Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation
Rainfall erosivity (RE) is a significant indicator of erosion capacity. The application of Tropical Rainfall Measuring Mission (TRMM) rainfall products to deal with RE estimation has not received much attention. It is not clear which temporal resolution of TRMM data is most suitable. This study quan...
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MDPI AG
2020-11-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/12/23/3924 |
| _version_ | 1797546248982495232 |
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| author | Xianghu Li Zhen Li Yaling Lin |
| author_facet | Xianghu Li Zhen Li Yaling Lin |
| author_sort | Xianghu Li |
| collection | DOAJ |
| description | Rainfall erosivity (RE) is a significant indicator of erosion capacity. The application of Tropical Rainfall Measuring Mission (TRMM) rainfall products to deal with RE estimation has not received much attention. It is not clear which temporal resolution of TRMM data is most suitable. This study quantified the RE in the Poyang Lake basin, China, based on TRMM 3B42 3-hourly, daily, and 3B43 monthly rainfall data, and investigated their suitability for estimating RE. The results showed that TRMM 3-hourly product had a significant systematic underestimation of monthly RE, especially during the period of April–June for the large values. The TRMM 3B42 daily product seems to have better performance with the relative bias of 3.0% in summer. At the annual scale, TRMM 3B42 daily and 3B43 monthly data had acceptable accuracy, with mean error of 1858 and −85 MJ∙mm/ha∙h and relative bias of 18.3% and −0.85%, respectively. A spatial performance analysis showed that all three TRMM products generally captured the overall spatial patterns of RE, while the TRMM 3B43 product was more suitable in depicting the spatial characteristics of annual RE. This study provides valuable information for the application of TRMM products in mapping RE and risk assessment of soil erosion. |
| first_indexed | 2024-03-10T14:26:25Z |
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| id | doaj.art-a10a3f48a712439fa24a73d128048fb0 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T14:26:25Z |
| publishDate | 2020-11-01 |
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| record_format | Article |
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| spelling | doaj.art-a10a3f48a712439fa24a73d128048fb02023-11-20T22:56:23ZengMDPI AGRemote Sensing2072-42922020-11-011223392410.3390/rs12233924Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity EstimationXianghu Li0Zhen Li1Yaling Lin2Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, ChinaKey Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, ChinaRainfall erosivity (RE) is a significant indicator of erosion capacity. The application of Tropical Rainfall Measuring Mission (TRMM) rainfall products to deal with RE estimation has not received much attention. It is not clear which temporal resolution of TRMM data is most suitable. This study quantified the RE in the Poyang Lake basin, China, based on TRMM 3B42 3-hourly, daily, and 3B43 monthly rainfall data, and investigated their suitability for estimating RE. The results showed that TRMM 3-hourly product had a significant systematic underestimation of monthly RE, especially during the period of April–June for the large values. The TRMM 3B42 daily product seems to have better performance with the relative bias of 3.0% in summer. At the annual scale, TRMM 3B42 daily and 3B43 monthly data had acceptable accuracy, with mean error of 1858 and −85 MJ∙mm/ha∙h and relative bias of 18.3% and −0.85%, respectively. A spatial performance analysis showed that all three TRMM products generally captured the overall spatial patterns of RE, while the TRMM 3B43 product was more suitable in depicting the spatial characteristics of annual RE. This study provides valuable information for the application of TRMM products in mapping RE and risk assessment of soil erosion.https://www.mdpi.com/2072-4292/12/23/3924satellite-based rainfall productTRMMtemporal resolutionrainfall erosivity |
| spellingShingle | Xianghu Li Zhen Li Yaling Lin Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation Remote Sensing satellite-based rainfall product TRMM temporal resolution rainfall erosivity |
| title | Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation |
| title_full | Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation |
| title_fullStr | Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation |
| title_full_unstemmed | Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation |
| title_short | Suitability of TRMM Products with Different Temporal Resolution (3-Hourly, Daily, and Monthly) for Rainfall Erosivity Estimation |
| title_sort | suitability of trmm products with different temporal resolution 3 hourly daily and monthly for rainfall erosivity estimation |
| topic | satellite-based rainfall product TRMM temporal resolution rainfall erosivity |
| url | https://www.mdpi.com/2072-4292/12/23/3924 |
| work_keys_str_mv | AT xianghuli suitabilityoftrmmproductswithdifferenttemporalresolution3hourlydailyandmonthlyforrainfallerosivityestimation AT zhenli suitabilityoftrmmproductswithdifferenttemporalresolution3hourlydailyandmonthlyforrainfallerosivityestimation AT yalinglin suitabilityoftrmmproductswithdifferenttemporalresolution3hourlydailyandmonthlyforrainfallerosivityestimation |