Data Package Metadata View Summary

Carbon and nitrogen content and stable isotope compositions from particulate organic matter samples from lagoon, river, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

General Information

Data Package:

Local Identifier:

knb-lter-ble.11.10

Title:

Carbon and nitrogen content and stable isotope compositions from particulate organic matter samples from lagoon, river, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Multiple water types (river, lagoon, ocean) from the North Slope of Alaska and nearshore Beaufort Sea are sampled seasonally by the Beaufort Lagoon Ecosystems LTER (BLE LTER) Core Program to investigate biogeochemical linkages between terrestrial, lagoon, and open ocean ecosystems. Water samples are collected during full ice cover (April), ice break-up (mid-June to early July), and open water (late July and August) periods, and analyzed for particulate organic carbon (POC) and particulate organic nitrogen (PON) content and stable isotopic composition.

Short Name:

POM

Publication Date:

2023-03-10

Language:

English

For more information:
Visit:	https://ble.lternet.edu
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2018-07-23

End:

2022-08-09

People and Organizations
Contact:	Information Manager (Beaufort Lagoon Ecosystems LTER) [ email ]
Organization:	Beaufort Lagoon Ecosystems LTER, Core Program
Associate:	McClelland, James W (Marine Biological Laboratory, principal investigator)
Associate:	Bristol, Emily M (The University of Texas at Austin, field and lab technician)
Associate:	Bonsell, Christina E (The University of Texas at Austin, field and lab technician, Core Program manager)
Associate:	McTigue, Nathan D (The University of Texas at Austin, field and lab technician, Core Program manager)
Associate:	Plumb, Kaylie H (The University of Texas at Austin, field and lab technician)
Associate:	Hladyniuk, Ryan (The University of Texas at Austin, lab technician)
Associate:	Sanders, Aquanette (The University of Texas at Austin, lab technician)
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:	Stable isotopes from particulate organic matter (POM)
Description:	Carbon and nitrogen stable isotope composition of particulate organic matter from BLE LTER Core Program sampling, 2018-ongoing
Data Table Name:	Stable isotopes from particulate organic matter (POM), personnel list
Description:	Personnel list with years involved in this data set

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/11/10/b62a59151303c43da9401508a9185228
Name:	Stable isotopes from particulate organic matter (POM)
Description:	Carbon and nitrogen stable isotope composition of particulate organic matter from BLE LTER Core Program sampling, 2018-ongoing
Number of Records:	219
Number of Columns:	19

Table Structure

Object Name:

BLE_LTER_POM.csv

Size:

43504 byte

Authentication:

a6673b663156d0f1e2ab97bfb601ee80 Calculated By MD5

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Station node

Station lagoon

Station

Sampling season

Date time

Water column position

Delta 13C

Carbon concentration

Delta 15N

Nitrogen concentration

Carbon data flag

Nitrogen data flag

Carbon to nitrogen molar ratio

Collection method

Station name

Latitude

Longitude

Habitat type

Station sampling priority

Column Name:

node

lagoon

station

season

date_time

water_column_position

d13C

C_umol_L

d15N

N_umol_L

flag_C

flag_N

C_N_molar_ratio

collection_method

station_name

latitude

longitude

habitat_type

station_sampling_priority

Definition:

One of three research nodes in BLE LTER's research program

Lagoon where BLE LTER Core Program station is located

BLE LTER Core Program station code

BLE LTER Core Program sampling season

Date and time sample was collected, in ISO 8601 format YYYY-MM-DDThh:mm:ss-hh. Noon local time (AKDT in most cases) is used as a placeholder when times were not recorded (e.g. 2021 and prior).

Where sample was taken within water column

Delta 13C

Carbon concentration

Delta 15N

Nitrogen concentration

Carbon data flag

Nitrogen data flag

Carbon to nitrogen molar ratio

How water was collected in the field

BLE LTER's Core Program station name

Latitude 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. Coordinates based on WGS84 datum.

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. Coordinates based on WGS84 datum.

Habitat type (river, lagoon, ocean)

BLE LTER Core Program station sampling priority. For internal use.

