePressureSea pressure DepthSalinitySpeed of soundSpecific conductivityDensity anomaly
Column Name:station  
date_time  
Conductivity  
Temperature  
Pressure  
Sea pressure  
Depth  
Salinity  
Speed of sound  
Specific conductivity  
Density anomaly  
Definition:BLE LTER Core Program station codeDate and time recorded YYYY-MM-DD hh:mm:ss. Times are in GMT-8.ConductivityWater temperature, measured from thermistor placed outside underwater instrumentTotal pressureSea pressure (derived)Depth (derived)Salinity calculated from temperature and conductivity (derived) according to the Practical Salinity ScaleSpeed of Sound (derived)Conductivity at 25 degrees C (derived)Density anomaly (derived)
External Measurement Definition, Link: containsMeasurementsOfType water conductivity containsMeasurementsOfType Water Temperature containsMeasurementsOfType water pressure containsMeasurementsOfType water salinity containsMeasurementsOfType density anomaly
Storage Type:string  
dateTime  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Measurement Type:nominaldateTimeratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DD hh:mm:ss
Precision1
UnitmicrosiemensPerCentimeter
Precision0.001
Typereal
Unitcelsius
Precision0.005
Typereal
Unitdecibar
Precision0.01
Typereal
Unitdecibar
Precision0.01
Typereal
Unitmeter
Typereal
Unitdimensionless
Typereal
UnitmeterPerSecond
Typereal
UnitmicrosiemensPerCentimeter
Typereal
UnitgramsPerCubicCentimeter
Typereal
Missing Value Code:                      
Accuracy Report:                      
Accuracy Assessment:                      
Coverage:                      
Methods:                      

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/534373640a661d8ed0bfedc52479a133
Name:Raw data: Star Oddi CTD, 2018-ongoing
Description:Raw data: Temperature, conductivity, and salinity from Star Oddi DST CT dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:70515
Number of Columns:6

Table Structure
Object Name:BLE_LTER_hydrography_CTD_StarOddi_raw.csv
Size:3365404 byte
Authentication:de7d418f8072fa693043de46257fe381 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedTemperatureSalinityConductivitySpeed of sound
Column Name:station  
date_time  
temperature  
salinity  
conductivity  
sound_vel  
Definition:BLE LTER Core Program station codeDate and time recorded MM/DD/YYYY hh:mm. Times are in GMT-8.Temperature, measured from thermistor placed inside underwater instrumentSalinity calculated from temperature and conductivity (derived) according to the Practical Salinity ScaleConductivitySpeed of Sound (derived)
External Measurement Definition, Link: containsMeasurementsOfType Water Temperature containsMeasurementsOfType water salinity containsMeasurementsOfType water conductivity
Storage Type:string  
dateTime  
float  
float  
float  
float  
Measurement Type:nominaldateTimeratioratioratioratio
Measurement Values Domain:
Definitionany text
FormatMM/DD/YYYY hh:mm
Precision1
Unitcelsius
Precision0.1
Typereal
Unitdimensionless
Typereal
UnitmicrosiemensPerCentimeter
Precision0.02
Typereal
UnitmeterPerSecond
Typereal
Missing Value Code:            
Accuracy Report:            
Accuracy Assessment:            
Coverage:            
Methods:            

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/353b2fde6db9535eeb4baef0e118b351
Name:Raw data: Lowell TCM temperature, 2018-ongoing
Description:Raw data: Temperature from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:68525
Number of Columns:3

Table Structure
Object Name:BLE_LTER_hydrography_TCM_temp_raw.csv
Size:2512497 byte
Authentication:26c4985d569f4ee950a664d5007fc8ce Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedTemperature
Column Name:station  
date_time  
temperature  
Definition:BLE LTER Core Program station codeDate and time recorded YYYY-MM-DD hh:mm:ss. Times are in GMT-8.Temperature, measured from thermistor placed inside underwater instrument
External Measurement Definition, Link: containsMeasurementsOfType Water Temperature
Storage Type:string  
dateTime  
float  
Measurement Type:nominaldateTimeinterval
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DD hh:mm:ss
Precision1
Unitcelsius
Precision0.005
Typereal
Missing Value Code:      
Accuracy Report:      
Accuracy Assessment:      
Coverage:      
Methods:      

