gov.noaa.nmfs.inport:56775 eng UTF8 dataset Geodatabase West Coast Regional Office 501 West Ocean Blvd Long Beach CA 90802-4213 https://www.westcoast.fisheries.noaa.gov/ WWW:LINK-1.0-http--link Website Website for this organization information resourceProvider Wilson, Dan dan.wilson@noaa.gov pointOfContact 2025-09-25T15:19:15 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) North-central California Coast Salmonid Intrinsic Potential GIS Data 2017 creation 2017 publication NOAA/NMFS/EDM 56775 Unknown Not Applicable https://www.fisheries.noaa.gov/inport/item/56775 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Gavette, Charleen A 707-575-6017 707-578-3435 777 Sonoma Ave Santa Rosa CA 95404 charleen.gavette@noaa.gov Data created by NOAA Southwest Fisheries Science Center, Santa Cruz, CA Modified by NOAA Fisheries West Coast Region, Santa Rosa, CA originator https://archive.fisheries.noaa.gov/wcr/maps_data/maps_and_gis_data.html WWW:LINK-1.0-http--link Intrinsic Potential GIS Data - North-central California Coast Landing page for geodatabase, metadata files, technical memos, documentation for intrinsic potential. download mapDigital Not Applicable This geodataabase provides an estimate to the spatial distribution of potential historical habitat for California Coastal Chinook Salmon, Central California Coast Coho Salmon, Northern California Steelhead and Central California Coast Steelhead. Intrinsic potential measures the potential for development of favorable habitat characteristics as a function of the underlying geomorphic and hydrological attributes, as determined through a Digital Elevation Model (DEM) and mean annual precipitation grid. The model does not predict the actual distribution of "good'' habitat, but rather the potential for that habitat to occur, nor does the model predict abundance or productivity. Additionally, the model does not predict current conditions, but rather those patterns expected under pristine conditions as related through the input data. Thus, IP provides a tool for examining the historical distribution of habitat among and within watersheds, a proxy for population size and structure, and a useful template for examining the consequences of recent anthropogenic activity at landscape scales. Information on estimating the quality and extent of historical habitat is needed for ongoing efforts to conserve and eventually recover protected populations of Pacific salmonids. Because georeferenced spatial data on habitat and fish distribution at the regional scale are lacking, we adapted methods of the Coastal Landscape Analysis and Modeling Study (CLAMS) to implement a GIS approach in modeling the intrinsic potential (IP) of stream reaches to support juvenile steelhead, coho, and chinook salmon. The IP model uses geomorphic and hydrological attributes (expressed as the weighted geometric mean of indices for mean annual discharge, channel gradient, and channel constraint) to estimate the latent potential of stream reaches to provide favorable habitat characteristics for spawning and rearing. Indices for the model are derived from a 10 m DEM and PRISM precipitation data. Thus, the model predicts patterns of relative productive potential expected in the absence of human disturbances, as related through the input data. To apply the model appropriately in California, we investigated the species-specific weighting functions (proposed by CLAMS) for coho and steelhead using values available in the literature. Also, because patterns in precipitation and runoff vary across latitudes, we applied a linear regression model to gage station data to better estimate mean annual discharge from drainage area and precipitation. See Agrawal, A., R. Schick, E. P. Bjorkstedt, S. R.G., M. Goslin, B. C. Spence, T. Williams, and K. M. Burnett (2005). Predicting the potential for historical coho, Chinook and steelhead habitat in Northern California. NOAA Technical Memorandum NMFS-SWFSC-379. Spence, B. C., E. P. Bjorkstedt, J. C. Garza, J. J. Smith, D. G. Hankin, D. Fuller, W. E. Jones, R. Macedo, T. H. Williams, E. Mora (2008). A Framework for assessing the viability of threatened and endangered salmon and steelhead in the North-central California Coast Recovery Domain. NOAA Technical Memorandum NOAA-TM-NMFS-SWFSC-423. NOAA Southwest Fisheries Science Center, NOAA Fisheries West Coast Region