AndreaBozzo/ceres-open-data-index huggingface dataset:
Spatial Extent of Commercial Mid-Water Trawling off the U.S. West Coast (1 Jan 2002 – 11 Jun 2006)

This data layer depicts the spatial extent of commercial mid-water trawling off the U.S. West Coast from 1 Jan 2002 – 11 Jun 2006. Records of mid-water trawl tows were compiled from two data sources: 1) Logbook data originating from the state logbook programs and uploaded to the Pacific Fisheries Information Network (PacFIN) regional database, and 2) observer records from the At-Sea Hake Observer Program (A-SHOP). These two data sources represent the shoreside and at-sea hake fleets, respectively. Included in the A-SHOP data are observations of tribal fishing in the at-sea hake sector. The extent polygon was created using an algorithm known as a convex hull. Convex hulls are a type of minimum bounding polygon that forms an “envelope”around a group of points, or in this case, straight lines representing tows. The algorithm can be applied at various spatial scales. In this case, towlines were grouped into 0.5°latitude x 0.5°longitude blocks. The algorithm was then applied to each set of towlines within each block. Finally, all convex hull polygons were merged together. The resulting polygon encloses all towlines within the time period. The best way to interpret this data product is that no fishing occurred outside of the extent polygon within the time period. In order to ensure confidentiality of vessel owners, each extent polygon encompasses towlines from at least three vessels. The result is an overestimation of the areas of fishing. In fact, there are many areas within the extent polygon where no fishing occurred; hence this product is only intended to represent the gross “footprint” of fishing. This spatial summary of mid-water trawl effort was developed from data represented only by start and end points of tows. It is recognized that tows rarely follow straight-line paths; however, this was the best information available on the spatial distribution of effort for vessels using mid-water trawl gears. Because of their patchy spatial distributions, towlines for mid-water trawls occurring south of Cape Mendocino were removed from the analysis at the request of the state of California.

Tags: California Current Large Marine Ecosystem, Pacific Ocean, U.S. West Coast, demersal fish, essential fish habitat, fishing effort, groundfish, oceans, pelagic trawl, westcoastoceans.org
Organization: Ocean Data Partners
OCSLA Sec. 8(g) Revenue Zone Boundary - Pacific Region - West Coast NAD83


This data set contains the Limit of  8(g) Zone  line in ESRI
Arc/Info export and Arc/View shape file formats for the BOEM Pacific
Region.  The 8(g) Zone lies between the Submerged Lands Act (SLA)
boundary line and a line projected 3 nautical miles seaward of the SLA
boundary line.  Within this zone revenues are shared with the coastal
state(s).
Because GIS projection and topology functions can change or
generalize coordinates, these GIS files are NOT an OFFICIAL record for
the exact Submerged Lands Act Boundary.


Tags: Cadastre, Lease blocks, NGDA, National Geospatial Data Asset, OCS blocks, Offshore, Oil and gas, Pacific Ocean, USA, Water Oceans and Coasts Theme, bureau-of-ocean-energy-management-boem, california-ca, exclusive-economic-zone-eez, limit-of--8g-zone, oregon-or, outer-continental-shelf-ocs, state-seaward-boundary-ssb, submerged-lands-act-boundary-sla, supplemental-official-ocs-block-diagram-sobd, washington-wa, westcoastoceans.org
Organization: Ocean Data Partners
BackscatterB [Swath]--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
BSYC1M.TIF - Big Sycamore Reserve sidescan sonar backscatter image in the Nearshore Benthic Habitat Mapping Project S. California map series. (UTM 11N, 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, 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 Dume, Point Mugu, Santa Barbara, Southern California, U.S. Geological Survey, USA, USGS, United States, Ventura, Western Coastal and Marine Geology, field activity identifier B-1-98-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
NANPHAB -- Benthic Habitat polygons for North Anacapa Passage (UTM 10N, NAD83)

Benthic habitat polygon coverages have been created for marine reserve locations surrounding the Santa Barbara Basin.  Diver, ROV and submersible video transects, bathymetry data, sedimentary samples, and sonar mapping, have been integrated to describe the geological, biological, and oceanographic aspects of habitat.  Anacapa Reserve, is part of the Marine Ecological Reserves Research Program (MERRP).  The U.S. Geological Survey (USGS), in a cooperative project with Sea Grant-MERRP and investigators at National Marine Fisheries Service (NMFS), the Channel Islands National Marine Sanctuary (CINMS), and National Park Service (NPS) has collected sidescan sonar and video data to produce a polygon coverage. The habitat polygons have attributes for megahabitat, bottom induration, macrohabitat (where macrohabitat observations are available), polygon area, polygon perimeter, and water depth.  The habitat GIS shows rocky habitat suitable for rockfish (Sebastes sp.), abalone (Haliotis sp.), and other threatened benthic species from the shoreline out to the 100-m depth limit of the survey.