External Measurement Definition, Link:

containsMeasurementsOfType d13C

containsMeasurementsOfType particulate organic carbon concentration

containsMeasurementsOfType d15N

containsMeasurementsOfType particular organic nitrogen concentration

containsMeasurementsOfType carbon to nitrogen molar ratio

Storage Type:

string

dateTime

string

decimal

string

decimal

string

decimal

string

Measurement Type:

nominal

dateTime

nominal

ratio

nominal

ratio

nominal

interval

nominal

Measurement Values Domain:

Definition

any text

Definition

any text

Definition

any text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	under ice
Definition	Sampling occurred in winter season (e.g. April) when the lagoons are mostly frozen.
Source

Code Definition

Code	break up
Definition	Sampling occurred in spring season (e.g. June) when ice break-up happens.
Source

Code Definition

Code	open water
Definition	Sapling occurred in summer season (e.g. late July/early August) when the lagoons have mostly open water.
Source

Format	YYYY-MM-DDThh:mm:ss-hh
Precision	3600

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	surface
Definition	water collected from approximately 0-30 cm below the surface
Source

Code Definition

Code	bottom
Definition	water collected from approximately 30 cm above the bottom
Source

Unit	permil
Precision	0.1
Type	real

Unit	microMolesPerLiter
Precision	0.1
Type	real

Unit	permil
Precision	0.1
Type	real

Unit	microMolesPerLiter
Precision	0.1
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	VALID
Definition	carbon content of sample does not have residual carbonates
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	VALID
Definition	nitrogen content of sample well within bounds of detection
Source

Code Definition

Code	LOST
Definition	sample was lost or contaminated
Source

Code Definition

Code	QM
Definition	Questionable data value as determined by trained personnel
Source

Unit	dimensionless
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	pump
Definition	water was collected using a Geopump fitted with Masterflex tubing
Source

Code Definition

Code	grab
Definition	water was collected directly in a bottle
Source

Definition

any text

Unit	degree
Type	real
Min	-90
Max	90

Unit	degree
Type	real
Min	-180
Max	180

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	lagoon
Definition	Lagoon
Source

Code Definition

Code	ocean
Definition	Ocean
Source

Code Definition

Code	river
Definition	Freshwater river
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	primary
Definition	Lagoon site is primarily sampled during field sampling.
Source

Code Definition

Code	secondary
Definition	Lagoon site is secondarily sampled during field sampling.
Source

Code Definition

Code	river
Definition	River site
Source

Code Definition

Code	ocean
Definition	Nearshore ocean site
Source

Missing Value Code:

Code	NA
Expl	missing or invalid, see corresponding flag column

Code	NA
Expl	missing or invalid, see corresponding flag column

Code	NA
Expl	missing or invalid, see corresponding flag column

Code	not applicable
Expl	Sampling priority not applicable to site

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-ble/11/10/ac9c7449507f4ed8ac38070032ea641f
Name:	Stable isotopes from particulate organic matter (POM), personnel list
Description:	Personnel list with years involved in this data set
Number of Records:	9
Number of Columns:	8

Table Structure

Object Name:

BLE_LTER_POM_personnel.csv

Size:

1014 byte

Authentication:

4970dbe790076c46c0219ddeae01ae32 Calculated By MD5

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Data package ID

Given name

Middle name

Surname

Role

Begin year

End year

ORCID

Column Name:

datasetid

givenname

middlename

surname

role

beginyear

endyear

orcid

Definition:

BLE LTER's data package ID

Given name

Middle name or middle initial

Surname or last name

Role in dataset

Beginning year of role in dataset

End year of role in dataset

ORCID

Storage Type:

string

dateTime

string

Measurement Type:

nominal

dateTime

nominal

Measurement Values Domain:

Definition

any text

Definition

any text

Definition

any text

Definition

any text

Definition

any text

Format	YYYY
Precision	1

Format	YYYY
Precision	1

Definition

any text

Missing Value Code:

Code	NA
Expl	not available/applicable

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

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 may be distributed, remixed, and built upon. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. 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 consumer of these data ("Data User" herein) 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. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. 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

