Results 21 to 30 of about 30,198 (261)

Development of Drought Monitoring System: II. Quantitative Drought Monitoring and Drought Outlook Methodology [PDF]

Journal of Korea Water Resources Association, 2006
In this study, Combined Drought Index which can monitor the drought severity and intensity has been developed using PDSI, SPI and MSWSI. To verify the accuracy and applicability of combined drought index, Drought map of Korea using the combined drought index has compared with past drought event.
openaire   +1 more source

Remote Sensing Drought Monitoring and Assessment in Southwestern China based on Machine Learning

Gaoyuan qixiang, 2022
Due to the complexity of drought and the diversity of influencing factors， the accurate monitoring of drought still faces many problems， especially the increasing frequency and aggravation of drought in Southwestern China， and the formation and disaster ...
Hejia JIA, Xiehui LI, Lei WANG, Yuting XUE, Huiquan LIN   +4 more
doaj   +1 more source

Drought monitoring in Iran using the perpendicular drought indices

International Journal of Applied Earth Observation and Geoinformation, 2012
Abstract This paper aims at finding, evaluating and refining an appropriate drought estimation method for semi-arid regions, e.g., Iran using remote sensing. Recently developed methods, the Perpendicular Drought Index (PDI) and Modified Perpendicular Drought Index (MPDI), are selected as satellite based drought indices in this study.
Alireza Shahabfar, Abduwasit Ghulam, Josef Eitzinger   +2 more
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A New Drought Index Study that Takes into Account a Multi-timescale and the Effects of Evapotranspiration——Taking Yunnan as an Example

Gaoyuan qixiang, 2022
Based on the response of a multiscale drought index to soil moisture and the drought-affected crop area， this study constructed a new composite-index DI that consists of a short time scale （the last 30 days） relative to the Humidity Index （MI30 ...
Qiang ZHANG, Xukai ZOU, Xianyan CHEN, Lin ZHAO, Tingting LI, Zhonghua QIAN   +5 more
doaj   +1 more source

Drought Monitoring and Assessment

, 2020
The predictions of rainfall are not accurate, which might lead to floods or drought due to which risk occurs. Here we are going to discuss drought risk management in which Drought monitoring is an essential component. It is usually carried out using drought indicators.
Journals, Mat, Sharath, L.
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Drought monitoring in the Brazilian Semiarid region [PDF]

Anais da Academia Brasileira de Ciências, 2019
Drought is a natural and recurrent phenomenon. It is considered 'a natural disaster' whenever it occurs in an intensive manner in highly populated regions, resulting in significant damage (material and human) and loss (socioeconomic). This paper presents the efforts developed to monitor the impact of drought in the semiarid region of Northeast Brazil ...
ALVALÁ, REGINA C.S., CUNHA, ANA PAULA M.A., BRITO, SHEILA S.B., SELUCHI, MARCELO E., MARENGO, JOSÉ A., MORAES, OSVALDO L.L., CARVALHO, MAGOG A.   +6 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
openaire   +1 more source

Regional GNSS-Derived SPCI: Verification and Improvement in Yunnan, China

Remote Sensing, 2021
From the aspect of global drought monitoring, improving the regional drought monitoring method is becoming increasingly important for the sustainable development of regional agriculture and the economy.
Xiongwei Ma, Yibin Yao, Qingzhi Zhao
doaj   +1 more source

Mind the gap: misalignment between drought monitoring and community realities [PDF]

Natural Hazards and Earth System Sciences
Despite recent studies emphasising the dual human and physical nature of droughts, there is a lag in advancing this insight in drought monitoring and early warning systems (DEWSs).
S. Kchouk, L. Cavalcante, L. A. Melsen, D. W. Walker, G. Ribeiro Neto, R. Gondim, W. J. Smolenaars, P. R. van Oel   +7 more
doaj   +1 more source

Spatiotemporal Variations and Spatially Associated Factors of Drought in Hebei Province Based on Multi-Source Consistency Evaluation of Remote Sensing Drought Indices

Land
Global climate change has intensified drought risk, threatening water resources, agriculture, and ecosystems. This study evaluated four Moderate Resolution Imaging Spectroradiometer (MODIS)-based drought indices in Hebei Province: the evapotranspiration ...
Suya Zhao, Kaiyu Wang, Xia Zhang, Guofei Shang, Chengyu Liu, Tengyuan Cui, Jingyi Ren   +6 more
doaj   +1 more source