The emergence of flash drought has attracted widespread attention due to its rapid onset. However, little is known about the recent evolution of flash droughts in terms of the speed of onset and the causes of such a rapid onset phase of flash droughts. H
Operational drought monitoring systems, based on precipitation, soil moisture deficits, or temperature anomalies, often fall short in timely detection of these events, underscoring the need for customized identification and monitoring indices that account for the rapidity of flash drought onset. Recognizing...
(加强)themselves,with some help from the warming climate.When the weather is hot and dry,soil loses moisture rapidly.Dry air extracts moisture from the land,and rising temperatures can increase this evaporative (蒸发的)demand.The lack of rain during a flash drought can further contribute to the...
When the weather is hot and dry, soil loses water rapidly. Dry air extracts moisture from the land, and rising temperature can increase this evaporative demand. The lack of rain during a flash drought can further contribute to the feedback processes. Under these conditions, crops and vegetation...
Many people are familiar with flash floods – torrents that develop quickly after heavy rainfall. But there’s also such a thing as a flash drought.
S. Drought Monitor rely on satellite imagery of vegetation as well as other geophysical data. But they only provide a guess of soil moisture, rather than showing what’s happening beneath the surface. “Plants are doing the water exchange between the land and the atmosphere,” explains Mankin...
Flash drought is characterized by a period of rapid drought intensification with impacts on agriculture, water resources, ecosystems, and the human environment. Addressing these challenges requires a fundamental understanding of flash drought occurrence. This study identifies global hotspots for flash drought...
The warming climate is causing soils to lose their moisture more quickly, resulting in damaging, rapid-onset droughtsBy Madeleine Cuff13 April 2023 A field of soya beans hit by drought Joerg Boethling/AlamyClimate change is leading to more frequent “flash droughts”, which take just ...
Meteorological drought: The primary cause of a drought is the lack of precipitation over a large area and for a extensive period of time Soil moisture drought: The water deficit propagates through the hydrological cycle and gives rise to different types of droughts. ...
根据文章第三段 The2012disasterinspiredresearcherstoconcentrateonflashdroughts.Inastudypublishedin2021,Cookandhiscolleagues,usingtreeringdatapairedwithsoilmoisturedata,reconstructedthefrequencyandscaleofflashdroughtsintheCentralPlainsoverthepast500years.Themodelshowedthatoverone-thirdofallflashdroughtssinceA.D.1500...