Results 1 to 10 of about 8,878 (123)

A comprehensive assessment of remote sensing and traditional based drought monitoring indices at global and regional scale [PDF]

Geomatics, Natural Hazards & Risk, 2022
This study reports a comprehensive review on drought indices used in monitoring meteorological, agricultural, hydrological, and socio-economic drought.
Niranga Alahacoon, Mahesh Edirisinghe
doaj   +3 more sources

Near-global Agro-climatological Drought Monitoring Dataset [PDF]

Scientific Data
The increasing frequency and severity of global droughts present critical challenges to agriculture and climate resource management, highlighting the need for comprehensive drought data.
Sneha Kulkarni, Yohei Sawada
doaj   +2 more sources

A global drought dataset for Multivariate Composite Drought Index (MCDI) and its constituent drought indices [PDF]

Scientific Data
High-resolution drought index datasets are essential for drought monitoring and assessment. Despite numerous global/regional drought index datasets, the composite drought index datasets that comprehensively consider meteorological, agricultural, and ...
Mengjia Yuan, Guojing Gan, Jingyi Bu, Yanxin Su, Hongyu Ma, Xianghe Liu, Leyao Zhang, Yongqiang Zhang, Yanchun Gao   +8 more
doaj   +2 more sources

A global near real-time dataset of Microwave Integrated Drought Index from the Fengyun-3 satellites [PDF]

Scientific Data
Droughts have become more frequent and intense with increasing climate warming, posing widespread risks on ecosystem, agricultural, and water resources, therefore effective and timely drought monitoring is critical to drought assessment, management, and ...
Anzhi Zhang, Hao Gao, Ronghan Xu, Xiaoqing Li, Huichen Zhao, Gensuo Jia   +5 more
doaj   +2 more sources

Preliminary assessment of an integrated SMOS and MODIS application for global agricultural drought monitoring [PDF]

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
An application of the Soil Moisture Agricultural Drought Index (SMADI) at the global scale is presented. The index integrates surface soil moisture from the SMOS mission with land surface temperature (LST) and Normalized Difference Vegetation Index (NDVI) from MODIS and allows for global drought monitoring at medium spatial scales (0.05 deg).. Biweekly
Sanchez, N., Gonzalez-Zamora, A., Martinez-Fernandez, J., Piles, M., Pablos, M., Wardlow, Brian, Tadesse, Tsegaye, Svoboda, Mark   +7 more
openaire   +2 more sources

A global drought monitoring system and dataset based on ERA5 reanalysis: A focus on crop‐growing regions

Geoscience Data Journal, 2023
Drought monitoring systems are real‐time information systems focused on drought severity data. They are useful for determining the drought onset and development and defining the spatial extent of drought at any time. Effective drought monitoring requires
Sergio M. Vicente‐Serrano, Fernando Domínguez‐Castro, Fergus Reig, Miquel Tomas‐Burguera, Dhais Peña‐Angulo, Borja Latorre, Santiago Beguería, Isabel Rabanaque, Ivan Noguera, Jorge Lorenzo‐Lacruz, Ahmed El Kenawy   +10 more
doaj   +1 more source

A Random Forest Model for Drought: Monitoring and Validation for Grassland Drought Based on Multi-Source Remote Sensing Data

Remote Sensing, 2022
The accuracy of drought monitoring models is crucial for drought monitoring and early warning. Random forest (RF) is being used widely in the field of artificial intelligence.
Qian Wang, Lin Zhao, Mali Wang, Jinjia Wu, Wei Zhou, Qipeng Zhang, Meie Deng   +6 more
doaj   +1 more source

Global Assessment of the Standardized Evapotranspiration Deficit Index (SEDI) for Drought Analysis and Monitoring [PDF]

Journal of Climate, 2018
Abstract This article developed and implemented a new methodology for calculating the standardized evapotranspiration deficit index (SEDI) globally based on the log-logistic distribution to fit the evaporation deficit (ED), the difference between actual evapotranspiration (ETa) and atmospheric evaporative demand ...
Vicente-Serrano, Sergio M., Miralles, Diego G., Domínguez-Castro, Fernando, Azorin-Molina, Cesar, El Kenawy, Ahmed, McVicar, Tim R., Tomás-Burguera, Miquel, Beguería, Santiago, Maneta, Marco, Peña-Gallardo, Marina   +9 more
openaire   +1 more source

A global drought-aridity index: The spatiotemporal standardized precipitation evapotranspiration index

Ecological Indicators, 2023
Climate change has increased the risk of drought in both arid and non-arid regions of the globe. Therefore, in order to monitor and evaluate global drought and aridity, based on the principle of standardized precipitation evapotranspiration index (SPEI),
Hang Yu, Long Wang, Jianlong Zhang, Yuanfang Chen   +3 more
doaj   +1 more source

Regional drought risk assessment in the Central Highlands and the South of Vietnam

Geomatics, Natural Hazards & Risk, 2021
This study contributes to a proof-of-concept comprehensive drought risk assessment for Vietnam by (i) incorporating drought exposure and vulnerability based on specific socio-economic conditions of the regions; and (ii) using satellite data including ...
Tien Le, Chayn Sun, Suelynn Choy, Yuriy Kuleshov   +3 more
doaj   +1 more source