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/d78362f388775cc11340bf7c2e51ae4b
Name:Raw data: Lowell TCM current, 2018-ongoing
Description:Raw data: Current velocity and heading from Lowell TCM MAT-1 dataloggers deployed on benthos, BLE LTER Core Program, August 2018-ongoing.
Number of Records:68475
Number of Columns:6

Table Structure
Object Name:BLE_LTER_hydrography_TCM_current_raw.csv
Size:3523970 byte
Authentication:14c6f06529aeac4b57a71718612b12f5 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedCurrent speedCurrent headingNorthward velocityEastward velocity
Column Name:station  
date_time  
speed_cm_s  
heading  
vel_N  
vel_E  
Definition:BLE LTER Core Program station codeDate and time recorded YYYY-MM-DD hh:mm:ss. Times are in GMT-8.current speedcurrent heading (adjusted for declination) in degrees from Northnorthward velocityeastward velocity
Storage Type:string  
dateTime  
float  
float  
float  
float  
Measurement Type:nominaldateTimeratioratioratioratio
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DD hh:mm:ss
Precision1
UnitcentimeterPerSecond
Precision0.1
Typereal
Unitdegree
Precision0.01
Typereal
UnitcentimeterPerSecond
Precision0.1
Typereal
UnitcentimeterPerSecond
Precision0.1
Typereal
Missing Value Code:            
Accuracy Report:            
Accuracy Assessment:            
Coverage:            
Methods:            

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/6d327300d4893e4f932220fecf49c507
Name:YSI data subset used for CTD data calibration, 2018-ongoing
Description:Used for calibration: YSI datasonde temperature, conductivity, and salinity, BLE LTER Core Program, August 2018-ongoing. This is a smaller subset of the YSI data.
Number of Records:15
Number of Columns:5

Table Structure
Object Name:BLE_LTER_hydrography_YSI_for_calibration.csv
Size:790 byte
Authentication:ae1166d5562504d8e5c54a0610a1e4f4 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 StationDate time recordedSalinityTemperatureConductivity
Column Name:station  
date_time  
salinity  
temperature_C  
conductivity_uS_cm  
Definition:BLE LTER Core Program station codeDate and time recorded in ISO8601 YYYY-MM-DDThh:mm-hh. Times are in GMT-8.Salinity calculated from temperature and conductivity (derived) according to the Practical Salinity ScaleWater temperature, measured from thermistor placed outside underwater instrumentConductivity
External Measurement Definition, Link: containsMeasurementsOfType water salinity containsMeasurementsOfType Water Temperature containsMeasurementsOfType water conductivity
Storage Type:string  
dateTime  
float  
float  
float  
Measurement Type:nominaldateTimeratiointervalratio
Measurement Values Domain:
Definitionany text
FormatYYYY-MM-DDThh:mm-hh
Precision1
Unitdimensionless
Typereal
Unitcelsius
Precision0.1
Typereal
UnitmicrosiemensPerCentimeter
Precision0.1
Typereal
Missing Value Code:          
Accuracy Report:          
Accuracy Assessment:          
Coverage:          
Methods:          

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/a9071c74bbe90d0bd2649164422aa221
Name:physiochemistry-hydrography, personnel list
Description:Personnel list with years involved in this data set
Number of Records:6
Number of Columns:8

