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NASA SPoRT Project
Incorporating NASA spaceborne precipitation research products into National Mosaic QPE operational system for improved short-term weather prediction at Colorado Basin River Forecast Center
 
Background | Objective | Method | Case Study | Demo System | Publications
 
CASE Studies
I. Case 1: 04:00-06:55 UTC, 12/14/2012
 
Reflectivity Difference (dB) (left) and Height relative to freezing level (right)

 
Reflectivity (dBZ) before correction (left) and after correction (right)

 

 
II. Case 2: 00:00UTC (12/13/2011) - 06:55UTC(12/14/2011)
 
Reflectivity Difference (dB) (left) and Height relative to freezing level (right)

 
Reflectivity (dBZ) before correction (left) and after correction (right)

 

 
 
III. Radar-Gauge Comparison

Example of hourly rainfall comparison between radar QPE and raingauge measurements (12/13/2011).
 
 
IV. QPE Error Quantification

(Wen et al. 2013, Figure 6) QPE error ((radar-raingauge)/raingauge) in terms of range for the 8 December 2009 case (left) and for the 22 January case (right)
 
 
V. Comparison of QPE Correction

(Wen et al. 2013, Table 2) Statistical results of the three TRMM PR-based correction approaches. I is the rainfall rate calibration method; II is the rings-based range adjustment method; III is VPR-IE method. The method with the best performance according to the statistic is denoted in boldface.
 
 
 

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