Data Package Metadata View Summary

Hypereutrophic lake sensor data during summer algae blooms in Iowa, USA, 2014 - 2018

General Information

Data Package:
Local Identifier:	edi.403.1
Title:	Hypereutrophic lake sensor data during summer algae blooms in Iowa, USA, 2014 - 2018
Alternate Identifier:	DOI PLACE HOLDER
Abstract:	High frequency measurements of temperature, dissolved oxygen saturation, pH, chlorophyll a and phycocyanin concentration were measured using a multiparameter sonde in the surface waters of four lakes during the ice-free season to monitor for harmful algal blooms. The lakes are located in the state of Iowa, USA. Green Valley Lake as monitored in 2014 and 2015, Blackhawk Lake was monitored in 2015, and Swan Lake and South Twin Lake were monitored in 2018. The high frequency data were aggregated to a daily average value for each parameter in each lake. These data were used to test for statistical early warning indicators of harmful algal blooms.
Publication Date:	2019-07-30

Time Period

Begin:

2014-06-10

End:

2018-09-21

People and Organizations
Contact:	Ortiz, David A (Iowa State University) [ email ]
Contact:	Palmer, Jason (Iowa Department of Natural Resources) [ email ]
Contact:	Wilkinson, Grace M (Iowa State University) [ email ]
Creator:	Ortiz, David A (Iowa State University)
Creator:	Palmer, Jason (Iowa Department of Natural Resources)
Creator:	Wilkinson, Grace M (Iowa State University)
Associate:	Wagner, Ryan (Iowa State University, Field Crew)
Associate:	Fleck, Rachel (Iowa State University, Quality Assurance Manager)

Data Entities
Data Table Name:	Daily sensor data from three lakes in Iowa
Description:	Daily sensor data from three lakes in Iowa

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/403/1/b662fbab6f927038fe657f262f7f55fb
Name:	Daily sensor data from three lakes in Iowa
Description:	Daily sensor data from three lakes in Iowa
Number of Records:	643
Number of Columns:	8

Table Structure

Object Name:

IowaLake_HighFrequency_EDI.csv

Size:

34565 bytes

Authentication:

787d4ac73184fe09a9ab300c334a4f8f Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Column Name:

Lake

Year

DOY

Chlorophyll

Phycocyanin

DissolvedOxygen_Saturation

Temperature

Definition:

Name of the lake as listed in the Iowa Department of Natural Resources database

Year of sampling

Julian day of year

Mean chlorophyll a concentration for that day of year and lake, calculated from the higher frequency measurements

Mean phycocyanin concentration for that day and lake, calculated from the higher frequency measurements

Mean dissolved oxygen saturation for that day and lake, calculated from the higher frequency measurements

Mean pH value for that day and lake, calculated from the higher frequency measurements

Water temperature for that day and lake, calculated from the higher frequency measurements

Storage Type:

string

float

Measurement Type:

nominal

ratio

Measurement Values Domain:

Definition

Name of the lake as listed in the Iowa Department of Natural Resources database

Unit	nominalYear
Type	natural
Min	2014
Max	2018

Unit	number
Type	natural
Min	128
Max	281

Unit	microgramsPerLiter
Type	real
Min	0.13
Max	169.05

Unit	microgramsPerLiter
Type	real
Min	0.16
Max	70.18

Unit	percentSaturation
Type	real
Min	9.77
Max	314.77

Unit	dimensionless
Type	real
Min	7.51
Max	10.34

Unit	celsius
Type	real
Min	13.49
Max	29.6

Missing Value Code:

Code	NA
Expl	not available

Code	NA
Expl	not available

Code	NA
Expl	not available

Code	NA
Expl	not available

Code	NA
Expl	not available

Code	NA
Expl	not available

Code	NA
Expl	not available

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. 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 duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
LTER Controlled Vocabulary	lake, algae, limnology, water temperature
(No thesaurus)	bloom, sonde, hypereutrophic, eutrophic, Iowa lakes, chlorophyl, Phycocyanin, Dissolved Oxygen Saturation , pH, Temperature

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:

The multiparameter sondes were deployed over the deep point at each lake at 0.5 m depth. The sensors took measurements of temperature, dissolved oxygen, pH, chlorophyll a and phycocyanin concentration every 30 minutes. The measurements were then averaged to a daily value using all measurements between 12:00 and 23:59 for each parameter. The multiparameter sondes were YSI EXO2s (Xylem, Inc) in 2014 and 2015 and YSI EXO3s (Xylem, Inc) in 2018. The sensors were calibrated monthly in 2014 and 2015 and when indicated by the sensor software in 2018.

People and Organizations

Creators:

Individual:

David A Ortiz

Organization:

Iowa State University

Email Address:

ortiz@iastate.edu

Individual:

Jason Palmer

Organization:

Iowa Department of Natural Resources

Email Address:

Jason.Palmer@dnr.iowa.gov

Individual:

Grace M Wilkinson

Organization:

Iowa State University

Email Address:

wilkinso@iastate.edu

Contacts:

Individual:

David A Ortiz

Organization:

Iowa State University

Email Address:

ortiz@iastate.edu

Individual:

Jason Palmer

Organization:

Iowa Department of Natural Resources

Email Address:

Jason.Palmer@dnr.iowa.gov

Individual:

Grace M Wilkinson

Organization:

Iowa State University

Email Address:

wilkinso@iastate.edu

Associated Parties:

Individual:

Ryan Wagner

Organization:

Iowa State University

Email Address:

rsw@iastate.edu

Role:

Field Crew

Individual:

Rachel Fleck

Organization:

Iowa State University

Email Address:

rfleck@iastate.edu

Role:

Quality Assurance Manager

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2014-06-10

End:

2018-09-21

Sampling Site:

Description:

South Twin Lake

Site Coordinates:

Longitude (degree):

-94.647793

Latitude (degree):

42.463965

Sampling Site:

Description:

Green Valley Lake

Site Coordinates:

Longitude (degree):

-94.386716

Latitude (degree):

41.101612

Sampling Site:

Description:

Black Hawk Lake

Site Coordinates:

Longitude (degree):

-95.024903

Latitude (degree):

42.291587

Sampling Site:

Description:

Swan Lake

Site Coordinates:

Longitude (degree):

94.842906

Latitude (degree):

42.037089

Project

Parent Project Information:

Title:

Developing early warning tools of harmful algal blooms in lakes

Personnel:

Individual:	Grace M Wilkinson
Role:	Principal Investigator

Funding:

Center for Global and Regional Environmental Research

Maintenance

Maintenance:

Description:	completed
Frequency:

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList'
        |     |     |___text '\n        '
        |     |     |___element 'unit'
        |     |     |     |  \___attribute 'id' = 'percentSaturation'
        |     |     |     |  \___attribute 'multiplierToSI' = ''
        |     |     |     |  \___attribute 'name' = 'percentSaturation'
        |     |     |     |  \___attribute 'parentSI' = ''
        |     |     |     |  \___attribute 'unitType' = ''
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

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Data Package Metadata View Summary

Hypereutrophic lake sensor data during summer algae blooms in Iowa, USA, 2014 - 2018

Data Entities

Data Table

Data Package Usage Rights

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

Hypereutrophic lake sensor data during summer algae blooms in Iowa, USA, 2014 - 2018

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- 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

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata