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Journal of Geophysical Research: Atmospheres (1984–2012)

Cover image for Journal of Geophysical Research: Atmospheres (1984–2012)

16 October 2011

Volume 116, Issue D19

Currently known as: Journal of Geophysical Research: Atmospheres

  1. Aerosol and Clouds

    1. Top of page
    2. Aerosol and Clouds
    3. Climate and Dynamics
    4. Composition and Chemistry
    1. You have free access to this content
      Sea-spray aerosol particles generated in the surf zone

      A. M. J. van Eijk, J. T. Kusmierczyk-Michulec, M. J. Francius, G. Tedeschi, J. Piazzola, D. L. Merritt and J. D. Fontana

      Article first published online: 15 OCT 2011 | DOI: 10.1029/2011JD015602

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      Key Points

      • The surf zone is an effective source of sea-spray aerosols
      • Production strength is governed by wave energy dissipation
      • Horizontal transport is of the order of 10s of kms
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      Improvements of top-of-atmosphere and surface irradiance computations with CALIPSO-, CloudSat-, and MODIS-derived cloud and aerosol properties

      Seiji Kato, Fred G. Rose, Sunny Sun-Mack, Walter F. Miller, Yan Chen, David A. Rutan, Graeme L. Stephens, Norman G. Loeb, Patrick Minnis, Bruce A. Wielicki, David M. Winker, Thomas P. Charlock, Paul W. Stackhouse Jr., Kuan-Man Xu and William D. Collins

      Article first published online: 14 OCT 2011 | DOI: 10.1029/2011JD016050

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      Key Points

      • CALIPSO CloudSat increases surface downward LW to 345Wm-2
      • Multi-layer clouds provide better agreement with CERES
      • Surface radiation and other surface flux uncertainties overlap
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      Impact of new particle formation on the concentrations of aerosols and cloud condensation nuclei around Beijing

      H. Matsui, M. Koike, Y. Kondo, N. Takegawa, A. Wiedensohler, J. D. Fast and R. A. Zaveri

      Article first published online: 13 OCT 2011 | DOI: 10.1029/2011JD016025

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      Key Points

      • NPF-explicit model reproduced the timing of formation and growth of nanoparticles
      • NPF increases (decreases) CCN concentrations at higher (lower) supersaturations
      • A reduction of primary emissions does not necessarily decrease CCN in Beijing
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      Airborne validation of cirrus cloud properties derived from CALIPSO lidar measurements: Spatial properties

      John E. Yorks, Dennis L. Hlavka, Mark A. Vaughan, Matthew J. McGill, William D. Hart, Sharon Rodier and Ralph Kuehn

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2011JD015942

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      Key Points

      • Analyze spatial properties of cirrus clouds from CALIPSO and CPL products
      • Identify differences between cirrus cloud areas retrieved by CALIPSO and CPL
      • Resolve frequency and origin of differences between CALIPSO and CPL data
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      Partitioning CloudSat ice water content for comparison with upper tropospheric ice in global atmospheric models

      Wei-Ting Chen, Christopher P. Woods, Jui-Lin F. Li, Duane E. Waliser, Jiun-Dar Chern, Wei-Kuo Tao, Jonathan H. Jiang and Adrian M. Tompkins

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2010JD015179

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      Key Points

      • A new method is developed to partition CloudSat IWC on the basis of particle size
      • Data are compared to model output, pointing to areas for model improvements
      • Data are crucial for evaluating and reducing uncertainty of climate models
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      An aerosol climatology for a rapidly growing arid region (southern Arizona): Major aerosol species and remotely sensed aerosol properties

      Armin Sorooshian, Anna Wonaschütz, Elias G. Jarjour, Bryce I. Hashimoto, Bret A. Schichtel and Eric A. Betterton

      Article first published online: 11 OCT 2011 | DOI: 10.1029/2011JD016197

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      Key Points

      • A comprehensive aerosol climatology for southern Arizona is reported
      • Dust, OC, and sulfate comprise the majority of the aerosol mass
      • Spatiotemporal gradients in composition exist; long-term trends are reported
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      Modeling the impact of aerosols on tropical overshooting thunderstorms and stratospheric water vapor

      Baojun Chen and Yan Yin

      Article first published online: 8 OCT 2011 | DOI: 10.1029/2011JD015591

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      Key Points

      • Stratospheric water vapor can be regulated by overshooting deep convection
      • Microphysics and dynamics of tropical thunderstorms differ by aerosols
      • Aerosols can influence the stratospheric water vapor content
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      The global picture of aerosol layers formation in the stratosphere and in the mesosphere under the influence of gravito-photophoretic and magneto-photophoretic forces

