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Precipitation Frequency for California, USA - NOAA Atlas 14 Volume 6


Identification Information:
(datsetid):gov.noaa.nws.ohd.hdsc: OHD-HDSC-NOAAAtlas14V6v2011-CA
Citation:
Citation Information:
Originator: NOAA/NWS/Office of Hydrologic Development, Hydrometeorological Design Studies Center
Publication Date: 20110408
Title: Precipitation Frequency for California, USA - NOAA Atlas 14 Volume 6
Geospatial Data Presentation Form: raster digital data
Series Information:
Series Name: NOAA Atlas 14
Issue Identification: Volume 6
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
Description:
Abstract: This GIS grid atlas contains precipitation frequency estimates for California based on precipitation data collected between 1850-2010. This atlas is an updated version of volume XI (California) of NOAA Atlas 2, published in 1973 and volume 1 of NOAA Atlas 14 (Semiarid Southwest), published in 2006. The grids provide information for durations from 5 minutes through 60 days, and for return periods of 1 year through 1000 years. The grid data also contains estimates for Semiarid Southwest from NOAA Atlas 14 Volume 1 Version 5. Please see the metadata page for the Semiarid Southwest portion of the grid.
Purpose: Precipitation frequency (PF) 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 PF estimates.
Supplemental Information: None
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18501001
Ending Date: 20101231
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: -124.75420
East Bounding Coordinate: -102.98762
North Bounding Coordinate: 42.970820
South Bounding Coordinate: 31.329200
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: None
Place Keyword: Southwest
Place Keyword: California
Place Keyword: Southwestern United States
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 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
Browse Graphic:
Browse Graphic File Name: http://hdsc.nws.noaa.gov/hdsc/pfds/meta/images/ca1_web_thumbnail.png
Browse Graphic File Description: CA 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 Service, Office of Hydrology
Publication Date: 1973
Title: NOAA Atlas 2, Precipitation-Frequency Atlas Of The Western United States
Geospatial Data Presentation Form: document
Series Information:
Series Name: NOAA Atlas 2
Issue Identification: Vol 11
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: NOAA/National Weather Service, Office of Hydrology
Online Linkage: http://www.nws.noaa.gov/ohd/hdsc/noaaatlas2.htm
Online Linkage: http://www.wrcc.dri.edu/pcpnfreq.html
Cross Reference:
Citation Information:
Originator: NOAA/National Weather Serivce, Office of Hydrology
Publication Date: 2004
Title: NOAA Atlas 14, Precipitation-Frequency Atlas of the United States
Geospatial Data Presentation Form: document
Series Information:
Series Name: NOAA Atlas 14
Issue Identification: Vol 6 v2
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: NOAA/National Weather Serivce, Office of Hydrology
Online Linkage: http://hdsc.nws.noaa.gov/hdsc/pfds/
Online Linkage: http://www.wrcc.dri.edu/pcpnfreq.html
Cross Reference:
Citation Information:
Originator: U.S. Weather Bureau and U.S. Department of Agriculture
Publication Date: 1964
Title: Technical Paper No. 49, Two- to ten-day precipitation for return periods of 2 to 100 years in the contiguous United States
Geospatial Data Presentation Form: document
Series Information:
Series Name: Technical Paper
Issue Identification: No. 49
Publication Information:
Publication Place: Silver Spring, MD, USA
Publisher: U.S. Weather Bureau
Online Linkage: http://www.nws.noaa.gov/ohd/hdsc/studies/prcpfreq.html
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 NOAA Atlas 2.
