Service Description: Historical U.S. Monthly Average Temperature and Precipitation from Global Historical Climate Network Daily (GHCND) from 1981 through 2010.
Service ItemId: b8df6517ceac42af9ab483089296ed04
Has Versioned Data: false
Max Record Count: 10000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: True
Supports Shared Templates: False
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Description: This point layer represents station specific statistical monthly summaries for of temperature (daily means, minimums, and maximums) and precipitation (mean sum, lowest, and highest) for the period including January 1981 through December 2010. The data were compiled at Esri from publicly available sources hosted and administered by NOAA. The following process was used to produce this dataset:
1. Download the most current list of stations from ftp.ncdc.noaa.gov/pub/data/ghcn/daily/ghcnd-stations.txt. Import this into Microsoft Excel and save as CSV. In ArcGIS, import the CSV as a geodatabase table and use the XY Event layer tool to locate each point. Using a detailed U.S. boundary extract the points that fall within the 50 U.S. States, the District of Columbia, and Puerto Rico.
2. Using Python with DA.UpdateCursor and urllib2 access the ACIS Web Services API to determine whether each station had at least 50 monthly values of temperature data for each station. Delete the other stations. Using Python add the necessary field names and acquire all monthly values for the remaining stations.
3. Using Python Add fields and convert the standard values to metric values so both would be present. Thus, there are four sets of monthly data in this dataset:
a. Monthly means, mins, and maxes of daily temperatures - degrees Fahrenheit.
b. Monthly mean of monthly sums of precipitation and the level of precipitation that was the minimum and maximum during the period 1981 to 2010 - mm.
c. Temperatures in 3a. in degrees Celcius.
d. Precipitation levels in 3b in Inches.
Citations:
Source data for station locations: Menne, M.J., I. Durre, B. Korzeniewski, S. McNeal, K. Thomas, X. Yin, S. Anthony, R. Ray, R.S. Vose, B.E.Gleason, and T.G. Houston, 2012: Global Historical Climatology Network - Daily (GHCN-Daily), Version 3. [indicate subset used following decimal, e.g. Version 3.24]. Accessed online on 1/18/2019 at ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/ghcnd-stations.txt
Source for monthly averages for precipitation and temperature: Applied Climate Information System (ACIS). ACIS Web Services API: Accessed 1/18/2019 at http://www.rcc-acis.org/docs_webservices.html. The Applied Climate Information System (ACIS) was developed and is maintained by the NOAA Regional Climate Centers (RCCs). It was designed to manage the complex flow of information from climate data collectors to the end users of climate data information. The main purpose of ACIS is to alleviate the burden of climate information management for people who use climate information to make management decisions.
Copyright Text: Esri, GHCND, and ACIS
Spatial Reference: 4326 (4326)
Initial Extent:
XMin: -195.33974739188
YMin: 37.9017014000913
XMax: 200.830936245894
YMax: 154.716682057938
Spatial Reference: 4326 (4326)
Full Extent:
XMin: -176.65
YMin: 17.6997000000001
XMax: 179.28333
YMax: 71.3213000000001
Spatial Reference: 4326 (4326)
Units: esriDecimalDegrees
Child Resources:
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Supported Operations:
Query
ConvertFormat
Get Estimates
Create Replica
Synchronize Replica
Unregister Replica