Aerosol Composition and Radiative Properties
|
|
- Cori Dinah Lucas
- 5 years ago
- Views:
Transcription
1 Aerosol Composition and Radiative Properties Urs Baltensperger Laboratory of Atmospheric Chemistry Paul Scherrer Institut, 5232 Villigen PSI, Switzerland WMO-BIPM Workshop Geneva, 30 March 1 April 2010
2 Examples: Aerosols particles: Solid or liquid particles suspended in the atmosphere PM10 = Particles with aerodynamic diameter <10 m Diesel soot: ca. 0.1 m Ammonium sulfate: ca. 0.1 m Pollen: m Sea salt: m Mineral dust: m
3 Aerosols affect our health and have an impact on climate Source:
4 Direct and indirect aerosol effect on climate Direct effect: Scattering and absorption of incoming sunlight by aerosol particles Indirect effect: The number concentration of cloud condensation nuclei (CCN) influences the cloud droplet size and thereby changes the cloud albedo and lifetime
5 Indirect aerosol effect Indirect effect Large droplets Weak reflection Small droplets Strong reflection Number of CCN influences the droplet number and size (Twomey-Effect) and thereby the cloud albedo and lifetime.
6 Some of the major issues of aerosol particles Aerosol particles have a very wide variety of sources Many emission inventories have large uncertainties A large fraction of aerosol mass is secondary (i.e., they are formed in the atmosphere from gaseous precursors) Many emission inventories of precursors have large uncertainties as well (e.g. VOC s) The aerosol yield from gaseous precursors has uncertainties of up to a factor of 10 Impact is not only defined by mass, but also by size distribution and morphology of particles Short residence time (~1 week) results in high spatial variability, which asks for many stations Many of the components are semivolatile, resulting in measurement issues (temperature dependence) Aerosols cannot be packed into a bottle and sent around for certification
7 Uncertainty in the radiative forcing of black carbon (BC) ( ) IPCC value for forcing by BC For comparison: CO 2 forcing is 1.6 W m -2 Chung and Seinfeld (JGR 2002)
8 The uncertainty in the aerosol forcing is a major reason for our limited understanding of the total radiative forcing IPCC (2007)
9 WMO GAW SAG: Scientific Advisory Group For Aerosols List of comprehensive aerosol measurements with a subset of core variables (identified in bold) that are recommended by the GAW Scientific Advisory Group on Aerosols for long-term measurements in the global network. ftp://ftp.wmo.int/documents/publicweb/arep/gaw/gaw153.pdf GAW Report # 153. WMO/GAW Aerosol Measurement procedures guidelines and recommendations (September 2003) Continuous Measurement 1. Multiwavelength optical depth 2. Mass in two size fractions 3. Major chemical components in two size fractions 4. Light absorption coefficient 5. Light scattering coefficient at various wavelengths 6. Hemispheric backscattering coefficient at various wavelengths 7. Aerosol number concentration 8. Cloud condensation nuclei at 0.5% supersaturation Intermittent Measurement 1. Aerosol size distribution 2. Detailed size fractionated chemical composition 3. Dependence on relative humidity 4. CCN spectra (various supersaturations) 5. Vertical distribution of aerosol properties
10 In an ideal world There is an agreed method Instruments of different institutions have successfully been intercompared There is a hierarchy of standards
11 In an ideal world There is an agreed method Instruments of different institutions have successfully been intercompared There is a hierarchy of standards The ideal world does not exist for any of the aerosol variables
12 Closest to the ideal world: Aerosol optical depth (i.e., aerosol extinction coefficient integrated over full column) Plus many other national networks (Russia, ) Aeronet Different instruments, Different calibration procedures, but: AOD usually shows excellent agreement between proper instruments Can also be measured from satellites
13 A WMO/GAW Experts Workshop A Global Surface-Based Network for Long Term Observations of Column Aerosol Optical Properties March 2004, WORCC Davos, GAW Report # 162 ftp://ftp.wmo.int/documents/publicweb/arep/gaw/gaw162.pdf There is still a lack of coordination between networks, but there is an agreement for further harmonization under the lead of the SAG
14 Vertical profiles In addition: - MPLNET, a global network - Satellites Different instruments, different procedures, much less agreement between data than for AOD
15 Distribution of stations ALINE, Latin America AD-Net, East Asia CIS-LINET, Commonwealth of Independent States EARLINET, Europe NDACC, Global Stratosphere REALM, Eastern North America MPLNET, Global, Micropulse Lidar
16 Plan for the implementation of the GAW Aerosol Lidar Observation Network GALION, WMO/GAW Report No
17 PM10, PM2.5 and/or PM1 and chemistry Largely separated networks, Within individual networks: regular quality control, but mostly no formally established intercomparison between networks EUSAAR
18 The worst of all possible situations: Organic and elemental carbon Schmid et al., 2001: Factor of 10 difference between individual methods; Today: Factor of ~2 Until recently two competing procedures in the US, from which the IMPROVE procedure survived Today, intercomparison between IMPROVE, ENV-CANADA and EUSAAR (Europe): still large discrepancies. We do not even have decent reference samples: reference material NIST 8785 was shown to have drifts and inhomogeneities in their samples. A possible way out: use advanced optical methods (e.g., SP2) to determine black carbon, rather than chemical determination of EC.