Logical Consistency Report: All data were based on precipitation-reporting stations that had at least 20 years of 15-minute, hourly, and/or daily precipitation data between 1850 and 2010. 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), the Bureau of Reclamation and the National Weather Service. Some data what was not already digitized by NCDC was done so by the Bureau of Reclamation.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2010
Title: Hourly Precipitation Data (DSI-3240)
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: DSI3240
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC
Publisher: National Climatic Data Center (NCDC)
Online Linkage: http://cdo.ncdc.noaa.gov/pls/plclimprod/cdomain.abbrev2id?datasetabbv=DS3240&countryabbv=&GEORegionabbv=&Forceoutside=
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19480101
Ending Date: 20101231
Source Currentness Reference: ground condition
Source Citation Abbreviation: NCDC Climate Data Online -Precipitation Data, Hourly, http://gis.ncdc.noaa.gov/website/ims-cdo/preciphr/, 20110531
Source Contribution: hourly precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2010
Title: 15-minute Precipitation Data (DSI-3260)
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: DSI3260
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC
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: 20101231
Source Currentness Reference: ground condition
Source Citation Abbreviation: NOAA National Climatic Data Center (NCDC) ArcGIS Services, http://gis.ncdc.noaa.gov/rest/services/cdo/precip15/MapServer,20110531
Source Contribution: 15-minute precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: National Climatic Data Center (NCDC)
Publication Date: 2010
Title: U.S. Daily Surface Data (DSI-3200, DSI-3202, DSI-3206, DSI-3210)
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: DSI-3200, DSI-3202, DSI-3206, DSI-3210
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC
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: 20101231
Source Currentness Reference: ground condition
Source Citation Abbreviation: NOAA National Data Center (NCDC) Online Store, http://www1.ncdc.noaa.gov/pub/data/documentlibrary/tddoc/td3202.pdf, 20110531
Source Contribution: daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Alameda County Flood Control & Water Conservation District
Publication Date: Unknown
Title: Daily, hourly, and ALERT Precipitation Data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Hayward, California 94544-1395
Publisher: Alameda County Flood Control & Water Conservation District
Online Linkage: http://www.acgov.org/pwa/
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18880701
Ending Date: 20091031
Source Currentness Reference: ground condition
Source Citation Abbreviation: Hydrologic Data. ACFCD. http://www.acgov.org/pwa/. 4/24/2009
Source Contribution: daily, hourly, and alert precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: California Nevada River Forecast Center (CNRFC )
Publication Date: Unknown
Title: ALERT Precipitation Data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Sacramento, CA 95821-6373
Publisher: CNRFC
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19970401
Ending Date: 20061231
Source Currentness Reference: ground condition
Source Citation Abbreviation: Hartman, Ron. ALERT data. March 2007. E-mail.
Source Contribution: daily alert precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: U.S. Army Corps of Engineers (USACE)
Publication Date: Unknown
Title: daily and hourly precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Sacramento, CA 95814
Publisher: U.S. Army Corps of Engineers
Online Linkage: http://www.spk.usace.army.mil
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19400101
Ending Date: 20061231
Source Currentness Reference: ground condition
Source Citation Abbreviation: U.S. Army Corps of Engineers.’’Daily and hourly precipitation’’.January 2007.DVD.
Source Contribution: daily and hourly precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Contra Costa County Flood Control and Water Conservation District
Publication Date: Unknown
Title: 5-min and daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Sacramento, CA 95814
Publisher: Contra Costa County Flood Control and Water Conservation District
Online Linkage: http://www.co.contra-costa.ca.us/
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19521001
Ending Date: 20080731
Source Currentness Reference: ground condition
Source Citation Abbreviation: Contra Costa County Flood Control and Water Conservation. http://www.co.contra-costa.ca.us . July 2008.
Source Contribution: 5-min, daily, precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: California Department of Water Resources (CDWR)
Publication Date: Unknown
Title: Hourly and Daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Sacramento, CA 94236-0001
Publisher: California Data Exchange Center (CDEC)
Online Linkage: http://cdec.water.ca.gov
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19450101
Ending Date: 20070331
Source Currentness Reference: ground condition
Source Citation Abbreviation: CDWR.”Hourly and daily precipitation”.April 2007.DVD.
Source Contribution: hourly and daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Fresno Metropolitan Flood Control District
Publication Date: Unknown
Title: 15-min and Hourly precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Fresno, CA 93727
Publisher: Fresno Metropolitan Flood Control District
Online Linkage: http://www.fresnofloodcontrol.org
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 20020701
Ending Date: 20070228
Source Currentness Reference: ground condition
Source Citation Abbreviation: Fresno Metropolitan Flood Control District.”15-min and hourly precipitation”. May 2007.DVD.
Source Contribution: 15-min and hourly precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Claire Trower
Publication Date: Unknown
Title: daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Wilderidge, CA
Publisher: Claire Trower
Type of Source Media: electronic mail system
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19800101
Ending Date: 20101231
Source Currentness Reference: ground condition
Source Citation Abbreviation: Trower, Claire.””Daily Precipitation Data”.December 2010.E-mail.
