The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation
Commercial microwave link (MWL) used by mobile telecom operators for data transmission can provide hydro-meteorologically valid rainfall estimates according to studies in the past decade. For the first time, this study investigated a new method, the MSG technique, that uses Meteosat Second Generatio...
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| Format: | Article |
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MDPI AG
2021-08-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/13/16/3274 |
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| author | Kingsley K. Kumah Joost C. B. Hoedjes Noam David Ben H. P. Maathuis H. Oliver Gao Bob Z. Su |
| author_facet | Kingsley K. Kumah Joost C. B. Hoedjes Noam David Ben H. P. Maathuis H. Oliver Gao Bob Z. Su |
| author_sort | Kingsley K. Kumah |
| collection | DOAJ |
| description | Commercial microwave link (MWL) used by mobile telecom operators for data transmission can provide hydro-meteorologically valid rainfall estimates according to studies in the past decade. For the first time, this study investigated a new method, the MSG technique, that uses Meteosat Second Generation (MSG) satellite data to improve MWL rainfall estimates. The investigation, conducted during daytime, used MSG optical (VIS0.6) and near IR (NIR1.6) data to estimate rain areas along a 15 GHz, 9.88 km MWL for classifying the MWL signal into wet–dry periods and estimate the baseline level. Additionally, the MSG technique estimated a new parameter, wet path length, representing the length of the MWL that was wet during wet periods. Finally, MWL rainfall intensity estimates from this new MSG and conventional techniques were compared to rain gauge estimates. The results show that the MSG technique is robust and can estimate gauge comparable rainfall estimates. The evaluation scores every three hours of RMSD, relative bias, and r<sup>2</sup> based on the entire evaluation period results of the MSG technique were 2.61 mm h<sup>−1</sup>, 0.47, and 0.81, compared to 2.09 mm h<sup>−1</sup>, 0.04, and 0.84 of the conventional technique, respectively. For convective rain events with high intensity spatially varying rainfall, the results show that the MSG technique may approximate the actual mean rainfall estimates better than the conventional technique. |
| first_indexed | 2024-03-10T08:25:09Z |
| format | Article |
| id | doaj.art-299f65e95f614787864464675579c104 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T08:25:09Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-299f65e95f614787864464675579c1042023-11-22T09:34:57ZengMDPI AGRemote Sensing2072-42922021-08-011316327410.3390/rs13163274The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second GenerationKingsley K. Kumah0Joost C. B. Hoedjes1Noam David2Ben H. P. Maathuis3H. Oliver Gao4Bob Z. Su5Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 7500 AE Enschede, The NetherlandsFaculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 7500 AE Enschede, The NetherlandsAtmosCell, Tel Aviv, IsraelFaculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 7500 AE Enschede, The NetherlandsThe School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, USAFaculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 7500 AE Enschede, The NetherlandsCommercial microwave link (MWL) used by mobile telecom operators for data transmission can provide hydro-meteorologically valid rainfall estimates according to studies in the past decade. For the first time, this study investigated a new method, the MSG technique, that uses Meteosat Second Generation (MSG) satellite data to improve MWL rainfall estimates. The investigation, conducted during daytime, used MSG optical (VIS0.6) and near IR (NIR1.6) data to estimate rain areas along a 15 GHz, 9.88 km MWL for classifying the MWL signal into wet–dry periods and estimate the baseline level. Additionally, the MSG technique estimated a new parameter, wet path length, representing the length of the MWL that was wet during wet periods. Finally, MWL rainfall intensity estimates from this new MSG and conventional techniques were compared to rain gauge estimates. The results show that the MSG technique is robust and can estimate gauge comparable rainfall estimates. The evaluation scores every three hours of RMSD, relative bias, and r<sup>2</sup> based on the entire evaluation period results of the MSG technique were 2.61 mm h<sup>−1</sup>, 0.47, and 0.81, compared to 2.09 mm h<sup>−1</sup>, 0.04, and 0.84 of the conventional technique, respectively. For convective rain events with high intensity spatially varying rainfall, the results show that the MSG technique may approximate the actual mean rainfall estimates better than the conventional technique.https://www.mdpi.com/2072-4292/13/16/3274commercial microwave linkMeteosat Second Generationrainfall intensityrain area detection |
| spellingShingle | Kingsley K. Kumah Joost C. B. Hoedjes Noam David Ben H. P. Maathuis H. Oliver Gao Bob Z. Su The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation Remote Sensing commercial microwave link Meteosat Second Generation rainfall intensity rain area detection |
| title | The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation |
| title_full | The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation |
| title_fullStr | The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation |
| title_full_unstemmed | The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation |
| title_short | The MSG Technique: Improving Commercial Microwave Link Rainfall Intensity by Using Rain Area Detection from Meteosat Second Generation |
| title_sort | msg technique improving commercial microwave link rainfall intensity by using rain area detection from meteosat second generation |
| topic | commercial microwave link Meteosat Second Generation rainfall intensity rain area detection |
| url | https://www.mdpi.com/2072-4292/13/16/3274 |
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