Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season
In the east Bay of Bengal (BoB), the precipitation maximum always lies near the eastern coast on the windward side of Mountain Araka Yoma in the summer monsoon season. In this study, different precipitation products are compared in terms of their representation of the offshore rainfall maximum featu...
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| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2015/806845 |
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| author | Li Qi Yuqing Wang |
| author_facet | Li Qi Yuqing Wang |
| author_sort | Li Qi |
| collection | DOAJ |
| description | In the east Bay of Bengal (BoB), the precipitation maximum always lies near the eastern coast on the windward side of Mountain Araka Yoma in the summer monsoon season. In this study, different precipitation products are compared in terms of their representation of the offshore rainfall maximum feature in this region. Climatologically, all products examined present similar rainfall distribution except for the CMAP. Significant discrepancies among different products are found in the interannual variation, as illustrated by the contrast features between 2002 and 2005. Based on the TRMM products (except for 3B42RT) and GPCP V1.2, the precipitation maximum occurred near the coast in 2002, while it was about 100–200 km offshore in 2005. However, this difference is not obvious in the GPCP V2.2 and TRMM 3B42RT products. Larger easterly vertical wind shear and warmer SST were present in 2005. Both favor stronger orographically-forced convective systems to propagate offshore, leading to the offshore rainfall maximum in 2005. Therefore, it is suggested that the TRMM 3B40RT, which is mainly based on passive microwave estimates, may be more reliable among different precipitation products in reflecting the precipitation feature in the coastal region of the east BoB. |
| format | Article |
| id | doaj-art-798401a22749407fb2f7e37e55b30467 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-798401a22749407fb2f7e37e55b304672025-02-03T06:11:29ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/806845806845Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon SeasonLi Qi0Yuqing Wang1Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaCollaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaIn the east Bay of Bengal (BoB), the precipitation maximum always lies near the eastern coast on the windward side of Mountain Araka Yoma in the summer monsoon season. In this study, different precipitation products are compared in terms of their representation of the offshore rainfall maximum feature in this region. Climatologically, all products examined present similar rainfall distribution except for the CMAP. Significant discrepancies among different products are found in the interannual variation, as illustrated by the contrast features between 2002 and 2005. Based on the TRMM products (except for 3B42RT) and GPCP V1.2, the precipitation maximum occurred near the coast in 2002, while it was about 100–200 km offshore in 2005. However, this difference is not obvious in the GPCP V2.2 and TRMM 3B42RT products. Larger easterly vertical wind shear and warmer SST were present in 2005. Both favor stronger orographically-forced convective systems to propagate offshore, leading to the offshore rainfall maximum in 2005. Therefore, it is suggested that the TRMM 3B40RT, which is mainly based on passive microwave estimates, may be more reliable among different precipitation products in reflecting the precipitation feature in the coastal region of the east BoB.http://dx.doi.org/10.1155/2015/806845 |
| spellingShingle | Li Qi Yuqing Wang Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season Advances in Meteorology |
| title | Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season |
| title_full | Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season |
| title_fullStr | Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season |
| title_full_unstemmed | Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season |
| title_short | Discrepancies in Different Precipitation Data Products in the Bay of Bengal during Summer Monsoon Season |
| title_sort | discrepancies in different precipitation data products in the bay of bengal during summer monsoon season |
| url | http://dx.doi.org/10.1155/2015/806845 |
| work_keys_str_mv | AT liqi discrepanciesindifferentprecipitationdataproductsinthebayofbengalduringsummermonsoonseason AT yuqingwang discrepanciesindifferentprecipitationdataproductsinthebayofbengalduringsummermonsoonseason |