Annual Mean Length of Freeze-Free Period, Arizona, 1961-1990
Originator
National Climatic Data Center (U.S.)
Publisher
National Climatic Data Center (U.S.)
Publication Date
1995-01-01T:00:00:00
Geospatial Data Presentation Form
mapDigital
Abstract
This element was computed using data from the National Climatic Data Center's Cooperative Summary of the Day (TD-3200) database (NCDC, 1995). The original data is in whole degrees Fahrenheit. This element is given as the number of whole days. The length of the freeze-free period was based on the difference between the median and mean dates, respectively, of the last 32 degree Fahrenheit temperature in spring (Element TEMP09) and the first 32 degree Fahrenheit temperature in autumn (Element TEMP10). If either element was designated "RARE FREEZE" the station was excluded from the database. If both elements were designated "NO FREEZE," then this element was designated the same. If only one element was designated "NO FREEZE," then the station was excluded. Daily minimum temperatures were the lowest observed temperatures for 24 hours ending at the time of observation for a given station. Data extracted for Arizona and 25 mile buffer.
Purpose
The Climate Atlas will serve the interests of commercial, industrial, agricultural, research, and educational institutions, as well as those from the general public. Its primary purpose is to show the normal spatial patterns for a variety of temperature, precipitation, snow, and other parameters. (stated on CD ROM) This datasets is made available to interested persons through the University of Arizona's instance of Open Geoportal. It has been provided to assist educators, students, researchers, and policy makers in mapping and/or analysis applications.
Temporal Extent
Time Period
Begin
1961-01-01T00:00:00
End
1990-12-31T00:00:00
Bounding Box
West
-115.484635
East
-108.4506
North
37.40196
South
31.183411
ISO Topic Category
climatologyMeteorologyAtmosphere
Theme Keyword
climatologyMeterologyAtmosphere
Theme Keyword Thesaurus
ISO 19115 Topic Category
Theme Keyword
Freeze-free period
Theme Keyword Thesaurus
Place Keyword
State of Arizona
Place Keyword Thesaurus
GNIS
Status
completed
Maintenance and Update Frequency
unknown
Language
eng
Point of Contact
Contact
National Climatic Data Center
Delivery Point
Federal Building
City
Asheville
Administrative Area
NC
Postal Code
28801-5001
Email
questions@ncdc.noaa.gov
Phone
828-271-4800
Spatial Reference Information
Reference System Identifier
Code
NAD83 (EPSG:4269)
Code Space
EPSG
Version
7.9
Data Quality Information
Lineage
Process Step
Description
Dataset renamed from TMP07B13.shp to Arizona_AnnMeanLengthFreezeFree_1961to1990.shp by Ben Hickson with the University of Arizona Library. Metadata fields corresponding the Open Geoportal Working Group Best Practices Guide (http://opengeoportal.org/working-groups/metadata/) were also updated.
