Search Data.gov
Found 4116 dataset(s) matching "great".
-
Observations and subtle shifts of aquatic vegetation communities in Lake Erie have USGS researchers concerned about the potential for grass carp and other threats to alter these vegetation...
-
New gravity and magnetic compilations and elevation-bathymetry models have been compiled for the Lake Superior region. These data provide continuous sets of observations for geologic...
-
This dataset was constructed from readily available open source climate and vegetation data, like Landsat. This dataset represents the vegetation and climate conditions for a large number of...
-
<p dir="ltr">Use of perennial forages in cropping systems can improve soil quality. The length of time needed to accrue improvements in soil condition under perennial forages is unclear,...
-
This shapefile represents habitat suitability categories (High, Moderate, Low, and Non-Habitat) derived from a composite, continuous surface of sage-grouse habitat suitability index (HSI) values...
-
Observations and subtle shifts of aquatic vegetation communities in Lake Erie have USGS researchers concerned about the potential for grass carp and other threats to alter these vegetation...
-
These datasets provide early estimates of 2025 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from mid April to late June....
-
These datasets provide early estimates of 2025 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from mid April to late June....
-
These datasets provide early estimates of 2025 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from mid-April to late June....
-
We provide fractional cover estimates for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from mid-April to late June 2025. The cover estimates reflect...
-
Lake trout (Salvelinus namaycush) egg density estimates in Lake Ontario from egg pumping, 2020, 2024
This data set contains Lake Trout (Salvelinus namaycush) egg density estimates obtained from suction sampling across five locations in Lake Ontario. These data were collected in October-November...
-
Ice breakup dates of Chequamegon Bay, Lake Superior from 1911 to 2022 were compiled by Lori Evrard (USGS, GLSC, Lake Superior Biological Station, Ashland, WI). Ice breakup date is the day in...
-
This data set consists of static ground-water levels for the State of Nevada based on a 1974 ground-water map (Rush, 1974) published by the Nevada Department of Conservation and Natural...
-
Orthorectified image from aerial photograph of wetland P7 in the Cottonwood Lake Study Area, Stutsman County, North Dakota. This image is part of a collection of photographs of the study area...
-
This data set consists of 1:500,000-scale water-level altitude contours for the Humboldt River Basin, Nevada as published in the Nevada Department of Conservation and Natural Resources Water...
-
This raster portrays the distribution of sagebrush within the geographic extent of the sagebrush biome in the United States. It was created for the Western Association of Fish and Wildlife...
-
Anthropogenic activities introduce complex mixtures into aquatic environments, necessitating the evaluation of mixture toxicity during ecological risk assessments. There are many new approach...
-
Cell maps for each oil and gas assessment unit were created by the USGS as a method for illustrating the degree of exploration, type of production, and distribution of production in an assessment...
-
Amplicon sequence variants from benthic and zooplankton samples generated using COI and 18S primers
-
This data set consists of digital base of aquifer elevation contours for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost...
