AndreaBozzo/ceres-open-data-index huggingface dataset:
BackscatterC [7125]--Offshore of Point Reyes Map Map Area, California


This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Point Reyes map area, California. Backscatter data are provided as separate grids depending on mapping system or processing method. The raster data files are included in "BackscatterB_Swath_PtReyes.zip", which are accessible from http://pubs.usgs.gov/ds/781/OffshorePointReyes/data_catalog_PointReyes.html

The acoustic-backscatter map of the Offshore of Point Reyes map area, California, was generated from backscatter data collected by California State University, Monterey Bay (CSUMB), and by Fugro Pelagos. Mapping was completed between 2007 and 2010, using a combination of 200-kHz and 400-kHz Reson 7125, and 244-kHz Reson 8101 multibeam echosounders, as well as 468-kHz SEA SWATHPlus interferometric system. These mapping missions combined to collect backscatter data from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters.  Within the acoustic-backscatter imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and composition. Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover.  Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones). NOTE: the horizontal datum of the backscatter data (NAD83) differs from the horizontal datum of other layers in this DS (WGS84). These data are not intended for navigational purposes.


Tags: Benthic marine habitat, Drakes Bay, Drakes Estero, GIS, Marin County, Multibeam bathymetry, Offshore geology, Pacific Ocean, Point Reyes, Seafloor mapping, State of California, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
CENCAL1945_1976 - Vectorized Shoreline of Central California Derived from 1945-1976 Source Data

There are critical needs for a nationwide compilation of reliable shoreline data.  To meet these needs, the U.S. Geological Survey (USGS) has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data.  Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002.  Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies.  Details regarding source are provided in the 'Data Quality Information' section of this metadata report.  Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line. 

Tags: Baseline, Beach Erosion, Beach Nourishment, CMGP, California, Coastal Survey Map, Coastal and Marine Geology Program, ESRI polyline shapefile, Endpoint Rate, Historic Shoreline, LIDAR, Linear Regression Rate, Shoreline, Shoreline Change Rate, T-sheet, Tp-sheet, U.S. Geological Survey, USGS, United States, elevation, oceans, oceans and coastal, oceans and estuaries, westcoastoceans.org
Organization: Ocean Data Partners
Streams and Waterbodies of the United States


This map layer shows areal and linear water features of the United States,
Puerto Rico, and the U.S. Virgin Islands.  The original file was produced
by joining the individual State hydrography layers from the 1:2,000,000-
scale Digital Line Graph (DLG) data produced by the USGS.  This map layer
was formerly distributed as Hydrography Features of the United States.
This is a revised version of the January 2003 map layer.


Tags: Alabama, Alaska, Arizona, Arkansas, California, Canal, Colorado, Connecticut, Delaware, District of Columbia, Double-line stream, Florida, Georgia, Hawaii, Hydrography, Idaho, Illinois, Indiana, Inland waters, Intracoastal Waterway, Iowa, Kansas, Kentucky, Lake, Louisiana, Maine, Marsh, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Oceans, Ohio, Oklahoma, Oregon, Pennsylvania, Pond, Puerto Rico, Reservoir, Rhode Island, River, Shoreline, South Carolina, South Dakota, Stream, Swamp, Tennessee, Texas, U.S. Virgin Islands, United States, Utah, Vermont, Virgin Islands, Virginia, Washington, Water, West Virginia, Wisconsin, Wyoming, westcoastoceans.org
Organization: Ocean Data Partners
Depth to Transition--Bolinas to Pescadero, California


This part of DS 781 presents data for the depth-to-transition map of the Bolinas to Pescadero, California, region. The raster data file is included in "DepthToTransition_BolinastoPescadero.zip," which is accessible from http://pubs.usgs.gov/ds/781/BolinastoPescadero/data_catalog_SBolinastoPescadero.html.
This depth-to-transition map of the Santa Barbara Channel is published in Scientific Investigations Map 3306, "California State Waters Map Series--Offshore San Gregorio, California" (see sheet 9). In addition, this depth-to-transition map will be published in five future California State Waters Map Series Open-File Reports of the region (namely, the Offshore of San Francisco, Offshore of Pacifica, Offshore of Half Moon Bay, Offshore of San Gregorio, and Offshore of Pigeon Point map areas).
As part of the USGS's California State Waters Mapping Project, a 50-m grid of depth to the transgressive surface of the last glacial maximum was generated for the areas within the 3-nautical mile limit between Bolinas and Pescadero was generated from seismic-reflection data collected in 2010 (USGS activity (S-15-10-NC)  and 2007 (F-2-07-NC) supplemented with outcrop and geologic structure as mapped by Watt and others (Sheet 8, Sheet 10). The resulting grid covers an area of approximately 550 sq km. The depth to the transgressive surface of the Last Glacial Maximum ranges between 4 and 78 meters.

