The Effects of Sandstorms on the Climate of Northwestern China
In this paper, we investigate the observational direct radiation characteristics of several sandstorm events in Northwestern China (NWC). A simulating sensitivity experiment was designed to reduce the downward radiation in RegCM4 to investigate the climatic impacts and persistence of the direct radi...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2017/4035609 |
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| _version_ | 1832563683580968960 |
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| author | Tiantian Hu Di Wu Yaohui Li Chenghai Wang |
| author_facet | Tiantian Hu Di Wu Yaohui Li Chenghai Wang |
| author_sort | Tiantian Hu |
| collection | DOAJ |
| description | In this paper, we investigate the observational direct radiation characteristics of several sandstorm events in Northwestern China (NWC). A simulating sensitivity experiment was designed to reduce the downward radiation in RegCM4 to investigate the climatic impacts and persistence of the direct radiation effect (DRE) from dust aerosols in sandstorms. The results show that dust aerosols in sandstorms can change the radiation heating rate of the atmosphere, heating the air in the middle and low troposphere and cooling Earth’s surface. The climate effects of continuous and intense sandstorms in April in NWC can reach downstream areas such as Southeast and Northeast China and can persist for months. The dust aerosols in sandstorms can enhance diabatic heating and moisture loss. Therefore, dust storms lead to the environment in NWC becoming warmer and dryer. Through analysis of the dust tracer total burden, we identified that the enhancement of the dust total burden in the arid region illustrated that the DRE of dust aerosol in sandstorm process can react with the dust emission, thus forming a self-feedback loop. The DRE can persist three months. |
| format | Article |
| id | doaj-art-0a813c53e7054a8bb665223f4de8b0dc |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-0a813c53e7054a8bb665223f4de8b0dc2025-02-03T01:12:42ZengWileyAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/40356094035609The Effects of Sandstorms on the Climate of Northwestern ChinaTiantian Hu0Di Wu1Yaohui Li2Chenghai Wang3Key Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmosphere Science, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmosphere Science, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmosphere Science, Lanzhou University, Lanzhou 730000, ChinaKey Laboratory of Arid Climate Change and Disaster Reduction of Gansu Province, College of Atmosphere Science, Lanzhou University, Lanzhou 730000, ChinaIn this paper, we investigate the observational direct radiation characteristics of several sandstorm events in Northwestern China (NWC). A simulating sensitivity experiment was designed to reduce the downward radiation in RegCM4 to investigate the climatic impacts and persistence of the direct radiation effect (DRE) from dust aerosols in sandstorms. The results show that dust aerosols in sandstorms can change the radiation heating rate of the atmosphere, heating the air in the middle and low troposphere and cooling Earth’s surface. The climate effects of continuous and intense sandstorms in April in NWC can reach downstream areas such as Southeast and Northeast China and can persist for months. The dust aerosols in sandstorms can enhance diabatic heating and moisture loss. Therefore, dust storms lead to the environment in NWC becoming warmer and dryer. Through analysis of the dust tracer total burden, we identified that the enhancement of the dust total burden in the arid region illustrated that the DRE of dust aerosol in sandstorm process can react with the dust emission, thus forming a self-feedback loop. The DRE can persist three months.http://dx.doi.org/10.1155/2017/4035609 |
| spellingShingle | Tiantian Hu Di Wu Yaohui Li Chenghai Wang The Effects of Sandstorms on the Climate of Northwestern China Advances in Meteorology |
| title | The Effects of Sandstorms on the Climate of Northwestern China |
| title_full | The Effects of Sandstorms on the Climate of Northwestern China |
| title_fullStr | The Effects of Sandstorms on the Climate of Northwestern China |
| title_full_unstemmed | The Effects of Sandstorms on the Climate of Northwestern China |
| title_short | The Effects of Sandstorms on the Climate of Northwestern China |
| title_sort | effects of sandstorms on the climate of northwestern china |
| url | http://dx.doi.org/10.1155/2017/4035609 |
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