{"action":"create","ckan_id":null,"date_created":"Sat, 14 Feb 2026 18:20:39 GMT","date_finished":null,"harvest_job_id":"c0101fc0-22de-4055-90ca-a93b7768f1c0","harvest_source_id":"e58be9e9-7e2f-447b-bfbd-8953ea8477d7","id":"4da2278c-7733-4125-8f57-f74627ef3715","identifier":"https://data.noaa.gov/waf/NOAA/nws/owp/hdsc/iso/xml/pr_metadata.xml","parent_identifier":null,"source_hash":"d37d35adc111d2465a91670e8b8f096058ab6f0ea8698804560109204dc713d0","source_raw":"\n \n gov.noaa.nws.ohd.hdsc: OHD-HDSC-NOAAAtlas14V3v2011-PR\n \n \n eng; USA\n \n \n utf8\n \n \n dataset\n \n \n \n \n NOAA/NWS/OHD/Hydrometeorological Design Studies Center\n \n \n N/A\n \n \n \n \n \n \n (301) 713-0640\n \n \n (301) 713-0963\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development\n \n \n SSMC2, W/OHD 12\n \n \n 1325 East-West Highway\n \n \n Silver Spring\n \n \n MD\n \n \n 20910\n \n \n USA\n \n \n hdsc.questions@noaa.gov\n \n \n \n \n 9 a.m. to 5 p.m. Eastern, Monday-Friday\n \n \n \n \n pointOfContact\n \n \n \n \n \n 2011-04-08\n \n \n ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data\n \n \n ISO 19115-2:2009(E)\n \n \n \n \n 3\n \n \n \n \n row\n \n \n 2400\n \n \n 0.0041666667\n \n \n \n \n \n \n column\n \n \n 4800\n \n \n 0.0041666667\n \n \n \n \n \n \n vertical\n \n \n 1\n \n \n \n \n area\n \n \n \n \n \n \n \n \n \n \n \n \n \n Precipitation Frequency for Puerto Rico and the US Virgin Islands - NOAA Atlas 14 Volume 3\n \n \n \n \n 2006-06-28\n \n \n publication\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center\n \n \n \n \n \n \n Silver Spring\n \n \n MD, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center\n \n \n originator\n \n \n \n \n \n \n \n \n \n \n \n http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_gis.html\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n http://hdsc.nws.noaa.gov/hdsc/pfds/\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n http://www.nws.noaa.gov/ohd/hdsc/index.html\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n ftp://hdsc.nws.noaa.gov/pub/hdsc/data/\n \n \n \n \n \n \n \n \n \n mapDigital\n \n \n \n \n NOAA Atlas 14\n \n \n Volume 3\n \n \n \n \n \n \n This GIS grid atlas contains precipitation frequency estimates for Puerto Rico and the U.S. Virgin Islands is based on precipitation data collected between 1/1899-12/2004. This atlas is an updated version of Technical Paper 42 Generalized Estimates of Probable Maximum Precipitation and Rainfall-Frequency Data for Puerto Rico and Virgin Islands and Technical Paper 53, Two-to-Ten-Day Precipitation for Return Periods of 2 to 100 Years in Puerto Rico and Virgin Islands (1965). The grids provide information for durations from 5 minutes through 60 days, and for recurrence intervals of 1 year through 1000 years. All grids are in geographic coordinate system (WGS72 horizontal datum) and units are in 1000th of inches.\n \n \n Precipitation frequency estimates are used as basic design criteria for a wide variety of hydraulic structures such as culverts, roadway drainages, bridges and small dams. This dataset is for the display and/or analyses of spatially distributed point precipitation frequency estimates.\n \n \n completed\n \n \n \n \n NOAA/National Weather Service, Office of Hydrologic Development, Hydrometeorological Design Studies Center\n \n \n \n \n \n \n (301) 713-0640\n \n \n (301) 713-0963\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development\n \n \n SSMC2, W/OHD 13\n \n \n 1325 East-West Highway\n \n \n Silver Spring\n \n \n MD\n \n \n 20910\n \n \n USA\n \n \n hdsc.questions@noaa.gov\n \n \n \n \n 9 a.m. to 5 p.m. Eastern, Monday-Friday\n \n \n \n \n pointOfContact\n \n \n \n \n \n \n asNeeded\n \n \n \n \n \n \n http://hdsc.nws.noaa.gov/hdsc/pfds/meta/images/pr1_web_thumbnail.png\n \n \n PR 100-year 24-hour\n \n \n PNG\n \n \n \n \n \n \n Atmosphere > Precipitation > Precipitation Frequency\n \n \n theme\n \n \n \n \n NASA GCMD Science Keywords\n \n \n \n \n \n \n \n \n \n Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico\n \n \n place\n \n \n \n \n NASA GCMD Location Keywords\n \n \n \n \n \n \n \n \n \n Vertical Location > Ground Layer\n \n \n stratum\n \n \n \n \n NASA GCMD Location Keywords\n \n \n \n \n \n \n \n \n \n Atmosphere > Precipitation > Precipitation Frequency\n \n \n \n \n \n \n \n NASA GCMD Science Keywords\n \n \n \n \n \n \n \n \n \n Users must assume responsibility to determine the appropriate use of these data.