Abstract. In a warming climate, periods with lower than average precipitation will increase in frequency and intensity. During such periods, known as meteorological droughts, the decline annual runoff may be proportionally larger corresponding precipitation. Reasons behind this exacerbation of deficit during dry remain largely unknown, challenges predictability when occur future how intense it ...

Climate models are critical tools to study earth system processes and often further downscaled provide refined-resolution data sets for regional water-energy impact analyses. In this study, the Variable-Resolution Community Earth System Model (VR-CESM), a new dynamical downscaling method, is employed generate 1/8° simulations China western United States over 1970–2006. Precipitation, temperatur...

Drought and water scarcity are resulting from the effects of climate change during recent decades. The region Beni Mellal Khenifra, by nature its economic activities based particularly on agriculture availability resources, is considered among most vulnerable regions to in Morocco. In this paper, we analyzed impact three largest dams (Hassan first, Bin El Ouidane Ahmed Hansali), statistical dat...

Stalagmite oxygen isotope (δ18O) record has been widely used in characterizing Asian Monsoon variations. In southwest (SW) China, although the stalagmite δ18O was usually suggested as a precipitation proxy, it remains subject of debate. Here we present two replicated, high-precise-dated records for interval 1710–2003 AD from Yunnan province, SW China. The shows no correlation with local monsoon...

ABSTRACT Cowpea (Vigna unguiculata (L.) Walp.) is an excellent crop for research in semi-arid regions, due to its tolerance high temperatures and water deficit, with satisfactory yields rain-fed cultivation. The objective this work was evaluate the genotype x environment (G × E) interaction, adaptability stability of cowpea landraces used Cariri, Paraíba, semiarid region Northeast Brazil. exper...

Satellite-based drought indices have been shown to be effective and convenient in detecting conditions. The temperature vegetation dryness index (TVDI) is one of the most frequently used indices; however, it not suitable for areas with high fractional cover (FVC). In this study, a modified (mTVDI) was constructed by using multispectral (MVDI) proposed PROSAIL simulation water stress experiments...

The long-standing mainstay of support for C. T. R. Wilson’s global circuit hypothesis is the similarity between the diurnal variation of thunderstorm days in universal time and the Carnegie curve of electrical potential gradient. This rough agreement has sustained the widespread view that thunderstorms are the ‘‘batteries’’ for the global electrical circuit. This study utilizes 10 years of Trop...

An archive of land-based, surface-observed cloud reports has been updated and now spans 39 years from 1971 through 2009. Cloud-type information at weather stations is available in individual reports or in long-term, seasonal, and monthly averages. A shift to a new data source and the automation of cloud reporting in some countries has reduced the number of available stations; however this datas...

The impact of interannual variability of precipitation and potential evaporation on the long-term mean annual evapotranspiration as well as on the interannual variability of evapotranspiration is studied using a stochastic soil moisture model within the Budyko framework. Results indicate that given the same long-term mean annual precipitation and potential evaporation, including interannual var...

■ Abstract The influence of surface orography on patterns of precipitation gives rise to some of the most pronounced climate gradients on Earth, and plays a fundamental role in the interaction between the atmosphere and the rest of the Earth System on a wide variety of time scales. The physical mechanisms involved comprise a rich set of interactions encompassing fluid dynamics, thermodynamics, ...