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Drought Indicator Articles & Analysis
29 articles found
The Central and West Asia and North Africa (CWANA) region is highly vulnerable to the impacts of climate change. The agricultural sector is particularly susceptible, employing 50–60% of the labor force and contributing significantly to the region’s socio-economic development. The CWANA region is already experiencing more frequent – and intense – droughts and heat waves. ...
Experts at COP 27 have made apocalyptic forecasts of weather under climate change if urgent action is not taken. In South Asia, the anticipated ‘climate chaos’ is already a reality for many, with extreme droughts and floods increasingly affecting the region. According to the World Bank, losses will average USD 160 billion per year by the end of this decade if current trends continue. ...
During times of drought, gypsum accretes in Lake Chichancanab in the Mexican state of Yucatán, which was once the heart of Mayan civilization. ...
During times of drought, gypsum accretes in Lake Chichancanab in the Mexican state of Yucatán, which was once the heart of Mayan civilization. ...
Drought indices like Streamflow Drought Index (SDI) and Standardized Precipitation Index (SPI) offer quantitative methods for combating probable consequences of drought. In this article, the results of the drought indices trend showed that the case study suffers from hydrological ...
A drought is a multi-dimensional event characterized by changes in the atmospheric and land conditions. Hence, monitoring a single drought indicator may be insufficient for water management. The hybrid drought index (HDI) is presented as a nonparametric composite indicator for monitoring multiple components ...
Drought is a costly natural hazard affecting socio-economic activity and agricultural livelihoods, as well as adversely impacting public health and threatening the sustainability of many natural environments. ...
Based on the estimation of standardized precipitation–evapotranspiration index (SPEI) and standardized runoff index (SRI), this study investigated the variability and correlation of hydrological drought and meteorological drought in a humid climate region – the Poyang Lake catchment in China. Results indicate that the occurrences of ...
This paper presents a general overview of drought management policies in the EU and in Spain. The paper studies the specific case of Spain, where drought management policies have evolved from traditional emergency actions to Drought Management Plans (DMPs). Historical droughts and the main drought episodes ...
The focus of this study was to integrate drought planning and management into local and regional decision-making processes in the Seyhan River Basin, which is the second-largest basin after the Nile in the Eastern Mediterranean and agriculturally one of the most productive regions in Turkey and Europe. The methodological approach consisted of two steps: Step 1 – review and ...
The article provides an overview of the development of national drought management policies (NDMP). It explores collaborative efforts that were started at the High-level Meeting on National Drought Policy – whose declaration provides the backdrop to this article – and are implemented through the World Meteorological Organization (WMO)/Global Water Partnership ...
Droughts have resulted in significant socio-economic impacts in the regions of Africa and Latin America and the Caribbean (LAC), especially in developing countries. ...
This study uses extended (1880s–2012) rainfall series to examine the implications of historical droughts on water supply yield calculations used in water resource management and drought planning across the English Midlands and Central Wales. UK guidance to water companies is to use climate data from the 1920s to present where possible in modelling to inform ...
In order to describe the overall drought status objectively, a copula-based joint deficit index (JDI) was adopted for analyses of drought characteristics in Luanhe River basin. ...
Specifically, the emergency scheduling plans regenerate the water supply strategy of Biliuhe Reservoir and Yingnahe Reservoir, and then reduce the impact of severe drought year on Dalian. The scheduling results of the case study reveal that this DSS makes good use of mutual compensation functions among multiple water sources when it is applied to the water supply emergency ...
There is a close quality relationship between the harmful levels of all three drought indicator groups (meteorological, hydrological and agricultural). However, the numerical scale of the relationships between them is unclear and the conversion of indicators is unsolved. Different areas or an area with different forms of ...
Most current drought indices rely on a representative parametric distribution function to fit data, which results in different tail behaviors. Additionally, a drought index based on a single variable may not be sufficient for monitoring drought conditions timely and reliably. ...
Drought monitoring is directed to detecting the onset, persistence and severity of the drought. In this study, meteorological drought indices such as the Standardized Precipitation Index (SPI), the Reconnaissance Drought Index (RDI) and deciles were assessed to investigate how well these indices ...
In order to reach this aim, in the present study, A1 emission scenario, ECHO–G model and LARS–weather generator (LARS–WG) statistical downscaling method are used for downscaling parameters of minimum and maximum temperature and rainfall. Using two drought indices, standardised precipitation index (SPI) and reconnaissance drought index (RDI), the ...
By mapping a key indicator of droughts, pests and wildfire in arid places, scientists offer hope for spotting — and addressing — drought before it sets in. ...
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