Table Structure
Object Name:BLE_LTER_hydrography_personnel.csv
Size:702 byte
Authentication:8a92275699e3b326088362f9059de675 Calculated By MD5
Text Format:
Number of Header Lines:1
Number of Foot Lines:0
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Data package IDGiven nameMiddle nameSurnameRoleBegin yearEnd yearORCID
Column Name:datasetid  
givenname  
middlename  
surname  
role  
beginyear  
endyear  
orcid  
Definition:BLE LTER's data package IDGiven nameMiddle name or middle initialSurname or last nameRole in datasetBeginning year of role in datasetEnd year of role in datasetORCID
Storage Type:string  
string  
string  
string  
string  
dateTime  
dateTime  
string  
Measurement Type:nominalnominalnominalnominalnominaldateTimedateTimenominal
Measurement Values Domain:
Definitionany text
Definitionany text
Definitionany text
Definitionany text
Definitionany text
FormatYYYY
Precision1
FormatYYYY
Precision1
Definitionany text
Missing Value Code:                
Accuracy Report:                
Accuracy Assessment:                
Coverage:                
Methods:                

Non-Categorized Data Resource

Name:R script to process CTD data
Entity Type:otherEntity
Description:Annotated RMarkdown script to process, calibrate, and flag raw CTD data
Physical Structure Description:
Object Name:BLE_LTER_hydrography_CTD_QAQC.Rmd
Size:9674 byte
Authentication:8547b7a63fcf6c1f0913a5bd7549d9d1 Calculated By MD5
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Format Name:text/x-markdown
Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/15b7c36e20434c7a14b65e37f31210fb

Non-Categorized Data Resource

Name:R script to process TCM data
Entity Type:otherEntity
Description:Annotated RMarkdown script to process, calibrate, and flag raw TCM data
Physical Structure Description:
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Size:4740 byte
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Non-Categorized Data Resource

Name:HTML report from CTD data processing
Entity Type:otherEntity
Description:HTML report generated from RMarkdown script to process, calibrate, and flag raw CTD data
Physical Structure Description:
Object Name:BLE_LTER_hydrography_CTD_QAQC.html
Size:2022638 byte
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Non-Categorized Data Resource

Name:HTML report from TCM data processing
Entity Type:otherEntity
Description:HTML report generated from RMarkdown script to process, calibrate, and flag raw TCM data
Physical Structure Description:
Object Name:BLE_LTER_hydrography_TCM_QAQC.html
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Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/3/6/d08b0355799157a0e74247dd6ed4d092

Data Package Usage Rights

This data package is released to the “public domain” under Creative Commons CC0 1.0 “No Rights Reserved” (see: https://creativecommons.org/publicdomain/zero/1.0/). It is considered professional etiquette to provide attribution of the original work if this data package is shared or utilized in whole or by individual components. A generic citation is provided for this data package on the website of the repository where these data were obtained in the summary metadata page.

Communication (and collaboration) with the creators of this data package is recommended to prevent duplicate research or publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplication or inappropriate use. The Data User should realize that misinterpretation may occur if data are used outside of the context of the original study. The Data User should be aware that periodic updates of this data package may be available from the website and it is the responsibility of the Data User to check for new versions of the data.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy cannot be guaranteed. This data package (with its components) is made available “as is” and with no warranty of accuracy or fitness for use. The creators of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use or misuse of the data package or its components. Thank you.

External Annotations

With link(s) out to external vocabularies
Dataset isAbout lagoon
Dataset isAbout hydrological process

Keywords

By Thesaurus:
LTER Core Research Areasdisturbance, movement of inorganic matter, movement of organic matter
LTER Controlled Vocabulary v1chlorophyll a, conductivity, dissolved oxygen, estuaries, ocean currents, oceanography, oceans, salinity, sea level, seasonality, temperature, temporal properties, water column, water properties, water temperature
Geographic Names Information SystemAvak Creek, Barter Island, Elson Lagoon, Jago Lagoon, Kaktovik, Kaktovik Lagoon
BLE LTER Controlled VocabularyBeaufort Lagoon Ecosystems LTER, BLE, BLE LTER Core Program, LTER

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Hydrographic time series - in situ moorings

