Impacts of the Nile Delta land‐use on the local climate

Giannakopoulou, Evangelia-Maria; Toumi, Ralf

doi:10.1002/asl.381

Cited by 10 publications

(9 citation statements)

References 17 publications

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“…Changes in meteorological variables due to atmospheric circulation and man-made processes have exerted significant impacts on ET O variations (Yin et al, 2010;Zhang et al, 2011;Giannakopoulou and Toumi, 2012). The negative trend of annual ET O was clearly dominated by decreasing wind speed, while the positive trend of annual ET O was mainly caused by increasing air temperature, which were in agreement with studies in Iran (Tabari et al, 2012a), India (Bandyopadhayay et al, 2009), Australia (Roderick and Farquhar, 2004), and the North China (Feng et al, 2014).…”

Section: Impact Of Meteorological Variables To Et O Trendssupporting

confidence: 86%

Spatiotemporal trends of reference evapotranspiration and its driving factors in the Beijing–Tianjin Sand Source Control Project Region, China

Shan

Shi

Yang

et al. 2015

Agricultural and Forest Meteorology

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Section: Impact Of Meteorological Variables To Et O Trendssupporting

confidence: 86%

Spatiotemporal trends of reference evapotranspiration and its driving factors in the Beijing–Tianjin Sand Source Control Project Region, China

Shan

Shi

Yang

et al. 2015

Agricultural and Forest Meteorology

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“…Reference evapotranspiration is greatly affected by changes in climatic variables induced by atmospheric circulation and human activities (Yin et al, 2010;Giannakopoulou and Toumi, 2012). In Jing River Basin, the decreasing ET o trend was mainly dominated by decreasing wind speed in all time scales, which is similar to many studies in northwest China (Cao et al, 2012), southeast China (Li et al, 2014), Qinghai-Tibet plateau (Yin et al, 2010), and in the Haihe , Heihe (Ma et al, 2012), and Akesu River (Zhang et al, 2011a) Basins of China.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal variation and driving forces of reference evapotranspiration in Jing River Basin, northwest China

Shi

Wang

et al. 2015

Hydrological Processes

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Abstract:Evapotranspiration is an important component of the hydrological cycle, which integrates atmospheric demands and surface conditions. Research on spatial and temporal variations of reference evapotranspiration (ET o ) enables understanding of climate change and its effects on hydrological processes and water resources. In this study, ET o was estimated by the FAO-56 PenmanMonteith method in the Jing River Basin in China, based on daily data from 37 meteorological stations from 1960 to 2005. ET o trends were detected by the Mann-Kendall test in annual, seasonal, and monthly timescales. Sensitivity coefficients were used to examine the contribution of important meteorological variables to ET o . The influence of agricultural activities, especially irrigation on ET o was also analyzed. We found that ET o showed a decreasing trend in most of the basin in all seasons, except for autumn, which showed an increasing trend. Mean maximum temperature was generally the most sensitive parameter for ET o , followed by relative humidity, solar radiation, mean minimum temperature, and wind speed. Wind speed was the most dominant factor for the declining trend in ET o . The more significant decrease in ET o for agricultural and irrigation stations was mainly because of the more significant decrease in wind speed and sunshine hours, a mitigation in climate warming, and more significant increase in relative humidity compared with natural stations and non-irrigation stations. Changes in ET o and the sensitivity coefficient of meteorological variables in relation to ET o were also affected by topography. Better understanding of ET o response to climate change will enable efficient use of agricultural production and water resources, which could improve the ecological environment in Jing River Basin.

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“…In general, as the climate varies, ET is likely to be impacted; it is particularly hypersensitive to short-period meteorological conditions [61][62][63][64]. Three climate factors were researched in our paper.…”

Section: The Effect Of Climate Factors On Etmentioning

confidence: 99%

Spatial-Temporal Patterns and Controls of Evapotranspiration across the Tibetan Plateau (2000–2012)

Zhang

Sun

Xiong

2017

Advances in Meteorology

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Evapotranspiration (ET) is a key factor to further our understanding of climate change processes, especially on the Tibetan Plateau, which is sensitive to global change. Herein, the spatial patterns of ET are examined, and the effects of environmental factors on ET at different scales are explored from the years 2000 to 2012. The results indicated that a steady trend in ET was detected over the past decade. Meanwhile, the spatial distribution shows an increase of ET from the northwest to the southeast, and the rate of change in ET is lower in the middle part of the Tibetan Plateau. Besides, the positive effect of radiation on ET existed mainly in the southwest. Based on the environment gradient transects, the ET had positive correlations with temperature ( > 0.85, < 0.0001), precipitation (R > 0.89, p < 0.0001), and NDVI (R > 0.75, p < 0.0001), but a negative correlation between ET and radiation (R = 0.76, p < 0.0001) was observed. We also found that the relationships between environmental factors and ET differed in the different grassland ecosystems, which indicated that vegetation type is one factor that can affect ET. Generally, the results indicate that ET can serve as a valuable ecological indicator.

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Impacts of the Nile Delta land‐use on the local climate

Cited by 10 publications

References 17 publications

Spatiotemporal trends of reference evapotranspiration and its driving factors in the Beijing–Tianjin Sand Source Control Project Region, China

Spatiotemporal trends of reference evapotranspiration and its driving factors in the Beijing–Tianjin Sand Source Control Project Region, China

Spatiotemporal variation and driving forces of reference evapotranspiration in Jing River Basin, northwest China

Spatial-Temporal Patterns and Controls of Evapotranspiration across the Tibetan Plateau (2000–2012)

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