19 More promising: Physical and optical properties Advantage : no established network when SAG started in 1997 (except NOAA) Adoption of guidelines by SAG (GAW Report # 153, 2003) by most stations Further development involved all major players, under the lead of the Aerosol SAG (ftp://ftp.wmo.int/documents/publicweb/arep/gaw/gaw153.pdf)
20 EUSAAR: a Blueprint for harmonization Example: Stations reporting physical or optical properties in Europe: in 2002 in 2008 Stations are using the same protocol, Instruments are regularly intercompared, Data are stored in agreed format in World Data Center for Aerosols, Some recommendations were transferred to the German UBA, the German DWD, and to the British National Physical Laboratory, NPL
21 Long-term trends are becoming possible Example: Jungfraujoch, Switzerland, 3580 m asl 10 years of data are necessary June - August: no significant trend of b s, b abs, and CN September - December: significant positive trend of 2-4% per year (for b s, b abs, and CN) Collaud-Coen et al. JGR 2007
22 Capacity building is an important issue On-site audits (mainly done by World Calibration Center for Aerosol Physics) Instrument intercomparisons Traveling standards (size distribution, PFR for AOD measurement) Training courses Twinning activities
23 Towards an integrated aerosol approach
24 An important issue for this integration in situ variables are measured dry (<40%RH), for comparison e.g. with satellite products these need to be converted to ambient conditions Example: Enhancement of scattering coefficient with increasing RH
25 Summary Aerosol observations have made great progress in the last decade, in method development, standardization, harmonization between networks, capacity building, and data availability (at new World data center for aerosols, Challenges remain, in all above aspects We need to work together towards an Integrated observing system building on satellite, ground-based remote sensing and in situ data
26 Where could BIPM contribute? Formulating SOPs Supporting intercomparisons Providing suitable reference maetrials Develop standards for aerosol number concentration Develop standards for sampling inlets and sample conditioning Transferring knowledge to instrument manufacturers etc.. A representative of BIPM in the Aerosol SAG could be useful
27 Thank you for your attention
Update from SAG Aerosol April 27, 2011 John A. Ogren Chairman, SAG Aerosol
Update from SAG Aerosol April 27, 2011 John A. Ogren Chairman, SAG Aerosol Updates to List of Recommended Measurements Removed "core variable" designation Moved some variables from
More informationCHAPTER 8. AEROSOLS 8.1 SOURCES AND SINKS OF AEROSOLS
1 CHAPTER 8 AEROSOLS Aerosols in the atmosphere have several important environmental effects They are a respiratory health hazard at the high concentrations found in urban environments They scatter and
More informationEuropean ceilometer and lidar networks for aerosol profiling and aviation safety the German contribution
European ceilometer and lidar networks for aerosol profiling and aviation safety the German contribution Werner Thomas Deutscher Wetterdienst (DWD) Hohenpeissenberg Meteorological Observatory www.dwd.de/ceilomap
More informationMonitoring Arctic Aerosols
Monitoring Arctic Aerosols Dave Hofmann with contributions from Russ Schnell, Bob Stone and John Ogren NOAA Earth System Research Laboratory Boulder, Colorado, USA Presented at the Hemispheric Transport
More informationChoosing the proper technique for measuring the particle light absorption
Sino-German Symposium on Soot and its Climatic, Environmental and Health Impacts Choosing the proper technique for measuring the particle light absorption Development of an absorption reference Beijing,
More informationWhat are Aerosols? Suspension of very small solid particles or liquid droplets Radii typically in the range of 10nm to
What are Aerosols? Suspension of very small solid particles or liquid droplets Radii typically in the range of 10nm to 10µm Concentrations decrease exponentially with height N(z) = N(0)exp(-z/H) Long-lived
More informationAerosols and climate. Rob Wood, Atmospheric Sciences
Aerosols and climate Rob Wood, Atmospheric Sciences What are aerosols? Solid or liquid particles suspended in air Sizes range from a few nm to a few thousand nm Huge range of masses Where do aerosols come
More informationCan a change of single scattering albedo in Amami-Oshima in a low pressure condition be explained by GCM simulations?
