GSTDTAP  > 气候变化
DOI10.1002/joc.5807
A new perspective on solar dimming over the Tibetan Plateau
Lin, Changgui1; Wu, Huanping2; Ou, Tinghai1; Chen, Deliang1,3
2019
发表期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2019
卷号39期号:1页码:302-316
文章类型Article
语种英语
国家Sweden; Peoples R China
英文摘要

Solar radiation changes (dimming/brightening) have recently received growing attention within the research community, although there is currently no generally accepted explanation. This article aims to provide a new perspective for identifying the reasons behind solar dimming/brightening by using long-term measurements of direct and diffuse solar radiation, unlike previous studies which have focused on global solar radiation. We postulate that extinction processes can be more readily revealed by direct and diffuse radiation measurements with the help of a modelling tool that treats the two components separately. An example is presented for Golmud and Lhasa in the northern and southern Tibetan Plateau (TP) respectively, over the period 1957-2013. The following is found: (a) ground-based observed cloud cover alone hardly explains the observed solar dimming at the two sites; (b) both the cloud-free direct radiation transmittivity ((dir)) and diffuse radiation proportion (p(dif)) declined; (c) variations in p(dif) are overwhelmingly dominated by variations in aerosols, while those in (dir) are related to variations in both aerosol and water vapour; (d) on top of the suggested reduced aerosol concentrations, decreased snow cover can partly explain declined diffuse radiation via lowered surface albedo; (e) the decline in (dir) can be partly attributed to the wetting atmosphere via strengthened absorption; and (f) the impact of volcanic eruptions was also identified from such radiative parameters, lasting into the following summer and especially strong in the southern TP.


英文关键词direct and diffuse radiation extinction processes Tibetan Plateau
领域气候变化
收录类别SCI-E
WOS记录号WOS:000459638400023
WOS关键词AEROSOL OPTICAL DEPTH ; VOLCANIC-ERUPTIONS ; RADIATION ; TRANSPORT ; SURFACE ; TRENDS ; CHINA ; WATER ; STRATOSPHERE ; IMPACTS
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/37498
专题气候变化
作者单位1.Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Box 460, SE-40530 Gothenburg, Sweden;
2.China Meteorol Adm, Natl Climate Ctr, Beijing, Peoples R China;
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Lin, Changgui,Wu, Huanping,Ou, Tinghai,et al. A new perspective on solar dimming over the Tibetan Plateau[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(1):302-316.
APA Lin, Changgui,Wu, Huanping,Ou, Tinghai,&Chen, Deliang.(2019).A new perspective on solar dimming over the Tibetan Plateau.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(1),302-316.
MLA Lin, Changgui,et al."A new perspective on solar dimming over the Tibetan Plateau".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.1(2019):302-316.
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