\n \n \n \n \n \n \n otherRestrictions\n \n \n Use Constraints: Acknowledgement of NOAA/National Weather Service, Office of Hydrologic Development, Hydrometeorological Design Studies Center (HDSC)\n \n \n \n \n \n \n otherRestrictions\n \n \n Access Constraints: n/a, no restrictions apply and data is public domain.\n \n \n \n \n \n \n unclassified\n \n \n None\n \n \n None\n \n \n \n \n \n \n \n \n Technical Paper 42 - Generalized Estimates of Probable Maximum Precipitation and Rainfall-Frequency Data for Puerto Rico and Virgin Islands\n \n \n \n \n 1961-01-01\n \n \n publication\n \n \n \n \n \n \n NOAA/National Weather Serivce, Office of Hydrology\n \n \n \n \n \n \n Silver Spring\n \n \n MD, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n NOAA/National Weather Serivce, Office of Hydrology\n \n \n originator\n \n \n \n \n documentDigital\n \n \n \n \n Technical Paper\n \n \n No. 42\n \n \n \n \n \n \n crossReference\n \n \n \n \n \n \n \n \n Technical Paper 53, Two-to-Ten-Day Precipitation for Return Periods of 2 to 100 Years in Puerto Rico and Virgin Islands (1965)\n \n \n \n \n 1977-01-01\n \n \n publication\n \n \n \n \n \n \n NOAA/National Weather Serivce, Office of Hydrology\n \n \n \n \n \n \n Silver Spring\n \n \n MD, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n NOAA/National Weather Serivce, Office of Hydrology\n \n \n originator\n \n \n \n \n documentDigital\n \n \n \n \n Technical Paper\n \n \n No. 53\n \n \n \n \n \n \n crossReference\n \n \n \n \n grid\n \n \n eng; USA\n \n \n climatologyMeteorologyAtmosphere\n \n \n Native Dataset Environment: Microsoft Windows XP\n \n \n \n \n \n \n -68.00000\n \n \n -64.00000\n \n \n 17.00000\n \n \n 19.00000\n \n \n \n \n \n \n \n 1899-01-01\n 2004-12-31\n \n \n \n \n \n \n \n none.\n \n \n \n \n \n \n precipitation frequency grid cell value: ASCII integer\n \n \n \n \n \n \n Value\n \n \n Feature geometry. Grid cell precipitation in inches*1000\n \n \n \n Coordinates defining the features.\n \n \n \n \n \n \n \n \n \n \n ASCII grid\n \n \n \n \n \n \n \n \n \n NOAA/NWS/OHD/Hydrometeorological Design Studies Center\n \n \n \n \n \n \n (301) 713-0640\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development\n \n \n SSMC2, W/OHD 12\n \n \n 1325 East-West Highway\n \n \n Silver Spring\n \n \n MD\n \n \n 20910\n \n \n USA\n \n \n \n \n \n \n distributor\n \n \n \n \n \n \n None\n \n \n \n \n \n \n \n \n 4.0\n \n \n \n \n HDSC PFDS;\n \n \n \n \n \n \n prXyrYY.ver2 (X = average recurrence interval, YY = duration; u = upper limit, l= lower limit)\n \n \n \n \n \n \n \n \n \n \n \n \n dataset\n \n \n \n \n \n \n Observed point precipitation values originated from a variety of sources. All station data were subjected to quality control checks by the National Climatic Data Center (NCDC) and the Hydrometeorological Design Studies Center. Some data what was not already digitized by NCDC was done so by the National Weather Service.\n \n \n \n \n \n \n \n All data were based on precipitation-reporting stations that had at least 20 years of hourly and/or 30 years of daily precipitation data between 1899 and 2004. Similar quality assurance procedures were used with all input data sets.