Can a change of single scattering albedo in Amami-Oshima in a low pressure condition be explained by GCM simulations? Daisuke Goto 1, Toshihiko Takemura 2, Nick Schutgens 1, Haruo Tsuruta 1, and Teruyuki
More informationAerosol. Challenge: Global Warming. Observed warming during 20 th century, Tapio. 1910s. 1950s. 1990s T [Kelvin]
Aerosol Challenge: Global Warming 1910s 1950s 1990s 2 1 0 +1 +2 T [Kelvin] Observed warming during 20 th century, Tapio Schneider, J. Climate, 2001 1 Aerosols are liquid or solid particles suspended in
More informationHow good are our models?
direct Estimates of regional and global forcing: ^ How good are our models? Bill Collins with Andrew Conley, David Fillmore, and Phil Rasch National Center for Atmospheric Research Boulder, Colorado Models
More informationINSITU project within AeroCom Phase III: Description and Model Output Request
INSITU project within AeroCom Phase III: Description and Model Output Request Primary Contact: Secondary Contacts: Betsy Andrews (betsy.andrews@noaa.gov) Lauren Schmeisser (lauren.schmeisser@noaa.gov),
More informationAerosol Monitoring and Modeling
Aerosol Monitoring and Modeling Olivier Boucher Presentation to ECMWF seminar on Global Earth-System Monitoring 5-9 September 2005 Page 1 Aerosols are integral part of the Earth s system. CCN f(wind,convection)
More informationclimate change Contents CO 2 (ppm)
climate change CO 2 (ppm) 2007 Joachim Curtius Institut für Physik der Atmosphäre Universität Mainz Contents 1. Summary 2. Background 3. Climate change: observations 4. CO 2 5. OtherGreenhouse Gases (GHGs):
More informationAerosols AP sizes AP types Sources Sinks Amount and lifetime Aerosol radiative effects. Aerosols. Trude Storelvmo Aerosols 1 / 21
Aerosols Trude Storelvmo Aerosols 1 / 21 Aerosols: Definition Definition of an aerosol: disperse system with air as carrier gas and a solid or liquid or a mixture of both as disperse phases. Aerosol particles
More informationSatellite analysis of aerosol indirect effect on stratocumulus clouds over South-East Atlantic
1/23 Remote sensing of atmospheric aerosol, clouds and aerosol-cloud interactions. Bremen, 16-19 December 2013 Satellite analysis of aerosol indirect effect on stratocumulus clouds over South-East Atlantic
More informationModelling of atmospheric deposition and global mapping
Modelling of atmospheric deposition and global mapping Frank Dentener, EC, Joint Research Centre. Silvina Carou, WMO. Global Atmosphere Watch Workshop on Measurement-Model Fusion for Global Total Atmospheric
More informationAerosol Effects on Water and Ice Clouds
Aerosol Effects on Water and Ice Clouds Ulrike Lohmann Department of Physics and Atmospheric Science, Dalhousie University, Halifax, N. S., Canada Contributions from Johann Feichter, Johannes Hendricks,
More informationPhysio-chemical and Optical Characterization of Anthropogenic and Natural Aerosol: Implications for Assessing Global Effects
Physio-chemical and Optical Characterization of Anthropogenic and Natural Aerosol: Implications for Assessing Global Effects GLOBE Pollution Southern Japan TRACE-P, 2001 Dust Antony Clarke, University
More informationDirect radiative forcing due to aerosols in Asia during March 2002
Direct radiative forcing due to aerosols in Asia during March 2002 Soon-Ung Park, Jae-In Jeong* Center for Atmospheric and Environmental Modeling *School of Earth and Environmental Sciences, Seoul National
More informationAerosol Basics: Definitions, size distributions, structure
Aerosol Basics: Definitions, size distributions, structure Antti Lauri NetFAM Summer School Zelenogorsk, 9 July 2008 Department of Physics, Division of Atmospheric Sciences and Geophysics, University of
More informationATOC 3500/CHEM 3152 Week 9, March 8, 2016
ATOC 3500/CHEM 3152 Week 9, March 8, 2016 Hand back Midterm Exams (average = 84) Interaction of atmospheric constituents with light Haze and Visibility Aerosol formation processes (more detail) Haze and
More informationWMO SDS-WAS. Observational needs. Enric Terradellas, AEMET, Barcelona chair of the WMO SDS-WAS Steering Committtee
WMO SDS-WAS Observational needs Enric Terradellas, AEMET, Barcelona eterradellasj@aemet.es chair of the WMO SDS-WAS Steering Committtee GAW Symposium, Geneva, Switzerland, 10-13 April 2017 WMO SDS-WAS
More informationA Global Assessment of Precipitation Chemistry and Deposition
A Global Assessment of Precipitation Chemistry and Deposition A project of the World Meteorological Organization s Global Atmosphere Watch Scientific Advisory Group for Precipitation Chemistry Robert Vet
More informationImplications of Sulfate Aerosols on Clouds, Precipitation and Hydrological Cycle
Implications of Sulfate Aerosols on Clouds, Precipitation and Hydrological Cycle Source: Sulfate aerosols are produced by chemical reactions in the atmosphere from gaseous precursors (with the exception
More informationAtmospheric New Particle Formation and Climate Sensitivity: the CLOUD experiment.