Keywords

By Thesaurus:
LTER Core Research Areas	movement of organic matter
LTER Controlled Vocabulary v1	biogeochemistry, carbon, carbon to nitrogen ratio, nitrogen, particulate organic carbon, runoff, seawater, stable isotopes
Geographic Names Information System	Avak Creek, Barter Island, Elson Lagoon, Jago Lagoon, Kaktovik, Kaktovik Lagoon, Mayoeak River, Sagavanirktok River, Simpson Lagoon, Stefansson Sound, Utqiagvik
BLE LTER Controlled Vocabulary	Beaufort 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:

Water samples are collected by hand (near surface “grabs” where bottles are filled directly) or with a peristaltic pump (various depths). In the latter case, Masterflex C-flex tubing is used. Water is collected in high-density polyethylene (HDPE) or polycarbonate bottles in the field. Samples are transported back to the lab and filtered in duplicate onto 25 mm Whatman GF/F glass fiber filters (pre-combused at 450 °C for at least 24 hours) within 12 hours of collection. Samples are stored in coolers during transport and refrigerated until filtration. After filtration, samples are dried at 60 °C, then stored in a desiccator until analysis at The University of Texas Marine Science Institute, Port Aransas, TX.

Carbon and nitrogen mass and stable isotope ratios of the material on the filters are measured at the Core Facilities Laboratory at The University of Texas Marine Science Institute in Port Aransas, Texas. Prior to analysis, samples for organic carbon analyses are acidified with 10% HCl (with 6% H₂SO₃ prior to July 2019) in a glass petri dish to remove carbonates. Samples for nitrogen measurement are not acidified. Filters containing sample material are wrapped in tin capsules, and analyzed using a Thermo Fisher EA-Isolink-CNSOH coupled to a Thermo Fisher Scientific Delta V continuous flow (He) stable-isotope-ratio mass spectrometer. The isotope results are presented using the conventional δ-notation:

δ¹³C or δ¹⁵N = [(Rsample/Rstandard)-1] (in ‰)

where Rsample and Rstandard = ¹³C/¹²C or ¹⁵N/¹⁴N. A two-point calibration of δ¹³C or δ¹⁵N to VPDB or AIR, respectively, is achieved using certified USGS-40 (δ¹³C =−26.39‰, δ¹⁵N =−4.5‰) and USGS-41a (δ¹³C =+36.55‰, δ¹⁵N =+47.55‰) standards. An internal standard (Casein protein; δ¹³C = -26.98‰, δ¹⁵N = +65.94‰) is used to confirm instrument accuracy and analytical precision (less than or equal to ±0.2‰ standard deviation). However, it should be noted that analytical precision of actual samples may vary depending on sample type. For particulate organic nitrogen (PON) samples run on glass fiber filters, repeated measures (60 reps) of homogenous source material run over a 3 day period showed analytical precision of δ¹⁵N to be ±0.5‰. Analytical precision of the particulate organic carbon samples run on glass fiber filters is expected to be less than or equal to that of PON. A size series of Casein protein is also included in each analytical run to test and correct for instrument non-linearity and blank effects as needed. The Casein size series serves as a standard curve for calculating C and N masses as well.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

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/

Id:

https://ror.org/055a54548

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/

Id:

https://ror.org/055a54548

Associated Parties:

Individual:

James W McClelland

Organization:

Marine Biological Laboratory

Address:

Marine Biological Laboratory 7 MBL Street,

Woods Hole, MA 02543 USA

Phone:

508-289-7162

Email Address:

jmcclelland@mbl.edu

Web Address:

https://www.mbl.edu/research/faculty-and-whitman-scientists/James%20McClelland

Id:

https://orcid.org/0000-0001-9619-8194

Role:

principal investigator

Individual:

Emily M Bristol

Organization:

The University of Texas at Austin

Address:

750 Channel View Dr.,

Port Aransas, TX 78383 USA

Email Address:

bristol@utexas.edu

Id:

https://orcid.org/0000-0002-6059-3771

Role:

field and lab technician

Individual:

Christina E Bonsell

Organization:

The University of Texas at Austin

Address:

750 Channel View Dr.,

Port Aransas, TX 78383 USA

Email Address:

cebonsell@gmail.com

Id:

https://orcid.org/0000-0002-8564-0618

Role:

field and lab technician, Core Program manager

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:

field and lab technician, Core Program manager

Individual:

Kaylie H Plumb

Organization:

The University of Texas at Austin

Address:

750 Channel View Dr.,

Port Aransas, TX 78383 USA

Email Address:

kaylie.plumb@austin.utexas.edu

Id:

https://orcid.org/0000-0001-6071-0547

Role:

field and lab technician

Individual:

Ryan Hladyniuk

Organization:

The University of Texas at Austin

Address:

750 Channel View Dr.,

Port Aransas, TX 78383 USA

Email Address:

r.hladyniuk@austin.utexas.edu

Id:

https://orcid.org/0000-0003-4627-8174

Role:

lab technician

Individual:

Aquanette Sanders

Organization:

The University of Texas at Austin

Address:

750 Channel View Dr.,

Port Aransas, TX 78383 USA

Email Address:

aqua.sanders@utexas.edu

Role:

lab technician

Individual:

An T Nguyen

Organization:

The University of Texas at Austin

Address:

Austin, TX 78758 USA

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 78758 USA

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/

Id:

https://ror.org/055a54548

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2018-07-23

End:

2022-08-09

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:	71.395000	Southern:	71.107110
Western:	-156.603000	Eastern:	-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:	70.150159	Southern:	70.070734
Western:	-143.776703	Eastern:	-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:	70.568803	Southern:	70.190688
Western:	-149.924927	Eastern:	-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 Institute

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:

Marine Biological Laboratory

Phone:

508-289-7162 (voice)

Email Address:

jmcclelland@mbl.edu

Id:

https://orcid.org/0000-0001-9619-8194

Role:

Co-Lead Principal Investigator

Individual:

Byron Crump

Organization:

Oregon State University

Email Address:

byron.crump@oregonstate.edu

Id:

https://orcid.org/0000-0001-7062-1273

Role:

Co-Principal Investigator

Individual:

Amber Hardison

Organization:

Virginia Institute of Marine Science, College of William & Mary

Email Address:

akhardison@vims.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:

mrawlins@umass.edu

Id:

https://orcid.org/0000-0002-3323-8256

Role:

Co-Principal Investigator

Individual:

Yvette Spitz

Organization:

Oregon State University

Email Address:

yvette.spitz@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:

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 - Office of Polar Programs

Funder ID:

https://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

History:


scope:	Metadata and data
old value:	See previous revision 1
change date:	2022-02-22
comment:	An Nguyen : Add data from 2021 field campaigns, revise 2018-2019 data to only one decimal place. Change all dates collected YYYY-MM-DD to date times collected YYYY-MM-DDThh:mm:ss-hh. Noon local time (AKDT in most cases) is used as a placeholder when times were not recorded (e.g. 2021 and prior). Stefansson Sound stations now denoted with a SSL prefix instead of STL as in previous versions.

scope:	Metadata and data
old value:	See previous revision 2
change date:	2023-03-10
comment:	An Nguyen : Add data from 2022 field campaigns. Some sampling stations during previous years' break up season (June/July) and their coordinates were corrected to better represent actual sampling location at the time. SIL Trans A station coordinates were corrected.

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___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 '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' = 'umol_L'
        |     |     |     |  \___attribute 'id' = 'microMolesPerLiter'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000001'
        |     |     |     |  \___attribute 'name' = 'microMolesPerLiter'
        |     |     |     |  \___attribute 'unitType' = 'amountOfSubstanceConcentration'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'µM = µmoles per liter of solution'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'permil'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.001'
        |     |     |     |  \___attribute 'name' = 'permil'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |     |___text 'permil is a shorthand way of saying parts per thousand parts. values must have the same dimensions.'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Carbon and nitrogen content and stable isotope compositions from particulate organic matter samples from lagoon, river, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

Data Entities

Data Table

Data Table

Data Package Usage Rights

External Annotations

Keywords

Methods and Protocols

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

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

Carbon and nitrogen content and stable isotope compositions from particulate organic matter samples from lagoon, river, and open ocean sites along the Alaska Beaufort Sea coast, 2018-ongoing

+/- Data Entities

Data Table

Data Table

+/- Data Package Usage Rights

+/- External Annotations

+/- Keywords

+/- Methods and Protocols

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

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

External Annotations

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata