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NASA Project Detail - MEaSURES

Next-Generation Global Precipitation Climatology Project (GPCP) Data Products

Introduction

This project will generate PERSIANN precipitation estimation supporting the next generation (Version 3) of GPCP merged precipitation products, which will involve a shift to new data streams, advanced merger techniques, and finer time and space resolutions. CHRS investigators will develop the techniques to generate precipitation analysis at 0.5-degree daily scale and provide quality control and validation of the products. The 0.5-degree daily produce will cover the period 1982-present for daily product.

The objectives for this project are to:

  1. Finalize PERSIANN working with GridSat-B1 with and without routine PMW calibration.
  2. Revise observational dataset schemes where the test year reveals issues of procedure or quality and begin routine updates.
  3. Test PERSIANN data set during the pre-DMSP era and evaluate workability of approaches and quality of resulting data sets.
  4. Ensure that the PERSIANN data set is as current (but complete and stable) as possible.