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LTRM Water Quality Sampling Strata

Dates

Publication Date
Start Date
1989
End Date
1992

Citation

Rogala, J., 2015, LTRM Water Quality Sampling Strata: U.S. Geological Survey data release, https://doi.org/10.5066/F7KD1W05.

Summary

The data set includes delineation of sampling strata for the six study reaches of the UMRR Program’s LTRM element. Separate strata coverages exist for each of the three monitoring components (fish, vegetation, and water quality) to meet the differing sampling needs among components. Generally, the sampling strata consist of main channel, side channel, backwater, and impounded areas. The fish component further delineates a “shoreline” portion of the strata to be used for sampling gears deployed only along the shoreline. The data are raster in origin, with the center of each pixel representing the sampling location. Cell size is typically 50 meters, although several water quality strata are at 200 meter cell size.

Contacts

Metadata Contact :
James T Rogala
Point of Contact :
James T Rogala

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Purpose

The sampling strata were generated to be used for randomly selecting LTRM sampling locations. A reselection is performed for each sampling event. The selection is made in a statistical software package (SAS) using the center point locations for each cell with designation to one of the strata and IDs consecutively numbered within strata.
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Communities

  • Upper Midwest Environmental Sciences Center (UMESC)

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7KD1W05

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