The study examined the spatiotemporal distribution of drought in the Maasai rangelands of Kenya. The implications of this distribution, in concert with the documented existing and/or projected social and biophysical factors, on critical rangeland resources in Maasai-pastoralism are discussed using an integrated approach. Participatory interviews with the Maasai, retrieval from archives, and acq...

Climate change has made many alterations to the climate of earth, including hydro-climatic extreme events. To investigate impact on hydro-meteorological droughts in Kamal-Saleh dam basin Markazi province, Iran, proportional future conditions, a new and comprehensive index was developed with aim accurately estimating drought more realistic condition. This aggregate (ADI) represented main meteoro...

Drought management depends on indicators to detect drought conditions, and triggers to activate drought responses. But determining those indicators and triggers presents challenges. Indicators often lack spatial and temporal transferability, comparability among scales, and relevance to critical drought impacts. Triggers often lack statistical integrity, consistency among drought categories, and...

Abstract With respect to the necessity of comprehensive studies on drought and also high damages that caused by drought, this research studied meteorological hydrological droughts. In study, Lighvan, Navroud Seqez basins with different climates were selected. We used monthly data stream flow, precipitation evaporation from 1992 2016 for study phenomena. The aim at is analyze SPI SPEI determinat...

This study investigates the improvement of ozone (O3) simulations in the Mexico City basin using a threedimensional variational (3DVAR) data assimilation system in meteorological simulations during the MCMA-2003 field measurement campaign. Meteorological simulations from the NCAR/Penn State mesoscale model (MM5) are used to drive photochemical simulations with the Comprehensive Air Quality Mode...

Mexico City lies in a high altitude basin where air quality and pollutant fate is strongly influenced by local winds. The combination of high terrain with weak synoptic forcing leads to weak and variable winds with complex circulation patterns. A gap wind entering the basin in the afternoon leads to very different wind convergence lines over the city depending on the meteorological conditions. ...

In order to have effective agricultural production the impacts of drought must be mitigated. An important aspect of mitigating the impacts of drought is an effective method of forecasting future drought events. In this study, three methods of forecasting short-term drought for short lead times are explored in the Awash River Basin of Ethiopia. The Standardized Precipitation Index (SPI) was the ...

Future changes (2015–2100) in precipitation and meteorological droughts Lake Urmia Basin were investigated using an average mean ensemble of eight general circulation models (GCMs) with high-resolution datasets socioeconomic pathway scenarios (SSPs) from the Coupled Model Intercomparison Project (CMIP6). In order to project drought, standardized index (SPI) was calculated. Overall, results reve...