Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas
Abstract The precipitation in the Qilian (QMA) and Tienshan (TMA) mountain areas is one of the main sources of subsurface and surface water in northwestern China (NWC). Based on two datasets, CN05.1 and station‐observed daily precipitation, we found that summer precipitation in 1979–2020 exhibited a...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-06-01
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| Series: | Atmospheric Science Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/asl.1154 |
| _version_ | 1797814017179254784 |
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| author | Qianrong Ma Zhongwai Li Zhiheng Chen Tao Su Yongping Wu Guolin Feng |
| author_facet | Qianrong Ma Zhongwai Li Zhiheng Chen Tao Su Yongping Wu Guolin Feng |
| author_sort | Qianrong Ma |
| collection | DOAJ |
| description | Abstract The precipitation in the Qilian (QMA) and Tienshan (TMA) mountain areas is one of the main sources of subsurface and surface water in northwestern China (NWC). Based on two datasets, CN05.1 and station‐observed daily precipitation, we found that summer precipitation in 1979–2020 exhibited an increasing trend in NWC. The results of rotation empirical orthogonal function (REOF) analysis also separated the increased precipitation patterns in the QMA and TMA from the other REOF modes; the proportion of the precipitation of these areas to the total NWC summer precipitation substantially increased (0.12%⋅year−1 and 0.03%⋅year−1, respectively). According to the moisture budget, the evaporation changes in the QMA and TMA were coherently coupled with precipitation, which suggested the feedback between increasing evaporation and precipitation with the recently warming climate. The precipitation increase was larger than that of evaporation, indicating a net wetting trend in the QMA and TMA. The increase in zonal horizontal and vertical moisture advection terms contributed more to the increased precipitation in the QMA. The increase in meridional moisture advection contributed more to the increased precipitation in the TMA. We concluded comprehensive frameworks of the water vapor transport in climate change in mountain areas in NWC which aimed to contribute to the understanding of arid region hydrology. |
| first_indexed | 2024-03-13T08:01:17Z |
| format | Article |
| id | doaj.art-8aab5764e3584680bc2cc647b4d136fc |
| institution | Directory Open Access Journal |
| issn | 1530-261X |
| language | English |
| last_indexed | 2024-03-13T08:01:17Z |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Atmospheric Science Letters |
| spelling | doaj.art-8aab5764e3584680bc2cc647b4d136fc2023-06-01T14:46:54ZengWileyAtmospheric Science Letters1530-261X2023-06-01246n/an/a10.1002/asl.1154Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areasQianrong Ma0Zhongwai Li1Zhiheng Chen2Tao Su3Yongping Wu4Guolin Feng5College of Physical Science and Technology, Yangzhou University Yangzhou ChinaCollege of Physical Science and Technology, Yangzhou University Yangzhou ChinaKey Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environment Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC‐FEMD) Nanjing University of Information Science & Technology Nanjing ChinaCollege of Physical Science and Technology, Yangzhou University Yangzhou ChinaCollege of Physical Science and Technology, Yangzhou University Yangzhou ChinaCollege of Physical Science and Technology, Yangzhou University Yangzhou ChinaAbstract The precipitation in the Qilian (QMA) and Tienshan (TMA) mountain areas is one of the main sources of subsurface and surface water in northwestern China (NWC). Based on two datasets, CN05.1 and station‐observed daily precipitation, we found that summer precipitation in 1979–2020 exhibited an increasing trend in NWC. The results of rotation empirical orthogonal function (REOF) analysis also separated the increased precipitation patterns in the QMA and TMA from the other REOF modes; the proportion of the precipitation of these areas to the total NWC summer precipitation substantially increased (0.12%⋅year−1 and 0.03%⋅year−1, respectively). According to the moisture budget, the evaporation changes in the QMA and TMA were coherently coupled with precipitation, which suggested the feedback between increasing evaporation and precipitation with the recently warming climate. The precipitation increase was larger than that of evaporation, indicating a net wetting trend in the QMA and TMA. The increase in zonal horizontal and vertical moisture advection terms contributed more to the increased precipitation in the QMA. The increase in meridional moisture advection contributed more to the increased precipitation in the TMA. We concluded comprehensive frameworks of the water vapor transport in climate change in mountain areas in NWC which aimed to contribute to the understanding of arid region hydrology.https://doi.org/10.1002/asl.1154increasing contributionmoisture budgetQilian mountainous areasummer precipitationTienshan mountainous area |
| spellingShingle | Qianrong Ma Zhongwai Li Zhiheng Chen Tao Su Yongping Wu Guolin Feng Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas Atmospheric Science Letters increasing contribution moisture budget Qilian mountainous area summer precipitation Tienshan mountainous area |
| title | Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas |
| title_full | Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas |
| title_fullStr | Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas |
| title_full_unstemmed | Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas |
| title_short | Moisture changes with increasing summer precipitation in Qilian and Tienshan mountainous areas |
| title_sort | moisture changes with increasing summer precipitation in qilian and tienshan mountainous areas |
| topic | increasing contribution moisture budget Qilian mountainous area summer precipitation Tienshan mountainous area |
| url | https://doi.org/10.1002/asl.1154 |
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