Benthic moorings are deployed starting August 2018 at various stations in lagoons across the Beaufort Sea coast (Elson Lagoon, Kaktovik Lagoon, and Jago Lagoon) as part of the Beaufort Lagoon Ecosystem Long Term Ecological Research program. Moorings include combinations of 1) RBR Concerto CTDs with temperature, conductivity, and pressure sensors; 2) StarOddi CTs with temperature and conductivity sensors; and 3) Lowell TCM-1 Tilt Current meters with MAT-1 Data Loggers for velocity and bearing. Instruments are anchored to the seabed with sensors ~20-70 cm from the sediment surface, but may have shifted over the deployment period. All instruments log data hourly. Date time values are in GMT-8, as instruments are first deployed during the summer in Alaska and do not adjust for Daylight Savings Time. Moorings are retrieved in August each year and replaced so data could be downloaded and instruments could be serviced.

In data from RBRConcerto instruments, a number of parameters are derived from conductivity using the UNESCO algorithms (Fofonoff and Millard, 1983): density anomaly, specific conductivity, and salinity. Sea pressure is derived by deducting atmospheric pressure, which is assumed to be 10.1325 dbar, from the total pressure measured. Sea water density is assumed to be 1.0281 g/mL. Depth is calculated as (sea pressure)/(density*0.980665). All calculations are made by the instrument manufacturer's software.

Physiochemical parameters - YSI sonde

As stations are occupied seasonally, YSI data sondes (ProDSS series) are deployed by hand to measure physiochemical parameters in the water column. At deep stations, measurements are made at the surface (within upper 30 cm) and bottom (within 30 cm of the seafloor, or at the maximum length of the deployment tether) to determine if stratification had occurred. Chlorophyll a, depth, phycoerythrin, and temperature sensors are all factory calibrated annually. Conductivity is calibrated by two-point calibration with solutions at 10,000 and 30,000 μS/cm daily to weekly during field season. pH is calibrated weekly to daily with either a two- or three-point calibration using buffers at 4.00, 7.00, and 10.00. Dissolved oxygen as a percentage of air saturation is measured with an optical probe and calibrated by wrapping a wet towel around the probe and calibrating to 100%. Dissolved oxygen concentration in milligrams per liter is derived by standard internal instrument equations from dissolved oxygen saturation, temperature, and salinity. Specific conductivity is calculated by internal instrument equations based on conductivity and temperature. Salinity is calculated by the instrument from conductivity and temperature.

Manufacturer listed accuracy of each sensor

  • YSI Temperature: ±0.2°C
  • YSI Conductivity: ±0.5% of reading or 0.001 mS/cm, whichever is greater
  • YSI Dissolved Oxygen concentration: ±0.1 mg/L or 1% of reading, whichever is greater
  • YSI Dissolved Oxygen saturation: ±1% of reading or 1% air saturation, whichever is greater
  • YSI pH: ±0.2 units
  • YSI depth: ±0.004 m
  • Lowell Heading: ±5° (for speed >5 cm/s)
  • Lowell Speed: ±2 cm/s + 3% of reading
  • RBR Temperature: ±0.002°C
  • RBR Conductivity: ±0.003mS/cm (stability 0.010mS/cm/year)
  • RBR Pressure: ±0.05% full scale
  • Star Oddi Temperature: ±0.1°C
  • Star Oddi Conductivity: ±2 mS/cm

References

Fofonoff, N. & Millard, R.. (1983). Algorithms for Computation of Fundamental Properties of Seawater. UNESCO Tech. Pap. Mar. Sci.. 44.

YSI, Xylem Inc. ProDSS Multiparameter Water Quality Meter: Specifications. Retrieved from https://www.ysi.com/prodss on December 2th, 2019.

RBR Inc. RBRConcerto: Specifications. Retrieved from https://rbr-global.com/products/standard-loggers/rbrduo-ct on December 2th, 2019.