Tags: California, Pacific Ocean, Pescadero, San Gregorio, San Mateo County, USA, coastal geology, environment, geoscientificInformation, marine geology, oceans, sediment isopach, sediment thickness, seismic-reflection data, westcoastoceans.org
Organization: Ocean Data Partners
Ocean Sediment Thickness Contours

Ocean sediment thickness contours in 200 meter intervals for water depths ranging from 0 - 18,000 meters. These contours were derived from a global sediment thickness grid distributed by the National Geophysical Data Center (NGDC). The NGDC grid was compiled from various existing sediment thickness maps and drilling cores, and has a cell resolution of 5 arc seconds. Sediment thickness data is typically acquired through two methods. Seismic (or sub-bottom) profile technologies rely on powerful pulses of low-frequency sound which penetrate the substrate and return information about substrate thickness, character, and stratification. The data are collected along transect lines and require interpolation to create comprehensive maps. Sediment thickness is also determined by direct measurement through coring, which provides more detailed information but only at discrete sites. Coring data can also be interpolated to form area maps, and to help interpret the seismic data.

Tags: National, United States, contours, geoscientificInformation, marine sediments, marine spatial planning, ocean energy planning, oceans, seafloor sediment, sediment thickness, westcoastoceans.org
Organization: Ocean Data Partners
Backscatter B [8101]--Offshore Bolinas, California


This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Bolinas map area, California. Backscatter data are provided as separate grids depending on mapping system or processing method. The raster data files is included in "BackscatterB_8101_2007_OffshoreBolinas.zip", which are accessible from http://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html.

The acoustic-backscatter map of the Offshore of Bolinas map area, California, was generated from backscatter collected by California State University, Monterey Bay (CSUMB), by Fugro Pelagos, and by Moss Landing Marine Laboratory (MLML). Mapping was completed between 2004 and 2010, using a combination of 200-kHz and 400-kHz Reson 7125, and 244-kHz Reson 8101 multibeam echosounders, as well as 468-kHz SEA SWATHPlus and 250-kHz GeoSwath interferometric systems. Moss Landing Marine Laboratory mapped the nearshore region north of Bolinas in 2004 prior to the California Seafloor Mapping Program (CSMP). The nearshore region from south of Bolinas Lagoon to Stinson Beach was mapped by Fugro Pelagos in 2009 for a project outside of the CSMP and only bathymetry data were collected. Therefore, note that the shaded relief map coverage (see Bathymetry Hillshade--Offshore of Bolinas, California, DS 781) does not match the acoustic-backscatter map coverage (see Backscatter A-E--Offshore of Bolinas, California, DS 781). Within the acoustic-backscatter imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and sediment type.

Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover.  Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones). These data are not intended for navigational purposes.


Tags: Bolinas, Bolinas Lagoon, Marin County, Pacific Ocean, State of California, Stinson Beach, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
2014 NOAA Ortho-rectified Mean High Water Color Mosaic of The Channel Islands, California: Integrated Ocean and Coastal Mapping Product

This data set contains ortho-rectified mosaic tiles, created as a product from the NOAA Integrated Ocean and Coastal Mapping (IOCM) initiative.  The source imagery was acquired from 20140802 - 20140803 with an Applanix Digital Sensor System (DSS).  The original images were acquired at a higher resolution to support the final ortho-rectified mosaic.

