دورية أكاديمية
Development of a GIS based hazard, exposure, and vulnerability analyzing method for monitoring drought risk at Karachi, Pakistan
| العنوان: | Development of a GIS based hazard, exposure, and vulnerability analyzing method for monitoring drought risk at Karachi, Pakistan |
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| المؤلفون: | Dilawar, Adil, Chen, Baozhang, Ashraf, Arshad, Alphonse, Kayiranga, Hussain, Yawar, Ali, Shoaib, Jinghong, Jiang, Shafeeque, Muhammad, Boyang, Song, Sun, Xiaohong, Hussain, Saddam |
| المصدر: | Geomatics, Natural Hazards and Risk, 13 (1), 1700 - 1720 (2022) |
| بيانات النشر: | Taylor and Francis Ltd., 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | drought risk, LST, LULC, NDVI, PDSI, Drought risks, Global economies, Hazard map, Land surface temperature, Land use/land cover, Normal difference vegetation index, Pakistan, Palmer drought severity indices, Vegetation index, Vulnerability maps, Environmental Science (all), Earth and Planetary Sciences (all), General Earth and Planetary Sciences, General Environmental Science, Physical, chemical, mathematical & earth Sciences, Earth sciences & physical geography, Physique, chimie, mathématiques & sciences de la terre, Sciences de la terre & géographie physique |
| الوصف: | Droughts have an adverse influence on agriculture, the environment, water supplies, and the global economy. The drought risk was computed using an integrated prospective approach: drought hazard, exposure, and vulnerability based on biophysical and socio-economic conditions over Karachi, Pakistan during 2000–2019. Drought hazard map (DHM) was created using annual Palmer drought severity Index (PDSI). Drought exposure map (DEM) was derived using population density and gross domestic product (GDP), as well as land surface temperature (LST), Normal difference vegetation index (NDVI), Night light images (NTL), land use land cover (LULC), and Distance to water were used for drought vulnerability map (DVM). An estimation of drought Risk (EDR) was derived by integrating layers of DHM, DEM, and DVM. Results showed that Central, South, and East regions of Karachi were at high risk, whereas the North East and North were less affected by the drought. The estimated average drought hazard (EDH) was 0.84, with minimum (maximum) value of 0.68 (1). Similarly, the average estimated drought exposure (estimated drought vulnerability) for EDE (EDV) was 0.27 (0.42), with the maximum value of 0.55 (0.84) and the minimum value of 0 (0). The drought risk assessment map (DRAM) shows that the average risk values is 0.18 while highest value is 0.36. Strategic Priority Research Program of Chinese Academy of Sciences National Key R&D Program of China |
| نوع الوثيقة: | journal article http://purl.org/coar/resource_type/c_6501 article peer reviewed |
| اللغة: | English |
| Relation: | https://www.tandfonline.com/doi/pdf/10.1080/19475705.2022.2090863; urn:issn:1947-5705; urn:issn:1947-5713 |
| DOI: | 10.1080/19475705.2022.2090863 |
| URL الوصول: | https://orbi.uliege.be/handle/2268/294910 |
| حقوق: | open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
| رقم الأكسشن: | edsorb.294910 |
| قاعدة البيانات: | ORBi |
| DOI: | 10.1080/19475705.2022.2090863 |
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