\n \n \n \n \n \n \n \n \n \n This spatial dataset was prepared by spatially interpolating point precipitation frequency estimates. The precipitation frequency estimates were calculated using regional L-moment statistics based on an annual maximum data series. The spatial interpolation of the point precipitation frequency estimates was accomplished with PRISM coupled with a derivation process called the cascade, residual add-back (CRAB) procedure. So-called \"index flood,\" otherwise known as the mean annual maximum, grids were created using PRISM, Parameter-elevation Regressions on Independent Slopes Model, at Oregon State University. PRISM is an analytical tool that uses point data, a digital elevation model, and other spatial data sets to generate gridded estimates of climatic parameters. PRISM is uniquely designed and constantly updated to map climate in the most difficult situations, including high mountains, rain shadows, temperature inversions, coastal regions, and other complex climatic regimes. Meanwhile, CRAB is used to actually derive the precipitation frequency grids. CRAB is a derivation process that utilizes the strong, linear relationship between a particular duration and frequency (e.g. 50-year 24-hour) and the next higher frequency (e.g. 100-year 24-hour). In fact, within an L-moment region this relationship is constant and known as the Regional Growth Factor (RGF). With the CRAB procedure however, a global (all-region) relationship is developed based on actual observing-site data, then the linear relationship is applied to the preceding grid (i.e. 50-year 24-hour) to establish a first guess 100-year 24-hour grid. Knowing regional differences occur, residuals (predicted minus observed) are calculated for each observing-site and then normalized (divided by) by the preceding estimate (50-year 24-hour). These (point) normalized residuals are then spatially interpolated to a grid. The resultant grid is then un-normalized by multiplying it by the preceding grid to obtain a grid of actual residuals, in inches. The last step is to simply add the residual grid to the first guess grid to arrive at the final 100-year 24-hour grid. The process, as the term cascade implies, utilizes a previously derived grid to derive the next grid. So the same process is followed for deriving the 200-year 24-hour grid, but instead of the 50-year 24-hour grid being used as the predictor, the new 100-year 24-hour grid is used. For more details about the processes used to create this grid, please see the project quarterly reports.\n \n \n 2006-06-01T00:00:00\n \n \n \n \n \n \n Source Contribution: Location and values of known hourly precipitation amounts.Source Type: online\n \n \n \n \n Hourly Precipitation Data\n \n \n \n \n 2000-01-01\n \n \n publication\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n \n \n \n \n Asheville\n \n \n NC, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n originator\n \n \n \n \n \n \n \n \n \n \n \n http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n \n \n DSI3240\n \n \n None\n \n \n \n \n National Climatic Data Center (NCDC) 2000 Hourly Precipitation Data DSI3240 None Asheville, NC, USA National Climatic Data Center (NCDC) http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n 1948-01-01\n 2004-12-31\n \n \n \n \n \n \n \n \n \n \n \n Source Contribution: Location and values of known daily precipitation amounts.Source Type: online\n \n \n \n \n Daily Cooperative Summary of the Day\n \n \n \n \n 2004-01-01\n \n \n publication\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n \n \n \n \n Asheville\n \n \n NC, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n originator\n \n \n \n \n \n \n \n \n \n \n \n http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n \n \n DSI3200\n \n \n None\n \n \n \n \n National Climatic Data Center (NCDC) 2004 Daily Cooperative Summary of the Day DSI3200 None Asheville, NC, USA National Climatic Data Center (NCDC) http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n 1899-01-01\n 2004-12-31\n \n \n \n \n \n \n \n \n \n \n \n Source