Koppen Climate Classification for the Conterminous United States
Raster Dataset - GRID - koppen_ics
FGDC, ESRI Metadata
Show Definitions
Description | Spatial | Data Structure | Data Quality | Data Source | Data Distribution | Metadata
Description
Citation
Information used to reference the data.
Title: Koppen Climate Classification for the Conterminous United States
Originators: Bruce Godfrey (Idaho State Climate Services)
Publisher: Idaho State Climate Services
Publication place: Moscow, Idaho
Publication date: 1999
Data type: raster digital data
Description
A characterization of the data, including its intended use and limitations.
Abstract:
The Koppen Climate Classification grid coverages were produced using gridded estimates of precipitation, temperature, and elevation from the PRISM (Parameter-elevation Regressions on Independent Slopes Model).  The model was developed at Oregon State University and information about the gridded ASCII data sets can be obtained from: http://www.ocs.orst.edu/prism/.
Purpose:
To use spatially gridded data from the PRISM project to delineate climate zones based on the Koeppen Climate Classification Criteria.  The criteria used to delineate the zones may be obtained from: http://snow.ag.uidaho.edu/Clim_Map/criteria.html.
Supplemental information:
Procedures_Used:  
1. Aquired the PRISM ASCII files from Oregon Climate Service (http://www.ocs.orst.edu/prism/).

2. Aquired the United State boundary coverage (1:2,000,000) from the GAP Analysis Project Office at the University of Idaho http://www.wildlife.uidaho.edu/). This coverage was orignally obtained by GAP from the ESRI data site (www.esri.com).  

3. Ran the main aml (koeppen.aml) to produce the classification.

4. Merged the individual grids into one grid containing the lowest subclasses.
Dataset credit:
Bruce Godfrey, Idaho State Climate Services.
Language of dataset: en
Data Type
How the data are represented, formatted and maintained by the data producing organization.
File or table name: koppen_ics
Data type: raster digital data
Data format: Raster Dataset
Native dataset environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Time Period of Data
Time period(s) for which the data corresponds to the currentness reference.
Beginning date: 1961
Ending date: 1990
Currentness reference:
ground condition
Status
The state of and maintenance information for the data.
Data status: Complete
Update frequency: None planned
Key Words
Words or phrases that summarize certain aspects of the data.
Theme:
Keywords: climatologyMeteorologyAtmosphere
Keyword thesaurus: ISO 19115 Topic Category
Theme:
Keywords: Koppen Climate Classification
Keyword thesaurus: None
Data Access Constraints
Restrictions and legal prerequisites for accessing or using the data after access is granted.
Access constraints:
Public
Use constraints:
This information is not accurate for legal or navigational purposes.  This information is for use by State Climate Services for Idaho.
Spatial Reference Information
Horizontal Coordinate System
Reference system from which linear or angular quantities are measured and assigned to the position that a point occupies.
Projected coordinate system:
Name: NAD 1927 Albers
Map units: meters
Geographic coordinate system:
Name: GCS North American 1927
Coordinate System Details
Map projection
Map projection name: Albers Conical Equal Area
Standard parallel: 29.500000
Standard parallel: 45.500000
Longitude of central meridian: -96.000000
Latitude of projection origin: 23.000000
False easting: 0.000000
False northing: 0.000000
Planar Coordinate Information
Planar coordinate encoding method: row and column
Coordinate representation:
Abscissa resolution: 4129.672462
Ordinate resolution: 4129.672462
Planar distance units: meters
Geodetic model
Horizontal datum name: North American Datum of 1927
Ellipsoid name: Clarke 1866
Semi-major axis: 6378206.400000
Denominator of flattening ratio: 294.978698
Spatial Domain
The geographic areal domain of the data that describes the western, eastern, northern, and southern geographic limits of data coverage.
Bounding Coordinates
In Projected or local coordinates
NAD 1927 Albers
Boundary Coordinate
Left -2354853.393269 (meters)
Right 2253861.073807 (meters)
Top 3171608.037090 (meters)
Bottom 268448.296630 (meters)
In Unprojected coordinates (geographic)
GCS North American 1927
Boundary Coordinate
West -127.866621 (longitude)
East -65.405706 (longitude)
North 51.596582 (latitude)
South 22.867291 (latitude)
Data Structure and Attribute Information
Overview
Summary of the information content of the data, including other references to complete descriptions of entity types, attributes, and attribute values for the data.
Entity and attribute overview:
VALUE      CLASS
1          A
2          Af
3          Am
4          Aw
5          B
6          BS
7          BSh
8          BSk
9          BW
10         BWh
11         BWk
12         C
13         Cs
14         Csa
15         Csb
16         Csc
17         Cw
18         Cwa
19         Cwb
20         Cwc
21         Cf
22         Cfa
23         Cfb
24         Cfc
25         D
26         Ds
27         Dsa
28         Dsb
29         Dsc
30         Dsd
31         Dw
32         Dwa
33         Dwb
34         Dwc
35         Dwd
36         Df
37         Dfa
38         Dfb
39         Dfc
40         Dfd
41         E
42         ET
43         EF
44         H
Entity and attribute detailed citation:
Critchfield, H. J., 1983: General Climatology. 4th ed. Prentice Hall, 453 pp.
[http://snow.ag.uidaho.edu/Clim_Map/koppen_criteria.htm]
Direct spatial reference method: Raster
Attributes of koppen_ics.vat
Detailed descriptions of entity type, attributes, and attribute values for the data.
Name: koppen_ics.vat
Type of object: Table
Number of records: 23
Attributes
Rowid
Definition:
Internal feature number.
Alias: Rowid Type: OID Width: 4 Precision: 0 Scale: 0
Attribute values: Sequential unique whole numbers that are automatically generated.
Attribute definition source:
ESRI
VALUE
Alias: VALUE Type: Integer Width: 4 Precision: 0 Scale: 0
CLASS
Alias: CLASS Type: String Width: 4 Precision: 0 Scale: 0
COUNT
Alias: COUNT Type: Integer Width: 4 Precision: 0 Scale: 0
Raster Information
Type and number of raster spatial objects in the data.
Raster format: GRID
Raster object type: Grid Cell
Number of raster bands: 1
Raster properties
Raster origin: Upper Left
Has pyramid layers: FALSE
Has image colormap: FALSE
Compression type: Default
Raster display type: matrix coded
Cell information
Number of cells on x-axis: 1116
Number of cells on y-axis: 703
Number of cells on z-axis: 1
Bits per cell: 8
Cell Size:
X direction: 4129.672462
Y direction: 4129.672462
Data Quality and Accuracy Information
General
Information about the fidelity of relationships, data quality and accuracy tests, omissions, selection criteria, generalization, and definitions used to derive the data.
Logical consistency report:
No report.
Completeness report:
No report.
Data Source and Process Information
Data Sources
Information about the source data used to construct or derive the data.
Data source information
PRISM
Title: Climate Data Set for the Conterminous United States
Originators: Chris Daly and Wayne Gibson of the Spatial Climate Analysis Service at Oregon State University, George Taylor of the Oregon Climate Service at Oregon State University
Publisher: Spatial Climate Analysis Service, Oregon
Publication place: Corvallis, Oregon, USA
Publication date: 1990s
Data type: raster digital data
Media: online
Source contribution:
Gridded climate data.
Beginning date: 1961
Ending date: 1990
Currentness reference:
ground condition
Process Steps
Information about events, parameters, tolerances and techniques applied to construct or derive the data.
Process step information
Process Step 1
Process description:
A processing report can be found here:  http://snow.ag.uidaho.edu/Clim_Map/final_report.html
Process date: 1999
Data Source used
PRISM
Title: Climate Data Set for the Conterminous United States
Originators: Chris Daly and Wayne Gibson of the Spatial Climate Analysis Service at Oregon State University, George Taylor of the Oregon Climate Service at Oregon State University
Publisher: Spatial Climate Analysis Service, Oregon
Publication place: Corvallis, Oregon, USA
Publication date: 1990s
Data type: raster digital data
Media: online
Source contribution:
Gridded climate data.
Beginning date: 1961
Ending date: 1990
Currentness reference:
ground condition
Process Step 2
Process description:
An error in the classes.aml was discovered by Ben Logan at Virginia Tech.  It was discovered in the creation of the B parameters that an "or" should have been an "&".  An "or" was replaced with an "&" on line 3.

Code before error discovered:
Class B
if (pptsummer70 >= 0.7 & ppt14 < (2 * tavg14 + 28) & temp/tempA <> 1 or ~
  pptwinter70 >= 0.7 & ppt14 < (2 * tavg14) & temp/tempA <> 1 or ~
  pptsummer70 < 0.7 & ppt14 < (2 * tavg14 + 14) & temp/tempA <> 1 or ~
  pptwinter70 < 0.7 & ppt14 < (2 * tavg14 + 14) & temp/tempA <> 1)
endif


