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UNESCO-IHE Institute for Water Education, Delft (2015)

Drought characterization using ground and remote sensing data : [Rajshahi and Rangpur districts, Bangladesh]

Hore, S.K

Titre : Drought characterization using ground and remote sensing data : [Rajshahi and Rangpur districts, Bangladesh]

Auteur : Hore, S.K.

Université de soutenance : UNESCO-IHE Institute for Water Education, Delft

Grade : Master of Science (MS) 2015

Résumé partiel
Drought is a widespread natural hazard and a major issue in the north-western part of Bangladesh. The characterization and identification of drought in the context of drought monitoring and management is challenging. Although several researchers have developed a variety of drought indicators, it is important to assess the effectiveness of these in characterizing the occurrence of drought as well as the impacts of drought to different stakeholders. This study presents the characterization of drought indicator developed using ground and remote sensing data in Rajshahi and Rangpur districts in the north-western part of Bangladesh. The study focuses on the effectiveness of drought indicator in representing past drought events and determination of drought indicators and thresholds that best explain the occurrence of drought and its impacts in support of effective drought monitoring and management.Data on past records of drought events and their impact on different sectors (agriculture, fisheries, and migration of people) were collected from relevant organizations through field surveys in Bangladesh. In order to check the historical records of droughts and their impactinterviews were conducted with different groups of local stakeholders, key informants and knowledgeable persons in the community. Records on the impact of drought were available from the agriculture sectors though for the fisheries sectors these data were found to be unreliable. For this reason data on the impact to the fisheries sector were collected through discussions with fishermen and local professionals in the community. Data related to migration of people during drought events were also documented through discussions with local people in the study area. Meteorological (precipitation, temperature), hydrological (discharge) and groundwater data were collected from the related institutions in order to analyze the drought indicators.

Sujets  : drought management remote sensing Bangladesh

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Page publiée le 2 avril 2021