      A. A. Cheremisin, I. S. Shnipov, H. Horvath and H. Rohatschek

      Article first published online: 8 OCT 2011 | DOI: 10.1029/2011JD015958

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      Key Points

      • Photophoretic forces especially act on particles in the stratosphere and mesosphere
      • A temporal and spatial pattern of the photophoretic forces has been found
      • Photophoresis can explain observed stratification
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      Shortwave absorptance in a tropical cloudy atmosphere: Reconciling calculations and observations

      Kajsa Parding, Laura M. Hinkelman, Thomas P. Ackerman and Sally A. McFarlane

      Article first published online: 4 OCT 2011 | DOI: 10.1029/2011JD015639

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      Key Points

      • Sampling issues contribute to the observation-model SW absorption discrepancy
      • Averaging surface data is not always sufficient to eliminate sampling issues
      • Great care should be taken when estimating cloud SW absorption from observations
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      Multiple scattering identification in spaceborne W-band radar measurements of deep convective cores

      A. Battaglia, T. Augustynek, S. Tanelli and P. Kollias

      Article first published online: 4 OCT 2011 | DOI: 10.1029/2011JD016142

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      Key Points

      • Methodology to identify multiple scattering in convection
      • Application of the methodology to CloudSat observations
      • Identification of convective areas with Doppler potential
  2. Climate and Dynamics

    1. Top of page
    2. Aerosol and Clouds
    3. Climate and Dynamics
    4. Composition and Chemistry
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      An overview of the Global Historical Climatology Network monthly mean temperature data set, version 3

      Jay H. Lawrimore, Matthew J. Menne, Byron E. Gleason, Claude N. Williams, David B. Wuertz, Russell S. Vose and Jared Rennie

      Article first published online: 15 OCT 2011 | DOI: 10.1029/2011JD016187

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      Key Points

      • GHCN-M is an internationally recognized source of data for the study of climate
      • Release of ver3 first update in 10 years addresses concerns associated with ver2
      • Confirms conclusions regarding decadal and 100+ yr trends in global sfc temp
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      Bifurcations leading to summer Arctic sea ice loss

      Dorian S. Abbot, Mary Silber and Raymond T. Pierrehumbert

      Article first published online: 15 OCT 2011 | DOI: 10.1029/2011JD015653

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      Key Points

      • Bifurcations can occur as Arctic summer sea ice is lost in a low-order model
      • Whether bifurcations occur is strongly dependent on cloud behavior
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      The connection between the Atlantic Multidecadal Oscillation and the Indian Summer Monsoon in Bergen Climate Model Version 2.0

      Feifei Luo, Shuanglin Li and Tore Furevik

      Article first published online: 14 OCT 2011 | DOI: 10.1029/2011JD015848

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      Key Points

      • BCM well captures the essential features of the observed AMO and ISM
      • AMO enhances the ISM and delays the withdrawal of ISM with one month in BCM
      • The impact are primarily achieved through an atmospheric teleconnection pattern
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      Comparison of an isotopic atmospheric general circulation model with new quasi-global satellite measurements of water vapor isotopologues

      Kei Yoshimura, Christian Frankenberg, Jeonghoon Lee, Masao Kanamitsu, John Worden and Thomas Röckmann

      Article first published online: 14 OCT 2011 | DOI: 10.1029/2011JD016035

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      Key Points

      • First intensive comparison between isoAGCM and satellites
      • Show potential of vapor isotope assimilation
      • Over tropical deserts model and NIR sensor shows best match
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      On the effective aerodynamic and scalar roughness length of Weddell Sea ice

      Alexandra I. Weiss, John King, Tom Lachlan-Cope and Russ Ladkin

      Article first published online: 14 OCT 2011 | DOI: 10.1029/2011JD015949

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      Key Points

      • We determined the effective roughness lengths for Antarctic sea ice
      • The ratio between the two roughness lengths changes with sea ice type
      • By using this roughness length, the model accuracy can be improved
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      The impact of gravity wave drag on mesospheric analyses of the 2006 stratospheric major warming

      Shuzhan Ren, Saroja Polavarapu, Stephen R. Beagley, Yulia Nezlin and Yves J. Rochon

      Article first published online: 14 OCT 2011 | DOI: 10.1029/2011JD015943

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      Key Points

      • Mesospheric analyses can be reliable even without mesospheric data due to GWD
      • Assimilating mesospheric temperatures reduces sensitivity to GWD
      • Accurate mesospheric constituent simulation still requires GWD schemes
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      Decadal variability in the Southern Hemisphere