Tags: CA, CMGP, California, Channel Islands, Channel Islands National Marine Sanctuary, Coastal Geology, Coastal and Marine Geology Program, Marine Geology, North Anacapa Passage, North Pacific Ocean, Northern Pacific Ocean, Santa Barbara, Santa Cruz Islands, Southern California, U.S. Geological Survey, USA, USGS, United States, Ventura, Western Coastal and Marine Geology, benthic habitat, biota, fisheries, geology, geoscientificinformation, habitat, oceans, seafloor, west coast, westcoastoceans.org
Organization: Ocean Data Partners
Oil and Gas Resource Plays

A group of known and/or postulated sub-seafloor pools (hydrocarbon accumulations) that share common geologic, geographic, and temporal properties, such as history of hydrocarbon generation, migration, reservoir development, and entrapment. Geologic classifications of each play and its potential are described in the associated reports for each region. The analysis was based on seismic surveys analyzed by BOEM geologists.

Tags: Alaska, Atlantic, Beaufort, Chukchi, Cook Inlet, Gulf, National, Pacific, United States, ellesmerian, endicott, environment, foldbelt, lisburne, marine cadastre, marine spatial planning, oceans, renewable energy, rift, shelf, slope, stratigraphic, topset, turbidite, westcoastoceans.org
Organization: Ocean Data Partners
Bathymetry Hillshade--Offshore Half Moon Bay, California


This part of DS 781 presents data for the bathymetry and shaded-relief maps of the Offshore Half Moon Bay map area, California (raster data file is included in "BathymetryHS_OffshoreHalfMoonBay.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreHalfMoonBay/data_catalog_OffshoreHalfMoonBay.html.
The bathymetry and shaded-relief maps of Offshore Half Moon Bay, California, were generated from bathymetry data collected by Fugro Pelagos, and by California State University, Monterey Bay (CSUMB). Mapping was completed in 2006 and 2007, using a combination of 400-kHz Reson 7125 and 244-kHz Reson 8101 multibeam echosounders. These mapping missions combined to collect bathymetry from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters.

Tags: Bathymetry, CSMP, Geology, Half Moon Bay, Marine Geology, Multibeam, Ocean Floor Topography, Pacific Coastal and Marine Science Center, State of California, U.S. Geological Survey, USGS, Water Depth, geoscientificInformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
Backscatter C [Swath]--Offshore of Bodega Head, California


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

The acoustic-backscatter map of the Offshore of Bodega Head 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 (sheet 3) from about the 10-m isobath to beyond the 3-nautical-mile limit of California 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: Backscatter, Bathymetry, Bodega Bay, CMGP, Ecosystem, Fisheries, Geology, Intensity, Multibeam, Ocean Floor Topography, Pacific Coastal and Marine Science Center, Pacific Ocean, Salmon Creek, Seafloor Character, Sonoma County, State of California, U.S. Geological Survey, USGS, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
Habitat--Offshore of Santa Barbara, California

This part of SIM 3281 presents data for the habitat map of the seafloor (see sheet 7, SIM 3281) of the Offshore of Santa Barbara map area, California. The vector data file is included in "Habitat_OffshoreSantaBarbara.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreSantaBarbara/data_catalog_OffshoreSantaBarbara.html.
Using multibeam echosounder (MBES) bathymetry and backscatter data, potential marine benthic habitat maps were constructed. The habitats were based on substrate types and documented or "ground truthed" using underwater video images and seafloor samples obtained by the USGS. These maps display various habitat types that range from flat, soft, unconsolidated sediment-covered seafloor to hard, deformed (folded) or highly rugose and differentially eroded bedrock exposures. Rugged, high-relief, rocky outcrops that have been eroded to form ledges and small caves are ideal habitat for rockfish (Sebastes spp.) and other bottom fish such as lingcod (Ophiodon elongatus). Habitat map is presented in a map format generated in a GIS (ArcMap), and both digital and hard-copy versions will be produced.

