Legates Surface and Ship Observations of Precipitation 0.5 x 0.5 degree V1 (RAIN_LEGATES) at GES DISCEntry ID: RAIN_LEGATES_1
Abstract: The Legates Surface and Shipboard Rain Gauge Observations data set consists of a global climatology of monthly mean precipitation values. A global climatology of mean monthly precipitation was developed using traditional land-based gauge measurements as well as extrapolations of oceanic precipitation from coastal and island observations. Data were obtained from a variety of source archives. These ... data were screened for coding errors, merged, and redundant stations were removed. The resulting data base contains 24,635 independent terrestrial station records and 2223 oceanic gridpoint estimates.
Precipitation gauge catches, however, are known to underestimate actual precipitation. Errors in the gauge catch result from wind-field deformation above the orifice of the gauge, wetting losses, and evaporation from the gauge and amount globally to nearly 8, 2, and 1 percent of the catch, respectively. A procedure was developed to estimate these errors and was used to obtain better estimates of global precipitation. Spatial variations in gauge type, air temperature, wind speed, and natural vegetation have been interpolated to the nodes of a 0.5 degrees of latitude by 0.5 degrees of longitude lattice using a spherically-based interpolation algorithm.
The data set is used to validate general circulation model simulations of the present-day precipitation climate, for ground-based comparison with satellite-derived precipitation estimates, and as a basis for global water balance studies.
Data Set Citation
Dataset Originator/Creator: Legates, D.
Dataset Title: Legates Surface and Ship Observations of Precipitation 0.5 x 0.5 degree V1
Dataset Series Name: RAIN_LEGATES
Dataset Release Date: 2011-04-25T00:00:00.000Z
Dataset Release Place: Greenbelt, MD, USA
Dataset Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
Data Presentation Form: Digital Science DataOnline Resource: https://disc.gsfc.nasa.gov/datacollection/RAIN_LEGATES_1.html
Start Date: 1920-01-01Stop Date: 1980-12-31
Data Set Progress
Distribution Media: Online Archive
Distribution Size: 5.4 MB
Distribution Format: ASCII
Phone: (302) 831-4920
Email: legates at udel.edu
Department of Geography University of Delaware
Province or State: DE
Postal Code: 19711
Role: METADATA AUTHOR
Email: dana.ostrenga at nasa.gov
Code 610.2 Bldg 32 Rm S151 NASA Goddard Space Flight Center
Province or State: MD
Postal Code: 21230
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2015-06-22
Last DIF Revision Date: 2018-11-26