The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam
As the largest dam in China, the Three Gorges Dam (TGD) impacts on the environment cannot be ignored. The heat exchange process between surface water and near-surface atmosphere in the front of the dam has also been changed due to the construction of the dam, which will affect the development of dow...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-10-01
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| Series: | International Journal of Applied Earth Observations and Geoinformation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0303243421000799 |
| _version_ | 1811229741588414464 |
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| author | Kun Yang Zongqi Peng Yi Luo Chunxue Shang |
| author_facet | Kun Yang Zongqi Peng Yi Luo Chunxue Shang |
| author_sort | Kun Yang |
| collection | DOAJ |
| description | As the largest dam in China, the Three Gorges Dam (TGD) impacts on the environment cannot be ignored. The heat exchange process between surface water and near-surface atmosphere in the front of the dam has also been changed due to the construction of the dam, which will affect the development of downstream ecosystems. Therefore, the discussion of the water body in the front of the dam is very important. This research focused on the changes in the near-surface air temperature (NSAT) before the TGD was constructed (1989–2003, Pre-TGD) and the variations in the NSAT and the surface water temperature in the front of the dam (DSWT) after the construction of the TGD (2004–2018, Post-TGD). By analyzing the relationship between the changes and correlations of the NSAT and the DSWT and the operation cycle of the dam, exploring the impact of the TGD on the heat exchange process between the water-air interface. The results show that (1) the warming rate of the NSAT in the Pre-TGD period was obviously higher than the warming rate of the NSAT in the Post-TGD period. (2) After the construction of the dam, the DSWT showed a considerable upward trend, which was much higher than the rate of increase of the NSAT during the same period. And the variation trend in the NSAT and DSWT showed obvious seasonal and artificial regulation characteristics. (3) The NSAT and the DSWT were significantly correlated during the flood season. The construction of the TGD has changed the heat exchange process in the front of the dam, and that will further affect the regional heat balance. |
| first_indexed | 2024-04-12T10:18:23Z |
| format | Article |
| id | doaj.art-a5a4484345ea4c998774dbdd623c4df4 |
| institution | Directory Open Access Journal |
| issn | 1569-8432 |
| language | English |
| last_indexed | 2024-04-12T10:18:23Z |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Applied Earth Observations and Geoinformation |
| spelling | doaj.art-a5a4484345ea4c998774dbdd623c4df42022-12-22T03:37:09ZengElsevierInternational Journal of Applied Earth Observations and Geoinformation1569-84322021-10-01102102372The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges DamKun Yang0Zongqi Peng1Yi Luo2Chunxue Shang3Faculty of Geography, Yunnan Normal University, Yunnan 650500, China; GIS Technology Research Center of Resource and Environment in Western China, Ministry of Education, Yunnan Normal University, Yunnan 650500, ChinaFaculty of Geography, Yunnan Normal University, Yunnan 650500, ChinaFaculty of Geography, Yunnan Normal University, Yunnan 650500, China; GIS Technology Research Center of Resource and Environment in Western China, Ministry of Education, Yunnan Normal University, Yunnan 650500, China; Corresponding author at: Faculty of Geography, Yunnan Normal University, Yunnan 650500, China.GIS Technology Research Center of Resource and Environment in Western China, Ministry of Education, Yunnan Normal University, Yunnan 650500, China; Dean’s Office, Yunnan Normal University, Yunnan 650500, ChinaAs the largest dam in China, the Three Gorges Dam (TGD) impacts on the environment cannot be ignored. The heat exchange process between surface water and near-surface atmosphere in the front of the dam has also been changed due to the construction of the dam, which will affect the development of downstream ecosystems. Therefore, the discussion of the water body in the front of the dam is very important. This research focused on the changes in the near-surface air temperature (NSAT) before the TGD was constructed (1989–2003, Pre-TGD) and the variations in the NSAT and the surface water temperature in the front of the dam (DSWT) after the construction of the TGD (2004–2018, Post-TGD). By analyzing the relationship between the changes and correlations of the NSAT and the DSWT and the operation cycle of the dam, exploring the impact of the TGD on the heat exchange process between the water-air interface. The results show that (1) the warming rate of the NSAT in the Pre-TGD period was obviously higher than the warming rate of the NSAT in the Post-TGD period. (2) After the construction of the dam, the DSWT showed a considerable upward trend, which was much higher than the rate of increase of the NSAT during the same period. And the variation trend in the NSAT and DSWT showed obvious seasonal and artificial regulation characteristics. (3) The NSAT and the DSWT were significantly correlated during the flood season. The construction of the TGD has changed the heat exchange process in the front of the dam, and that will further affect the regional heat balance.http://www.sciencedirect.com/science/article/pii/S0303243421000799Surface water temperature in the front of the damNear-surface air temperatureHeat exchangeThe Three Gorges Dam |
| spellingShingle | Kun Yang Zongqi Peng Yi Luo Chunxue Shang The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam International Journal of Applied Earth Observations and Geoinformation Surface water temperature in the front of the dam Near-surface air temperature Heat exchange The Three Gorges Dam |
| title | The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam |
| title_full | The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam |
| title_fullStr | The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam |
| title_full_unstemmed | The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam |
| title_short | The heat exchange process between surface water and near-surface atmosphere in the front of the Three Gorges Dam |
| title_sort | heat exchange process between surface water and near surface atmosphere in the front of the three gorges dam |
| topic | Surface water temperature in the front of the dam Near-surface air temperature Heat exchange The Three Gorges Dam |
| url | http://www.sciencedirect.com/science/article/pii/S0303243421000799 |
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