{"action":"create","ckan_id":null,"date_created":"Mon, 02 Mar 2026 23:52:28 GMT","date_finished":null,"harvest_job_id":"57488dae-58a5-4659-896b-3e4a105d1b84","harvest_source_id":"4c62556f-0fa3-402d-90f6-6a46cd80a117","id":"0c7b4ec4-507e-4970-a109-ed1ff07b54eb","identifier":"https://hazards.fema.gov/filedownload/metadata/R10/637232-DevHydrologicData.xml","parent_identifier":null,"source_hash":"abc000cc7b9c64c68a91c1efd6726a5d5222f3c60dcc65710e575d5546dcb6a4","source_raw":"\r\n\r\n \r\n \r\n \r\n STARR (Strategic Alliance for Risk Reduction)\r\n 20110509\r\n DCS Hydrology Submission for City of Longview PAL, Cowlitz County WA\r\n FEMA-DCS-Hydrology\r\n \r\n Washington, DC\r\n Federal Emergency Management Agency\r\n \r\n http://hazards.fema.gov\r\n \r\n \r\n Federal Emergency Management Agency\r\n Unknown\r\n FEMA CASE 11-10-0132S\r\n \r\n \r\n \r\n \r\n \r\n Hydrology data include spatial datasets and data tables necessary for documenting the hydrologic procedures for estimating flood discharges for a flood insurance study, which includes the hydrologic data expected by FEMA for new riverline studies. (Source: FEMA Guidelines and Specifications, Appendix M)\r\n The objective of this Hydrology data submission is to archive the hydrologic data for a study in a database such that it can be revised and used with minimum effort in future flood insurance studies or map revisions.\r\n \r\n \r\n \r\n \r\n 20110427\r\n \r\n \r\n MIP Submission Date\r\n \r\n \r\n In work\r\n Unknown\r\n \r\n \r\n \r\n -123.03\r\n -122.91785\r\n 46.222365\r\n 46.140255\r\n \r\n \r\n \r\n \r\n ISO 19115 Topic Category\r\n environment\r\n inlandWaters\r\n \r\n \r\n FEMA NFIP Topic Category\r\n Hydrology\r\n Digital Flood Insurance Rate Map\r\n DFIRM\r\n Flood Hazard data\r\n 0.2-Percent-Annual-Chance Flood\r\n 1-Percent-Annual-Chance Flood\r\n 2-Percent-Annual-Chance Flood\r\n 10-Percent-Annual-Chance Flood\r\n Hydrograph\r\n Bulletin 17B\r\n Flow Gage\r\n Soil Type\r\n Landuse\r\n Link\r\n Node\r\n Watershed/Basin\r\n \r\n \r\n None\r\n REGION 10\r\n STATE WA\r\n COUNTY COWLITZ\r\n COUNTY-FIPS 015C\r\n COMMUNITY Cowlitz County, Unincorporated and Incorporated Areas\r\n FEMA-CID 53015C\r\n COMMUNITY City of Longview\r\n FEMA-CID 530034\r\n HYDROLOGIC UNIT 17080003\r\n HYDROLOGIC UNIT 17080005\r\n \r\n \r\n None\r\n Acknowledgement of FEMA would be appreciated in products derived from these data. This digital data is produced for the purposes of updating/creating a DFIRM database.\r\n Other HEC-HMS PeakFQ and MS Excel\r\n \r\n \r\n Proven hydrologic methods and/or FEMA approved models are used to compute flows at different locations and for different recurrence intervals (e.g. 1-percent-annual-chance (100-year) event, the 10-percent-annual-chance (10-year), 2-percent-annual-chance (50-year), and 0.2-percent-annual-chance (500-year) event). Computed flows are compared with historic data and flows established in previous hydrologic investigations to ensure reasonableness. Flows at the confluences are checked for the possibility of coincident peaks. Flows exiting the system and regulated by dams are carefully analyzed. At a given location flows for longer recurrence intervals are larger.\r\n Flows are computed at different locations of the study area. The method(s) and/or model(s) are described in the FIS Report. Assumptions and special considerations are also clearly stated in the report. Flows previously determined in other studies or hydrologic investigations are used for comparison. Computed flows are compared with historic flooding data. Submittal of hydrologic data in accordance with Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix M: Data Capture Standards ensures completeness of the Hydrology Study submittal.\r\n \r\n \r\n \r\n \r\n U.S. Army Corps of Engineers, Portland District\r\n 20100204\r\n Mount St. Helens Project Cowlitz River Levee System, 2009 Level of Flood Protection Update Summary\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 20100204\r\n \r\n \r\n publication date\r\n \r\n Other1\r\n Engineering Study completed by the USACE to update the level of protection for the Cowlitz River as part of ongoing activities of the Mount St. Helens project.