Atmospheric New Particle Formation and Climate Sensitivity: the CLOUD experiment 4th April 2017 Molteni Ugo ugo.molteni@psi.ch About me Master degree in Applied and Environmental Chemistry at the University
More informationInsights Into Atmospheric Organic Aerosols Using An Aerosol Mass Spectrometer
Insights Into Atmospheric Organic Aerosols Using An Aerosol Mass Spectrometer A thesis submitted to the University of Manchester Institute of Science and Technology for the degree of Doctor of Philosophy
More informationInfluence of Organic-Containing Aerosols on Marine Boundary Layer Processes
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Influence of Organic-Containing Aerosols on Marine Boundary Layer Processes John H. Seinfeld California Institute of Technology,
More informationUKCA_RADAER Aerosol-radiation interactions
UKCA_RADAER Aerosol-radiation interactions Nicolas Bellouin UKCA Training Workshop, Cambridge, 8 January 2015 University of Reading 2014 n.bellouin@reading.ac.uk Lecture summary Why care about aerosol-radiation
More informationOutline. December 14, Applications Scattering. Chemical components. Forward model Radiometry Data retrieval. Applications in remote sensing
in in December 4, 27 Outline in 2 : RTE Consider plane parallel Propagation of a signal with intensity (radiance) I ν from the top of the to a receiver on Earth Take a layer of thickness dz Layer will
More informationSlides partly by Antti Lauri and Hannele Korhonen. Liquid or solid particles suspended in a carrier gas Described by their
Atmospheric Aerosols Slides partly by Antti Lauri and Hannele Korhonen Aerosol particles Liquid or solid particles suspended in a carrier gas Described by their Size Concentration - Number - Surface -
More informationM. Campanelli 1, V. Estellés 2, H. Diemoz 3, N. Kouremeti 4, S. Kazadzis 4, R. Becker 5, S. Vergari 6, S. Dietrich 1. 1.
The SKYNET radiometer Network: Aerosol Optical Depth retrieval performance at the FRC IV campaign and long term comparison against GAW PFR and AERONET standard instruments M. Campanelli 1, V. Estellés
More informationLidar, sonde and aircraft observations of volcanic ash in Switzerland
In-situ, Lidar, sonde and aircraft observations of volcanic ash in Switzerland Dominik Brunner, Empa with contributions from Stephan Henne, Christoph Hüglin, Andrea Ulrich, Brigitte Buchmann Urs Baltensperger,,
More informationEffect of aging on cloud nucleating properties of atmospheric aerosols
Effect of aging on cloud nucleating properties of atmospheric aerosols Yan Ma Nanjing University of Information Science & Technology The 1st Regional GEOS-Chem Asia Meeting 2015 年 5 月 8 日 Indirect effect
More information7. Aerosols and Climate
7. Aerosols and Climate I. Scattering 1. When radiation impinges on a medium of small particles, scattering of some of the radiation occurs in all directions. The portion scattered backward is called the
More informationAerosol & Climate. Direct and Indirect Effects
Aerosol & Climate Direct and Indirect Effects Embedded cooling Observed warming during 20 th century, Tapio Schneider, J. Climate, 2001 1 Many Sources / Lifetimes 2 Aerosols are liquid or solid particles
More informationSatellite-based estimate of global aerosol-cloud radiative forcing by marine warm clouds
SUPPLEMENTARY INFORMATION DOI: 10.1038/NGEO2214 Satellite-based estimate of global aerosol-cloud radiative forcing by marine warm clouds Y.-C. Chen, M. W. Christensen, G. L. Stephens, and J. H. Seinfeld
More informationIndices of Refraction of Absorptive Aerosol Their Importance and Complexity
Indices of Refraction of Absorptive Aerosol Their Importance and Complexity Steven T Massie NCAR Earth System Laboratory HITRAN Cambridge, Massachusetts June 16-18, 2010 NCAR is sponsored by the National
More informationParameterization of the nitric acid effect on CCN activation
Atmos. Chem. Phys., 5, 879 885, 25 SRef-ID: 168-7324/acp/25-5-879 European Geosciences Union Atmospheric Chemistry and Physics Parameterization of the nitric acid effect on CCN activation S. Romakkaniemi,
More informationSystematic coordinated Saharan dust profiling over Europe in the frame of the EARLINET project ( )
10 th Anniversary Systematic coordinated Saharan dust profiling over Europe in the frame of the EARLINET project (2000-2010) 2010) Alex PAPAYANNIS (Coordinator) and the EARLINET Team Outline Role of aerosols
More informationEffective radiative forcing in the aerosol climate model CAM5.3- MARC-ARG
