80f7f1a2-52a3-4d40-8e63-252bda6fc83b eng Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org/ 2012-03-11T16:23:26 ISO 19115:2003/19139 1.0 Climatology of aerosol radiative properties in the free troposphere. 2011-02-02T00:00:00 Atmospheric Research (2011) 4 365-393 Atmospheric Research (2011) Issue: 4, Publisher: Elsevier B.V., Pages: 365-393 Atmospheric Research (2011) Issue: 4, Publisher: Elsevier B.V., Pages: 365-393 01698095 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. Over the last several decades the number of mountaintop observatories continuously measuring in-situ aerosol radiative properties has increased significantly from a single station (Mauna Loa, USA) in the 1970's to at least ten observatories actively making these measurements today. By taking this data set as a whole and developing a self-consistent climatology, the combined observatory measurements of free tropospheric aerosol radiative properties have the potential to contribute to aerosol-climate research in a way that far exceeds the contribution from individual observatories. For example, this type of analysis may help constrain chemical transport models, validate satellite measurements, and quantify the influence of smoke and dust episodes on free troposphere aerosol properties. Here we present statistics of means, variability, and trends of aerosol radiative properties, including light scattering, light absorption, light extinction, single scattering albedo, Ångström exponent, hemispheric backscatter fraction and radiative forcing efficiency, from various high altitude measurements. These climatologies utilize data from ten mountaintop observatories in the 20-50ºN latitude band: Mauna Loa, USA; Lulin Mountain, Taiwan; Pyramid, Nepal; Izaña, 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. Using this cloud- and boundary layer contamination- screened data set we address the following questions: (1) What are the similarities and differences in the means, variability and trends of free-tropospheric aerosol radiative properties at a wide range of locations? (2) What is the relative importance of aerosol amount and aerosol optical properties for direct radiative forcing calculations? Delene and Ogren (2002) showed that the amount of aerosol was of primary importance while the aerosol optical properties were of secondary importance to direct radiative forcing calculations for the four boundary layer sites they studied. (3) How do these in-situ climatologies of free tropospheric light extinction compare to the satellite-derived climatologies presented by Kent et al., 1998? (4) Do aerosol events (e.g., smoke transport) have a significant influence on climatological values? Paolo Bonasoni Institute of Atmospheric Sciences and Climate (ISAC) - CNR +39 0516399590 +39 0516399652 Via Gobetti 101 BOLOGNA BO 40129 Italy p.bonasoni@isac.cnr.it www.isac.cnr.it Paolo Laj CNRS Laboratory of Meteorology Physics - Laboratory of Glaciology + 33685628874 + 33473405132 Avenue des Landais Aubiere Cedex 63177 France aj@lgge.obs.ujf-grenoble.fr http://wwwobs.univ-bpclermont.fr/ Elisabeth Andrews ESRL, NOAA, 325 Broadway Boulder CO 80305 United States of America http://www.esrl.noaa.gov/ WWW:LINK-1.0-http--partners John A. Ogren ESRL, NOAA, +1 3034976210 325 Broadway Boulder CO 80305 United States of America John.A.Ogren@noaa.gov http://www.esrl.noaa.gov WWW:LINK-1.0-http--partners Angela Marinoni Institute of Atmospheric Sciences and Climate (ISAC) - CNR +39 0516399597 +39 0516399652 Via Gobetti 101 Bologna BO 40129 Italy a.marinoni@isac.cnr.it www.isac.cnr.it Emilio Cuevas Izaña Atmospheric Research Centre, AEMET Ctra. La Esperanza a El Portillo, Km 37.5 Izaña La Orotava 38311 Spain ecuevas@inm.es www.izana.org/ Sergio Rodriguez Izaña Atmospheric Research Centre, AEMET +34 922151718 C/La Marina Planta 6, Santa Cruz de Tenerife Canary Islands 38071 Spain srodriguezg@aemet.es http://www.izana.org/index.php?option=com_content&view=article&id=94&Itemid=140&lang=en WWW:LINK-1.0-http--related JunYing Sun Key Laboratory for Atmospheric Chemistry, Centre for Atmosphere Watch and Services, Chinese Academy of Meteorological Sciences, China Meteorological Administration +86 1068407943 +86 13366533106 +86 1062176414 Zhongguancun Nandajie 46 Beijing 100081 China, Mainland jysun@cams.cma.gov.cn www.cams.cma.gov.cn WWW:LINK-1.0-http--partners Daniel Jaffe University of Washington, Department of Atmospheric Sciences +1 4253525357 +1 4253525233 18115 Campus Way NE Bothell WA 98011-8246 United States of America djaffe@u.washington.edu http://www.atmos.washington.edu/jaffegroup WWW:LINK-1.0-http--related Urs Baltensperger