Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region
In recent years, human activities induced increases in atmospheric carbon dioxide (CO<sub>2</sub>) which caused global warming and climate change. Climate change is anticipated to cause negative and adverse impacts on water systems throughout the world. Higher temperatures are expected t...
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Shahid Chamran University of Ahvaz
2018-12-01
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| Series: | علوم و مهندسی آبیاری |
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| Online Access: | http://jise.scu.ac.ir/article_13753_247a544e34795a4a7d0cd5917d0ac9c6.pdf |
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| author | Sanaz Joorabloo Khalil Azhdary Zahra Ganji Mehdi Delghandi |
| author_facet | Sanaz Joorabloo Khalil Azhdary Zahra Ganji Mehdi Delghandi |
| author_sort | Sanaz Joorabloo |
| collection | DOAJ |
| description | In recent years, human activities induced increases in atmospheric carbon dioxide (CO<sub>2</sub>) which caused global warming and climate change. Climate change is anticipated to cause negative and adverse impacts on water systems throughout the world. Higher temperatures are expected to lead to a host of problems. These include melting snowpack, altering both the intensity and frequency of precipitation, increasing evapotranspiration and else. (Delghandi, 2016). <br />Reference evapotranspiration (ET<sub>o</sub>) is a key hydrological variable quantifying a major water loss from catchments and basins, which can be used to calculate actual evapotranspiration (ET<sub>a</sub>), scheduled irrigation and prepare input data for hydrological models. The irrigation water requirement basically represents the difference between the crop water requirement and effective precipitation. The only factors affecting ET<sub>o</sub> are climatic parameters as water is abundantly available at the reference evapotranspiring surface (Allen et al., 1998). The first of climatic parameters is air temperature. As temperature increases, evapotranspiration also goes up. Some study conducted to indicate climate change impact on ET (e.g, Behmanesh et al., 2015; Sheidaeian et al., 2015; Babaeian and Kouhi, 2012). In this study, climate change impacts on reference evapotranspiration (ET<sub>o</sub>) and precipitation deficit (PD) were studied from 2010 to 2099 in Semnan region. The objective of this study was to examine the climate change impact on the ET<sub>o</sub> regarding the uncertainty of Atmosphere-Ocean General Circulation Models (AOGCM) and Greenhouse Gases Emission (GHG) scenarios. |
| first_indexed | 2024-12-21T20:21:20Z |
| format | Article |
| id | doaj.art-e552f92525784865a458b7f970948d70 |
| institution | Directory Open Access Journal |
| issn | 2588-5952 2588-5960 |
| language | fas |
| last_indexed | 2024-12-21T20:21:20Z |
| publishDate | 2018-12-01 |
| publisher | Shahid Chamran University of Ahvaz |
| record_format | Article |
| series | علوم و مهندسی آبیاری |
| spelling | doaj.art-e552f92525784865a458b7f970948d702022-12-21T18:51:29ZfasShahid Chamran University of Ahvazعلوم و مهندسی آبیاری2588-59522588-59602018-12-01414617510.22055/jise.2017.19991.142813753Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan RegionSanaz Joorabloo0Khalil Azhdary1Zahra Ganji2Mehdi Delghandi3M.Sc. graduated in water structures, Faculty of Agricultural Engineering, Shahrood University OF TechnologyAssociate Professor,Water and soil Engineering Department, Faculty of Agricultural Engineering, Shahrood University of Technology, Shahrood, Iran.Assistant Professor,Water Engineering Department, Faculty of Agricultural Engineering, Shahrood University of Technology, Shahrood, Iran.Assistant Professor,Water Engineering Department, Faculty of Agricultural Engineering, Shahrood University of Technology, Shahrood, Iran.In recent years, human activities induced increases in atmospheric carbon dioxide (CO<sub>2</sub>) which caused global warming and climate change. Climate change is anticipated to cause negative and adverse impacts on water systems throughout the world. Higher temperatures are expected to lead to a host of problems. These include melting snowpack, altering both the intensity and frequency of precipitation, increasing evapotranspiration and else. (Delghandi, 2016). <br />Reference evapotranspiration (ET<sub>o</sub>) is a key hydrological variable quantifying a major water loss from catchments and basins, which can be used to calculate actual evapotranspiration (ET<sub>a</sub>), scheduled irrigation and prepare input data for hydrological models. The irrigation water requirement basically represents the difference between the crop water requirement and effective precipitation. The only factors affecting ET<sub>o</sub> are climatic parameters as water is abundantly available at the reference evapotranspiring surface (Allen et al., 1998). The first of climatic parameters is air temperature. As temperature increases, evapotranspiration also goes up. Some study conducted to indicate climate change impact on ET (e.g, Behmanesh et al., 2015; Sheidaeian et al., 2015; Babaeian and Kouhi, 2012). In this study, climate change impacts on reference evapotranspiration (ET<sub>o</sub>) and precipitation deficit (PD) were studied from 2010 to 2099 in Semnan region. The objective of this study was to examine the climate change impact on the ET<sub>o</sub> regarding the uncertainty of Atmosphere-Ocean General Circulation Models (AOGCM) and Greenhouse Gases Emission (GHG) scenarios.http://jise.scu.ac.ir/article_13753_247a544e34795a4a7d0cd5917d0ac9c6.pdfclimate changeaogcm modelsuncertaintyreference evapotranspirationprecipitation deficit |
| spellingShingle | Sanaz Joorabloo Khalil Azhdary Zahra Ganji Mehdi Delghandi Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region علوم و مهندسی آبیاری climate change aogcm models uncertainty reference evapotranspiration precipitation deficit |
| title | Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region |
| title_full | Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region |
| title_fullStr | Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region |
| title_full_unstemmed | Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region |
| title_short | Climate Change Impact on Reference Evapotranspiration and Precipitation Deficit in Semnan Region |
| title_sort | climate change impact on reference evapotranspiration and precipitation deficit in semnan region |
| topic | climate change aogcm models uncertainty reference evapotranspiration precipitation deficit |
| url | http://jise.scu.ac.ir/article_13753_247a544e34795a4a7d0cd5917d0ac9c6.pdf |
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