gov.noaa.nmfs.inport:39255 eng UTF8 dataset National Centers for Coastal Ocean Science resourceProvider NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact 2025-05-15T19:16:12 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) complex 493 Five-minute grid shapefile with marine bird density data off central California, CDAS data (1980-2001) birdsummary 2002 publication NOAA/NMFS/EDM 39255 https://www.fisheries.noaa.gov/inport/item/39255 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Gill, Tracy tracy.gill@noaa.gov principalInvestigator https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip WWW:LINK-1.0-http--link Citation URL Online Resource download https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/ WWW:LINK-1.0-http--link Citation URL Online Resource download A shapefile of five minute grids that contains marine bird density data at-sea from the CDAS Central CA data set (1980-2001). It is a shapefile representing 5 minute x 5 minute latitude x longitude cells that house the densities (birds/sq.km.) of 40 species of marine birds during the Upwelling, Oceanic and Davidson Current Seasons. The number of marine birds seen in a cell was divided by the area sampled in the cell to estimate density. If a cell was surveyed more than once, densities were averaged and weighted according to effort. Cells that were surveyed but in which no birds were observed have densities of zero. This shapefile was used to map bird density maps for NOAA from the CDAS data set. This data set was compiled by R. G. Ford Consulting Company for the National Oceanic and Atmospheric Administration's National Ocean Service: National Centers for Coastal Ocean Science and National Marine Sanctuary Program. The following researchers contributed ship-based survey data for use in production of this shapefile: David G. Ainley, Ph.D., H. T. Harvey and Associates; Carol Keiper, Ph.D., Oikonos; Lisa T. Ballance, Ph. D., Ecosystem Studies Program, Southwest Fisheries Science Center, National Marine Fisheries Service. Aerial survey data used for production of this shapefile are available on CD-ROM, Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon, and California (1975-1997). See Source Information for additional citations of contributors to this data set. completed NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov pointOfContact NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov custodian notPlanned https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/pdfs/bird_DENS_SEAS.pdf At-sea, seasonal density maps of selected marine birds off central CA, 1980-2001, from CDAS Cent Ca data set (1980-2001). PDF Environmental Monitoring theme NOS Data Explorer Topic Category avifauna bird density at sea density marine bird marine bird density marine bird distribution seabird seabird density theme Davidson Current Season all seasons anytime ocean season oceanic season season seasonal upwelling season year-round temporal Coastal ocean off central CA NE Pacific central California coast national marine sanctuaries ocean place DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Central_cal_assess project InPort otherRestrictions Cite As: National Centers for Coastal Ocean Science, [Date of Access]: Five-minute grid shapefile with marine bird density data off central California, CDAS data (1980-2001) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/39255. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: This data set is in the public domain, and the recipient may not assert any proprietary rights thereto nor represent it to anyone as other than a data set compiled by R. G. Ford Consulting Company for the National Oceanic and Atmospheric Administration's National Ocean Service. otherRestrictions Use Constraints: This data set is provided "as-is" without warranty of any kind. The user assumes all responsibility for the accuracy and suitability of this data set for a particular purpose. otherRestrictions Distribution Liability: These data were prepared for an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 39255 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/nccos/dmp/pdf/39255.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference vector eng; US biota environment oceans Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324 -128.833328 -120.583336 34.833333 39.083332 | Currentness: Ground Condition 1980 2001 The CDAS data set (1980-2001) was developed and is maintained by R.G. Ford Consulting Co. It is a combination/ synthesis of at-sea data sets off the U.S. west coast of CA,OR and WA. This shapefile was created as part of a biogeographic assessment of marine resources off northern and central California, for the National Oceanic and Atmospheric Administration's Ocean Service. For additional information, see the bird chapter of the Phase 2 report at http://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/birds/. For additional information on the aerial survey data, see CD-ROM, Marine Mammal and Seabird Computer Database Analysis System, Washington, Oregon, and California (1975-1997). For additional ship-based survey data information, contact the following contributing researchers: SF-DODS Cruises (1996-2000) EPOCS Cruises (1984-1994) David G. Ainley, Ph.D. H.T. Harvey and Associates 3150 Almaden Expressway, Suite 145 San Jose, California 95118 dainley@sbcglobal.net Midwater Trawls for Juvenile Rockfish(1985-2001) David G. Ainley, Ph.D. (see above) and Carol Keiper, Ph.D. Oikonos P.O. Box 979 Bolinas, Calfornia 94924 carol@oikonos.org ORCAWALE Cruise (2001) Lisa T. Ballance, Ph.D. Ecosystem Studies Program Southwest Fisheries Science Center 8604 La Jolla Shores Drive La Jolla, California 92037 lisa.ballance@noaa.gov false eng false For explanations of the attributes, please see the excel file on the Data DVD called DefinitionsofCDASBirdAcronyms.xls Shapefile NCCOS Scientific Data Coordinator NCCOS.data@noaa.gov distributor 0.655 https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip WWW:LINK-1.0-http--link https://ccma.nos.noaa.gov/ecosystems/sanctuaries/california/html/data/shapes/bird_shapes.zip Downloadable Data download dataset Accuracy The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute latitude x 5 minute longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort. Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001. All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced. Completeness Report All shapefile cells have attribute information. Conceptual Consistency All shapefile attributes were checked for consistency of appropriate range values. The at-sea density data, from which this shapefile was created, are the result of a synthesis of data from eight shipboard and aerial survey programs conducted in the study area in the years 1980-2001. Observation and trackline data from these studies were converted to a common format. All aerial data were continuous; ship-based data were converted separately into a continuous transect to the extent possible. From the digitized survey data, the distributions of effort and of marine bird species were mapped into 5 minute x 5 minute latitude x longitude cells using CDAS, a custom geographic information system for analyzing marine bird and mammal surveys (MMS-CDAS 2001). The length and width of the survey trackline in a given cell (estimated trackline width varied by platform, depending on speed and height above water) were used to estimate the area sampled. The number of marine birds seen in a cell was then divided by the area sampled in the cell to estimate density. If a cell was censused more than once, densities were averaged, with adjustment made for effort. Although the at-sea data span the years 1980-2001, data are not available for all seasons in all years. For the Upwelling Season, data are from 1980-1982 and 1985-2001. For the Oceanic Season, data are from 1980-1982, 1991 and 1994-2001. For the Davidson Current Season, data are from 1980-1986 and 1991-2001. All data sources were thoroughly checked for accuracy, consistency and completeness. Accuracy analyses were not applicable to this data set and therefore not produced. 2001-01-01T00:00:00 Source Contribution: CDAS Central California data set (1980-2001), 2003. A GIS data set of marine birds at sea off the coast of central California; the CDAS data set was developed and is maintained by Glenn Ford and Janet Casey or R.G. Ford Consulting Co., Portland, Oregon. | Type of Source Media: online CDAS Central Calfornia Data Set 2001-01-01 publication R.G. Ford Consulting Co. 1980 2001