Abstract
Two satellite rainfall estimation algorithms, CMORPH and TMPA, are evaluated over two mountainous regions at daily accumulation and spatial resolution 0.25°. The evaluated TMPA products are TRMM-3B42 and TRMM-3B42RT. The first of the two validations region is located over the Ethiopian highlands in the Horn of Africa. The second is located over the highlands of Columbia in South America. Both sites are characterized by a very complex terrain. Relatively dense station networks over the two sites are used to validate the satellite products. The correlation coefficients between the reference gauge data and the satellite products were found to be low. Besides, the products underestimate both the occurrence and amount of rainfall over both validation sites. These were attributed, at least partly, to orographic warm rain process over the two regions. The performance over Colombia was better compared to that for Ethiopia. And CMORPH has exhibited better performance as compared to the two TRMM products.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Dinku, T., P. Ceccato, E. Grover-Kopec, M. Lemma, S. J. Connor, and C. F. Ropelewski, 2007: Validation of satellite rainfall products over East Africa's complex topography. International Journal of Remote Sensing, 28(7), 1503–1526.
Dinku, T., S. Chidzambwa, P. Ceccato, S. J. Connor, and C. F. Ropelewski, 2008: Validation of high-resolution satellite rainfall products over complex terrain in Africa. International Journal of Remote Sensing, 29(14), 4097–4110.
Grimes, D. I. F., E. Pardo, and R. Bonifacio, 1999: Optimal areal rainfall estimation using raingauges and satellite date. Journal of Hydrology, 222, 93–108.
Gruber, A. and V. Levizzani, 2008: Assessment of Global Precipitation Products, WMO/TD-NO. 1430, (Available online at: http://www.isao.bo.cnr.it/~meteosat/papers/AssessmentGlobalPrecipitation-2008.pdf)
Herman, A., V. B. Kumar, P. A. Arkin, and J. V. Kousky, 1997: Objectively determined 10-day African rainfall estimates created for famine early warning. International Journal of Remote Sensing, 18(10), 2147–2159.
Huffman, G. J., R. F. Adler, D. T. Bolvin, G. Gu, E. J. Nelkin, K. P. Bowman, Y. Hong, E. F. Stocker, and D. B. Wolf, 2007: The TRMM multisatellite precipitation analysis (TMPA): Quasi-global, multiyear, combined-sensor precipitation estimates at fine scales. Journal of Hydrometeorology, 8, 38–55.
Hurtado, G., 2005: Precipitation in Colombia. Climate Atlas of Colombia. IDEAM Bogotá, Colombia
Joyce, R. J., J. E. Janowiak, P. A. Arkin, and P. Xie, 2004: CMORPH: A method that produces global precipitation estimates from passive microwave and infrared data at high spatial and temporal resolution. Journal of Hydrometeorology, 5, 487–503.
Levizzani, V., R. Amorati, and F. Meneguzzo, 2002: A Review of Satellite-based Rainfall Estimation Methods, Consiglio Nazionale delle Ricerche Istituto di Scienze dell'Atmosfera e del Clima, (Available online at http://www.isao.bo.cnr.it/~meteosat/papers/MUSIC-Rep-Sat-Precip-6.1.pdf)
Levizzani, V., Bauer, P., and Turk J. F. (Eds.),, 2007: Measuring Precipitation from space: EURAINSAT and the Future. Springer, New York, 724 pp..
Schneider, U., T. Fuchs, A. Meyer-Christoffer, and B. Rudolf 2008: Global precipitation analysis products of the GPCC. Available online at: (http://gpcc.dwd.de).
Thorne, V., P. Coakeley, D. Grimes, and G. Dugdale, 2001: Comparison of TAMSAT and CPC rainfall estimates with raingauges, for southern Africa. Int. J. Remote Sensing, 22(10), 1951–1974.
Xie, P., Y. Yarosh, T. Love, J. Janowiak, and A. Arkin 2002: A real-time daily precipitation analysis over southern Asia. Preprints, 16th Conf. of the Hydro., Orlando, FL, Amer. Meteor. Soc.
Acknowledgements
We are very grateful to the National Meteorological Agency (NMA) of Ethiopia, and the Meteorological Service of Colombia (IDEAM) for providing the rain gauge data free of any charge.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media B.V.
About this chapter
Cite this chapter
Dinku, T., Connor, S.J., Ceccato, P. (2010). Comparison of CMORPH and TRMM-3B42 over Mountainous Regions of Africa and South America. In: Gebremichael, M., Hossain, F. (eds) Satellite Rainfall Applications for Surface Hydrology. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-2915-7_11
Download citation
DOI: https://doi.org/10.1007/978-90-481-2915-7_11
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-2914-0
Online ISBN: 978-90-481-2915-7
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)