Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Diatoms in lake sediments from western Great Lake parks

Metadata Updated: June 5, 2024

These datasets contain counts of diatom taxa in various long cores and surface samples from lake bottom sediments. Samples were collected as part of water quality monitoring activities by the National Park Service Great Lakes Inventory and Monitoring Network. Core samples were collected at 19 lakes in five national parks. Samples from various depths within the sediment cores were removed for analysis. Each sample was radiometrically dated using the lead 210 method. Samples were also examined to identify and determine a count tally for each diatom taxon. By associating a taxa assemblage with a sediment date, some inferences can be made about the water chemistry and quality at the time of sediment formation. Additionally, samples were collected from the lake bottom surface and similarly tallied to identify diatom taxa recently found within the lake waters

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources



Metadata Created Date June 1, 2023
Metadata Updated Date June 5, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date June 5, 2024
Publisher National Park Service
Identifier NPS_DataStore_2284621
Data First Published 2021-01-01T12:00:00Z
Data Last Modified 2021-01-01
Category Tabular Dataset
Public Access Level public
Bureau Code 010:24
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Data Quality True
Harvest Object Id d7a3c2cd-7584-4b33-a977-b2d8cbb26b98
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Homepage URL
Old Spatial -93.2036057,44.6592178,-85.79612,48.63152
Program Code 010:118, 010:119
Publisher Hierarchy White House > U.S. Department of the Interior > National Park Service
Related Documents
Source Datajson Identifier True
Source Hash c822870f66baa36bdc7e56d08ae78de06d93650ab5b207469a70004d47c9e1d0
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -93.2036057, 44.6592178, -93.2036057, 48.63152, -85.79612, 48.63152, -85.79612, 44.6592178, -93.2036057, 44.6592178}
Temporal 1996-01-01T12:00:00Z/2017-01-01T12:00:00Z

Didn't find what you're looking for? Suggest a dataset here.