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Found 172 dataset(s) matching "aerial counts".
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The vertical land change activity focuses on the detection, analysis, and explanation of topographic change. These detection techniques include both quantitative methods, for example, using...
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This data set contains vessel- and aircraft-based marine mammal surveys in the Chukchi Sea collected from 1989 to 1991. The aerial marine mammal surveys were conducted by EBASCO to determine the...
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The geolocated counts for the Waterfowl Breeding Population and Habitat Survey and associated segment effort information from 2000 to present. The survey was not conducted in 2020-21 due to the...
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This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the...
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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 8 4;"><SPAN>This layer serves as the authoritative geographic data source for California's K-12 public school locations during the...
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A moose population survey was conducted on the Yukon Flats in November 2015. This was the first fall survey since 2010 due to a lack of sufficient snow in early winter that caused surveys in...
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A moose population survey was conducted on the Yukon Flats National Wildlife Refuge in March 2023. Moose were counted in 102 of 421-5.3 mi2 units, of which 67 were stratified high moose density...
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A moose population survey was conducted on the Yukon Flats National Wildlife Refuge in March 2013. Moose were counted in 101 of 421-5.3 mi2 units, of which 68 were stratified high moose density...
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A moose population survey was conducted on the Yukon Flats in November/December 2018. This was the first fall survey since 2015. Moose were counted in 97 of 421-5.3mi2 units, of which 63 were...
