Mean December monthly precipitation (1971-2000)
Raster Dataset
Tags
climate,
HJ Andrews, precipitation, meterological measurements, Willamette Basin,
Oregon
Summary
Display and/or analyses requiring spatially distributed monthly or annual precipitation for the climatological period 1971-2000.
Description
Mean December monthly precipitation (1971-2000). These files are spatially gridded precipitation of average monthly and annual precipitation for the climatological period 1971-2000. Distribution of the point measurements to a spatial grid was accomplished using the PRISM model, developed by Chris Daly of PRISM Services/Oregon State University. Care should be taken in estimating precipitation values at any single point on the map. Precipitation estimated for each grid cell is an average over the entire area of that cell; thus, point precipitation can be estimated at a spatial precision no better than half the resolution of a cell. For example, the Oregon precipitation data was distributed at a resolution of approximately 4km. Therefore, point precipitation can be estimated at a spatial precision no better than 2km. However, the overall distribution of precipitation features is thought to be accurate. For further information, the online PRISM homepage can be found at <URL:http://prism.oregonstate.edu>. 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.
Credits
Chris Daly
Use
limitations
See data access policy at www.fsl.orst.edu/lter/data (especialy the data use policy)
Extent
West -122.375636 East -122.001531 North 44.374318 South 44.125477
Scale Range
Maximum (zoomed in) 1:5,000 Minimum (zoomed out) 1:150,000,000
ArcGIS Metadata ▼►
Topics and Keywords ▼►
- Thesaurus ▼►
- Title Andrews Forest LTER Thesaurus
Citation ▼►
ms02726.zip
Citation Contacts ▼►
- Individual's name Chris Daly
- Organization's name PRISM Climate Group, Northwest Alliance for Computational Science and Engineering
- Contact's position Director
- Contact's role originator
- Contact information ▼►
- Phone
- Voice 541-737-2531
- Address
- Type both
- Delivery point 2000 Kelley Engineering Center
- City Corvallis
- Administrative area OR
- Postal code 97331
- Country US
- e-mail address daly@nacse.org
Resource Details ▼►
Chris Daly
- * Name december
- * Location file://J:\hja83\daly\december
- * Access protocol Local Area Network
Extents ▼►
- Description
ground condition
- Temporal extent
- Beginning date 1970-01-01 00:00:00
- Ending date 2010-12-31 00:00:00
- Geographic extent
- Bounding rectangle
- Extent type Extent used for searching
- * West longitude -122.375636
- * East longitude -122.001531
- * North latitude 44.374318
- * South latitude 44.125477
- * Extent contains the resource Yes
- * West longitude 549950.000000
- * East longitude 579550.000000
- * South latitude 4886290.000000
- * North latitude 4913640.000000
- * Extent contains the resource Yes
Resource Points of Contact ▼►
- Individual's name Chris Daly
- Organization's name PRISM Climate Group, Northwest Alliance for Computational Science and Engineering
- Contact's position Director
- Contact's role point of contact
- Contact information ▼►
- Phone
- Voice 541-737-2531
- Address
- Type both
- Delivery point 2000 Kelley Engineering Center
- City Corvallis
- Administrative area OR
- Postal code 97331
- Country US
- e-mail address daly@nacse.org
Resource Maintenance ▼►
Resource Constraints ▼►
- Limitations of use
While substantial efforts are made to ensure the accuracy of data and documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is". The Andrews LTER shall not be liable for damages resulting from any use or misinterpretation of data sets.
- Other constraints
Available on-line
- Classification unclassified
- Limitations of use
See data access policy at www.fsl.orst.edu/lter/data (especialy the data use policy)
Spatial Reference ▼►
- * Type Projected
- * Geographic coordinate reference GCS_North_American_1983
- * Projection NAD_1983_UTM_Zone_10N
- * Coordinate reference details
- Projected coordinate system
- Well-known identifier 26910
- X origin -5120900
- Y origin -9998100
- XY scale 450445547.3910538
- Z origin -100000
- Z scale 10000
- M origin -100000
- M scale 10000
- XY tolerance 0.001
- Z tolerance 0.001
- M tolerance 0.001
- High precision true
- Latest well-known identifier 26910
- Well-known text PROJCS["NAD_1983_UTM_Zone_10N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-123.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26910]]
- * Value 26910
- * Codespace EPSG
- * Version 8.2.6
Spatial Data Properties ▼►
- * Number of dimensions 2
- Axis dimensions properties
- Dimension type column (x-axis)
- * Dimension size 592
- * Resolution 50.000000 m (meter)
- Axis dimensions properties
- Dimension type row (y-axis)
- * Dimension size 547
- * Resolution 50.000000 m (meter)
- * Cell geometry area
- * Point in pixel center
- * Transformation parameters are available Yes
- * Check points are available No
- Corner points
- * Point 549950.000000 4886290.000000
- * Point 549950.000000 4913640.000000
- * Point 579550.000000 4913640.000000
- * Point 579550.000000 4886290.000000
- * Center point 564750.000000 4899965.000000
- General Information
- * Pixel depth 32
- * Compression type RLE
- * Number of bands 1
- * Raster format GRID
- * Source type continuous
- * Pixel type floating point
- * No data value -3.4028235e+038
- * Has colormap No
- * Has pyramids Yes
Spatial Data Content ▼►
- * Type of information physical measurement
- Attribute described by cell values mean December monthly precipitation (1971-2000)
- Band information
- * Description precipitation (mm x100)
- * Maximum value 45873.000000
- * Minimum value 28537.000000
- Units
- Symbol m
- * Number of bits per value 32
- Triangulation has been performed No
- Radiometric calibration is available No
- Camera calibration is available No
- Film distortion information is available No
- Lens distortion information is available No
Data Quality ▼►
- Resource level dataset
- Measure description
All data were based on the same averaging period (1971-2000). Similar quality assurance procedures were used with all input data sets.
- Measure description
Care should be taken in estimating precipitation values at any single point on the map. Precipitation estimated for each grid cell is an average over the entire area of that cell; thus, point precipitation can be estimated at a spatial precision no better than half the resolution of a cell. For example, the Oregon precipitation data was distributed at a resolution of approximately 4km. Therefore, point precipitation can be estimated at a spatial precision no better than 2km. However, the overall distribution of precipitation features is thought to be accurate.
Lineage ▼►
- When the process occurred 2010-09-29 00:00:00
- Description
It is beyond the scope of this metadata to document the processes involved in generating spatially gridded precipitation using the PRISM model. However, the processes are documented in numerous conference proceedings and journal articles. The references can be found online at <URLhttp://www.prism.oregonstate.edu/>.
- Process contact
- Individual's name Christopher Daly
- Organization's name PRISM Group, Northwest Alliance for Computational Science and Engineering
- Contact's position Principal Investigator
- Contact's role processor
- Contact information ▼►
- Phone
- Voice (541) 737-2531
- Fax (541) 737-6609
- Address
- Type both
- Delivery point 2000 Kelley Engineering Center, Oregon State University
- City Corvallis
- Administrative area Oregon
- Postal code 97331
- Country US
- e-mail address daly@nacse.org
- When the process occurred 2010-09-29 00:00:00
- Description
convert from ascii text to ARC/INFO grid
- Process contact
- Individual's name Theresa Valentine
- Organization's name Corvallis Forest Science Laboratory
- Contact's position Spatial Information Manager
- Contact's role processor
- Contact information ▼►
- Phone
- Voice 541-750-7333
- Fax 541-758-7760
- Address
- Type both
- Delivery point 3200 SW Jefferson Way
- City Corvallis
- Administrative area Oregon
- Postal code 97332
- Country US
- e-mail address tvalentine@fs.fed.us or theresa.valentine@orst.edu
- Hours of service
m-f 8:00am-4:00pm
Geoprocessing history ▼►
- Process name
- Date 2010-09-29 14:28:35
- Tool location C:\Program Files\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Conversion Tools.tbx\ASCIIToRaster
- Command issued
- ASCIIToRaster C:\hjandrews\daly\ppt_12.txt C:\hjandrews\daly\december FLOAT
- Include in lineage when exporting metadata No
Distribution ▼►
- Contact information
- Organization's name Oregon State University College of Forestry
- Individual's name Forest Science Data Bank
- Contact's role publisher
- Contact information ▼►
- Address
- Delivery point 3200 SW Jefferson Way
- City Corvallis
- Administrative area OR
- Postal code 97331
- Available format
- File decompression technique no compression applied
- Name esri .e00 file within a zip file
- Ordering process
- Terms and fees none
- Instructions
Obtain information off of WWW site, call contact person for special requests.
