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ISLSCP II Gauge-Based Analyses of Daily Precipitation over Global Land Areas


DatasetISLSCP II Gauge-Based Analyses of Daily Precipitation over Global Land Areas
Release date2011-03-07
Time period1986-01-01 to 1995-12-31

Usage Metrics

CountEarliest DateLatest DateData Usage
Downloads17992011-06-092017-12-142138838 total files downloaded


The objective of this work was to construct a long-term data set of daily precipitation on half degree and one degree latitude/longitude grids over the global land areas. The analyses are defined by interpolating station observations from GTS (Global Telecommunications System) gauges using the algorithm of Shepard (1968). The algorithm of Shepard (1968) has been widely used to interpolate gauge observations of monthly, pentad, and daily precipitation (Rudolf 1993, Xie et al. 1996). This algorithm is used to interpolate the irregularly distributed station observations onto grid points. The weighting coefficients are inversely proportional to the gauge-grid point distance and are adjusted by a cosine function taking into account the directional isolation of each gauge relative to all other nearby gauges. There are 6 data files with this data set.

Dataset documentation


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Crosscite Citation Formatter
Xie, P.-P., J.E. Janowiak, F.G. Hall, G.J. Collatz, B.W. Meeson, S.O. Los, E.Brown De Colstoun, and D.R. Landis. 2011. ISLSCP II Gauge-Based Analyses of Daily Precipitation over Global Land Areas. ORNL DAAC, Oak Ridge, Tennessee, USA.

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Data Files

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Data File (Granule)File SizeDates 77.4MB 1986-01-01 to 1995-12-31 84.6MB 1986-01-01 to 1995-12-31 265.5MB 1986-01-01 to 1995-12-31 235.6MB 1986-01-01 to 1995-12-31 20.6MB 1986-01-01 to 1995-12-31 36.5MB 1986-01-01 to 1995-12-31

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Dataset has 2 companion files.

  • 0_gts_precip_daily_readme.txt
  • 1_gts_precip_daily_doc.pdf

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