Climatology of aerosol radiative properties in the free troposphere

被引：112

作者：

Andrews, E. ^{[1
,2
]}

Ogren, J. A. ^{[1
]}

Bonasoni, P. ^{[3
]}

Marinoni, A. ^{[3
]}

Cuevas, E. ^{[4
]}

Rodriguez, S. ^{[4
]}

Sun, J. Y. ^{[5
]}

Jaffe, D. A. ^{[6
]}

Fischer, E. V. ^{[6
,7
]}

Baltensperger, U. ^{[8
]}

Weingartner, E. ^{[8
]}

Coen, M. Collaud ^{[9
]}

Sharma, S. ^{[10
]}

Macdonald, A. M. ^{[10
]}

Leaitch, W. R. ^{[10
]}

Lin, N. -H. ^{[11
]}

Laj, P. ^{[12
]}

Arsov, T. ^{[13
]}

Kalapov, I. ^{[13
]}

Jefferson, A. ^{[1
,2
]}

Sheridan, P. ^{[1
]}

机构：

[1] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA

[2] Univ Colorado, CIRES, Boulder, CO 80305 USA

[3] ISAC CNR, Inst Atmospher Sci & Climate, I-40129 Bologna, Italy

[4] Joint Res Unit CSIC Studies Atmospher Pollut, Izana Atmospher Res Ctr, AEMET, Santa Cruz De Tenerife 38071, Canary Islands, Spain

[5] Chinese Acad Meteorol Sci, Key Lab Atmospher Chem, Beijing 100081, Peoples R China

[6] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA

[7] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[8] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland

[9] MeteoSwiss, Fed Off Meteorol & Climatol, CH-1530 Payerne, Switzerland

[10] Environm Canada, Toronto, ON M3H 5T4, Canada

[11] Natl Cent Univ, Dept Atmospher Sci, Chungli 320, Taiwan

[12] UJF Grenoble 1 CNRS, LGGE UMR 5183, F-38041 Grenoble, France

[13] Inst Nucl Energy Res, BG-1784 Sofia, Bulgaria

来源：

ATMOSPHERIC RESEARCH | 2011年 / 102卷 / 04期

基金：

美国国家科学基金会;

关键词：

Aerosol radiative properties; Free troposphere; Climatology; LONG-RANGE TRANSPORT; SUBTROPICAL NORTHEAST ATLANTIC; FILTER-BASED MEASUREMENTS; ALPINE SITE JUNGFRAUJOCH; VISIBLE-LIGHT ABSORPTION; OPTICAL-PROPERTIES; WAVELENGTH DEPENDENCE; SIZE DISTRIBUTION; CANARY-ISLANDS; MT.-CIMONE;

D O I：

10.1016/j.atmosres.2011.08.017

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

High altitude mountaintop observatories provide the opportunity to study aerosol properties in the free troposphere without the added expense and difficulty of making airborne measurements. Climatologies for free tropospheric aerosol radiative properties in cloud-free air, including light scattering, light absorption, light extinction, single scattering albedo, Angstrom exponent, hemispheric backscatter fraction and radiative forcing efficiency, from twelve high altitude (2.2-5.1 km) measurement platforms are presented at low relative humidity and at standard temperature and pressure. These climatologies utilize data from ten mountaintop observatories in the 20-50 degrees N latitude band: Mauna Loa, USA; Lulin Mountain, Taiwan: Nepal Climate Observatory Pyramid; Izana, Spain; Mount Waliguan, China; Beo Moussala, Bulgaria; Mount Bachelor, USA: Monte Cimone, Italy; Jungfraujoch, Switzerland; Whistler Mountain, Canada. Results are also included from two multi-year, in-situ aerosol vertical profiling programs: Southern Great Plains, USA and Bondville, USA. The amount of light absorption and scattering observed at these high altitude sites either peaks in the spring or it has a broad spring to summer enhancement. The seasonal variation of the aerosol single scattering albedo, backscatter fraction and Angstrom exponent changes from site to site but the timing can be related to aerosol sources and transport processes known to impact the individual sites. The seasonal variation of in-situ aerosol light extinction from these high altitude measurements is in excellent agreement with extinction values derived from CALIPSO lidar measurements. Analysis of the systematic variability among in-situ aerosol properties shows that these relationships can be used to infer aerosol types. In particular, the relationship between single scattering albedo and Angstrom exponent can indicate the presence of dust aerosol. Radiative forcing efficiency (RFE = aerosol forcing/aerosol optical depth) is used to

引用

页码：365 / 393

页数：29

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