- Transfer options
- Online source
- Location http://andrewsforest.oregonstate.edu/data/studies/spatialdata/ms02726.zip
- Access protocol zip file
- Function performed download
- Version ArcGIS 10.2
- * Name Raster Dataset
Fields ▼►
- Type raster
- * Row count 224
- Definition
raster data set
- Definition source
dataset
- Field Rowid ▼►
- Alias row id
- * Data type OID
- * Width 4
- * Precision 0
- * Scale 0
- * Field description
Internal feature number.
- * Description source
ESRI
- * Description of values
Sequential unique whole numbers that are automatically generated.
- Field VALUE ▼►
- * Alias VALUE
- * Data type Integer
- * Width 4
- * Precision 0
- * Scale 0
- Field description
mean monthly precipitation in millimeters x 100
- Description source
PRISM website
- Description of values
number generated by computer model output.
- Field COUNT ▼►
- * Alias COUNT
- * Data type Integer
- * Width 4
- * Precision 0
- * Scale 0
- Field description
cell count per value
- Description source
esri documentation
- Description of values
number generated by computer program, based on number of cells with a particular value.
References ▼►
- Association type cross reference
- Aggregate resource name ▼►
- Title PRISM homepage
- Creation date 2015-01-01 00:00:00
- Publication date 2015-09-10 00:00:00
- Responsible party
- Organization's name Chris Daly, PRISM Services, OSU
- Contact's role originator
- Resource location online
- Location http://prism.oregonstate.edu
Metadata Details ▼►
- Metadata format ArcGIS 1.0
- Metadata style North American Profile of ISO19115 2003
- Standard or profile used to edit metadata FGDC
- Created in ArcGIS for the item 2010-09-29 14:28:35
- Last modified in ArcGIS for the item 2015-12-21 15:34:30
- Automatic updates
- Have been performed Yes
- Last update 2015-12-21 15:32:31
Metadata Contacts ▼►
- Individual's name Theresa Valentine
- Organization's name USDA Forest Service, Corvallis Forest Science Laboratory
- Contact's position Spatial Data Manager
- Contact's role point of contact
- Contact information ▼►
- Phone
- Voice 541-750-7333
- Fax m-f 0800-1630
- Address
- Type both
- Delivery point 3200 SW Jefferson Way
- City Corvallis
- Administrative area OR
- Postal code 97330
- e-mail address tvalentine@fs.fed.us
Metadata Maintenance ▼►
Thumbnail and Enclosures ▼►
FGDC Metadata (read-only) ▼►
Entities and Attributes ▼►
- Detailed Description
- Entity Type
- Entity Type Label december
- Entity Type Definition
- raster data set
- Entity Type Definition Source dataset
- Attribute
- Attribute Label Rowid
- Attribute Definition
- Internal feature number.
- Attribute Definition Source ESRI
- Attribute Domain Values
- Unrepresentable Domain
- Sequential unique whole numbers that are automatically generated.
- Attribute
- Attribute Label VALUE
- Attribute Definition
- mean monthly precipitation in millimeters x 100
- Attribute Definition Source PRISM website
- Attribute Domain Values
- Unrepresentable Domain
- number generated by computer model output.
- Attribute
- Attribute Label COUNT
- Attribute Definition
- cell count per value
- Attribute Definition Source esri documentation
- Attribute Domain Values
- Unrepresentable Domain
- number generated by computer program, based on number of cells with a particular value.