Assessment of satellite precipitation estimates over the slopes of the subtropical Andes
A validation of four satellite daily precipitation estimates at a spatial resolution of 0.25° is performed over the subtropical Andes, an area of highly complex topography: The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA, 3B42 V7 and RT), the Climate Predic...
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v190_n_p43_Hobouchian http://hdl.handle.net/20.500.12110/paper_01698095_v190_n_p43_Hobouchian |
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paper:paper_01698095_v190_n_p43_Hobouchian2023-06-08T15:18:33Z Assessment of satellite precipitation estimates over the slopes of the subtropical Andes Salio, Paola Veronica García Skabar, Yanina Precipitation Satellite products Topography Precipitation (chemical) Rain Rain gages Satellites Topography Tropics Climate prediction centers Daily precipitations Global precipitation measurements Intense precipitation Passive microwave data Satellite precipitation estimates Satellite products Tropical rainfall measuring missions Precipitation (meteorology) error analysis precipitation assessment satellite data satellite imagery slope spatial resolution topographic effect Andes A validation of four satellite daily precipitation estimates at a spatial resolution of 0.25° is performed over the subtropical Andes, an area of highly complex topography: The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA, 3B42 V7 and RT), the Climate Prediction Center Morphing technique (CMORPH) and the Hydro-Estimator (HYDRO). Remote mountainous regions represent a major challenge for these satellite data products and for studies examining their quality with surface data. For the assessment of the satellite products, a period of seven years from January 1st 2004 to December 31st 2010 was considered. Different statistics were analyzed considering their variability in the study area and identifying their main differences between the warm and cold seasons. The results indicate a decrease in winter errors which coincides with the wet season over the windward side of the Andes. Also, a significant underestimation of precipitation is observed for all estimates throughout the period analyzed. The analysis with respect to terrain height shows a greater dependence of errors with topography for all the algorithms that combine infrared and passive microwave data, HYDRO providing the most stable result. The main limitations of the estimates associated with the type of precipitating event and their location relative to the orography are assessed. Finally, the analysis of two intense precipitation events is presented and allows the assessment of the latest advances in satellite derived estimates with the launch of the Global Precipitation Measurement. © 2017 Elsevier B.V. Fil:Salio, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:García Skabar, Y. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v190_n_p43_Hobouchian http://hdl.handle.net/20.500.12110/paper_01698095_v190_n_p43_Hobouchian |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Precipitation Satellite products Topography Precipitation (chemical) Rain Rain gages Satellites Topography Tropics Climate prediction centers Daily precipitations Global precipitation measurements Intense precipitation Passive microwave data Satellite precipitation estimates Satellite products Tropical rainfall measuring missions Precipitation (meteorology) error analysis precipitation assessment satellite data satellite imagery slope spatial resolution topographic effect Andes |
| spellingShingle |
Precipitation Satellite products Topography Precipitation (chemical) Rain Rain gages Satellites Topography Tropics Climate prediction centers Daily precipitations Global precipitation measurements Intense precipitation Passive microwave data Satellite precipitation estimates Satellite products Tropical rainfall measuring missions Precipitation (meteorology) error analysis precipitation assessment satellite data satellite imagery slope spatial resolution topographic effect Andes Salio, Paola Veronica García Skabar, Yanina Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| topic_facet |
Precipitation Satellite products Topography Precipitation (chemical) Rain Rain gages Satellites Topography Tropics Climate prediction centers Daily precipitations Global precipitation measurements Intense precipitation Passive microwave data Satellite precipitation estimates Satellite products Tropical rainfall measuring missions Precipitation (meteorology) error analysis precipitation assessment satellite data satellite imagery slope spatial resolution topographic effect Andes |
| description |
A validation of four satellite daily precipitation estimates at a spatial resolution of 0.25° is performed over the subtropical Andes, an area of highly complex topography: The Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA, 3B42 V7 and RT), the Climate Prediction Center Morphing technique (CMORPH) and the Hydro-Estimator (HYDRO). Remote mountainous regions represent a major challenge for these satellite data products and for studies examining their quality with surface data. For the assessment of the satellite products, a period of seven years from January 1st 2004 to December 31st 2010 was considered. Different statistics were analyzed considering their variability in the study area and identifying their main differences between the warm and cold seasons. The results indicate a decrease in winter errors which coincides with the wet season over the windward side of the Andes. Also, a significant underestimation of precipitation is observed for all estimates throughout the period analyzed. The analysis with respect to terrain height shows a greater dependence of errors with topography for all the algorithms that combine infrared and passive microwave data, HYDRO providing the most stable result. The main limitations of the estimates associated with the type of precipitating event and their location relative to the orography are assessed. Finally, the analysis of two intense precipitation events is presented and allows the assessment of the latest advances in satellite derived estimates with the launch of the Global Precipitation Measurement. © 2017 Elsevier B.V. |
| author |
Salio, Paola Veronica García Skabar, Yanina |
| author_facet |
Salio, Paola Veronica García Skabar, Yanina |
| author_sort |
Salio, Paola Veronica |
| title |
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| title_short |
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| title_full |
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| title_fullStr |
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| title_full_unstemmed |
Assessment of satellite precipitation estimates over the slopes of the subtropical Andes |
| title_sort |
assessment of satellite precipitation estimates over the slopes of the subtropical andes |
| publishDate |
2017 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v190_n_p43_Hobouchian http://hdl.handle.net/20.500.12110/paper_01698095_v190_n_p43_Hobouchian |
| work_keys_str_mv |
AT saliopaolaveronica assessmentofsatelliteprecipitationestimatesovertheslopesofthesubtropicalandes AT garciaskabaryanina assessmentofsatelliteprecipitationestimatesovertheslopesofthesubtropicalandes |
| _version_ |
1768543893979136000 |