Source Contribution: daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Jim Goodridge, California State Climatologist
Publication Date: Unknown
Title: hourly precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Chico, California
Publisher: Jim Goodridge, California State Climatologist
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19831001
Ending Date: 20101031
Source Currentness Reference: ground condition
Source Citation Abbreviation: Goodridge, Jim.”Hourly precipitation data”. February 2007.DVD.
Source Contribution: hourly precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: LA County, Department of Public Works Water Resources Division (LADPW)
Publication Date: Unknown
Title: daily and 5-min precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Los Angeles, California
Publisher: LADPW
Online Linkage: http://dpw.lacounty.gov/wrd/index.cfm
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18720201
Ending Date: 20070131
Source Currentness Reference: ground condition
Source Citation Abbreviation: LACDPW County of Los Angeles. 5-min and daily precipitation data. March and June 2007.DVD.
Source Contribution: Daily and 5-min precipitation data
Source Information:
Source Citation:
Citation Information:
Originator: Marin County Flood Control and Water Conservation District
Publication Date: Unknown
Title: N-min, hourly, daily annual maximum series (AMS) precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: San Rafael, CA 94903
Publisher: Marin County Civic Center
Online Linkage: http://www.co.marin.ca.us/
Type of Source Media: electronic mail system
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18771001
Ending Date: 20080331
Source Currentness Reference: ground condition
Source Citation Abbreviation: Conatser, Neal.”Precipitation Data”.March 2008.E-mail.
Source Contribution: n-min, hourly, daily precipitation AMS data
Source Information:
Source Citation:
Citation Information:
Originator: NCDC
Publication Date: Unknown
Title: N-minute Precipitation Data (DSI-9649)
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Asheville, NC
Publisher: National Climatic Data Center (NCDC)
Online Linkage: http://www.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: 19730101
Ending Date: 20071231
Source Currentness Reference: ground condition
Source Citation Abbreviation: NCDC. http://www.ncdc.noaa.gov/oa/ncdc.html .September 2010.
Source Contribution: n-minute precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Orange County Public Works, Orange County Watersheds
Publication Date: Unknown
Title: ALERT precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Orange County, California
Publisher: Orange County Public Works, Orange County Watersheds
Online Linkage: http://www.parks.ca.gov/
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19710701
Ending Date: 20071130
Source Currentness Reference: ground condition
Source Citation Abbreviation: California Department of Parks and Recreation.”ALERT data”.May 2007.DVD.
Source Contribution: ALERT precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Remote Automated Weather Stations (RAWS)
Publication Date: Unknown
Title: RAWS precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Reno, Nevada 89512
Publisher: Western Regional Climate Center (WRCC)
Online Linkage: http://www.raws.dri.edu/index.html
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19661001
Ending Date: 20101031
Source Currentness Reference: ground condition
Source Citation Abbreviation: Hourly Remote Automated Weather Stations (RAWS) data.Western Regional Climate Center (WRCC).http://www.raws.dri.edu/index.html .March 2008.
Source Contribution: precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Riverside County Flood Control and Water Conservation District (RCFCWCD)
Publication Date: Unknown
Title: ALERT and hourly precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Riverside, CA 92501
Publisher: Hydrologic Data Collection Section, RCFCWCD
Online Linkage: http://www.floodcontrol.co.riverside.ca.us/
Type of Source Media: electronic mail system
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19400101
Ending Date: 20070731
Source Currentness Reference: ground condition
Source Citation Abbreviation: Clark, Steven.”Precipitation data”.July 2007.E-mail.
Source Contribution: ALERT and hourly precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: San Bernardino County Flood Control District
Publication Date: Unknown
Title: ALERT precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: San Bernardino, California
Publisher: San Bernardino County Flood Control District
Type of Source Media: electronic mail system
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19451001
Ending Date: 20100930
Source Currentness Reference: ground condition
Source Citation Abbreviation: San Bernardino County Flood Control. “Precipitation data.” September 2010. DVD
Source Contribution: ALERT precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: County of Santa Barbara, Flood Control and Water Conservation District
Publication Date: Unknown
Title: ALERT, hourly, and daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Santa Barbara, CA 93101
Publisher: Santa Barbara County Flood Control District
Online Linkage: http://www.countyofsb.org/pwd/pwwater.aspx
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18671101
Ending Date: 20070531
Source Currentness Reference: ground condition
Source Citation Abbreviation: Santa Barbara County Flood Control District. “Precipitation Data”.July 2007.DVD.