Tags: California, aerial, coastal, digital orthophotography, imageryBaseMapsEarthCover, mosaic, orthophoto, photograph, rectified image, remotely-sensed-imageryphotography, shoreline, westcoastoceans.org
Organization: Ocean Data Partners
Backscatter A [CSUMB]--Offshore Coal Oil Point, California

This part of SIM 3302 presents data for part of the acoustic-backscatter map (see sheet 3, SIM 3302) of the Offshore of Coal Oil Point map area, California. The raster data file is included in "BackscatterA_CSUMB_OffshoreCoalOilPoint.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreCoalOilPoint/data_catalog_OffshoreCoalOilPoint.html.
The acoustic-backscatter map of Offshore Coal Oil Point, California was generated from backscatter data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), by the U.S. Geological Survey (USGS) and by Fugro Pelagos. These metadata describe the acoustic-backscatter data collected by CSUMB and reprocessed by the USGS. See "BackscatterB_USGS_OffshoreCoalOilPt_metadata.txt" metadata for a description of the acoustic-backscatter data collected by the USGS. The far eastern nearshore and shelf region of the Offshore Coal Oil Point map was mapped by CSUMB in the summer of 2007 using a 244 kHz Reson 8101 multibeam echosounder. Within the final imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and sediment type.  Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover.  Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones).

Tags: Backscatter, Bathymetry, CSMP, Coal Oil Point, Geology, Goleta, Intensity, Isla Vista, Marine Geology, Multibeam, Ocean Floor Topography, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara Channel, Santa Barbara County, State of California, U.S. Geological Survey, USGS, geoscientificinformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
GHRSST Level 2P Global Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite for 2018-12-03 (NCEI Accession 0185722)

The Advanced Microwave Scanning Radiometer 2 (AMSR2) was launched on 18 May 2012, onboard the Global Change Observation Mission - Water (GCOM-W) satellite developed by the Japan Aerospace Exploration Agency (JAXA). The GCOM-W mission aims to establish the global and long-term observation system to collect data, which is needed to understand mechanisms of climate and water cycle variations, and demonstrate its utilization. AMSR2 onboard the first generation of the GCOM-W satellite will continue Aqua/AMSR-E observations of water vapor, cloud liquid water, precipitation, SST, sea surface wind speed, sea ice concentration, snow depth, and soil moisture. AMSR2 is a remote sensing instrument for measuring weak microwave emission from the surface and the atmosphere of the Earth. From about 700 km above the Earth, AMSR2 will provide us highly accurate measurements of the intensity of microwave emission and scattering. The antenna of AMSR2 rotates once per 1.5 seconds and obtains data over a 1450 km swath. This conical scan mechanism enables AMSR2 to acquire a set of daytime and nighttime data with more than 99% coverage of the Earth every 2 days. Remote Sensing Systems (RSS, or REMSS), providers of these SST data for the Group for High Resolution Sea Surface Temperature (GHRSST) Project, performs a detailed processing of AMSR2 instrument data in two stages. The first stage produces a near-real-time (NRT) product (identified by "_rt_" within the file name) which is made as available as soon as possible. This is generally within 3 hours of when the data are recorded. Although suitable for many timely uses the NRT products are not intended to be archive quality. "Final" data (currently identified by "v7.2" within the file name) are processed when RSS receives the atmospheric model National Center for Environmental Prediction (NCEP) Final Analysis (FNL) Operational Global Analysis. The NCEP wind directions are particularly useful for retrieving more accurate SSTs and wind speeds. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.

Tags: earth-science--atmosphere--atmospheric-winds--surface-winds--wind-speed, earth-science--atmosphere--precipitation--precipitation-rate, earth-science--oceans--ocean-temperature--sea-surface-temperature, geographic-region--global-ocean, nodc.noaa.gov, oceanography
Organization: Ocean Data Partners
Backscatter A [8101]--Offshore of Tomales Point, California


This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Tomales Point map area, California. Backscatter data are provided as separate grids depending on mapping system or processing method. The raster data file is included in "BackscatterA_8101_ OffshoreTomalesPoint.zip", which is accessible from http://pubs.usgs.gov/ds/781/OffshoreTomalesPoint/data_catalog_OffshoreTomalesPoint.html.

The acoustic-backscatter map of the Offshore of Tomales Point map area, California, was generated from backscatter data collected by California State University, Monterey Bay (CSUMB), by Fugro Pelagos, and by the U.S. Geological Survey. Mapping was completed between 2004 and 2010, using a combination of 200-kHz and 400-kHz Reson 7125, and 244-kHz Reson 8101 multibeam echosounders, as well as 234-kHz and 468-kHz SEA SWATHPlus phase-differencing sidescan sonars. These mapping missions combined to collect backscatter data from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters.  Within the acoustic-backscatter imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and composition. Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover.  Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones). These data are not intended for navigational purposes.