Effective radiative forcing in the aerosol climate model CAM5.3- MARC-ARG Benjamin S. Grandey 1, Daniel Rothenberg 2, Alexander Avramov 2,3, Qinjian Jin 2, Hsiang-He Lee 1, Xiaohong Liu 4, Zheng Lu 4,
More informationEAS1600 Spring 2014 Lab 06 ATMOSPHERIC AEROSOLS
Objectives EAS1600 Spring 2014 Lab 06 ATMOSPHERIC AEROSOLS During the course of this lab we will investigate some basic connections between aerosols and climate. We will look at the aerosol scattering
More informationAerosol Optical Properties
ATM 507 Lecture 25 Text reading Chapter 15 Paper Due Dec. 9 Review Session Dec. 9 Final Dec. 12 (10:30 AM-12:30 PM) Today s topic Aerosol Optical Properties 1 Aerosol Optical Properties There are a number
More informationSATELLITE AEROSOL COMPOSITION RETRIEVAL
SATELLITE AEROSOL COMPOSITION RETRIEVAL USING NEURAL NETWORKS τ(λ), ω(λ), g(λ), m(λ), dv/d log(r), Gabriele Curci (1,2) Del Frate, F. (3), Di Noia, A. (4), Sist, M. (3), Tirelli, C. (1) (1) CETEMPS (2)
More informationData Assimilation of Satellite Lidar Aerosol Observations
Data Assimilation of Satellite Lidar Aerosol Observations Thomas Sekiyama Meteorological Research Institute Japan Meteorological Agency (MRI/JMA) AICS Data Assimilation Workshop, 27 February 2013, Kobe,
More informationScientific Challenges of UV-B Forecasting
Scientific Challenges of UV-B Forecasting Henning Staiger, German Meteorological Service (DWD) International activities and the UV Index UV Index definition and forecasting requirements Challenges in calculation
More informationAEROSOL-CLOUD INTERACTIONS AND PRECIPITATION IN A GLOBAL SCALE. SAHEL Conference April 2007 CILSS Ouagadougou, Burkina Faso
AEROSOL-CLOUD INTERACTIONS AND PRECIPITATION IN A GLOBAL SCALE SAHEL Conference 2007 2-6 April 2007 CILSS Ouagadougou, Burkina Faso The aerosol/precipitation connection Aerosol environment has changed
More informationTitle: The Impact of Convection on the Transport and Redistribution of Dust Aerosols
Authors: Kathryn Sauter, Tristan L'Ecuyer Title: The Impact of Convection on the Transport and Redistribution of Dust Aerosols Type of Presentation: Oral Short Abstract: The distribution of mineral dust
More informationModelling aerosol-cloud interations in GCMs
Modelling aerosol-cloud interations in GCMs Ulrike Lohmann ETH Zurich Institute for Atmospheric and Climate Science Reading, 13.11.2006 Acknowledgements: Sylvaine Ferrachat, Corinna Hoose, Erich Roeckner,
More informationWWRP Implementation Plan Reporting
WWRP Implementation Plan Reporting This report will form the basis of the WWRP report to the upcoming session of the WMO Commission for Atmospheric Sciences. As you respond to this request please think
More informationAn Analysis of Aerosol Optical Properties During Seasonal Monsoon Circulation
International Workshop on Land Use/Cover Changes and Air Pollution in Asia 4-7 August 2015 IPB ICC, Bogor, Indonesia An Analysis of Aerosol Optical Properties During Seasonal Monsoon Circulation Lim Hwee
More informationACTRIS aerosol vertical profiles: advanced data and their potential use in a aerosol observations/models combined approach
ACTRIS aerosol vertical profiles: advanced data and their potential use in a aerosol observations/models combined approach Lucia Mona CNR-IMAA, Potenza, Italy mona@imaa.cnr.it and EARLINET Team OUTLINE
More informationAtmospheric Aerosol in High Latitudes: Linkages to Radiative Energy Balance and Hydrological Cycle
Atmospheric Aerosol in High Latitudes: Linkages to Radiative Energy Balance and Hydrological Cycle Irina N. Sokolik School of Earth and Atmospheric Sciences Georgia Institute of Technology Atlanta, GA,
More informationAerosol Dynamics. Antti Lauri NetFAM Summer School Zelenogorsk, 9 July 2008
Aerosol Dynamics Antti Lauri NetFAM Summer School Zelenogorsk, 9 July 2008 Department of Physics, Division of Atmospheric Sciences and Geophysics, University of Helsinki Aerosol Dynamics: What? A way to
More informationGAW - WCCAP recommendation for aerosol inlets and sampling tubes
GAW - WCCAP recommendation for aerosol inlets and sampling tubes Alfred Wiedensohler, Wolfram Birmili, Leibniz Institute for Tropospheric Research, Leipzig, Germany John Ogren, NOAA ESRL GMD, Boulder,
More informationCertificate: / 29 April 2014
Test report: 936/21218896/A of 20 September 2013 Initial certification: 01 April 2014 Date of expiry: 31 March 2019 Publication: BAnz AT 01 April 2014 B12, chapter IV, No. 5.1 Approved application The
