California Average Monthly or Annual Precipitation, 1961-90 Metadata: * Identification_Information * Data_Quality_Information * Spatial_Data_Organization_Information * Spatial_Reference_Information * Entity_and_Attribute_Information * Distribution_Information * Metadata_Reference_Information ------------------------------------------------------------------------ Identification_Information: Citation: Citation_Information: Originator: Chris Daly of Oregon State University and George Taylor of the Oregon Climate Service at Oregon State University Publication_Date: 199804 Title: California Average Monthly or Annual Precipitation, 1961-90 Publication_Information: Publication_Place: Portland, Oregon, USA Publisher: Water and Climate Center of the Natural Resources Conservation Service Description: Abstract: This ftp site contains vector and polygon coverages of average monthly and annual precipitation for the climatological period 1961-90. Parameter-elevation Regressions on Independent Slopes Model (PRISM) derived raster data is the underlying data set from which the polygons and vectors were created. PRISM is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of annual, monthly and event-based climatic parameters. Detailed descriptions of the PRISM raster data can be found with the accompanying raster data sets. For further information, the online PRISM homepage can be found at . Purpose: Display and/or analyses requiring spatially distributed monthly or annual precipitation for the climatological period 1961-90. Supplemental_Information: There are many methods of interpolating precipitation 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 precipitation 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 precipitation (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 precipitation. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19610101 Ending_Date: 19901231 Currentness_Reference: Climatological period from which the point observations were taken. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned for the 1961-90 climatological period. However, this data set will most likely be updated in 2001 for the new 1971-2000 climatological period. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -124.4066009521 East_Bounding_Coordinate: -114.1312103271 North_Bounding_Coordinate: 42.00951766967 South_Bounding_Coordinate: 32.53467941284 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: polygon data Theme_Keyword: precipitation Theme_Keyword: contour data Place: Place_Keyword_Thesaurus: None Place_Keyword: California, USA Access_Constraints: n/a, no restrictions apply Use_Constraints: Acknowledgement of the following agencies in products derived from these data: Natural Resources Conservation Service (NRCS) Water and Climate Center, NRCS National Cartography and Geospatial Center (NCGC), PRISM Model, and the Oregon Climate Service at Oregon State University. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Oregon Climate Service at Oregon State University Contact_Address: Address_Type: mailing address Address: Strand Ag Hall 326, Oregon Climate Service, Oregon State University City: Corvallis State_or_Province: OR Postal_Code: 97331-2209 Country: USA Contact_Voice_Telephone: (541) 737-5705 Contact_Facsimile_Telephone: (541) 737-5710 Contact_Electronic_Mail_Address: oregon@oce.orst.edu Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: SunOS, 5.5.1, UNIX, ARC/INFO version 7.1.2, PRISM ------------------------------------------------------------------------ Data_Quality_Information: Logical_Consistency_Report: Polygon and chain-node topology present. Checks were made to ensure that no two adjacent polygons are labelled with the same precipitation value. A manual spot check was made of peaks, depressions, and islands. Completeness_Report: Point estimates of precipitation originated from the following sources: National Weather Service Cooperative (COOP) stations, 2) Natural Resources Conservation Service (NRCS) SNOTEL, 3) local networks. All COOP station data were subjected to quality control checks by the National Climatic Data Center (NCDC). Lineage: Source_Information: Source_Citation: Citation_Information: Originator: National Climatic Data Center (NCDC) Publication_Date: 1991 Title: U.S. National 1961-1990 Climate Normals, Climatography of the United States No. 81 Publication_Information: Publication_Place: Asheville, NC, USA Publisher: National Climatic Data Center (NCDC) Type_of_Source_Media: digital files Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19610101 Ending_Date: 19901231 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: CLIM81 Source_Contribution: Location and values of known average monthly and annual precipitation Source_Information: Source_Citation: Originator: Natural Resources Conservation Service Publication_Date: 1991 Title: Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys Series_Information: Series_Name: Cooperative Snow Survey Data of Federal - State - Private Cooperative Snow Surveys Issue_Identification: Annual issue for Western US states Publication_Information: Publication_Place: Portland, OR, USA Publisher: Natural Resources Conservation Service, Water and Climate Center Type_of_Source_Media: digital files, paper reports, online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19610101 Ending_Date: 19901231 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: Citation_Information: Originator: Natural Resources Conservation Service, Water and