Tags: Marin County, Pacific Ocean, State of California, Tomales Bay, Tomales Point, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
NORCAL2002 - Vectorized Shoreline of Northern California Derived from 2002 Lidar Source Data

There are critical needs for a nationwide compilation of reliable shoreline data.  To meet these needs, the U.S. Geological Survey (USGS) has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data.  Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002.  Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies.  Details regarding source are provided in the 'Data Quality Information' section of this metadata report.  Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line. 

Tags: Baseline, Beach Erosion, Beach Nourishment, CMGP, California, Coastal Survey Map, Coastal and Marine Geology Program, ESRI polyline shapefile, Endpoint Rate, Historic Shoreline, LIDAR, Linear Regression Rate, Shoreline, Shoreline Change Rate, T-sheet, Tp-sheet, U.S. Geological Survey, USGS, United States, elevation, oceans, oceans and coastal, oceans and estuaries, westcoastoceans.org
Organization: Ocean Data Partners
SMIG1M.TIF - Sidescan sonar image of South San Miguel Island (UTM 10N, NAD83)

The sidescan sonar image of the nearshore seafloor (0 to 100 m water depths) of the Big Sycamore reserve area was mosaicked from data collected in 1998.  A Klein 2000 sidescan system was used for geophysical surveying. A Triton Elics Isis brand side-scan data recording system was used on the cruise.  The 1998 survey was navigated with a Leica Differential Global Positioning System (DGPS) which provided a ship position with accuracy of 1-5 m in DGPS mode. At times during the cruise differential signal was interrupted. In non-differential mode, the receiver provided a position with 30-50 m accuracy. A KVH Industries Inc. azimuth digital gyro-compass provided ship headings with 0.5 degree accuracy. Navigation data were recorded using Yo-Nav version 1.19 (Gann, 1992). The sidescan fish was towed approximately 30 m above the seafloor. The distance of the fish behind the ship was not known during this survey and must be estimated when the data are processed in order to produce the sidescan image mosaics.  The resolution of the processed data mosaics is 0.2 m.  The data are presented here at a resolution of 1 m.  This is one of a collection of digital files of a geographic information system of spatially referenced data related to the USGS Coastal and Marine Geology Program Nearshore Benthic Habitat Mapping Project.  See <http://walrus.wr.usgs.gov/nearshorehab> for more information.

Tags: Big Sycamore Reserve, CA, CMGP, California, Channel Islands, Channel Islands National Marine Sanctuary, Coastal Geology, Coastal and Marine Geology Program, GeoTIFF, Isis, Klein, MIPS, Marine Geology, North Pacific Ocean, Northern Pacific Ocean, Point Mugu, San Miguel Island, Santa Barbara, Southern California, U.S. Geological Survey, USA, USGS, United States, Ventura, Western Coastal and Marine Geology, field activity identifier B-1-99-SC, geoscientificInformation, grey scale image, habitat mapping, habitats, imageryBaseMapsEarthCover, nearshore benthic habitat, oceans and coastal, oceans and estuaries, remote-sensing image, rv-ballena, seafloor mapping, sidescan sonar, west coast, westcoastoceans.org
Organization: Ocean Data Partners
CENCAL1929_1942 - Vectorized Shoreline of Central Califonia Derived from 1929-1942 Source Data

There are critical needs for a nationwide compilation of reliable shoreline data.  To meet these needs, the U.S. Geological Survey (USGS) has produced a comprehensive database of digital vector shorelines by compiling shoreline positions from pre-existing historical shoreline databases and by generating historical and modern shoreline data.  Shorelines are compiled by state and generally correspond to one of four time periods: 1800s, 1920s-1930s, 1970s, and 1998-2002.  Each shoreline may represent a compilation of data from one or more sources for one or more dates provided by one or more agencies.  Details regarding source are provided in the 'Data Quality Information' section of this metadata report.  Shoreline vectors derived from historic sources (first three time periods) represent the high water line at the time of the survey, whereas modern shorelines (final time period) represent the mean high water line. 

Tags: Baseline, Beach Erosion, Beach Nourishment, CMGP, California, Coastal Survey Map, Coastal and Marine Geology Program, ESRI polyline shapefile, Endpoint Rate, Historic Shoreline, LIDAR, Linear Regression Rate, Shoreline, Shoreline Change Rate, T-sheet, Tp-sheet, U.S. Geological Survey, USGS, United States, elevation, oceans, oceans and coastal, oceans and estuaries, westcoastoceans.org
Organization: Ocean Data Partners