Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process
The use of satellite precipitation products can overcome the limitations of rain gauges in flood hazard mapping for mitigation purposes. Hence, this study aims to evaluate the capabilities of three global precipitation measurement (GPM) integrated multisatellite retrievals for GPM (IMERG) products i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/12/2195 |
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| author | Nurul Syakira Mou Leong Tan Zed Zulkafli Fei Zhang Fredolin Tangang Chun Kiat Chang Wan Mohd Muhiyuddin Wan Ibrahim Mohd Hilmi P. Ramli |
| author_facet | Nurul Syakira Mou Leong Tan Zed Zulkafli Fei Zhang Fredolin Tangang Chun Kiat Chang Wan Mohd Muhiyuddin Wan Ibrahim Mohd Hilmi P. Ramli |
| author_sort | Nurul Syakira |
| collection | DOAJ |
| description | The use of satellite precipitation products can overcome the limitations of rain gauges in flood hazard mapping for mitigation purposes. Hence, this study aims to evaluate the capabilities of three global precipitation measurement (GPM) integrated multisatellite retrievals for GPM (IMERG) products in tropical flood hazard mapping in the Kelantan River Basin (KRB), Malaysia, using the GIS-based analytic hierarchy process (AHP) method. In addition to the precipitation factor, another eleven factors that contribute to flooding in the KRB were included in the AHP method. The findings demonstrated that the spatial pattern and percentage area affected by floods simulated under the IMERG-Early (IMERG-E), IMERG-Late (IMERG-L), and IMERG-Final (IMERG-F) products did not differ significantly. The receiver operating characteristics curve analysis showed that all three IMERG products performed well in generating flood hazard maps, with area under the curve values greater than 0.8. Almost all the recorded historical floods were placed in the moderate-to-very-high flood hazard areas, with only 1–2% found in the low flood hazard areas. The middle and lower parts of the KRB were identified as regions of “very high” and “high” hazard levels that require particular attention from local stakeholders. |
| first_indexed | 2024-03-11T01:49:53Z |
| format | Article |
| id | doaj.art-3d4015f21ca24921a65be0c1ddbf6584 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T01:49:53Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-3d4015f21ca24921a65be0c1ddbf65842023-11-18T13:04:37ZengMDPI AGWater2073-44412023-06-011512219510.3390/w15122195Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy ProcessNurul Syakira0Mou Leong Tan1Zed Zulkafli2Fei Zhang3Fredolin Tangang4Chun Kiat Chang5Wan Mohd Muhiyuddin Wan Ibrahim6Mohd Hilmi P. Ramli7GeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, Gelugor 11800, Penang, MalaysiaGeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, Gelugor 11800, Penang, MalaysiaDepartment of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, MalaysiaCollege of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, ChinaDepartment of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaRiver Engineering and Urban Drainage Research Centre (REDAC), Universiti Sains Malaysia, Engineering Campus, Nibong Tebal 14300, Penang, MalaysiaGeoInformatic Unit, Geography Section, School of Humanities, Universiti Sains Malaysia, Gelugor 11800, Penang, MalaysiaAir Syarikat Sdn Bhd, Lot 188, Jln Tuan Guru Nik Abdul Aziz, Kota Bharu 15050, Kelantan, MalaysiaThe use of satellite precipitation products can overcome the limitations of rain gauges in flood hazard mapping for mitigation purposes. Hence, this study aims to evaluate the capabilities of three global precipitation measurement (GPM) integrated multisatellite retrievals for GPM (IMERG) products in tropical flood hazard mapping in the Kelantan River Basin (KRB), Malaysia, using the GIS-based analytic hierarchy process (AHP) method. In addition to the precipitation factor, another eleven factors that contribute to flooding in the KRB were included in the AHP method. The findings demonstrated that the spatial pattern and percentage area affected by floods simulated under the IMERG-Early (IMERG-E), IMERG-Late (IMERG-L), and IMERG-Final (IMERG-F) products did not differ significantly. The receiver operating characteristics curve analysis showed that all three IMERG products performed well in generating flood hazard maps, with area under the curve values greater than 0.8. Almost all the recorded historical floods were placed in the moderate-to-very-high flood hazard areas, with only 1–2% found in the low flood hazard areas. The middle and lower parts of the KRB were identified as regions of “very high” and “high” hazard levels that require particular attention from local stakeholders.https://www.mdpi.com/2073-4441/15/12/2195flood hazardmulticriteria decision making (MCDM)analytical hierarchy process (AHP)satellite precipitation products (SPPs)global precipitation measurement (GPM)climate change |
| spellingShingle | Nurul Syakira Mou Leong Tan Zed Zulkafli Fei Zhang Fredolin Tangang Chun Kiat Chang Wan Mohd Muhiyuddin Wan Ibrahim Mohd Hilmi P. Ramli Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process Water flood hazard multicriteria decision making (MCDM) analytical hierarchy process (AHP) satellite precipitation products (SPPs) global precipitation measurement (GPM) climate change |
| title | Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process |
| title_full | Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process |
| title_fullStr | Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process |
| title_full_unstemmed | Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process |
| title_short | Assessment of Three GPM IMERG Products for GIS-Based Tropical Flood Hazard Mapping Using Analytical Hierarchy Process |
| title_sort | assessment of three gpm imerg products for gis based tropical flood hazard mapping using analytical hierarchy process |
| topic | flood hazard multicriteria decision making (MCDM) analytical hierarchy process (AHP) satellite precipitation products (SPPs) global precipitation measurement (GPM) climate change |
| url | https://www.mdpi.com/2073-4441/15/12/2195 |
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