Land Cover and Temperature Implications for the Seasonal Evapotranspiration in Europe

Evapotranspiration calculation is an important matter due to agricultural reasons, but also for understanding water resources and runoff amount in a certain territory. Two CMIP5 multimodal projections (2011–2040 and 2041–2070) and land‐cover pattern were used to analyse the seasonal and annual crop evapotranspiration trend in Turkey. The spatial distribution of crop evapotranspiration related to the initial season, mid‐season, end season and cold season were computed through a geographical information system. The maximum crop evapotranspirations were found in the mid‐season for present and future, with 1,072 and 1,241 mm respectively. For the future period, an increase in the spatial distribution of crop evapotranspiration was depicted in several places due to climate warming, mainly in the southern and southeastern areas of Turkey and on the Mediterranean coast. The minimum seasonal crop evapotranspirations fell to below 154 and 164 mm in the present and future respectively. The annual crop evapotranspiration increased from 1,675 to 1,944 mm from present to future and the significant values of absolute changes were identified in the western, eastern and southeastern regions of Turkey. The findings are useful for scientists in the climate, hydrology and agriculture fields, but also for management decisions.

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“…An appropriate methodology used to assess the favourable areas for evapotranspiration for the whole of Europe was developed by Nistor et al . ().…”

Section: Introductionmentioning

confidence: 98%

“…This procedure, based on climate data and K clc , was tested and validated by Nistor et al (2016 in the Pannonian and Carpathian regions respectively. An appropriate methodology used to assess the favourable areas for evapotranspiration for the whole of Europe was developed by Nistor et al (2018).…”

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confidence: 99%

Climate change impact on crop evapotranspiration in Turkey during the 21st Century

Nistor

Mîndrescu

Petrea

et al. 2019

Meteorological Applications

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“…Often, there is no comprehensive data for the whole area that would affect the quality of the analysis result in a particular area (Lines et al, 2017). The data obtained from satellite thus is used to analyze the drought since it is the source of data that can store data continuously, covering the vast area and could be used to identify the location also (Furtuna & Holobaca, 2013;Chang et al, 2018;Nistor et al, 2018;Son et al, 2018;Canedo-Rosso et al, 2019). The word "drought" has no universal clear definition; it is just the period of time when the climate is dried and affects the change of plants and moisture in soil.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Drought Around Chi Watershed During Ten-Year Period Using Terra/Modis Data

Rotjanakusol¹,

Laosuwan²

2019

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To examine the drought affected area is highly challenging because the drought is a natural disaster that starts and expands slowly. The severity of the drought is different when the rainfall is imbalance in the area. The objective of this study was to analyze the drought around Chi watershed with total area of 49,131.920 km 2 by using data from Terra/MODIS satellite during 10 years (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016). On part of method operation, the NDVI data was obtained from Terra/MODIS satellite, and VCI (Vegetation Condition Index) analysis was performed to examine the condition of plants which could identify the condition of drought in the area. According to the study, it was found that in 2015, it was the time when the drought affected area was at most which was equal to 91.54 percent, or 44975.23 km 2 . When the analysis results of these ten years were brought to find relationship with rainfall, it was found that the decision coefficient was R 2 = 0.913. It can be concluded from the results of this study that VCI could be used as indicator and could identify the drought in Chi watershed in terms of area and time reasonably.

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“…Different regions of the world show differential responses to global climate change. The changes in temperature and rainfall patterns, combined with other complex anthropological factors, govern the regional and local hydrological variables (Pr av alie, 2014;Pr av alie et al, 2014;Nistor et al, 2018). Reduced precipitation coupled with high temperatures could have a negative impact on surface waters and groundwater (Loáiciga et al, 2000;Bachu and Adams, 2003;Brouyère et al, 2004;Nistor, 2019).…”

Section: Introductionmentioning

confidence: 99%

Climate change effect on water resources in Varanasi district, India

Nistor

Kumar

Dugesar

et al. 2019

Meteorological Applications

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Evapotranspiration and water availability are driven by changing climate and land cover parameters. In the present study, climatological records and land cover data were analysed simultaneously to accomplish the spatial distributions of climate change effects on water resources in Varanasi district, north India. Humidity–aridity was assessed by Lang's rain factor and De Martonne's aridity index, based on mean monthly rainfall and air temperature from seven meteorological stations. The climate change effect on water resources was evaluated using a 5 × 5 matrix that includes water availability and the aridity index by considering two time periods: 1941–1970 (1950s) and 1971–2000 (1980s). The methodology is based on seasonal crop evapotranspiration (ETc) (initial, mid‐season, end season and cold season) and annual water availability calculations. The high values (≤ 1,045 mm) of ETc were identified during the mid‐season stage. Water availability indicates decreases in the maximums from 718 to 636 mm during the two analysed periods, with a negative impact at the spatial scale. Lang's rain factor (< 40) indicates an arid climate in the northwest, west, east and central parts of the district and a humid climate (Lang's rain factor > 40) in the south. De Martonne's aridity index indicates rapid aridization from south to north (28.3 in the 1950s and 25.6 in the 1980s). The high and very high climate effects on water resources in Varanasi district were found mainly in the crop lands, while in the urban areas the climate effect is low. The much affected area by climate change and land cover was depicted during the recent period (1980s). This statement was proved also by the Mann and Kendall test, which indicates a negative trend for annual precipitation at all stations (for the period 1941–2000), while the mean annual temperature had a positive trend for four stations. These findings suggest that climate change had a negative effect on water resources during the last 60 years in the study area.

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Land Cover and Temperature Implications for the Seasonal Evapotranspiration in Europe

Cited by 10 publications

References 33 publications

Climate change impact on crop evapotranspiration in Turkey during the 21st Century

Climate change impact on crop evapotranspiration in Turkey during the 21st Century

An Investigation of Drought Around Chi Watershed During Ten-Year Period Using Terra/Modis Data

Climate change effect on water resources in Varanasi district, India

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