Precipitation

Plans for deriving a high-quality integrated system of precipitation products are underway. The Programme for the Evaluation of High Resolution Precipitation Products (PEHRPP) will yield a hypothesis-based assessment of efforts to combine precipitation data from in-situ, remote sensing (passive microwave and active radar), and model reanalysis. The project will proceed in 4 suites:

Suite I:

• statistical comparisons, validating data from 8 sites against national rain gauge and radar networks

Suite II:

• comparison studies focusing on high quality fine resolution time series over select limited regions from CEOP and TAO/TRITON rain gauges

Suite III:

• analysis of high quality data sets from NAME and KWAJEX, combining radar (from NCAR S-Pol and INEMET) and rain gauge data

Suite IV:

• big picture analysis:
• validation of large-scale precipitation quantities
• evaluation of GPCP and CMAP
• observations of stream flow and water budgets
• identify artifacts not evident in statistics of Suites 1-3

Reports & Presentations:

• Report to International Precipitation Working Group (IPWG) on the Integrated Program to Evaluate High Resolution Precipitation Products (PHRPP) (October 2006)
• Presentation to IGOS-P (May 2006)