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Satellite-Based Approaches in the Detection and Monitoring of Selected Hydrometeorological Disasters

Part of the Sustainable Development Goals Series book series (SDGS)

Abstract

Earth observation satellite systems play an important role in the provision of a wide range of information, especially in data-scarce regions. This role becomes extremely relevant during a disaster and when direct access to the affected area is difficult. This chapter provides an overview of the state of the art remote sensing techniques and tools for the detection and monitoring of hydrometeorological disasters, focusing on tropical cyclones Idai and Kenneth. In a perspective of disaster preparedness, rainfall measurements provided by satellites can enable decision-makers to take urgent measures in the pre-event phase and can be used as input for early warning systems. Data acquired from satellite missions are used for a set of different tools developed to map flood extent, while several satellite-based emergency mapping mechanisms provide timely post-event information by taking advantage of observations provided by satellites (including commercial platforms providing images at very high geometric resolution). Analysis of vegetation dynamics derived from time-series of multispectral imagery is used to assess changes, such as the detection of cyclone-damaged areas, identification of critical conditions in vegetation health/productivity, and land cover change mapping.

Keywords

  • Cyclone
  • Flood
  • Hurricane
  • Rainfall
  • Remote sensing
  • Satellite

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  • DOI: 10.1007/978-3-030-74192-1_2
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Correspondence to Paola Mazzoglio .

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Mazzoglio, P. et al. (2021). Satellite-Based Approaches in the Detection and Monitoring of Selected Hydrometeorological Disasters. In: Nhamo, G., Chapungu, L. (eds) The Increasing Risk of Floods and Tornadoes in Southern Africa. Sustainable Development Goals Series. Springer, Cham. https://doi.org/10.1007/978-3-030-74192-1_2

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