Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran
In recent decades, severe climate change, decreased precipitation, temperature rise, and increased evapotranspiration (ET) have significantly reduced waterbodies. Furthermore, governments have prioritized the study of water level fluctuations of lakes to protect them from degradation nationally and...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Egyptian Journal of Remote Sensing and Space Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S111098232300073X |
| _version_ | 1797642571526176768 |
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| author | Abouzar Nasiri Maryam Khosravian Rahman Zandi Alireza Entezari Mohammad Baaghide |
| author_facet | Abouzar Nasiri Maryam Khosravian Rahman Zandi Alireza Entezari Mohammad Baaghide |
| author_sort | Abouzar Nasiri |
| collection | DOAJ |
| description | In recent decades, severe climate change, decreased precipitation, temperature rise, and increased evapotranspiration (ET) have significantly reduced waterbodies. Furthermore, governments have prioritized the study of water level fluctuations of lakes to protect them from degradation nationally and regionally. The present study investigated the physical changes in lakes Bakhtegan and Tashk due to climatic parameters. To this end, Landsat satellite imagery and the NDWI were employed to calculate the area of the waterbodies from 1986 to 2018. The results showed that the area had decreased during the study period-- since 2009, Lake Bakhtegan had dried up completely. In 2008 and 2010, the lowest precipitation was 127.82 and 107.7 mm, respectively. During the study period (1986 to 2018), the average temperature was 19.44 °C, with an increase of 0.6 °C. Among the climatic parameters, precipitation, with a correlation coefficient of 0.55, and potential evapotranspiration (PET), with a correlation coefficient of about −0.68, were more strongly correlated with changes in the area of the waterbodies. To predict temperature and precipitation in the study area in the coming decades (2020–2050), the HadCM2 model of the CORDEX Project -WAS (South Asia) was used under two scenarios: RCP4.5 and RCP8.5. These scenarios revealed the decrease in precipitation and increase in temperature trends. As a result, the waterbodies’ areas were estimated using the projected precipitation and PET for the period 2050–2020, indicating a decrease in the areas of the waterbodies. |
| first_indexed | 2024-03-11T14:02:03Z |
| format | Article |
| id | doaj.art-5b53145a0bd84e99a6596e6f6635e808 |
| institution | Directory Open Access Journal |
| issn | 1110-9823 |
| language | English |
| last_indexed | 2024-03-11T14:02:03Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Remote Sensing and Space Sciences |
| spelling | doaj.art-5b53145a0bd84e99a6596e6f6635e8082023-11-02T04:13:16ZengElsevierEgyptian Journal of Remote Sensing and Space Sciences1110-98232023-12-01263851861Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, IranAbouzar Nasiri0Maryam Khosravian1Rahman Zandi2Alireza Entezari3Mohammad Baaghide4Department of Geography, Firouzabad Institute of Higher Education, Firouzabad, Fars, Iran; Corresponding author.Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, IranFaculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, IranDepartment of Climatology and Geomorphology, Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, IranDepartment of Climatology and Geomorphology, Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, IranIn recent decades, severe climate change, decreased precipitation, temperature rise, and increased evapotranspiration (ET) have significantly reduced waterbodies. Furthermore, governments have prioritized the study of water level fluctuations of lakes to protect them from degradation nationally and regionally. The present study investigated the physical changes in lakes Bakhtegan and Tashk due to climatic parameters. To this end, Landsat satellite imagery and the NDWI were employed to calculate the area of the waterbodies from 1986 to 2018. The results showed that the area had decreased during the study period-- since 2009, Lake Bakhtegan had dried up completely. In 2008 and 2010, the lowest precipitation was 127.82 and 107.7 mm, respectively. During the study period (1986 to 2018), the average temperature was 19.44 °C, with an increase of 0.6 °C. Among the climatic parameters, precipitation, with a correlation coefficient of 0.55, and potential evapotranspiration (PET), with a correlation coefficient of about −0.68, were more strongly correlated with changes in the area of the waterbodies. To predict temperature and precipitation in the study area in the coming decades (2020–2050), the HadCM2 model of the CORDEX Project -WAS (South Asia) was used under two scenarios: RCP4.5 and RCP8.5. These scenarios revealed the decrease in precipitation and increase in temperature trends. As a result, the waterbodies’ areas were estimated using the projected precipitation and PET for the period 2050–2020, indicating a decrease in the areas of the waterbodies.http://www.sciencedirect.com/science/article/pii/S111098232300073XPhysical changesWaterbodiesClimatic parametersRemote sensing |
| spellingShingle | Abouzar Nasiri Maryam Khosravian Rahman Zandi Alireza Entezari Mohammad Baaghide Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran Egyptian Journal of Remote Sensing and Space Sciences Physical changes Waterbodies Climatic parameters Remote sensing |
| title | Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran |
| title_full | Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran |
| title_fullStr | Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran |
| title_full_unstemmed | Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran |
| title_short | Analysis of physical changes in Fars province water zones related to climatic parameters using remote sensing, Bakhtegan, Tashk, Iran |
| title_sort | analysis of physical changes in fars province water zones related to climatic parameters using remote sensing bakhtegan tashk iran |
| topic | Physical changes Waterbodies Climatic parameters Remote sensing |
| url | http://www.sciencedirect.com/science/article/pii/S111098232300073X |
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