Assessing objective techniques for gauge‐based analyses of global daily precipitation

Three objective techniques used to obtain gauge‐based daily precipitation analyses over global land areas are assessed. The objective techniques include the inverse‐distance weighting algorithms of Cressman (1959) and Shepard (1968), and the optimal interpolation (OI) method of Gandin (1965). Intercomparisons and cross‐validation tests are conducted to examine their performance over various parts of the globe where station network densities are different. The gauge data used in the examinations are quality controlled daily precipitation reports from roughly 16,000 stations over the global land areas that have been collected by the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center…

• NS
  National Science Foundation

  Award: 1600012
• UD
  U.S. Department of Energy
• UE
  U.S. Environmental Protection Agency
• OO
  Office of Research and Development
• UO
  University of Michigan
• CS
  Commonwealth Scientific and Industrial Research Organisation
• KM
  Korea Meteorological Administration
• TU
  Tsinghua University
• NO
  National Oceanic and Atmospheric Administration

  Award: NA13OAR4310142
• JA
  Japan Agency for Marine-Earth Science and Technology