Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/2011JD017370 |
An assessment of the surface longwave direct radiative effect of airborne dust in Zhangye, China, during the Asian Monsoon Years field experiment (2008) | |
Hansell, Richard A.1,2; Tsay, Si-Chee2; Hsu, N. Christina2; Ji, Qiang1,2; Bell, Shaun W.2,3; Holben, Brent N.2; Welton, Ellsworth J.2; Roush, Ted L.4; Zhang, W.5; Huang, J.5; Li, Zhanqing1,6; Chen, H.7 | |
通讯作者 | Hansell, Richard A. |
来源期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2012 |
卷号 | 117 |
英文摘要 | In April-June 2008, NASA Goddard’s ground-based mobile laboratories (SMART-COMMIT) were deployed to Zhangye China (39.0 degrees N; 101 degrees W) to support the Asian Monsoon Years field experiment and the East Asian Study of Tropospheric Aerosols and Impact on Regional Climate. One of the primary objectives at Zhangye, a semi-arid region located between the Taklimakan and Gobi Deserts, was to capture and characterize dust aerosols near the source and to quantify their direct radiative effects (DRE). A regional dust optical model was constructed by combining previously measured soil mineralogy data at Zhangye with COMMIT’s particle microphysical measurements. During a 2-week period of heightened dust activity, retrieved longwave (LW) aerosol optical thickness (tau) from SMART’s Atmospheric Emitted Radiance Interferometer was used in the Fu-Liou radiative transfer model to derive LW instantaneous DRE (DRELW) at the surface, top of atmosphere, and heating rate profiles for cloud-free conditions. Conservatively, surface instantaneous DRELW and LW forcing efficiency range from about 2-20 Wm(-2) and 31-35 Wm(-2)tau(-1) (0 <= tau <= 83), respectively. The significance of DRELW relative to its shortwave counterpart was estimated to be between 51 and 58%, but of opposite sign, partly compensating shortwave surface cooling. Compared to Saharan dust observed during the NAMMA-2006 field experiment at Cape Verde, dust LW forcing efficiency for this study was found to be a factor of two larger stemming from differences in environmental and surface conditions, aerosol absorption, and Zhangye’s close proximity to major desert sources. Relative to observed and modeled ranges in surface DRELW for clouds (similar to 30-80 Wm(-2)) and greenhouse gases (similar to 2 Wm(-2)), this study’s upper range in DRELW represents a significant perturbation to the climate system with important implications for better understanding regional changes in surface temperatures and moisture budgets. |
类型 | Article |
语种 | 英语 |
国家 | USA ; Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000306237000002 |
WOS关键词 | OPTICAL-CONSTANTS ; AEROSOLS ; TEMPERATURE ; MINERALS ; SAHARA ; IMPACT |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
来源机构 | 兰州大学 ; 中国科学院大气物理研究所 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173609 |
作者单位 | 1.Univ Maryland, ESSIC, College Pk, MD 20740 USA; 2.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 3.Sci Syst & Applicat Inc, Lanham, MD USA; 4.NASA, Ames Res Ctr, Moffett Field, CA 94035 USA; 5.Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China; 6.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20740 USA; 7.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Hansell, Richard A.,Tsay, Si-Chee,Hsu, N. Christina,et al. An assessment of the surface longwave direct radiative effect of airborne dust in Zhangye, China, during the Asian Monsoon Years field experiment (2008)[J]. 兰州大学, 中国科学院大气物理研究所,2012,117. |
APA | Hansell, Richard A..,Tsay, Si-Chee.,Hsu, N. Christina.,Ji, Qiang.,Bell, Shaun W..,...&Chen, H..(2012).An assessment of the surface longwave direct radiative effect of airborne dust in Zhangye, China, during the Asian Monsoon Years field experiment (2008).JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,117. |
MLA | Hansell, Richard A.,et al."An assessment of the surface longwave direct radiative effect of airborne dust in Zhangye, China, during the Asian Monsoon Years field experiment (2008)".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 117(2012). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。