Identification Information

Title Monthly PRISM Maximum Temperature (April/1915)

Date 2013-02-27

Date Type Publication

Cited Responsible Party

Organization Name The PRISM Climate Group at Oregon State University.

Role identify

Presentation Form remote-sensing image

Abstract Spatially distributed monthly and annual temperature. Each file represents 1 month of 1 year for the period 1895-1997. Distribution of the point measurements to a spatial grid was accomplished using the PRISM model, developed by Christopher Daly, Director, The PRISM Climate Group, Oregon State University. Care should be taken in estimating temperature values at any single point on the map. Temperature estimated for each grid cell is an average over the entire area of that cell; thus, point temperature can be estimated at a spatial precision no better than half the resolution of a cell. For example, the temperature data were distributed at a resolution of approximately 4km. Therefore, point temperature can be estimated at a spatial precision no better than 2km. However, the overall distribution of temperature features is thought to be accurate. For further information, the online PRISM homepage can be found at URL:http://prism.oregonstate.edu. Further information on the current state of this project can be found at URL:ftp://ftp.ncdc.noaa.gov/pub/data/prism100

Purpose Display and/or analyses requiring spatially distributed monthly or annual temperature for the period 1895-1997.

Supplemental Information There are many methods of interpolating temperature from monitoring stations to grid points. Some provide estimates of acceptable accuracy in flat terrain, but few have been able to adequately explain the extreme, complex variations in temperature that occur in mountainous regions. Significant progress in this area has been achieved through the development of PRISM (Parameter-elevation Regressions on Independent Slopes Model). PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of monthly and annual temperature (as well as other climatic parameters). PRISM is well suited to regions with mountainous terrain, because it incorporates a conceptual framework that addresses the spatial scale and pattern of orographic temperature. Values of -9999 indicate no data.

Status Complete

Point of Contact

Individual Name Christopher Daly

Organization Name

Position Name

Role Point of contact

Voice (541) 737-2531

Facsimile

Address

Delivery Point 2001 Kelley Engineering Center
City Corvallis
Administrative Area Oregon
Postal Code 97331-2209
Country USA

Electronic Mail Address gibson@nacse.org

Maintenance and Update Frequency As needed

Descriptive Keywords air_temperature, Prism, maximum temperature

Access Constraints Access pursuant to license agreement

Use Constraints Acknowledgement of the following agencies in products derived from these data: National Oceanic and Atmospheric Administration (NOAA), National Aeronautics and Space Administration (NASA), National Climatic Data Center (NCDC) , National Center for Atmospheric Research (NCAR), PRISM Model, the The PRISM Climate Group and the Oregon Climate Service at Oregon State University.

Language English

Topic Category climatologyMeteorologyAtmosphere

Extent

Geographic Bounding Box

West Bound -125.020833333333
East Bound -66.47916757
North Bound 49.9375
South Bound 24.0625

Temporal Extent

Beginning Position 1915-04-01
Ending Position 1915-04-30

Data Quality Information

Horizontal Positional Accuracy Report

Report Accuracy of this data set is based on the original specification of the Defense Mapping Agency (DMA) 1 degree digital elevation models (DEM). The stated accuracy of the original DEMs are 130 m circular error with 90% probability.

Quantitative Horizontal Positional Accuracy Assessment

Horizontal Positional Accuracy Value 130
Horizontal Positional Accuracy Explanation The broad DMA production objective for 1-degree DEM's.

Logical Consistency Report National Weather Service Cooperative (COOP) TD3200 daily data were passed through QA/QC procedures developed at the National Climatic Data Center prior to creation of the TD3220 monthly temperature data. For further information, see URL:http://www.ncdc.noaa.gov

Completeness Report Point estimates of monthly temperature originated from the following sources: National Weather Service Cooperative (COOP) stations, 2) Natural Resources Conservation Service (NRCS) SNOTEL, 3) local networks, and 4) statistically in-filled missing monthly data to produce a serially complete station data set, generated by the National Center for Atmospheric Research (NCAR).

Lineage

Source Information

Source Citation

Source Scale Denominator

Type of Source Media digital files

Source Time Period of Content

Beginning Position 1915-04-01
Ending Position 1915-04-30
Source Currentness Reference ground condition

Source Citation Abbreviation Summary of the Month

Source Contribution Location and values of known average monthly and annual precipitation

Source Information

Source Citation

Source Scale Denominator

Type of Source Media digital files, paper reports, online

Source Time Period of Content

Beginning Position 1915-04-01
Ending Position 1915-04-30
Source Currentness Reference ground condition

Source Citation Abbreviation SNOTEL (SNOwpack TELemetry)

Source Contribution Location and values of known average monthly and annual precipitation

Source Information

Source Citation

Source Scale Denominator

Type of Source Media digital files

Source Time Period of Content

DateTime 1985
Source Currentness Reference Publication Date

Source Citation Abbreviation DEM

Source Contribution Terrain surface input to PRISM model for estimation of precipitation between known points.

Source Information

Source Citation

Source Scale Denominator

Type of Source Media digital files

Source Time Period of Content

Beginning Position 1915-04-01
Ending Position 1915-04-30
Source Currentness Reference Publication Date

Source Citation Abbreviation serially in-filled data

Source Contribution Serially in-filled data set in which missing monthly values are replaced with reasonable values generated by a statistical process (kriging).

Process Step

Process Description It is beyond the scope of this metadata to document the processes involved in generating spatially gridded temperature using the PRISM model. However, the processes are documented in numerous conference proceedings and journal articles. The references can be found online at URL:http://prism.oregonstate.edu/prism_new.html.
Process Date 2013-04-19
Process Time
Process Contact

Process Step

Process Description Files were downloaded from the National Climatic Data Center in their native ascii format and reprojected to a byte type geotiff in WGS84. The GDAL (Geospatial Data Abstraction Library) gdalwarp utility was used for both reprojection and file format transformation.

Process Date 2013-04-19

Process Time

Process Contact

Individual Name

Organization Name Earth Data Analysis Center

Position Name Clearinghouse Manager

Role Point of contact

Voice 505-277-3622 ext. 230

Facsimile 505-277-3614

Address

Delivery Point MSC01 1110, Bandelier West Room 118
Delivery Point 1 University of New Mexico
City Albuquerque
Administrative Area NM
Postal Code 87131-0001
Country US

Electronic Mail Address clearinghouse@edac.unm.edu

Monthly PRISM Maximum Temperature (April/1915)

Metadata from the RGIS Metadata Repository

Identification Information

Distribution Information

Spatial Reference Information

Data Quality Information

Metadata Reference Information