• Organization: U.S. Environmental Protection Agency
• Updated: 2016-06-13T00:00:00.000+00:00

This EnviroAtlas dataset shows the percentages of stream and water body shoreline lengths within 30 meters of impervious cover by 12-digit Hydrologic Unit (HUC) subwatershed in the contiguous U.S....

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Baffin Bay was derived from two surveys containing 14,924 soundings. No surveys were omitted and no points were deleted. The average separation between soundings was 129 meters....

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Umpqua River was derived from three surveys containing 10,216 soundings. No surveys were omitted. The average separation between soundings was 48 meters. All the surveys dated...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Atchafalaya Bay was derived from eleven surveys containing 127,192 soundings. No surveys were omitted. The average separation between soundings was 130 meters. The surveys dated...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Yaquina Bay was derived from two surveys containing 9,279 soundings. Two older, less accurate, overlapping surveys were removed before tinning. The average separation between...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Sheepscot Bay was derived from nineteen surveys containing 173,929 soundings. One survey was omitted before tinning the data. The average separation between the soundings was 25...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Mobile Bay was derived from twenty-three surveys containing 173,661 soundings. Older, overlapping, less accurate surveys were deleted. The average separation between surveys was 79...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Terrebonne/Timbalier Bays was derived from twelve surveys containing 94,975 soundings. No surveys were omitted. The average separation between soundings was 115 meters. The surveys...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Calcasieu Lake was derived from five surveys containing 27,199 soundings. No surveys were omitted. The average separation between soundings was 98 meters. The surveys dated from...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Santee River was derived from two surveys containing 11,079 soundings. No surveys were omitted. The average separation between soundings was 40 meters. Both surveys dated from...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Barnegat Bay was derived from six surveys containing 74,448 soundings. No surveys were deleted. The average separation between soundings was 49 meters. The six surveys dated from...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Albemarle Sound was derived from twenty-five surveys containing 187,065 soundings. Two older, less accurate, overlapping surveys were omitted before tinning. The average separation...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Altamaha River was derived from three surveys containing 16,511 soundings. One less accurate, overlapping survey was deleted before tinning the data. The average separation...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Muscongus Bay was derived from nine surveys containing 109,649 soundings. No surveys were omitted. The average separation between soundings was 43 meters. Of the nine surveys used,...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for San Antonio Bay was derived from five surveys containing 32,829 soundings. Two older, overlapping, less accurate surveys were deleted before tinning. The average separation between...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Hudson River was derived from twenty surveys containing 120,771 soundings. No surveys were omitted. The average separation between soundings was 51 meters. The surveys dated...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for Massachusetts Bay was derived from thirty-eight surveys containing 297,628 soundings. Two older, less accurate, overlapping surveys were omitted before tinning. The average...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Cape Fear River was derived from seven surveys containing 34,390 soundings. No surveys were omitted. The average separation between soundings was 54 meters. One survey in the...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for the Savannah River was derived from nine surveys containing 34,353 soundings. Two older, overlapping, less accurate surveys were omitted before tinning the data. The average...

• none

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1998-06-06T00:00:00.000+00:00

Bathymetry for St. Helena Sound was derived from nineteen surveys containing 83,246 soundings. No surveys were omitted. The average separation between soundings was 49 meters. Sixteen of the...

• none