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Drought Monitoring With Spectral Indices Calculated From Modis Satellite Images In Hungary [PDF]
Journal of Environmental Geography, 2015 In this study a new remote sensing drought index called Difference Drought Index (DDI) was introduced. DDI was calculated from the Terra satellite’s MODIS sensor surface reflectance data using visible red, near-infrared and short-wave-infrared spectral ...
Gulácsi András, Kovács Ferenc
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Remote Sensing, 2022 Drought affects a region’s economy intensively and its severity is based on the level of infrastructure present in the affected region. Therefore, it is important not only to reflect on the conventional environmental properties of drought, but also on ...
Seonyoung Park +4 more
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Designing Drought Indicators [PDF]
Bulletin of the American Meteorological Society, 2019 AbstractDrought indicators hold great potential to assist water management. However, drought information products are traditionally designed by scientists with little input from the end users. This has resulted in an inundation of products ill suited to stakeholder needs and requirements, limiting the potential for improving management through the use ...
A. J. Purdy +8 more
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Journal of Applied Sciences and Environmental Management, 2020 Drought Indices are extensively adopted as a drought detection and monitoring tool in all climatic regions. This study assesses and compares the performance of four rainfall based drought indices, Deciles index (DI), Percent of Normal Index (PNI ...
C.S. Ekwezuo, J.C. Madu
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Drought has been identified as one of the significant complicated natural disasters exacerbated by land degradation and climate change. Hence, monitoring drought and evaluating its spatiotemporal dynamics are essential to manage regional drought ...
Sepideh Jalayer +4 more
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Hydrology Research, 2023 Droughts are defined by a prolonged absence of moisture. For making drought assessments, a drought index is a crucial tool. This study aims to compare drought characteristics across the Central Main Ethiopian Rift using three drought indices – the ...
Wondimu T. Hailesilassie +2 more
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Analysis of Regional Drought Correlation Using Drought Indicators [PDF]
Journal of the Korean Society of Hazard Mitigation, 2020 The distribution of water resources between regions should be considered along with various conditions in establishing long-term drought measures. Therefore, analysis of the correlation of drought occurrence by region is essential. In this study, three drought indexes, SPI, GEI, and SSEI, were calculated in major cities, and the regional drought was ...
Hayong Kim +3 more
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Standardised indices to monitor energy droughts
Renewable Energy, 2022 To mitigate the effects of climate change, energy systems are becoming increasingly reliant on renewable energy sources. Since these energy sources are typically dependent on the prevailing weather, renewable energy systems are susceptible to shortages during certain weather conditions. As renewable sources become larger contributors to the energy mix,
Sam Allen, Noelia Otero
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Remote Sensing, 2020 Various drought indices have been developed to monitor drought conditions. Each index has typical characteristics that make it applicable to a specific environment.
Yang Han +7 more
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The challenges of hydrological drought definition, quantification and communication: an interdisciplinary perspective [PDF]
Proceedings of the International Association of Hydrological Sciences, 2020 Numerous indices exist for the description of hydrological drought. The EURO FRIEND-Water Low flow and Drought Group has repeatedly discussed changing paradigms in the perception and use of existing and emerging new indices for hydrological drought ...
K. Stahl +6 more
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