      Xiaojun Yuan and Emmi Yonekura

      Article first published online: 13 OCT 2011 | DOI: 10.1029/2011JD015673

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      Key Points

      • SAM indices exhibit a significant decadal variability
      • The decadal variability exists in both observations and climate models
      • SAM indices and SST in midlatitudes covary at this decadal frequency band
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      Correlation of surface sensible heat flux in the arid region of northwestern China with the northern boundary of the East Asian summer monsoon and Chinese summer precipitation

      Hui Wang and Dongliang Li

      Article first published online: 13 OCT 2011 | DOI: 10.1029/2011JD015696

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      Key Points

      • Negative correlation between SSH of NW China and northern boundary of EA monsoon
      • There is interplay between SSH of NW China and EA summer monsoon precipitation
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      Short-period gravity waves and ripples in the South Pole mesosphere

      S. Suzuki, M. Tsutsumi, S. E. Palo, Y. Ebihara, M. Taguchi and M. Ejiri

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2011JD015882

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      Key Points

      • This study shows the first investigation of mesospheric waves at the South Pole
      • The observed waves showed clear preferential propagation directions
      • Characteristics of atmospheric instabilities were inferred from the waves
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      Association of double tropopause events with baroclinic waves

      J. M. Castanheira and L. Gimeno

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2011JD016163

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      Key Points

      • Method for identifying breaks in the subtropical tropopause for reanalysis data
      • Double tropopauses as an overlapping of tropical and extratropical tropopauses
      • Double tropopauses are associated with baroclinic Rossby waves
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      Decadal climate prediction with the European Centre for Medium-Range Weather Forecasts coupled forecast system: Impact of ocean observations

      F. J. Doblas-Reyes, M. A. Balmaseda, A. Weisheimer and T. N. Palmer

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2010JD015394

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      Key Points

      • Ocean initialization is relevant for tropical forecasts
      • Coupled model drift limits the impact of initialization
      • There is significantly positive decadal forecast skill
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      Temporal evolution of nightglow emission responses to SSW events observed by TIMED/SABER

      Hong Gao, Jiyao Xu, William Ward and Anne K. Smith

      Article first published online: 12 OCT 2011 | DOI: 10.1029/2011JD015936

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      Key Points

      • Temporal evolution of nightglow during sudden stratospheric warmings
      • The airglow variations are consistent with expected vertical transport effects
      • Stratospheric warming effects penetrate into the thermosphere
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      The remote effect of the Tibetan Plateau on downstream flow in early summer

      Yafei Wang, Xiangde Xu, Anthony R. Lupo, Pingyun Li and Zhicong Yin

      Article first published online: 11 OCT 2011 | DOI: 10.1029/2011JD015979

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      Key Points

      • TP heating excites a wave train downstream
      • The wave train is associated with global warming
      • The wave train did not follow the waveguide theory
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      Implications for atmospheric dynamics derived from global observations of gravity wave momentum flux in stratosphere and mesosphere

      M. Ern, P. Preusse, J. C. Gille, C. L. Hepplewhite, M. G. Mlynczak, J. M. Russell III and M. Riese

      Article first published online: 8 OCT 2011 | DOI: 10.1029/2011JD015821

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      Key Points

      • Gravity wave momentum flux global distributions in both strato- and mesosphere
      • Interaction of gravity waves with zonal wind jets studied
      • Discussion of variations on different timescales: seasonal, QBO, solar cycle
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      Changes of climate extremes in a typical arid zone: Observations and multimodel ensemble projections

      Tao Yang, Xiaoyan Wang, Chenyi Zhao, Xi Chen, Zhongbo Yu, Quanxi Shao, Chong-Yu Xu, Jun Xia and Weiguang Wang

      Article first published online: 7 OCT 2011 | DOI: 10.1029/2010JD015192

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      Key Points

      • Identify spatial and interannual changes in temperature and precipitation extremes
      • Construct scenarios of climate extremes using multimodel ensemble projections
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      A comparison of Amazon rainfall characteristics derived from TRMM, CMORPH and the Brazilian national rain gauge network

      Diogo Costa Buarque, Rodrigo Cauduro Dias de Paiva, Robin T. Clarke and Carlos André Bulhões Mendes