More informationDifferent Methods of Monitoring PM
Different Methods of Monitoring PM Melita Keywood Improving PM10 Monitoring in NZ 10 October 2005 CSIRO Marine and Atmospheric Research www.csiro.au Methods Integrated filter sampling Impactor or cyclone
More informationShort Course Challenges in Understanding Cloud and Precipitation Processes and Their Impact on Weather and Climate
Short Course Challenges in Understanding Cloud and Precipitation Processes and Their Impact on Weather and Climate Darrel Baumgardner PhD. Droplet Measurement Technologies February 18-22 3:30-4:30 pm break
More informationRecent anthropogenic increases in SO2 from Asia have minimal impact on stratospheric aerosol
!1 Recent anthropogenic increases in SO2 from Asia have minimal impact on stratospheric aerosol Ryan R. Neely III (NCAR/ASP), O. Brian Toon, Susan Solomon, Karen H. Rosenlof, John S Daniel, J. English,
More informationRegional Air Quality Monitoring and Forecasting using Remote Sensing Satellites, Ground-level Measurements and Numerical Modelling
Regional Air Quality Monitoring and Forecasting using Remote Sensing Satellites, Ground-level Measurements and Numerical Modelling PI: Santo V. Salinas [a] Collaborators: Ellsworth J. Welton [b], Brent
More informationCLIMATE CHANGE Albedo Forcing ALBEDO FORCING
ALBEDO FORCING Albedo forcing is the hypothesis that variations in the Earth s reflectance of solar radiation can bring about global climate change. This hypothesis is undeniable in principle; since virtually
More informationRadiation in the atmosphere
Radiation in the atmosphere Flux and intensity Blackbody radiation in a nutshell Solar constant Interaction of radiation with matter Absorption of solar radiation Scattering Radiative transfer Irradiance
More informationProf. V. Faye McNeill Department of Chemical Engineering. Columbia University Summer. Teachers August 19, 2009
Atmospheric Particles, Clouds, and Climate Prof. V. Faye McNeill vfmcneill@columbia.edu Department of Chemical Engineering Columbia University Summer Research hprogram for Science Si Teachers August 19,
More informationIAA. 1.9: Aerosol-UA - Satellite remote sensing of aerosols in the Earth atmosphere
IAA. 1.9: Aerosol-UA - Satellite remote sensing of aerosols in the Earth atmosphere Ya. Yatskiv (1), O. Degtyaryov (3), G. Milinevsky (1,2), I. Syniavskyi (1), A. Bovchaliuk (1), Yu. Ivanov (1), M. Sosonkin
More informationClass Web Site:
Modeling Earth s Climate: Water Vapor, Cloud, Lapse Rate, & Surface Albedo Feedbacks as well as Effect of Aerosols on Clouds ACC 433/633 & CHEM 433 Ross Salawitch Class Web Site: http://www.atmos.umd.edu/~rjs/class/spr2017
More informationLecture 26. Regional radiative effects due to anthropogenic aerosols. Part 2. Haze and visibility.
Lecture 26. Regional radiative effects due to anthropogenic aerosols. Part 2. Haze and visibility. Objectives: 1. Attenuation of atmospheric radiation by particulates. 2. Haze and Visibility. Readings:
More informationMon April 17 Announcements: bring calculator to class from now on (in-class activities, tests) HW#2 due Thursday
Mon April 17 Announcements: bring calculator to class from now on (in-class activities, tests) HW#2 due Thursday Today: Fundamentals of Planetary Energy Balance Incoming = Outgoing (at equilibrium) Incoming
More informationContinuous observation of aerosols in East Asia using a ground based lidar network (AD NET)
International Workshop on Air Quality in Asia, Hanoi, Vietnam. June 24th 26th, 2014 Continuous observation of aerosols in East Asia using a ground based lidar network (AD NET) Nobuo Sugimoto, Tomoaki Nishizawa,
More informationObservation of Smoke and Dust Plume Transport and Impact on the Air Quality Remote Sensing in New York City
Observation of Smoke and Dust Plume Transport and Impact on the Air Quality Remote Sensing in New York City Yonghua Wu*, Chowdhury Nazmi, Cuiya Li, Daniel Hoyos, Barry Gross, Fred Moshary NOAA-CREST and
More informationEffects of Black Carbon on Temperature Lapse Rates
Effects of Black Carbon on Temperature Lapse Rates Joyce E. Penner 1 Minghuai Wang 1, Akshay Kumar 1, Leon Rotstayn 2, Ben Santer 1 University of Michigan, 2 CSIRO, 3 LLNL Thanks to Warren Washington and
More informationAerodyne Chinese AMS/ACSM Clinic, Nanjing, April Why are we here? Data Analysis Clinics Boulder, PSI. Barcelona, Boulder
