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Impact of oceans on climate change in drylands
Guan, Xiaodan; Ma, Jieru; Huang, Jianping; Huang, Ruixin1,2; Zhang, Lei; Ma, Zhuguo3
AbstractDrylands account for approximately 41% of the global total land area. Significant warming and rare precipitation in drylands result in a fragile ecology and deterioration of the living environment, making it more sensitive to global climate change. As an important regulator of the Earth's climate system, the oceans play a vital role in the process of climate change in drylands. In modern climate change in particular, the impact of marine activities on climate change in drylands cannot be neglected. This paper reviews the characteristics of climate change in drylands over the past 100 years, and summarizes the researches conducted on the impact of marine activities on these changes. The review focuses on the impact of the Pacific Decadal Oscillation (PDO), Atlantic Multidecadal Oscillation (AMO), El Nino and La Nina on climate change in drylands, and introduces the mechanisms by which different oceanic oscillation factors synergistically affect climate change in drylands. Studies have shown that global drylands have experienced a significant intensification in warming in the past 100 years, which shows obvious characteristics of interdecadal dry/wet variations. The characteristics of these changes are closely related to the oscillatory factors of the oceanic interdecadal scale. Different phase combinations of oceanic oscillation factors significantly change the land-sea thermal contrast, which in turn affects the westerly jet, planetary wave and blocking frequency, resulting in changes in the temperature and dry/wet characteristics of drylands. With the intensification of climate change in drylands, the impact of marine activities on these regions will reveal new characteristics in the future, which will increase the uncertainty of future climate change in drylands and intensify the impact of these drylands on global climate.
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Document Type期刊论文
Affiliation1.Lanzhou Univ, Key Lab Semiarid Climate Change, Minist Educ, Coll Atmospher Sci, Lanzhou 730000, Gansu, Peoples R China
2.Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA
3.Chinese Acad Sci, State Key Lab Trop Oceanog, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
4.Chinese Acad Sci, Key Lab Reg Climate Environm Temperate East Asia, Inst Atmospher Phys, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Guan, Xiaodan,Ma, Jieru,Huang, Jianping,et al. Impact of oceans on climate change in drylands[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(6):891, 908.
APA Guan, Xiaodan,Ma, Jieru,Huang, Jianping,Huang, Ruixin,Zhang, Lei,&Ma, Zhuguo.(2019).Impact of oceans on climate change in drylands.SCIENCE CHINA-EARTH SCIENCES,62(6),891.
MLA Guan, Xiaodan,et al."Impact of oceans on climate change in drylands".SCIENCE CHINA-EARTH SCIENCES 62.6(2019):891.
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