South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales
Precipitation over the Tibetan Plateau and surrounding highlands is a crucial process in the hydrological cycle and is very important for local and downstream ecology, and previous research mainly focused on a certain range of timescales. A better understanding of the variability across various time...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-04-01
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| Series: | Advances in Climate Change Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674927823000382 |
| _version_ | 1797816045741801472 |
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| author | Ru-Cong Yu Jian Li Ming-Ming Zhang Ni-Na Li Yin Zhao |
| author_facet | Ru-Cong Yu Jian Li Ming-Ming Zhang Ni-Na Li Yin Zhao |
| author_sort | Ru-Cong Yu |
| collection | DOAJ |
| description | Precipitation over the Tibetan Plateau and surrounding highlands is a crucial process in the hydrological cycle and is very important for local and downstream ecology, and previous research mainly focused on a certain range of timescales. A better understanding of the variability across various timescales, which has been largely ignored, can provide new insight on the regional weather and climate. Here, a north‒south dipole pattern of precipitation shaped by a zonal dipole of the upper-tropospheric temperature is revealed in this region. Both dipole patterns of the precipitation and the accompanied temperature exist from daily to interdecadal scales. The three-dimensional circulation anomalies connecting the temperature and precipitation dipoles are consistent across various timescales. The frequencies of daily events with opposite phases of the temperature dipole modulate the interannual and interdecadal variability in precipitation. The south drying and north wetting pattern over the Tibetan Plateau is an interdecadal manifestation of the precipitation dipole and can be ascribed to the temperature trend favourable for the positive phase of the zonal temperature dipole. The consistent dipole pattern constructs a more complete portrayal of precipitation over the Tibetan Plateau from synoptic scale to climatology. |
| first_indexed | 2024-03-13T08:31:53Z |
| format | Article |
| id | doaj.art-553940a701dd490d86695db5d3269f5a |
| institution | Directory Open Access Journal |
| issn | 1674-9278 |
| language | English |
| last_indexed | 2024-03-13T08:31:53Z |
| publishDate | 2023-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Advances in Climate Change Research |
| spelling | doaj.art-553940a701dd490d86695db5d3269f5a2023-05-31T04:44:01ZengKeAi Communications Co., Ltd.Advances in Climate Change Research1674-92782023-04-01142276285South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescalesRu-Cong Yu0Jian Li1Ming-Ming Zhang2Ni-Na Li3Yin Zhao4State Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology, Chinese Academy of Meteorological Sciences, Beijing 100081, China; Corresponding author.State Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaDepartment of Meteorology, University of Reading, Reading RG6 6AH, UKNational Meteorological Center, China Meteorological Administration, Beijing 100081, ChinaState Key Laboratory of Severe Weather and Institute of Tibetan Plateau Meteorology, Chinese Academy of Meteorological Sciences, Beijing 100081, ChinaPrecipitation over the Tibetan Plateau and surrounding highlands is a crucial process in the hydrological cycle and is very important for local and downstream ecology, and previous research mainly focused on a certain range of timescales. A better understanding of the variability across various timescales, which has been largely ignored, can provide new insight on the regional weather and climate. Here, a north‒south dipole pattern of precipitation shaped by a zonal dipole of the upper-tropospheric temperature is revealed in this region. Both dipole patterns of the precipitation and the accompanied temperature exist from daily to interdecadal scales. The three-dimensional circulation anomalies connecting the temperature and precipitation dipoles are consistent across various timescales. The frequencies of daily events with opposite phases of the temperature dipole modulate the interannual and interdecadal variability in precipitation. The south drying and north wetting pattern over the Tibetan Plateau is an interdecadal manifestation of the precipitation dipole and can be ascribed to the temperature trend favourable for the positive phase of the zonal temperature dipole. The consistent dipole pattern constructs a more complete portrayal of precipitation over the Tibetan Plateau from synoptic scale to climatology.http://www.sciencedirect.com/science/article/pii/S1674927823000382Tibetan plateauDipole of precipitationDaily scaleInterannual scaleInterdecadal scale |
| spellingShingle | Ru-Cong Yu Jian Li Ming-Ming Zhang Ni-Na Li Yin Zhao South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales Advances in Climate Change Research Tibetan plateau Dipole of precipitation Daily scale Interannual scale Interdecadal scale |
| title | South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales |
| title_full | South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales |
| title_fullStr | South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales |
| title_full_unstemmed | South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales |
| title_short | South drying and north wetting over the Tibetan Plateau modulated by a zonal temperature dipole across timescales |
| title_sort | south drying and north wetting over the tibetan plateau modulated by a zonal temperature dipole across timescales |
| topic | Tibetan plateau Dipole of precipitation Daily scale Interannual scale Interdecadal scale |
| url | http://www.sciencedirect.com/science/article/pii/S1674927823000382 |
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