Discrepancy between Gauges and Satellite Estimates of Rainfall in Equatorial Africa
作者： Jeffrey R. McCollum , Arnold Gruber , Mamoudou B. Ba
DOI: 10.1175/1520-0450-39.5.666
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摘要: Abstract The Global Precipitation Climatology Project (GPCP) satellite estimates have approximately twice the magnitude of produced from rain gauges used by GPCP in central equatorial Africa. Different possible explanations are identified and investigated. first is that there may not be enough area to provide accurate rainfall for comparisons with estimates. A comparison time-averaged gauge estimate a long-term (over 40 yr) climatology indicates similar averages, suggesting analysis underestimating rainfall. Two other related physical properties air masses this region studied. Evidence literature effective radii cloud droplets suggests an abundance aerosols Africa, resulting condensation nuclei...
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sci-hub.se 参考文章(23)
B. Rudolf, H. Hauschild, W. Rueth, U. Schneider, Terrestrial Precipitation Analysis: Operational Method and Required Density of Point Measurements Global Precipitations and Climate Change. pp. 173- 186 ,(1994) , 10.1007/978-3-642-79268-7_10
George J. Huffman, Estimates of Root-Mean-Square Random Error for Finite Samples of Estimated Precipitation Journal of Applied Meteorology. ,vol. 36, pp. 1191- 1201 ,(1997) , 10.1175/1520-0450(1997)036<1191:EORMSR>2.0.CO;2
Yoram J. Kaufman, Teruyuki Nakajima, Effect of Amazon Smoke on Cloud Microphysics and Albedo-Analysis from Satellite Imagery Journal of Applied Meteorology. ,vol. 32, pp. 729- 744 ,(1993) , 10.1175/1520-0450(1993)032<0729:EOASOC>2.0.CO;2
Daniel Rosenfeld, Garik Gutman, Retrieving microphysical properties near the tops of potential rain clouds by multispectral analysis of AVHRR data Atmospheric Research. ,vol. 34, pp. 259- 283 ,(1994) , 10.1016/0169-8095(94)90096-5
Sharon E. Nicholson, An Overview of African Rainfall Fluctuations of the Last Decade Journal of Climate. ,vol. 6, pp. 1463- 1466 ,(1993) , 10.1175/1520-0442(1993)006<1463:AOOARF>2.0.CO;2
Teruyuki Nakajima, Michael D. King, Determination of the Optical Thickness and Effective Particle Radius of Clouds from Reflected Solar Radiation Measurements. Part I: Theory Journal of the Atmospheric Sciences. ,vol. 47, pp. 1878- 1893 ,(1990) , 10.1175/1520-0469(1990)047<1878:DOTOTA>2.0.CO;2
David B. Johnson, The Influence of Cloud-Base Temperature and Pressure on Droplet Concentration Journal of the Atmospheric Sciences. ,vol. 37, pp. 2079- 2085 ,(1980) , 10.1175/1520-0469(1980)037<2079:TIOCBT>2.0.CO;2
Thomas T. Wilheit, Alfred T. C. Chang, Long S. Chiu, Retrieval of Monthly Rainfall Indices from Microwave Radiometric Measurements Using Probability Distribution Functions Journal of Atmospheric and Oceanic Technology. ,vol. 8, pp. 118- 136 ,(1991) , 10.1175/1520-0426(1991)008<0118:ROMRIF>2.0.CO;2
George J. Huffman, Robert F. Adler, Philip Arkin, Alfred Chang, Ralph Ferraro, Arnold Gruber, John Janowiak, Alan McNab, Bruno Rudolf, Udo Schneider, The Global Precipitation Climatology Project (GPCP) combined precipitation dataset Bulletin of the American Meteorological Society. ,vol. 78, pp. 5- 20 ,(1997) , 10.1175/1520-0477(1997)078<0005:TGPCPG>2.0.CO;2
George J. Huffman, Robert F. Adler, Bruno Rudolf, Udo Schneider, Peter R. Keehn, Global Precipitation Estimates Based on a Technique for Combining Satellite-Based Estimates, Rain Gauge Analysis, and NWP Model Precipitation Information Journal of Climate. ,vol. 8, pp. 1284- 1295 ,(1995) , 10.1175/1520-0442(1995)008<1284:GPEBOA>2.0.CO;2