论文信息 - Correction of synoptic precipitation observations due to systematic measuring errors with special regard to precipitation phases

Correction of synoptic precipitation observations due to systematic measuring errors with special regard to precipitation phases

Abstract A recently developed method for event-based daily bias-correction of synoptic precipitation observations regarding systematic measuring errors was transfered at the Global Precipitation Climatology Centre (GPCC) from regional to global applications. Using the reported present weather, an analysis based on more than 600 000 global synoptic data from 16 winter months was done, which made it possible to relate air temperature and dew point temperature to the probable distribution of liquid, solid and mixed precipitation phase. Based on this information, synoptic precipitation observations can be corrected regarding systematic measuring errors on a daily resolution, which makes the estimation of extreme precipitation events more reliable.

[1] Dochul Yang,et al. WMO Solid Precipitation Measurement Intercomparison Final Report , 1998 .

[2] U. Schneider,et al. Global precipitation estimates based on a technique for combining satellite-based estimates, rain gauge analysis, and NWP model precipitation information , 1995 .

[3] U. Schneider,et al. Terrestrial Precipitation Analysis: Operational Method and Required Density of Point Measurements , 1994 .

[4] David R. Legates,et al. Documenting and detecting long-term precipitation trends : where we are and what should be done , 1995 .

[5] Grant W. Petty,et al. Frequencies and Characteristics of Global Oceanic Precipitation from Shipboard Present-Weather Reports , 1995 .

[6] F. Rubel,et al. Correction of Daily Rain Gauge Measurements in the Baltic Sea Drainage Basin , 1999 .

[7] U. Schneider,et al. Compensation for the systematic error in precipitation measurement , 1992 .

[8] I. Hanssen‐Bauer,et al. Increased Precipitation in the Norwegian Arctic: True or False? , 2000 .

[9] D. Legates,et al. Mean seasonal and spatial variability in gauge‐corrected, global precipitation , 1990 .

[10] Franz Rubel,et al. Bias correction of global daily rain gauge measurements , 2001 .

[11] F. Rubel,et al. BALTEX 1/6-degree daily precipitation climatology 1996–1998 , 2001 .