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This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2014 (USGS Field Activity Number 2014-631-FA). Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9 degree beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
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This data release is comprised of tidal marsh biomass data and spatial predictions of peak biomass and Julian day of peak biomass using data from the Landsat archive. Aboveground biomass dry weight of mixed-species plots (25x50 cm) at a tidal marsh in Willapa Bay, Washington were used to establish a relationship between biomass and tasseled cap greeness (TCG). The julian day of annual peak greenness and the value of annual peak greenness for 32 years at Bandon National Wildlife Refuge (NWR), Grays Harbor NWR, and Nisqually NWR was calculated by fitting a Gaussian function to the TCG values for a given year. The value of each 30 meter pixel is the Julian day of maximum predicted TCG or the maximum predicted TCG....
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
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This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2017 (USGS Field Activity Number 2017-666-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area...
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The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...
thumbnail
The National Hydrography Dataset (NHD) is a feature-based database that interconnects and uniquely identifies the stream segments or reaches that make up the nation's surface water drainage system. NHD data was originally developed at 1:100,000-scale and exists at that scale for the whole country. This high-resolution NHD, generally developed at 1:24,000/1:12,000 scale, adds detail to the original 1:100,000-scale NHD. (Data for Alaska, Puerto Rico and the Virgin Islands was developed at high-resolution, not 1:100,000 scale.) Local resolution NHD is being developed where partners and data exist. The NHD contains reach codes for networked features, flow direction, names, and centerline representations for areal water...
Tags: Administrative watershed units, Administrative watershed units, Area of Complex Channels, Area to be submerged, Basin, All tags...


map background search result map search result map USGS Topo Map Vector Data (Vector) 36428 Prices Peak, Washington 20170614 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44195 Taholah, Washington 20170531 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5629 Brooklyn, Washington 20170613 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69592 Cedarville, Washington 20170603 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 18591 Grisdale, Washington 20170531 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32704 O'Took Prairie, Washington 20170604 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39491 Salmon River West, Washington 20170601 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24994 Larsen Creek, Washington 20170613 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29932 Montesano, Washington 20170606 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31780 New London, Washington 20170605 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69120 Aberdeen Gardens, Washington 20170606 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 21471 Humptulips, Washington 20170607 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 1711 (published 20190704) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17100102 (published 20190705) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110017 (published 20190719) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110019 (published 20190719) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110019 (published 20190719) Data for climate-related variation in plant peak biomass and growth phenology across Pacific Northwest tidal marshes Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2014 Beach topography of the Columbia River littoral cell, Washington and Oregon, 2017 USGS Topo Map Vector Data (Vector) 36428 Prices Peak, Washington 20170614 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 44195 Taholah, Washington 20170531 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 5629 Brooklyn, Washington 20170613 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69592 Cedarville, Washington 20170603 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 18591 Grisdale, Washington 20170531 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 32704 O'Took Prairie, Washington 20170604 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 39491 Salmon River West, Washington 20170601 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24994 Larsen Creek, Washington 20170613 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 29932 Montesano, Washington 20170606 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 31780 New London, Washington 20170605 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 69120 Aberdeen Gardens, Washington 20170606 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 21471 Humptulips, Washington 20170607 for 7.5 x 7.5 minute FileGDB 10.1 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110017 (published 20190719) Beach topography of the Columbia River littoral cell, Washington and Oregon, 2017 Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2014 USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17100102 (published 20190705) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110019 (published 20190719) USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 8 - 17110019 (published 20190719) Data for climate-related variation in plant peak biomass and growth phenology across Pacific Northwest tidal marshes USGS National Hydrography Dataset Best Resolution (NHD) for Hydrologic Unit (HU) 4 - 1711 (published 20190704)