Wilson, Dan dan.wilson@noaa.gov pointOfContact Wilson, Dan dan.wilson@noaa.gov custodian notPlanned This data set supersedes that contained within NOAA_NCCC_Salmonid_IP_SWFSC.gdb. An incorrect natural barrier has been removed from Anderson Creek, tributary to the South Fork Eel River. California Coastal Evolutionarily Significant Unit Central California Coast Distinct Population Segment Central California Coast Evolutionarily Significant Unit Chinook Coho Historical habitat Intrinsic Potential North-Central California Coast Recovery Domain Northern California Distinct Population Segment Oncorhynchus kisutch Oncorhynchus mykiss Oncorhynchus tshawytscha Salmon Steelhead theme California north-central California coast place DOC/NOAA/NMFS/WCRO > West Coast Regional Office, National Marine Fisheries 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 West Coast Region Geospatial Data project InPort otherRestrictions Cite As: West Coast Regional Office, [Date of Access]: North-central California Coast Salmonid Intrinsic Potential GIS Data [Data Date Range], https://www.fisheries.noaa.gov/inport/item/56775. 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: None otherRestrictions Use Constraints: No warranty, expressed or implied is made and no liability is assumed by NOAA Fisheries as to the positional or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. Government in the use of these files. otherRestrictions Distribution Liability: No warranty, expressed or implied is made and no liability is assumed by NOAA Fisheries as to the positional or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. Government in the use of these files. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 56775 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/wcro/dmp/pdf/56775.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans The data set was created with ESRI ArcGIS Desktop software Coastal tributaries from Redwood Creek in Humboldt County to Aptos Creek in Santa Cruz County. Additionally, tributaries to San Pablo and San Francisco Bays. -124.423876 -121.34395 36.943085 41.457008 2017 Not Applicable false eng false Other noaa_nccc_salmonid_ip_swfsc_jan2017.gdb.zip 2019-07-01 publication Zip Zip West Coast Regional Office 501 West Ocean Blvd Long Beach CA 90802-4213 https://www.westcoast.fisheries.noaa.gov/ WWW:LINK-1.0-http--link West Coast Regional Office Website Website listed for West Coast Regional Office information distributor https://archive.fisheries.noaa.gov/wcr/maps_data/maps_and_gis_data.html WWW:LINK-1.0-http--link noaa_nccc_salmonid_ip_swfsc_jan2017.gdb.zip Online Link for geodatabase, metadata files, technical memos, documentation for intrinsic potential. download dataset Precision Data was created based on 10 meter resolution digital elevation models (DEM) Calculating IP is a multi-step process that occurs both outside and inside a GIS. The first step creates a stream network from the Digital Elevation Model (DEM) and precipitation data that defines individual reaches and calculates values of gradient, valley floor width, and discharge for each. The second step creates suitability curves for these three variables based on life-history and habitat association of each species and life-stage. To construct a stream network, we implemented a model developed by Miller (2003 (Miller, D. 2003. Programs for DEM analysis)) that synthesizes grid-based data on topography derived from a 10 m resolution DEM and mean annual precipitation derived from the PRISM model (Daly et al., 1994). To run the model (Miller, 2003) (which is implemented outside of a GIS in a series of Fortran programs), we generated binary files of regional-scale elevation and precipitation grids. Beginning with these grids, we clipped the DEM and precipitation files to the watershed boundaries. The last input needed is a parameters file, and the only substantial change to the default inputs was to include regionally-specific equations relating precipitation to discharge. In the course of constructing the stream network, the model dynamically defines reaches on the order of 50-200 meters long, basing reach breaks on changes in gradient. In the resulting stream network, each reach is characterized by its gradient (averaged over the entire reach), valley width, and mean annual discharge (calculated at the downstream end of the reach).