Aerodyne Chinese AMS/ACSM Clinic, Nanjing, 20-22 April 2018 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 1st/2nd AMS Users Meeting Portland / Aerodyne 3rd Aerodyne
More informationResponse to Reviewer s comments
Response to Reviewer s comments (MS Ref. No.: acp-2010-98): Long-term record of aerosol optical properties and chemical composition from a high-altitude site (Manora Peak) in Central Himalaya by K. Ram
More informationProjeto Temático FAPESP 2013/ Climate Ecosystems Atmospheric Composition
Projeto Temático FAPESP 2013/05014-0 Climate Ecosystems Atmospheric Composition GoAmazon2014/15 Experiment Manaus is a city of 2 million people surrounded by just forest in a radius of 1.500 Km. UNIQUE
More informationAerosols and Cloud Interactions. Bill Collins Berkeley Lab and UC Berkeley
Aerosols and Cloud Interactions Bill Collins Berkeley Lab and UC Berkeley Outline Aerosol / Cloud Interactions circa IPCC AR5 Implications of interaction uncertainties for climate projections Progress
More informationCharacterization of free-tropospheric aerosol layers from different source regions
Leibniz Institute for Tropospheric Research Leipzig, Germany Characterization of free-tropospheric aerosol layers from different source regions Ina Mattis, Detlef Müller, Albert Ansmann, Ulla Wandinger,
More informationFinal Exam: Monday March 17 3:00-6:00 pm (here in Center 113) Slides from Review Sessions are posted on course website:
Final Exam: Monday March 17 3:00-6:00 pm (here in Center 113) 35% of total grade Format will be all multiple choice (~70 questions) Final exam will cover entire course - material since 2 nd midterm weighted
More informationPhysical and chemical properties of freshly emitted and aged particles determined from mobile measurements in the Po Valley
Physical and chemical properties of freshly emitted and aged particles determined from mobile measurements in the Po Valley Rosaria Erika Pileci 1, Michele Bertò 1, Robin Modini 1, Stefania Gilardoni 2,
More informationArctic Chemistry And Climate
21 July 2016 Connaught Summer Institute 1 Arctic Chemistry And Climate Connaught Summer Institute 2016 William (Bill) Simpson Geophysical Institute and Department of Chemistry, University of Alaska Fairbanks
More informationCloud Condensation Nuclei Hygroscopic Parameter Kappa
Cloud Condensation Nuclei Hygroscopic Parameter Kappa Covers Reading Material in Chapter 17.5 Atmospheric Sciences 5200 Physical Meteorology III: Cloud Physics Cloud Condensation Nuclei (CCN) Form a cloud
More informationAndreas Stohl Norwegian Institute for Air Research (NILU) and
Andreas Stohl Norwegian Institute for Air Research (NILU) and E. Andrews, T. Berg, J. F. Burkhart, A. M. Fjæraa, C. Forster, A. Herber, S. Hoch, Ø. Hov, D. Kowal, C. Lunder, T. Mefford, W. W. McMillan,
More informationClimate Dynamics (PCC 587): Feedbacks & Clouds
Climate Dynamics (PCC 587): Feedbacks & Clouds DARGAN M. W. FRIERSON UNIVERSITY OF WASHINGTON, DEPARTMENT OF ATMOSPHERIC SCIENCES DAY 6: 10-14-13 Feedbacks Climate forcings change global temperatures directly
More informationSpectrum of Radiation. Importance of Radiation Transfer. Radiation Intensity and Wavelength. Lecture 3: Atmospheric Radiative Transfer and Climate
Lecture 3: Atmospheric Radiative Transfer and Climate Radiation Intensity and Wavelength frequency Planck s constant Solar and infrared radiation selective absorption and emission Selective absorption
More informationClouds, Haze, and Climate Change
Clouds, Haze, and Climate Change Jim Coakley College of Oceanic and Atmospheric Sciences Earth s Energy Budget and Global Temperature Incident Sunlight 340 Wm -2 Reflected Sunlight 100 Wm -2 Emitted Terrestrial
More informationAtmospheric composition modeling over the Arabian Peninsula for Solar Energy applications
Atmospheric composition modeling over the Arabian Peninsula for Solar Energy applications S Naseema Beegum, Imen Gherboudj, Naira Chaouch, and Hosni Ghedira Research Center for Renewable Energy Mapping
More informationSatellite remote sensing of aerosols & clouds: An introduction
Satellite remote sensing of aerosols & clouds: An introduction Jun Wang & Kelly Chance April 27, 2006 junwang@fas.harvard.edu Outline Principals in retrieval of aerosols Principals in retrieval of water
More informationThe Structure and Motion of the Atmosphere OCEA 101
The Structure and Motion of the Atmosphere OCEA 101 Why should you care? - the atmosphere is the primary driving force for the ocean circulation. - the atmosphere controls geographical variations in ocean