Code after error corrected:
Class B
if (pptsummer70 >= 0.7 & ppt14 < (2 * tavg14 + 28) & temp/tempA <> 1 or ~
pptwinter70 >= 0.7 & ppt14 < (2 * tavg14) & temp/tempA <> 1 or ~
pptsummer70 < 0.7 & ppt14 < (2 * tavg14 + 14) & temp/tempA <> 1 & ~
pptwinter70 < 0.7 & ppt14 < (2 * tavg14 + 14) & temp/tempA <> 1)
endif
Process date: 20060320
ESRI geoprocessing history
Description of ESRI geoprocessing commands, settings, and tolerances applied to the data.
ESRI geoprocessing command information
1 Process
Date: 20091114 Time: 120417
Tool location: C:\Program Files (x86)\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\BuildPyramids
Command issued: BuildPyramids G:\data\anonymous\climatologyMeteorologyAtmosphere\ics\koppen\koppen_ics G:\data\anonymous\climatologyMeteorologyAtmosphere\ics\koppen\koppen_ics
Data Distribution Information
General
Description of the data known by the party from whom the data may be obtained, liability of party distributing data, and technical capabilities required to use the data.
Resource description:
Downloadable Data
Distribution liability:
Although these data have been processed successfully on a computer system at the Idaho State Climate Services office, no warranty, expressed or implied, is made regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.
Distribution Point of Contact
Contact information for the individual or organization distributing the data.
Organization: Idaho State Climate Services
Phone: 208.885.7004
Email: climate@uidaho.edu
Address type: mailing address
Address:
Idaho State Climate Services
Address:
Biological and Agricultural Engineering Department
Address:
Univeristy of Idaho
City: Moscow
State or Province: Idaho
Postal code: 83844-0904
Standard Order Process
Common ways in which data may be obtained.
Digital form:
Format name: ESRI GRID File Download
Size of the data: 0.276
Transfer size: 0.276
Digital transfer option:
Online option:
Digital form:
Format name: ESRI Map Service Layer REST Endpoint (HTML)
Digital transfer option:
Digital form:
Format name: ESRI Layer File (.lyr) [View in ArcMap]
Digital transfer option:
Online option:
Computer information:
Digital form:
Format name: OGC WMS GetCapabilities File
Digital transfer option:
Digital form:
Format name: OGC WCS GetCapabilities File
Digital transfer option:
Digital form:
Format name: OGC KML Network Link [View in Google Earth]
Digital transfer option:
Digital form:
Format name: ESRI Map Service REST Endpoint (JSON)
Digital transfer option:
Digital form:
Format name: ESRI Map Service Layer REST Endpoint (JSON)
Digital transfer option:
Digital form:
Format name: ESRI Map Service SOAP Endpoint (WSDL)
Digital transfer option:
Fees: None
Metadata Reference
Metadata Date
Dates associated with creating, updating and reviewing the metadata.
Last updated: 20110406
Language of metadata: en
Metadata Point of Contact
Contact information for the individual or organization responsible for the metadata information.
Organization: Idaho State Climate Services
Person: Staff
Phone: 208.885.7004
Email: bgodfrey@uidaho.edu
Address type: mailing address
Address:
State Climate Services
Address:
Biological and Agricultural Engineering Department
Address:
University of Idaho
City: Moscow
State or Province: Idaho
Postal code: 83844-0904
Metadata Standards
Description of the metadata standard used to document the data and reference to any additional extended profiles to the standard used by the metadata producer.
Standard name: FGDC Content Standards for Digital Geospatial Metadata
Standard version: FGDC-STD-001-1998
Time convention: local time
Metadata profiles defining additonal information:
Profile: ESRI Metadata Profile
FGDC Plus Metadata Stylesheet
Stylesheet: FGDC Plus Stylesheet
File name: FGDC Plus.xsl
Version: 2.0
Description: This metadata is displayed using the FGDC Plus Stylesheet, which is an XSL template that can be used with ArcGIS software to display metadata. It displays metadata elements defined in the Content Standard for Digital Geospatial Metadata (CSDGM) - aka FGDC Standard, the ESRI Profile of CSDGM, the Biological Data Profile of CSDGM, and the Shoreline Data Profile of CSDGM. CSDGM is the US Federal Metadata standard. The Federal Geographic Data Committee originally adopted the CSDGM in 1994 and revised it in 1998. According to Executive Order 12096 all Federal agencies are ordered to use this standard to document geospatial data created as of January, 1995. The standard is often referred to as the FGDC Metadata Standard and has been implemented beyond the federal level with State and local governments adopting the metadata standard as well. The Biological Data Profile broadens the application of the CSDGM so that it is more easily applied to biological data that are not explicitly geographic (laboratory results, field notes, specimen collections, research reports) but can be associated with a geographic location. Includes taxonomical vocabulary. The Shoreline Data Profile addresses variability in the definition and mapping of shorelines by providing a standardized set of terms and data elements required to support metadata for shoreline and coastal data sets. The FGDC Plus Stylesheet includes the Dublin Core Metadata Element Set. It supports W3C DOM compatible browsers such as IE7, IE6, Netscape 7, and Mozilla Firefox. It is in the public domain and may be freely used, modified, and redistributed. It is provided "AS-IS" without warranty or technical support.
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