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Precipitation Frequency for Puerto Rico and the US Virgin Islands - NOAA Atlas 14 Volume 3


Identification Information:
(datsetid):gov.noaa.nws.ohd.hdsc: OHD-HDSC-NOAAAtlas14V3v2011-PR
Citation:
Citation Information:
Originator: NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center
Publication Date: 20060628
Title: Precipitation Frequency for Puerto Rico and the US Virgin Islands - NOAA Atlas 14 Volume 3
Geospatial Data Presentation Form: raster digital data
Series Information:
Series Name: NOAA Atlas 14
Issue Identification: Volume 3
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center
Online Linkage: http://hdsc.nws.noaa.gov/hdsc/pfds/pfds_gis.html
Online Linkage: http://hdsc.nws.noaa.gov/hdsc/pfds/
Online Linkage: http://www.nws.noaa.gov/ohd/hdsc/index.html
Online Linkage: ftp://hdsc.nws.noaa.gov/pub/hdsc/data/
Description:
Abstract: 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.
Purpose: 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.
Supplemental Information: none.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18990101
Ending Date: 20041231
Currentness Reference: Climatological period from which the point precipitation observations were taken.
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -68.00000
East Bounding Coordinate: -64.00000
North Bounding Coordinate: 19.00000
South Bounding Coordinate: 17.00000
Keywords:
Theme:
Theme Keyword Thesaurus: NASA GCMD Science Keywords
Theme Keyword: Atmosphere > Precipitation > Precipitation Frequency
Theme:
Theme Keyword Thesaurus: ISO 19115 Topic Category
Theme Keyword: climatologyMeteorologyAtmosphere
Place:
Place Keyword Thesaurus: NASA GCMD Location Keywords
Place Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Caribbean Sea > Puerto Rico
Stratum:
Stratum Keyword Thesaurus: NASA GCMD Location Keywords
Stratum Keyword: Vertical Location > Ground Layer
(thelayid):
(numthlay):1
(layrname):
Theme:
Theme Keyword Thesaurus: NASA GCMD Science Keywords
Theme Keyword: Atmosphere > Precipitation > Precipitation Frequency
Access Constraints: n/a, no restrictions apply and data is public domain.
Use Constraints: Acknowledgement of NOAA/National Weather Service, Office of Hydrologic Development, Hydrometeorological Design Studies Center (HDSC)
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NOAA/National Weather Service, Office of Hydrologic Development, Hydrometeorological Design Studies Center
Contact Address:
Address Type: mailing and physical address
Address: NOAA/NWS/Office of Hydrologic Development
Address: SSMC2, W/OHD 13
Address: 1325 East-West Highway
City: Silver Spring
State or Province: MD
Postal Code: 20910
Country: USA
Contact Voice Telephone: (301) 713-0640
Contact Facsimile Telephone: (301) 713-0963
Contact Electronic Mail Address: hdsc.questions@noaa.gov
Hours: 9 a.m. to 5 p.m. Eastern, Monday-Friday
Browse Graphic:
Browse Graphic File Name: http://hdsc.nws.noaa.gov/hdsc/pfds/meta/images/pr1_web_thumbnail.png
Browse Graphic File Description: PR 100-year 24-hour
Browse Graphic File Type: PNG
Security Information:
Security Classification System: None
Security Classification: Unclassified
Security Handling Description: None
Native Data Set Environment: Microsoft Windows XP
Cross Reference:
Citation Information:
Originator: NOAA/National Weather Serivce, Office of Hydrology
Publication Date: 1961
Title: Technical Paper 42 - Generalized Estimates of Probable Maximum Precipitation and Rainfall-Frequency Data for Puerto Rico and Virgin Islands
Geospatial Data Presentation Form: document
Series Information:
Series Name: Technical Paper
Issue Identification: No. 42
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: NOAA/National Weather Serivce, Office of Hydrology
Cross Reference:
Citation Information:
Originator: NOAA/National Weather Serivce, Office of Hydrology
Publication Date: 1977
Title: Technical Paper 53, Two-to-Ten-Day Precipitation for Return Periods of 2 to 100 Years in Puerto Rico and Virgin Islands (1965)
Geospatial Data Presentation Form: document
Series Information:
Series Name: Technical Paper
Issue Identification: No. 53
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: NOAA/National Weather Serivce, Office of Hydrology
Data Quality Information:
Attribute Value Accuracy Information:
Attribute Accuracy Report: All attributes created during the creation process were tested for internal consistency. In addition, thorough comparisons where conducted with Technical Paper 53 and 42.