Contribution: Location and values of known hourly and daily precipitation amounts at National Weather Service First Order stations.Source Type: online\n \n \n \n \n First Order Summary of the Day\n \n \n \n \n 2004-01-01\n \n \n publication\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n \n \n \n \n Asheville\n \n \n NC, USA\n \n \n \n \n \n \n publisher\n \n \n \n \n \n \n National Climatic Data Center (NCDC)\n \n \n originator\n \n \n \n \n \n \n \n \n \n \n \n http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n \n \n DSI3210\n \n \n None\n \n \n \n \n National Climatic Data Center (NCDC) 2004 First Order Summary of the Day DSI3210 None Asheville, NC, USA National Climatic Data Center (NCDC) http://lwf.ncdc.noaa.gov/oa/ncdc.html\n \n \n \n \n \n \n \n \n \n 1899-01-01\n 2004-12-31\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n annually\n \n \n This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-012-2002) using the 2016-10-18 version of the FGDC RSE to ISO 19115-2 transform.\n \n \n Translated from FGDC 2016-10-18T13:03:33.897-06:00\n \n \n \n \n NOAA/NWS/OHD/Hydrometeorological Design Studies Center\n \n \n N/A\n \n \n \n \n \n \n (301) 713-0640\n \n \n (301) 713-0963\n \n \n \n \n \n \n NOAA/NWS/Office of Hydrologic Development\n \n \n SSMC2, W/OHD 12\n \n \n 1325 East-West Highway\n \n \n Silver Spring\n \n \n MD\n \n \n 20910\n \n \n USA\n \n \n hdsc.questions@noaa.gov\n \n \n \n \n 9 a.m. to 5 p.m. Eastern, Monday-Friday\n \n \n \n \n pointOfContact\n \n \n \n \n \n","source_transform":{"@type":"dcat:Dataset","accessLevel":"non-public","contactPoint":{"@type":"vcard:Contact","fn":"NOAA/National Weather Service, Office of Hydrologic Development, Hydrometeorological Design Studies Center","hasEmail":"mailto:hdsc.questions@noaa.gov"},"describedByType":"application/octet-steam","description":"This GIS grid atlas contains precipitation frequency estimates for Puerto Rico and the U.S. Virgin Islands is based on precipitation data collected between 1/1899-12/2004. This atlas is an updated version of Technical Paper 42 Generalized Estimates of Probable Maximum Precipitation and Rainfall-Frequency Data for Puerto Rico and Virgin Islands and Technical Paper 53, Two-to-Ten-Day Precipitation for Return Periods of 2 to 100 Years in Puerto Rico and Virgin Islands (1965). The grids provide information for durations from 5 minutes through 60 days, and for recurrence intervals of 1 year through 1000 years. All grids are in geographic coordinate system (WGS72 horizontal datum) and units are in 1000th of inches.","distribution":[{"@type":"dcat:Distribution","describedByType":"application/octet-steam","downloadURL":"HDSC PFDS;","mediaType":"placeholder/value"},{"@type":"dcat:Distribution","describedByType":"application/octet-steam","downloadURL":"prXyrYY.ver2 (X = average recurrence interval, YY = duration; u = upper limit, l= lower limit)","mediaType":"placeholder/value"},{"@type":"dcat:Distribution","accessURL":"http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_gis.html","describedByType":"application/octet-steam"}],"identifier":"gov.noaa.nws.ohd.hdsc: OHD-HDSC-NOAAAtlas14V3v2011-PR","issued":"2006-06-28T00:00:00.000+00:00","keyword":["Atmosphere > Precipitation > Precipitation Frequency","Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico","Vertical Location > Ground Layer","Atmosphere > Precipitation > Precipitation Frequency"],"language":[],"license":"https://creativecommons.org/publicdomain/zero/1.0/","modified":"2006-06-28T00:00:00.000+00:00","publisher":{"@type":"org:Organization","name":"NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center"},"rights":"otherRestrictions, unclassified","spatial":"-64.0,17.0,-68.0,19.0","temporal":"1899-01-01T00:00:00+00:00/2004-12-31T00:00:00+00:00","title":"Precipitation Frequency for Puerto Rico and the US Virgin Islands - NOAA Atlas 14 Volume 3"},"status":"error"}