Lowell Instruments Inc. TCM-1 Tilt Current Meter: Product Data Sheet. Retrieved from https://lowellinstruments.com/products/tcm-1-tilt-current-meter on December 2th, 2019.

Star-Oddi Inc. Conductivity, Salinity and Temperature Data Logger: Specifications. Retrieved from https://www.star-oddi.com/products/data-loggers/conductivity-logger-measuring-device on December 2th, 2019.

Description:

Post-retrieval in situ data processing

Instrument CTD and TCM data is quality assured and elements are flagged using routines built in R software (see RMarkdown scripts and HTML reports included with package). Briefly, conductivity and salinity data are tested algorithmically against the freezing point of water and deemed “invalid” if the element indicated below freezing. Data are further assessed by trained personnel who further flagged “questionable” measurements manually based on temporal trends in the temperature-salinity relationship.

If instrument temperature and conductivity data deviated consistently from YSI measurements, a linear adjustment is applied, using the YSI data as calibration points.

Data are further processed by BLE information managers for formatting purposes.

People and Organizations

Publishers:
Organization:Beaufort Lagoon Ecosystems LTER
Address:
750 Channel View Dr.,
Port Aransas, TX 78373 USA
Email Address:
BLE-IM@utexas.edu
Web Address:
https://ble.lternet.edu/
Creators:
Organization:Beaufort Lagoon Ecosystems LTER, Core Program
Address:
750 Channel View Dr.,
Port Aransas, TX 78373 USA
Email Address:
BLE-IM@utexas.edu
Web Address:
https://ble.lternet.edu/
Contacts:
Organization:Beaufort Lagoon Ecosystems LTER
Position:Information Manager
Address:
MC R8000 The University of Texas at Austin,
Austin, TX 78712 USA
Email Address:
BLE-IM@utexas.edu
Web Address:
https://ble.lternet.edu/
Associated Parties:
Individual: James W McClelland
Organization:The University of Texas at Austin
Address:
750 Channel View Dr.,
Port Aransas, TX 78383 USA
Email Address:
jimm@utexas.edu
Id:https://orcid.org/0000-0001-9619-8194
Role:principal investigator
Individual: Kenneth H Dunton
Organization:The University of Texas at Austin
Address:
750 Channel View Dr.,
Port Aransas, TX 78383 USA
Email Address:
ken.dunton@utexas.edu
Id:https://orcid.org/0000-0003-3498-8021
Role:principal investigator
Individual: Christina E Bonsell
Organization:The University of Texas at Austin
Address:
750 Channel View Dr.,
Port Aransas, TX 78383 USA
Email Address:
cbonsell@utexas.edu
Id:https://orcid.org/0000-0002-8564-0618
Role:Core Program manager, data analyst
Individual: Nathan D McTigue
Organization:The University of Texas at Austin
Address:
750 Channel View Dr.,
Port Aransas, TX 78383 USA
Email Address:
mctigue@utexas.edu
Id:https://orcid.org/0000-0002-7686-7095
Role:Core Program manager
Individual: An T Nguyen
Organization:The University of Texas at Austin
Email Address:
enthusiast@utexas.edu
Id:https://orcid.org/0000-0001-6519-0173
Role:information manager
Individual: Timothy L Whiteaker
Organization:The University of Texas at Austin
Address:
Austin, TX 78783 USA
Phone:
915-747-6887
Email Address:
whiteaker@utexas.edu
Id:https://orcid.org/0000-0002-1940-4158
Role:information manager
Metadata Providers:
Organization:Beaufort Lagoon Ecosystems LTER
Address:
750 Channel View Dr.,
Port Aransas, TX 78373 USA
Email Address:
BLE-IM@utexas.edu
Web Address:
https://ble.lternet.edu/