\r\n \r\n \r\n \r\n \r\n USDA/NRCS - National Cartography and Geospatial Center\r\n 20110302\r\n National Elevation Data 10 meter or better\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 2000\r\n \r\n \r\n publication date\r\n \r\n Other2\r\n Topography based hydrologic parametes suchas drainage areas, slope, and longest flow paths were generated from DEMs\r\n \r\n \r\n \r\n \r\n STARR\r\n 20110509\r\n Rainfall Runoff Analysis\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 20110427\r\n \r\n \r\n publication date\r\n \r\n Other3\r\n Rainfall Runoff Analysis based on HEC-HMS v. 3.4 or greater\r\n \r\n \r\n \r\n \r\n U.S. Geological Survey\r\n 20110216\r\n NLCD 2006 Land Cover\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 2006\r\n \r\n \r\n publication date\r\n \r\n LANDUSE1\r\n Land cover/use information used to determine curve numbers for rainfall runoff model\r\n \r\n \r\n \r\n \r\n U.S. Department of Agriculture, Natural Resources Conservation Service\r\n 20090922\r\n Soil Survey Geographic (SSURGO)database for Cowlitz County, Wasington\r\n \r\n \r\n online\r\n \r\n \r\n \r\n 2009\r\n \r\n \r\n publication date\r\n \r\n SOILMAP1\r\n Soil data was used to determine curve numbers for rainfall runoff model\r\n \r\n \r\n Process steps include selection of method(s) and/or model(s), preparation of input data and computing/modeling. Preparation of input data involves compilation of rain and/or flow gage data; delineation of sub-basins; and processing of topographic, landuse and soil data, if used.\r\n 20110427\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n Universal Transverse Mercator\r\n \r\n 10\r\n \r\n 0.9996\r\n -123.0\r\n 0.0\r\n 500000\r\n 0.0\r\n \r\n \r\n \r\n \r\n coordinate pair\r\n \r\n 0.000172\r\n 0.000172\r\n \r\n meters\r\n \r\n \r\n \r\n North American Datum of 1983\r\n Geodetic Reference System 80\r\n 6378137.000000\r\n 298.257222\r\n \r\n \r\n \r\n \r\n North American Vertical Datum of 1988\r\n 0.0001\r\n meters\r\n Attribute values\r\n \r\n \r\n \r\n \r\n \r\n \r\n S_Hydro_Reach\r\n A spatial data set depicting the line that represent the connectivity between the subbasins and flow direction between nodes. Required for detailed and limited detailed studies.\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix M: Data Capture Standards and Data Capture Guidelines (available at http://www.fema.gov/fhm/dl_cgs.shtm)\r\n \r\n \r\n \r\n \r\n S_Nodes\r\n A spatial data set consisting of points that depict locations of computed discharges for the 10-, 2-, 1-, and 0.2-percent-annual-chance floods. Required for detailed and limited detailed studies. Required for approximate studies when the data is available.\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix M: Data Capture Standards and Data Capture Guidelines (available at http://www.fema.gov/fhm/dl_cgs.shtm)\r\n \r\n \r\n \r\n \r\n S_Subbasins\r\n A spatial data set consisting of polygons representing watershed or subwatershed areas contributing runoff to the discharge points. Required for detailed and limited detailed studies. Required for approximate studies when the data is available.\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix M: Data Capture Standards and Data Capture Guidelines (available at http://www.fema.gov/fhm/dl_cgs.shtm)\r\n \r\n \r\n \r\n \r\n S_Submittial_Info\r\n A spatial data set consisting of polygons depicting the extents of the studied area.\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix M: Data Capture Standards and Data Capture Guidelines (available at http://www.fema.gov/fhm/dl_cgs.shtm)\r\n \r\n \r\n \r\n The Hydrology submission is made up of several data themes containing both spatial and attribute information. These data together represent the current hydrology for the subject area as identified by FEMA. The attribute tables include node discharges and elevations, network connectivity, basin, and other data related to the NFIP.\r\n Appendix M of FEMA Guidelines and Specifications for FEMA Flood Hazard Mapping Partners contains a detailed description of the data themes and references to other relevant information.\r\n \r\n \r\n \r\n \r\n \r\n \r\n Federal Emergency Management Agency\r\n \r\n \r\n mailing\r\n
500 C Street, S.W.
\r\n Washington\r\n District of Columbia\r\n 20472\r\n USA\r\n \r\n 1-877-336-2627\r\n miphelp@riskmapcds.com\r\n \r\n \r\n FEMA-derived data products\r\n No warranty expressed or implied is made by FEMA regarding the utility of the data on any other system nor shall the act of distribution constitute any such warranty.\r\n \r\n \r\n \r\n FEMA-DCS-HYDROLOGY\r\n \r\n \r\n \r\n \r\n \r\n http://hazards.fema.gov\r\n \r\n \r\n \r\n \r\n \r\n Contact Distributor\r\n \r\n \r\n \r\n 20110427\r\n \r\n \r\n \r\n Kelly Durst\r\n Federal Emergency Management Agency\r\n \r\n \r\n mailing\r\n
130 228th Avenue Southwest
\r\n Bothell\r\n Washington\r\n 98021-9796\r\n USA\r\n \r\n 1-425-487-4636\r\n kelly.durst@dhs.gov\r\n \r\n \r\n FGDC Content Standards for Digital Geospatial Metadata\r\n FGDC-STD-001-1998\r\n \r\n http://hazards.fema.gov\r\n http://www.epsg.org\r\n FEMA NFIP Metadata Content and Format Standard\r\n \r\n \r\n\r\n\r\n","source_transform":null,"status":"error"}