Source Contribution: ALERT, hourly, and daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Santa Clara Valley Water District
Publication Date: Unknown
Title: ALERT and daily precipitation data
Geospatial Data Presentation Form: tabular digital data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: San Jose, CA 95118
Publisher: Santa Clara Valley Water District
Online Linkage: http://www.valleywater.org/
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18730701
Ending Date: 20100731
Source Currentness Reference: ground condition
Source Citation Abbreviation: Santa Clara Valley Water District. “Precipitation data”. October 2010.DVD.
Source Contribution: ALERT and daily precipitation data
Source Information:
Source Citation:
Citation Information:
Originator: San Diego Flood Control District
Publication Date: Unknown
Title: ALERT, 15-minute, hourly, and daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: San Diego, CA 92123
Publisher: San Diego Flood Control District, Department of Public Works
Online Linkage: http://sdcfcd.org
Type of Source Media: electronic mail system
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18501001
Ending Date: 20070228
Source Currentness Reference: ground condition
Source Citation Abbreviation: Allen, Rand. “ALERT precipitation data”.March 2007.E-mail
Source Contribution: ALERT, 15-minute, hourly, and daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Natural Resources Conservation Service, SNOTEL Precipitation Data
Publication Date: Unknown
Title: daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Portland, Oregon 97232-1274
Publisher: Natural Resources Conservation Service
Online Linkage: http://www.wcc.nrcs.usda.gov/snotel/California/california.html
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 19031001
Ending Date: 20100930
Source Currentness Reference: ground condition
Source Citation Abbreviation: daily and hourly precipitation data. NRCS. http://www.wcc.nrcs.usda.gov/snotel/California/california.html .September 2010.
Source Contribution: daily precipitation information
Source Information:
Source Citation:
Citation Information:
Originator: Ventura County Watershed Protection District
Publication Date: Unknown
Title: ALERT and daily precipitation data
Series Information:
Series Name: None
Issue Identification: None
Publication Information:
Publication Place: Ventura CA 93009
Publisher: Ventura County Watershed Protection District
Online Linkage: http://www.vcwatershed.org/hydrodata
Type of Source Media: disc
Source Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 18730701
Ending Date: 20070131
Source Currentness Reference: ground condition
Source Citation Abbreviation: Ventura County Watershed Protection District.”Precipitation data”.February 2007.DVD
Source Contribution: ALERT and daily precipitation data
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 posted here: <http://www.nws.noaa.gov/ohd/hdsc/current-projects/project.html> or the NOAA Atlas 14 Documention.
Process Date: 20100301
Spatial Data Organization Information:
Direct Spatial Reference Method: Raster
Raster Object Information:
(cvaltype):integer
Raster Object Type: Grid Cell
Row Count: 1397
Column Count: 2612
Vertical Count: 1
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geographic:
Latitude Resolution: 0.00833333
Longitude Resolution: 0.00833333
Geographic Coordinate Units: Decimal degrees
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137.000000
Denominator of Flattening Ratio: 298.257222
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: precipitation frequency grid cell value
Attribute Definition: gridded precipitation frequency estimates
Attribute Definition Source: NWS/OHD/HDSC
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Value
Attribute Definition: Feature geometry. Grid cell precipitation in inches*1000
Attribute Definition Source: HDSC
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 9999999
Attribute Units of Measure: 1000ths of inches; -999 is missing
Attribute Value Accuracy Information:
Attribute Value Accuracy: .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
Resource Description: Downloadable data.
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
Transfer Size: 17.2
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: HDSC PFDS;
Network Resource Name: swXyrYY (X = return period, YY = duration; u = upper limit, l= lower limit) for partial duration series, _ams for annual maximum series
Access Instructions: Web download
Fees: None
Technical Prerequisites: A grid- or raster-based GIS, such as ArcInfo (GRID) or Arcview 3.x/8.x/9.x (with Spatial Analyst Extension). The grids can however be converted into GRASS ASCII grids by manipulating the header.
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
/geoportal/rest/document?f=html&id=%7B39225212-66D8-4255-B9F6-CBA1AA772B24%7D
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