      Article first published online: 5 OCT 2011 | DOI: 10.1029/2011JD016060

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      Key Points

      • CMORPH shows larger mean annual rainfall and numbers of wet days than rain gauges
      • CMORPH and TRMM show considerably more wet days than the rain gauges
      • Spatial correlation of rainfall errors must be allowed for
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      Gigantic jets produced by an isolated tropical thunderstorm near Réunion Island

      Serge Soula, Oscar van der Velde, Joan Montanya, Patrice Huet, Christelle Barthe and József Bór

      Article first published online: 4 OCT 2011 | DOI: 10.1029/2010JD015581

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      Key Points

      • Analysis of gigantic jet observed at unprecedented close distance
      • Analysis of the first colour photographs of gigantic jets
      • Detailed description of the transition region of the gigantic jets
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      The evolution of a breaking mesospheric bore wave packet

      R. G. Stockwell, M. J. Taylor, K. Nielsen and M. J. Jarvis

      Article first published online: 4 OCT 2011 | DOI: 10.1029/2010JD015321

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      Key Points

      • Observations of the dynamic evolution of a mesopheric bore
      • Comparison and validation of bore theory equations
      • Introduction of advanced numerical analysis techniques
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      Daily covariations in near-surface relative humidity and temperature over the ocean

      S. Pfahl and N. Niedermann

      Article first published online: 4 OCT 2011 | DOI: 10.1029/2011JD015792

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      Key Points

      • Anticorrelation of daily temperature and relative humidity in tropics
      • Correlation of daily temperature and relative humidity in midlatitudes
      • Identification of main atmospheric processes leading to these correlations
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      An evaluation and improvement of microphysical parameterization from a two-moment cloud microphysics scheme and the Southwest Monsoon Experiment (SoWMEX)/Terrain-influenced Monsoon Rainfall Experiment (TiMREX) observations

      Wenhua Gao, Chung-Hsiung Sui, Tai-Chi Chen Wang and Wei-Yu Chang

      Article first published online: 1 OCT 2011 | DOI: 10.1029/2011JD015718

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      Key Points

      • Improvement of the raindrop size distribution in two-moment microphysics
      • The simulated ZDR below the freezing level are closer to the radar observations
      • The simulated surface precipitation rates are significantly improved
  3. Composition and Chemistry

    1. Top of page
    2. Aerosol and Clouds
    3. Climate and Dynamics
    4. Composition and Chemistry
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      Automatic calibration of an ensemble for uncertainty estimation and probabilistic forecast: Application to air quality

      D. Garaud and V. Mallet

      Article first published online: 13 OCT 2011 | DOI: 10.1029/2011JD015780

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      Key Points

      • Almost perfect ensemble scores (e.g. rank histogram) can result from calibration
      • Observation errors have a slight impact on calibration
      • The method is robust enough to be applied in uncertainty forecasting
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      Exploiting the power law distribution properties of satellite fire radiative power retrievals: A method to estimate fire radiative energy and biomass burned from sparse satellite observations

      S. S. Kumar, D. P. Roy, L. Boschetti and R. Kremens

      Article first published online: 7 OCT 2011 | DOI: 10.1029/2011JD015676

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      Key Points

      • Biomass burned retrieved conventionally from FRP significantly sensitive to sampling
      • New method based on observed FRP power law properties solves this sensitivity
      • New method demonstrated with ground and satellite fire observations
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      Influences of the springtime northern Indian biomass burning over the central Himalayas

      Rajesh Kumar, Manish Naja, S. K. Satheesh, N. Ojha, H. Joshi, T. Sarangi, P. Pant, U. C. Dumka, P. Hegde and S. Venkataramani

      Article first published online: 6 OCT 2011 | DOI: 10.1029/2010JD015509

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      Key Points

      • Impact of northern Indian biomass burning over the cleaner Central Himalayas
      • Additional radiative warming at the higher altitude region and near cloud top
      • Important data for modelers and policy makers that is not considered until now
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      Within-canopy sesquiterpene ozonolysis in Amazonia

      K. Jardine, A. Yañez Serrano, A. Arneth, L. Abrell, A. Jardine, J. van Haren, P. Artaxo, L. V. Rizzo, F. Y. Ishida, T. Karl, J. Kesselmeier, S. Saleska and T. Huxman

      Article first published online: 1 OCT 2011 | DOI: 10.1029/2011JD016243

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      Key Points

      • First real-time sesquiterpene concentration measurments in a forest canopy
      • Within-canopy sesquiterpene ozonolysis is a large fraction of net emissions
      • Within-canopy sesquiterpene ozonolysis is an effective sink for ozone

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