More informationLecture 3: Atmospheric Radiative Transfer and Climate
Lecture 3: Atmospheric Radiative Transfer and Climate Solar and infrared radiation selective absorption and emission Selective absorption and emission Cloud and radiation Radiative-convective equilibrium
More informationNew Insights into Aerosol Asymmetry Parameter
New Insights into Aerosol Asymmetry Parameter J.A. Ogren, E. Andrews, A. McComiskey, P. Sheridan, A. Jefferson, and M. Fiebig National Oceanic and Atmospheric Administration/ Earth System Research Laboratory
More informationAirborne High Spectral Resolution Lidar Aerosol Measurements and Comparisons with GEOS-5 Model
Airborne High Spectral Resolution Lidar Aerosol Measurements and Comparisons with GEOS-5 Model Richard Ferrare, Chris Hostetler, John Hair, Anthony Cook, David Harper, Mike Obland, Ray Rogers, Sharon Burton,
More informationProjects in the Remote Sensing of Aerosols with focus on Air Quality
Projects in the Remote Sensing of Aerosols with focus on Air Quality Faculty Leads Barry Gross (Satellite Remote Sensing), Fred Moshary (Lidar) Direct Supervision Post-Doc Yonghua Wu (Lidar) PhD Student
More informationBiogenic aerosols and their interactions with climate. Yuzhong Zhang
Biogenic aerosols and their interactions with climate Yuzhong Zhang 2011.4.4 Biogenic aerosols and their interactions with climate 1. OVERVIEW OF BIOGENIC AEROSOL Definition and categories Why important?
More informationWhy is it difficult to predict climate? Understanding current scientific challenges
Why is it difficult to predict climate? Understanding current scientific challenges Akua Asa-Awuku October 22, 2009 Global Climate Change (GCC) Workshop University of California - Riverside Bourns College
More informationDr. Laurent Vuilleumier, project leader Dr. Stephan Nyeki, Armand Vernez, Serge Brönnimann, Dr. Alain Heimo
Name of research institute or organization: MeteoSwiss, Payerne Title of project: Global Atmosphere Watch Radiation Measurements Project leader and team: Dr. Laurent Vuilleumier, project leader Dr. Stephan
More informationACTRIS Workshop on the Reference method for Multi-Wavelength Absorption
ACTRIS Workshop on the Reference method for Multi-Wavelength Absorption During the reporting period a laboratory study for testing a reference system for determining the absorption coefficient at a single
More informationSatellite remote sensing of NO 2
Satellite remote sensing of NO 2 views from outside Steffen Beirle Satellite Group MPI Mainz UV-vis satellite instruments Current nadir UV/vis satellite instruments: GOME 1/2, SCIAMACHY, OMI Nadir: probing
More informationOptical properties of atmospheric constituents
Optical properties of atmospheric constituents Direct effects of aerosols optical properties on climate Scattering Aerosols Absorbing Aerosols heat heat heat heat heat Cooling Clouds evaporation Graphics:
More informationReport to the CAS/WWRP/SSC7 on the activities of the SDS-WAS for the period July 2013 October 2014; presented by Slobodan Nickovic
Report to the CAS/WWRP/SSC7 on the activities of the SDS-WAS for the period July 2013 October 2014; presented by Slobodan Nickovic General The objective of the Sand and Dust Storm Warning Advisory and
More informationClimate Modeling Issues at GFDL on the Eve of AR5
Climate Modeling Issues at GFDL on the Eve of AR5 Leo Donner, Chris Golaz, Yi Ming, Andrew Wittenberg, Bill Stern, Ming Zhao, Paul Ginoux, Jeff Ploshay, S.J. Lin, Charles Seman CPPA PI Meeting, 29 September
More informationAerosol Optical Depth Variation over European Region during the Last Fourteen Years
Aerosol Optical Depth Variation over European Region during the Last Fourteen Years Shefali Singh M.Tech. Student in Computer Science and Engineering at Meerut Institute of Engineering and Technology,
More informationSurface-based Observations in GAW or GAW station matters
Surface-based Observations in GAW or GAW station matters Oksana Tarasova World Meteorological Organization Research Department OTarasova@wmo.int Current situation Surface-based in situ and remote sensing
More informationAREP GAW. Overview of GURME. (The WMO GAW Urban Research Meteorology and Environment project) WMO Secretariat
Overview of GURME (The WMO Urban Research Meteorology and Environment project) Liisa Jalkanen Liisa Jalkanen WMO Secretariat World Meteorological Organization Independent technical UN agency 187 Members
More information