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
2018-07-26
End:
2019-08-15
Geographic Region:
Description:Barrow (Utqiavik): Bounding box contains Elson Lagoon and nearby river sampling sites. Located in North Slope, Alaska, USA, close to Utqiaġvik (formerly Barrow). Coordinates based on WGS84 datum.
Bounding Coordinates:
Northern:  71.395000Southern:  71.107110
Western:  -156.603000Eastern:  -155.914000
Geographic Region:
Description:Kaktovik: Bounding box contains Jago and Kaktovik Lagoons and nearby river and ocean sampling sites. Located in North Slope, Alaska, USA, close to Kaktovik. Coordinates based on WGS84 datum.
Bounding Coordinates:
Northern:  70.150159Southern:  70.070734
Western:  -143.776703Eastern:  -143.241119
Geographic Region:
Description:Prudhoe Bay: Bounding box contains Simpson Lagoon, Stefansson Sound, and nearby river and ocean sampling sites. Located in North Slope, Alaska, USA, close to Prudhoe Bay. Coordinates based on WGS84 datum.
Bounding Coordinates:
Northern:  70.568803Southern:  70.190688
Western:  -149.924927Eastern:  -147.788086

Project

Parent Project Information:

Title:LTER: Beaufort Sea Lagoons: An Arctic Coastal Ecosystem in Transition
Personnel:
Individual: Kenneth Dunton
Organization:The University of Texas at Austin, Marine Science Insitute
Phone:
361-749-6744 (voice)
Email Address:
ken.dunton@utexas.edu
Id:https://orcid.org/0000-0003-3498-8021
Role:Lead Principal Investigator
Individual: James McClelland
Organization:The University of Texas at Austin, Marine Science Insitute
Phone:
361-749-6756 (voice)
Email Address:
jimm@utexas.edu
Id:https://orcid.org/0000-0001-9619-8194
Role:Co-Lead Principal Investigator
Individual: Byron Crump
Organization:Oregon State University
Email Address:
bcrump@coas.oregonstate.edu
Id:https://orcid.org/0000-0001-7062-1273
Role:Co-Principal Investigator
Individual: Amber Hardison
Organization:The University of Texas at Austin, Marine Science Insitute
Email Address:
amber.hardison@utexas.edu
Id:https://orcid.org/0000-0002-0891-3731
Role:Co-Principal Investigator
Individual: Katrin Iken
Organization:University of Alaska Fairbanks
Email Address:
kbiken@alaska.edu
Id:https://orcid.org/0000-0001-7961-1012
Role:Co-Principal Investigator
Individual: Jeremy Kasper
Organization:University of Alaska Fairbanks
Email Address:
jlkasper@alaska.edu
Id:https://orcid.org/0000-0003-0975-6114
Role:Co-Principal Investigator
Individual: Vanessa Lougheed
Organization:The University of Texas at El Paso
Email Address:
vlougheed@utep.edu
Id:https://orcid.org/0000-0002-6091-1151
Role:Co-Principal Investigator
Individual: Andrew Mahoney
Organization:University of Alaska Fairbanks
Email Address:
armahoney@alaska.edu
Id:https://orcid.org/0000-0002-8699-3175
Role:Co-Principal Investigator
Individual: Bailey McMeans
Organization:University of Toronto Missisauga
Email Address:
bailey.mcmeans@utoronto.ca
Id:https://orcid.org/0000-0002-9793-6811
Role:Co-Principal Investigator
Individual: Michael Rawlins
Organization:University of Massachusetts Amherst
Email Address:
rawlins@geo.umass.edu
Id:https://orcid.org/0000-0002-3323-8256
Role:Co-Principal Investigator
Individual: Yvette Spitz
Organization:Oregon State University
Email Address:
yspitz@coas.oregonstate.edu
Id:https://orcid.org/0000-0002-6026-4900
Role:Co-Principal Investigator
Individual: Craig Tweedie
Organization:The University of Texas at El Paso
Email Address:
ctweedie@utep.edu
Id:https://orcid.org/0000-0002-3409-8881
Role:Co-Principal Investigator
Individual: Christina Bonsell
Organization:The University of Texas at Austin
Email Address:
cbonsell@utexas.edu
Id:https://orcid.org/0000-0002-8564-0618
Role:Project Manager
Individual: Nathan McTigue
Organization:The University of Texas at Austin
Email Address:
mctigue@utexas.edu
Id:https://orcid.org/0000-0002-7686-7095
Role:Project Manager
Individual: Timothy Whiteaker
Organization:The University of Texas at Austin
Email Address:
whiteaker@utexas.edu
Id:https://orcid.org/0000-0002-1940-4158
Role:Information Manager
Individual: An T. Nguyen
Organization:The University of Texas at Austin
Email Address:
enthusiast@utexas.edu
Id:https://orcid.org/0000-0001-6519-0173
Role:Information Manager
Abstract:

This project established a new Long Term Ecological Research (LTER) site along the Alaskan Arctic coastline. Research based out of Utqiagvik (formerly Barrow), Deadhorse, and Kaktovik will address how changes in shoreline erosion and freshwater inflows to the coastal ocean over seasonal, annual, and longer timeframes influence near-shore food webs. Research will be conducted in collaboration with local stakeholder groups and the U.S. Fish and Wildlife Service. This research will advance our fundamental understanding of how input of materials from land and oceanographic conditions interact to influence coastal food webs. It will also allow us to track and understand: 1) how natural climate cycles influence coastal ecosystems in the Arctic, and 2) how climate change effects such as permafrost thaw, shifting precipitation regimes, and losses of sea ice alter coastal ecosystems. Near-shore food webs along the Alaskan Arctic coastline support large populations of migratory fish and waterfowl that are essential to the culture of Iñupiat communities of northern Alaska. The research at this LTER site will create a framework for anticipating the impacts of future changes on the coastal ecosystem that are of great concern to these communities. Results from this LTER program will also be of interest to a broader science community that is working to understand potential connections between Arctic change and global carbon cycling. Finally, this LTER project includes a strong commitment to education through graduate and undergraduate student involvement, post-doctoral mentoring, continuation of a very successful Summer Science K-12 Program in Kaktovik, and establishment of a parallel K-12 program in Utqiagvik. In addition, this project will employ native high school seniors or recently graduated students living in Utqiagvik and Kaktovik as field research assistants.

Recent studies suggest that the ecological framework for understanding what controls food web structure needs to be expanded to include temporal forcing. More specifically, there is mounting evidence that differential availability of seasonally-distinct resources is critical for defining trophic linkages and maintaining stability and resilience of food webs. This new LTER program will use lagoons along the Alaskan Beaufort Sea coast as experimental units to test this concept, and broaden it to include temporal variations over longer timeframes. The Beaufort lagoons are ideal for testing this concept because they experience extreme variability in seasonal cycles, which are now subject to rapid directional shifts driven by climate change. Our overarching question is: How do variations in terrestrial inputs, local production, and exchange between lagoon and ocean waters over seasonal, inter-annual, inter-decadal, and longer timeframes interact to control food web structure through effects on carbon and nitrogen cycling, microbial and metazoan community composition, and trophic linkages? Arctic lagoons provide a unique opportunity to study these interactions in the absence of fringing wetlands that often modulate land-ocean interactions in other lagoon systems. In addition, barrier island geomorphology, which exerts a strong control on water exchange between lagoons and the open ocean, is highly dynamic in the Arctic because sea-ice effects on coastal geomorphology are superimposed on the effects of currents, sea level, and waves. Thus, connections between inputs from land and lagoon ecosystems are more direct, and water exchanges between lagoons and the open ocean are more variable than is typical of lower latitude systems. Specific study sites will be located in Elson Lagoon (western Beaufort), Simpson Lagoon and Stefansson Sound (central Beaufort), and Kaktovik and Jago lagoons (eastern Beaufort). The LTER will include seasonal field work during ice covered, ice break-up, and open water periods and also include sensor deployments for continuous measurements of key biogeochemical and hydrographic parameters.

