{"action":"create","ckan_id":null,"date_created":"Mon, 02 Mar 2026 23:51:33 GMT","date_finished":null,"harvest_job_id":"57488dae-58a5-4659-896b-3e4a105d1b84","harvest_source_id":"4c62556f-0fa3-402d-90f6-6a46cd80a117","id":"b03ea2ca-9e46-42e2-a056-e39bf1141e0c","identifier":"https://hazards.fema.gov/filedownload/metadata/R10/631066-DevHydrologicData.xml","parent_identifier":null,"source_hash":"80bd786b84e5fa27e04b4c710703a61c52c57f747367e7e64db39a099dc27832","source_raw":"\r\n\r\n \r\n \r\n \r\n Northwest Hydraulic Consultants, Inc.\r\n 20090220\r\n DCS Hydrology Submission for WHATCOM COUNTY, WASHINGTON\r\n FEMA-DCS-Hydrology\r\n \r\n Washington, District of Columbia\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 09-10-0167S\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 N)\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 20090220\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 -122.2363328\r\n -122.1273977\r\n 48.8136807\r\n 48.66374649\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 1-Percent-Annual-Chance Flood\r\n Channel\r\n Floodflow-Frequency Curve\r\n Hydrograph\r\n Regression Equation\r\n Bulletin 17B\r\n Flow Gage\r\n Stream\r\n Watershed/Basin\r\n \r\n \r\n Geographic Names Information System\r\n REGION 10\r\n STATE WA\r\n COUNTY WHATCOM\r\n COUNTY-FIPS 53073\r\n COMMUNITY WHATCOM COUNTY AND INCORPORATED AREAS\r\n FEMA-CID 53073C\r\n \r\n \r\n None\r\n Acknowledgment 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 Regression/NFF, Other HEC-FFA\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 N: Data Capture Standards ensures completeness of the Hydrology Study submittal.\r\n \r\n \r\n \r\n \r\n United Stages Geologic Survey\r\n 20090220\r\n Stream Gage 1220900 near Wickersham, WA\r\n \r\n \r\n 40000\r\n online\r\n \r\n \r\n \r\n 20090220\r\n \r\n \r\n publication date\r\n \r\n FLOW-GAGE1\r\n Provided data for the South Fork Nooksack River in Whatcom County, WA, from which flood frequency analyses were conducted.\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 20090220\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n State Plane Coordinate System 1983\r\n \r\n 4601\r\n \r\n 47.500000\r\n -120.833333\r\n 47.000000\r\n 1640416.666667\r\n 0.000000\r\n \r\n \r\n \r\n \r\n coordinate pair\r\n \r\n 0.000220\r\n 0.000220\r\n \r\n survey feet\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 \r\n \r\n None\r\n The data set consists of a report detailing our hydrologic analysis for the South Fork Nooksack River in Whatcom County, WA, and does not include any spatial data sets.\r\n FEMA Guidelines and Specifications for Flood Hazard Mapping Partners, Appendix N: 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 Gage, Basin, Boundary, Soil, Landuse, Impervious Areas, Network Connectivity, Flow and other data related to the NFIP.\r\n Appendix N 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 FEMA, Mapping Information Platform\r\n \r\n \r\n mailing address\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@mapmodteam.com\r\n \r\n \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 20090220\r\n \r\n \r\n \r\n Todd Bennett\r\n Northwest Hydraulic Consultants, Inc.\r\n \r\n \r\n mailing address\r\n
16300 Christensen Road, Suite 350
\r\n Seattle\r\n Washington\r\n 98188-3422\r\n USA\r\n \r\n 1-206-241-6000\r\n tbennett@nhc-sea.com\r\n \r\n \r\n FGDC Content Standards for Digital Geospatial Metadata\r\n FGDC-STD-001-1998\r\n local time\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"}