Climate Center Publication_Date: Unpublished material Title: Local Precipitation monitoring networks Type_of_Source_Media: digital files Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19610101 Ending_Date: 19901231 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: LOCAL Source_Contribution: Location and values of known average monthly and annual precipitation Source_Information: Source_Citation: Citation_Information: Originator: Defense Mapping Agency Publication_Date: 1985 Title: 1:250,000-scale Digital Elevation Models (DEM) also known as 1-Degree DEM's Online_Linkage: Publication_Information: Publication_Place: Washington, DC Publisher: U.S. Geological Survey Type_of_Source_Media: digital files Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1985 Source_Currentness_Reference: Publication Date Source_Citation_Abbreviation: DEM Source_Contribution: Terrain surface input to PRISM model for estimation of precipitaion between known points. Process_Step: Process_Description: Filter raster data from a resolution of 4 km to 2 km using a Gaussian filter Process_Date: 199804 Process_Step: Process_Description: Contour 2 km raster data Process_Date: 199804 Process_Step: Process_Description: Convert adjacent contour lines to areas or polygons using custom software Process_Date: 199804 ------------------------------------------------------------------------ Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Label point SDTS_Point_and_Vector_Object_Type: String SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains ------------------------------------------------------------------------ Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.02083333 Longitude_Resolution: 0.02083333 Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum 1983 (NAD83) Ellipsoid_Name: GRS1980 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 ------------------------------------------------------------------------ Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: RANGE Entity_Type_Definition: Polygons representing an area with a fixed value of precipitation. The precipitation value is stored as the item RANGE in the attribute table. Entity_Type_Definition_Source: Oregon Climate Service PRISM Project Entity_Type: Entity_Type_Label: CONTOUR Entity_Type_Definition: Contours representing lines of equal precipitation. The precipitation value is stored as the item CONTOUR in the attribute table. Entity_Type_Definition_Source: Oregon Climate Service PRISM Project Attribute: Attribute_Label: precipitation polygons Attribute_Definition: average precipitation polygons Attribute_Definition_Source: Daly, C., R.P. Neilson, and D.L. Phillips, 1994: A Statistical-Topographic Model for Mapping Climatological Precipitation over Mountainous Terrain. J. Appl. Meteor., 33,140-158. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 600 Attribute_Units_of_Measure: inches Attribute_Measurement_Resolution: 2 inches Attribute: Attribute_Label: precipitation contours Attribute_Definition: average precipitation contours Attribute_Definition_Source: Daly, C., R.P. Neilson, and D.L. Phillips, 1994: A Statistical-Topographic Model for Mapping Climatological Precipitation over Mountainous Terrain. J. Appl. Meteor., 33,140-158. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 600 Attribute_Units_of_Measure: inches Attribute_Measurement_Resolution: 2 inches ------------------------------------------------------------------------ Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Oregon Climate Service Contact_Address: Address_Type: mailing address Address: 316 Strand Agricultural Hall City: Corvallis State_or_Province: OR Postal_Code: 97331 Country: USA Contact_Voice_Telephone: (541) 737-5705 Contact_Facsimile_Telephone: (541) 737-5710 Contact_Electronic_Mail_Address: oregon@oce.orst.edu Distribution_Liability: Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or misuse of the data, or for damage, transmission of viruses or computer contamination through the distribution of these data sets or for the usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARC/INFO coverage Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: or Fees: none Technical_Prerequisites: Geographic data are intended for use in a Geographic Information System (GIS). In addition, this publication contains menu and display programs that operate 16 Mb RAM (absolute minimum), CD-ROM drive with ISO 9660 software driver, Graphics card (640x480 pixels with 256 colors, prefer 1024x1024 with 65,535 colors), Color monitor, mouse, and keyboard. ------------------------------------------------------------------------ Metadata_Reference_Information: Metadata_Date: 19980423 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Tye Parzybok Contact_Address: Address_Type: mailing address Address: Strand Ag Hall 326, Oregon Climate Service, Oregon State University City: Corvallis State_or_Province: OR Postal_Code: 97331-2209 Country: USA Contact_Voice_Telephone: (541) 737-5705 Contact_Facsimile_Telephone: (541) 737-5710 Contact_Electronic_Mail_Address: parzy@oce.orst.edu Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None ------------------------------------------------------------------------ Generated by mp on Thu Aug 13 14:17:30 1998 DOCUMENTATION DATES: February 2002: Reprojected to UTM NAD27 (no shift), and clipped to KRIS Project study area. Contact Name: P. J. Trichilo Institute for Fisheries Resources (IFR) 791 Eighth Street Arcata, CA 95521 Contact's Phone: (707) 822-9428