Paul Scherrer Institute, Laboratory of Atmospheric Chemistry +41 563102408 +41 563104525 Villigen PSI CH-5232 Switzerland urs.baltensperger@psi.ch http://lac.web.psi.ch/LAC_Staff/personal_homepages/baltensperger_personal.html WWW:LINK-1.0-http--related Emily V. Fischer Harvard University School of Engineering and Applied Sciences +1 6039864241 Cambridge MA 02138 United States of America efischer@seas.harvard.edu http://people.seas.harvard.edu/~efischer WWW:LINK-1.0-http--related Ernest Weingartner Paul Scherrer Institute, Laboratory of Atmospheric Chemistry, +41 563102405 +41 563104525 Villigen PSI CH-5232 Switzerland ernest.weingartner@psi.ch http://lac.web.psi.ch/LAC_Staff/personal_homepages/weingartner_personal.html WWW:LINK-1.0-http--related Martine Collaud Coen Climate Division MeteoSchweiz +41 0266626278 +41 0266626211 +41 0266626212 Les Invuardes Payerne CH-1530 Switzerland martine.collaud@meteoswiss.ch http://4dweb.proclim.ch/4dcgi/proclim/en/Detail_Person?collaudcom.payerne WWW:LINK-1.0-http--related Sangeeta Sharma Max Planck Institute of Microstructure Physics +49 03455582913 +49 03455582765 Weinberg 2 Halle D-06120 Germany sharma@mpi-halle.mpg.de http://www1.mpi-halle.mpg.de/~sharma/ WWW:LINK-1.0-http--related AnneMarie Macdonald Environment Canada +1 4167394465 +1 4167394281 4905 Dufferin Street Toronto Ontario M3H 5T4 Canada annemarie.macdonald@ec.gc.ca http://www.ec.gc.ca/scitech/default.asp?lang=En&n=F97AE834-1&xsl=scitechprofile&xml=F97AE834-A762-47A6-A2D9-9C397FD72F37&formid=74AD289A-EE16-41E0-BDBF-80F6BA51B230 WWW:LINK-1.0-http--related W. Richard Leaitch Environment Canada +1 4167394616 +1 4167395704 4905 Dufferin Street Toronto Ontario M3H 5T4 Canada Richard.Leaitch@ec.gc.ca http://www.ec.gc.ca/scitech/default.asp?lang=En&n=F97AE834-1&xsl=scitechprofile&xml=F97AE834-A762-47A6-A2D9-9C397FD72F37&formid=6FED2B14-7E87-473F-857F-0286D0F95988 WWW:LINK-1.0-http--related N.H. Lin Department of Atmospheric Sciences, National Central University, + 88634254069 + 88634254069 Chung-Li 320 China, Taiwan Prov of nhlin@atm.ncu.edu.tw http://www.atm.ncu.edu.tw/english/faculty/faculty06.htm WWW:LINK-1.0-http--related Jordan Stamenov Institute for Nuclear Research and Nuclear Energy Sofia BG-1784 Bulgaria Ivo Kalapov Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences +359 889218154 +359 888541482 +359 29753619 Tsarigradsko chaussee Blvd. Sofia BG-1784 Bulgaria kalapov@inrne.bas.bg http://beo-db.inrne.bas.bg/moussala/ WWW:LINK-1.0-http--partners Anne Jefferson ESRL,NOAA +1 3034976493 325 Broadway Boulder CO 80305 United States of America Anne.Jefferson@noaa.gov www.esrl.noaa.gov WWW:LINK-1.0-http--partners Elsevier Science Publishing Company nlinfo@sciencedirect.com http://www.elsevier.com/wps/find/homepage.cws_home Patrick Sheridan ESRL,NOAA +1 3034976672 325 Broadway Boulder CO 80305-3337 United States of America Patrick.Sheridan@noaa.gov http://www.esrl.noaa.gov/gmd/about/stafflist_group.html WWW:LINK-1.0-http--related https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=80f7f1a2-52a3-4d40-8e63-252bda6fc83b&fname=mountain_witness__s.png thumbnail png SHARE aerosol radiative properties free troposphere climatology High altitude mountain Mauna Loa Canada Whistler Mountain USA Lulin Mountain Taiwan Nepal Climate Observatory - Pyramid Izaña Spain Mount Waliguan China Beo Moussala Bulgaria Mount Bachelor Monte Cimone Italy Jungfraujoch Switzerland eng climatologyMeteorologyAtmosphere environment -180 180 -90 90 https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=37542&fname=andrews_co_authors_110201.pdf&access=private WWW:DOWNLOAD-1.0-http--download andrews_co_authors_110201.pdf Full text(pdf):"Climatology of Aerosol Radiative Properties in the Free Troposphere" https://geoportal.mountaingenius.org/webapp/srv/en/resources.get?id=37542&fname=Abstract_aerosol_optical_properties_climatology.pdf&access=private WWW:DOWNLOAD-1.0-http--download Abstract_aerosol_optical_properties_climatology.pdf Abstract:"Climatology of Aerosol Radiative Properties in the Free Troposphere." http://www.sciencedirect.com/science/article/pii/S0169809511002857 WWW:LINK-1.0-http--partners Abstract"Climatology of Aerosol Radiative Properties in the Free Troposphere." Climatology of aerosol radiative properties in the free troposphere Review Article Atmospheric Research, Volume 102, Issue 4, December 2011, Pages 365-393 E. Andrews, J.A. Ogren, P. Bonasoni, A. Marinoni, E. Cuevas, S. Rodríguez, J.Y. Sun, D.A. Jaffe, E.V. Fischer, U. Baltensperger, E. Weingartner, M. Collaud Coen, S. Sharma, A.M. Macdonald, W.R. Leaitch, N.-H. Lin, P. Laj, T. Arsov, I. Kalapov, A. Jefferson, P. Sheridan