Logical Consistency Report: 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.
Completeness Report: 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.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2000
Title: Hourly Precipitation Data
Series Information:
Series Name: DSI3240
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC, USA
Publisher: National Climatic Data Center (NCDC)
Online Linkage: http://lwf.ncdc.noaa.gov/oa/ncdc.html
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19480101
Ending Date: 20041231
Source Currentness Reference: ground condition
Source Citation Abbreviation: DSI3240
Source Contribution: Location and values of known hourly precipitation amounts.
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2004
Title: Daily Cooperative Summary of the Day
Series Information:
Series Name: DSI3200
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC, USA
Publisher: National Climatic Data Center (NCDC)
Online Linkage: http://lwf.ncdc.noaa.gov/oa/ncdc.html
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18990101
Ending Date: 20041231
Source Currentness Reference: ground condition
Source Citation Abbreviation: DSI3200
Source Contribution: Location and values of known daily precipitation amounts.
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2004
Title: First Order Summary of the Day
Series Information:
Series Name: DSI3210
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC, USA
Publisher: National Climatic Data Center (NCDC)
Online Linkage: http://lwf.ncdc.noaa.gov/oa/ncdc.html
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18990101
Ending Date: 20041231
Source Currentness Reference: ground condition
Source Citation Abbreviation: DSI3210
Source Contribution: Location and values of known hourly and daily precipitation amounts at National Weather Service First Order stations.
Process Step:
Process Description: 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.
Process Date: 200606
Spatial Data Organization Information:
Direct Spatial Reference Method: Raster
Raster Object Information:
(cvaltype):integer
Raster Object Type: Grid Cell
Row Count: 2400
Column Count: 4800
Vertical Count: 1
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.0041666667
Longitude Resolution: 0.0041666667
Geographic Coordinate Units: Decimal degrees
Geodetic Model:
Horizontal Datum Name: D_WGS_1972 (WGS72)
Ellipsoid Name: D_WGS_1972
Semi-major Axis: 6378135.000000
Denominator of Flattening Ratio: 298.260000
Entity and Attribute Information:
Detailed Description:
Entity Type:
Entity Type Label: precipitation frequency grid cell value
Entity Type Definition: ASCII integer
Entity Type Definition Source: Self-evident
Attribute:
Attribute Label: Value
Attribute Definition: Feature geometry. Grid cell precipitation in inches*1000
Attribute Definition Source: Self-evident
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute Value Accuracy Information:
Attribute Value Accuracy: 0.01
Attribute Value Accuracy Explanation: measurement accuracy of precipitation gauges in inches
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: NOAA/NWS/OHD/Hydrometeorological Design Studies Center
Contact Address:
Address Type: mailing address
Address: NOAA/NWS/Office of Hydrologic Development
Address: SSMC2, W/OHD 12
Address: 1325 East-West Highway
City: Silver Spring
State or Province: MD
Postal Code: 20910
Country: USA
Contact Voice Telephone: (301) 713-0640
Distribution Liability: Users must assume responsibility to determine the appropriate use of these data.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ASCII grid
Transfer Size: 4.0
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: HDSC PFDS;
Network Resource Name: prXyrYY.ver2 (X = average recurrence interval, YY = duration; u = upper limit, l= lower limit)
Fees: None
Metadata Reference Information:
Metadata Date: 20110408
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: NOAA/NWS/OHD/Hydrometeorological Design Studies Center
Contact Position: N/A
Contact Address:
Address Type: mailing address
Address: NOAA/NWS/Office of Hydrologic Development
Address: SSMC2, W/OHD 12
Address: 1325 East-West Highway
City: Silver Spring
State or Province: MD
Postal Code: 20910
Country: USA
Contact Voice Telephone: (301) 713-0640
Contact Facsimile Telephone: (301) 713-0963
Contact Electronic Mail Address: hdsc.questions@noaa.gov
Hours: 9 a.m. to 5 p.m. Eastern, Monday-Friday
Metadata Standard Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-012-2002
Metadata Time Convention: local time
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