les Ressources Minières

OA - Liste

Les Ressources minérales (*)

Une de ObsAnt

Résultats pour:
drought

2023

This year's heat and drought in the Amazon intensify worries that it is approaching a tipping point.
In recent years, droughts have had substantial impacts on nearly all regions of the EU, affecting several critical systems such as agriculture, water supply, energy, river transport, and ecosystems. These impacts are projected to further increase due to climate change. While some of the drivers of drought risk are well known for some systems and regions, drought risks and impacts remain hard to assess and quantify. The European Drought Risk Atlas is a step towards impact-based drought assessment and can support the development and implementation of drought management and adaptation policies and actions. It characterises how drought hazard, exposure and vulnerability interact and affect different but interconnected systems: agriculture, public water supply, energy, riverine transport, freshwater and terrestrial ecosystems. The Atlas presents both a conceptual and quantitative approach to drought risk for these systems. The conceptual drought risk models (impact chains) are the result of a review of the literat
Flash drought, characterized by unusually rapid drying, can have substantial impact on many socioeconomic sectors, particularly agriculture. However, potential changes to flash drought risk in a warming climate remain unknown. In this study, projected changes in flash drought frequency and cropland risk from flash drought are quantified using global climate model simulations. We find that flash drought occurrence is expected to increase globally among all scenarios, with the sharpest increases seen in scenarios with higher radiative forcing and greater fossil fuel usage. Flash drought risk over cropland is expected to increase globally, with the largest increases projected across North America (change in annual risk from 32% in 2015 to 49% in 2100) and Europe (32% to 53%) in the most extreme emissions scenario. Following low-end and medium scenarios compared to high-end scenarios indicates a notable reduction in annual flash drought risk over cropland. Flash droughts are projected to become more frequent unde
In de zomer van vorig jaar kampte Europa met een van de ergste droogtes sinds de metingen. Dit jaar zit er niet veel beterschap in.
After unusually low amounts of rain and snow this winter, the continent faces a severe water shortage.
Examination of trees alive at the time shows three years of severe drought that may have caused crop failures and famine

2022

Flash droughts can develop within a few weeks, causing water shortages, damaging crops and worsening fire risks.
The National Drought Group of the UK predicts that yields of some vegetable crops—carrots, onion, and potatoes—could be cut in half. The European Drought Observatory says that almost half of the bloc is drier than it has been since the Renaissance. China’s agricultural ministry has urged farmers to undertake emergency switches to different crops following a historic heatwave.
IGAD’S Climate Prediction and Applications Centre (ICPAC) today announced that the October to December (OND) 2022 forecast shows high chances of drier than average conditions across most parts of the Greater Horn of Africa. In particular, the drought affected regions of Ethiopia, Kenya, and Somalia are expected to receive insufficient rainfall until the end of the year.
The EDO pages contain drought-relevant information such as maps of indicators derived from different data sources (e.g., precipitation measurements, satellite measurements, modelled soil moisture content). Different tools, like Compare Layers, allow for displaying and analysing the information and drought reports give an overview of the situation in case of imminent droughts.