Tags: Benthic marine habitat, California, GIS, Multibeam bathymetry, Offshore geology, Pacific Ocean, Santa Barbara, Santa Barbara Channel, Santa Barbara County, Santa Barbara Harbor, Seafloor mapping, environment, geo-scientific information, imagery Base Maps Earth Cover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
Tropical Cyclone Exposure for U.S. waters within the Eastern Pacific Ocean basin, 1900-2013

These data represent modeled, historical exposure of U.S. offshore and coastal waters to tropical cyclone activity within the Eastern Pacific Ocean basin.  BOEM Outer Continental Shelf Lease Blocks and equivalent areas for coastal waters were used to construct the grid by which exposure was quantified.  Exposure was quantified using intersecting storm tracks, overlapping wind intensity areas, and mathematical return intervals.  Symbology is based on the modeled occurrence of tropical storm force (34-knot) or greater winds per lease block. Wind climatology was based on Extended Best Track re-analysis data, using overwater wind data only.  Due to the exclusion of inland wind values used within the model outputs, the interpretation of wind exposure metrics within coastal waters should be interpreted carefully.  Storm tracks were provided by International Best Track Archive for Climate Stewardship (IBTrACS) data for the period 1900-2013.  Data represent past climatology only and do not suggest predicted future impacts or exposure.

Tags: Alaska, Hawaii, Pacific, United States, West Coast, climatologyMeteorologyAtmosphere, coastal energy planning, environment, extratropical storm, hurricane, marine, ocean energy planning, oceans, offshore energy planning, outer continental shelf lease blocks, pacific, protractions, tropical cyclone, tropical storm, westcoastoceans.org
Organization: Ocean Data Partners
Bathymetry Hillshade--Offshore of Santa Barbara, California

This part of SIM 3281 presents data for the bathymetry and shaded-relief maps (see sheets 1, 2, SIM 3281) of the Offshore of Santa Barbara map area, California. The raster data file for the bathymetry map is included in "Bathymetry_OffshoreSantaBarbara.zip." The raster data file for the shaded-relief map is included in "BathymetryHS_OffshoreSantaBarbara.zip." Both are accessible from http://pubs.usgs.gov/ds/781/OffshoreSantaBarbara/data_catalog_OffshoreSantaBarbara.html.
The bathymetry and shaded-relief maps of the Offshore of Santa Barbara map area, California, were generated from bathymetry data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), by the U.S. Geological Survey (USGS), and by Fugro Pelagos for the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry Technical Center of Expertise. Most of the offshore area was mapped by CSUMB in the summer of 2007, using a 244-kHz Reson 8101 multibeam echosounder. Smaller areas in the far-east nearshore, as well as further offshore to the west and in the southeast outer shelf area, were mapped by the USGS in 2005 and 2006, using a combination of 468-kHz (2005) and 117-kHz (2006) SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonars. The nearshore bathymetry and coastal topography were mapped for USACE by Fugro Pelagos in 2009, using the SHOALS-1000T bathymetric-lidar and Leica ALS60 topographic-lidar systems. All these mapping missions combined to collect bathymetry from the 0-m isobath to beyond the 3-nautical-mile limit of California's State Waters. NOTE: The horizontal datum of this bathymetry data (NAD83) differs from the horizontal datum of other layers in this SIM (WGS84). Some bathymetry grids within this map area were projected horizontally from WGS84 to NAD83 using ESRI tools to be more consistent with the vertical reference of the North American Vertical Datum of 1988 (NAVD88).

Tags: Bathymetry, CSMP, California, Geology, Marine Geology, Multibeam, Ocean Floor Topography, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara, Santa Barbara Channel, U.S. Geological Survey, USGS, Water Depth, geoscientificinformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners
Backscatter A [CSUMB]--Offshore of Santa Barbara, California

This part of SIM 3281 presents data for part of the acoustic-backscatter map (see sheet 3, SIM 3281) of the Offshore of Santa Barbara map area, California. The raster data file is included in "BackscatterA_CSUMB_OffshoreSantaBarbara.zip," which is accessible from http://pubs.usgs.gov/ds/781/OffshoreSantaBarbara/data_catalog_OffshoreSantaBarbara.html.
The acoustic-backscatter map of the Offshore of Santa Barbara map area, California, was generated from backscatter data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB) and by the U.S. Geological Survey (USGS). These metadata describe the acoustic-backscatter data collected by CSUMB and reprocessed by the USGS. See "BackscatterB_USGS_OffshoreSantaBarbara_metadata.txt" metadata for a description of the acoustic-backscatter data collected by the USGS. Most of the offshore area was mapped by CSUMB in the summer of 2007, using a 244-kHz Reson 8101 multibeam echosounder. 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).

Tags: Backscatter, Bathymetry, CSMP, California, Geology, Intensity, Marine Geology, Multibeam, Ocean Floor Topography, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara, Santa Barbara Channel, U.S. Geological Survey, USGS, geoscientificinformation, imageryBaseMapsEarthCover, oceans, oceans--bathymetryseafloortopography--bathymetry, oceans--bathymetryseafloortopography--seafloor-topography, westcoastoceans.org
Organization: Ocean Data Partners