Funding:

BLE LTER is supported by the National Science Foundation under award #1656026 (2017-08-01 to 2022-07-31).

Additional Award Information:
Funder:National Science Foundation
Funder ID:http://dx.doi.org/10.13039/100000001
Number:1656026
Title:LTER: Beaufort Sea Lagoons: An Arctic Coastal Ecosystem in Transition
URL:https://www.nsf.gov/awardsearch/showAward?AWD_ID=1656026

Maintenance

Maintenance:
Description:Dataset will be updated every year, normally scheduled for the fall and spring following field season.
Frequency:annually
Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |        \___attribute 'abbreviation' = 'm_s'
        |     |     |        \___attribute 'id' = 'meterPerSecond'
        |     |     |        \___attribute 'name' = 'meterPerSecond'
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        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'uS_cm'
        |     |     |     |  \___attribute 'id' = 'microsiemensPerCentimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'microsiemensPerCentimeter'
        |     |     |     |  \___attribute 'unitType' = 'conductance'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'microsiemens per centimeter'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'dimensionless'
        |     |     |     |  \___attribute 'name' = 'dimensionless'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'a designation asserting the absence of an associated unit'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'percent'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'ratio of two quantities as percent composition (1:100)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'mg_l'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'milligramPerLiter'
        |     |     |     |  \___attribute 'name' = 'milligramPerLiter'
        |     |     |     |  \___attribute 'parentSI' = 'kilogramPerCubicMeter'
        |     |     |     |  \___attribute 'unitType' = 'volumetricMassDensity'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'concentration unit, sometimes used for pigments in natural waters'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'degree'
        |     |     |     |  \___attribute 'id' = 'degree'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.0174532924'
        |     |     |     |  \___attribute 'name' = 'degree'
        |     |     |     |  \___attribute 'parentSI' = 'radian'
        |     |     |     |  \___attribute 'unitType' = 'angle'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text '360 degrees comprise a unit circle.'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'dbar'
        |     |     |     |  \___attribute 'id' = 'decibar'
        |     |     |     |  \___attribute 'multiplierToSI' = '10000'
        |     |     |     |  \___attribute 'name' = 'decibar'
        |     |     |     |  \___attribute 'parentSI' = 'pascal'
        |     |     |     |  \___attribute 'unitType' = 'pressure'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'decibar = 0.1 bar'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'cm_s'
        |     |     |     |  \___attribute 'id' = 'centimeterPerSecond'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.01'
        |     |     |     |  \___attribute 'name' = 'centimeterPerSecond'
        |     |     |     |  \___attribute 'parentSI' = 'metersPerSecond'
        |     |     |     |  \___attribute 'unitType' = 'speed'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'centimeters per second'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'm'
        |     |     |     |  \___attribute 'id' = 'meter'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'meter'
        |     |     |     |  \___attribute 'unitType' = 'length'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'SI unit of length'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'C'
        |     |     |     |  \___attribute 'constantToSI' = '273.18'
        |     |     |     |  \___attribute 'id' = 'celsius'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'celsius'
        |     |     |     |  \___attribute 'parentSI' = 'kelvin'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'SI-derived unit of temperature'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'ug_l'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'microgramPerLiter'
        |     |     |     |  \___attribute 'name' = 'microgramPerLiter'
        |     |     |     |  \___attribute 'parentSI' = 'gramPerMeterCubed'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'concentration unit. Based on the dimensions (mass/volume), the unitType is probably density, but this would be misleading, so it is left NULL here.'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'abbreviation' = 'g_cm3'
        |     |     |     |  \___attribute 'id' = 'gramsPerCubicCentimeter'
        |     |     |     |  \___attribute 'multiplierToSI' = '1000'
        |     |     |     |  \___attribute 'name' = 'gramsPerCubicCentimeter'
        |     |     |     |  \___attribute 'parentSI' = 'kilogramsPerCubicMeter'
        |     |     |     |  \___attribute 'unitType' = 'massDensity'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'grams per cubic centimeter'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

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