Výsledky vyhledávání - "Victor L. Dvortsov"

Response of the stratospheric temperatures and ozone to past and future increases in stratospheric humidity

Autor: Victor L. Dvortsov, Susan Solomon

Publikováno v: Journal of Geophysical Research: Atmospheres. 106:7505-7514

Balloonsonde and aircraft in situ and remote sensing measurements in the Northern Hemisphere midlatitudes show that stratospheric humidity has been increasing since 1954. Satellite data, albeit only available over a much shorter period (1992 through

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d4196f9d41a04b5e7cfbe4ec210847bf
https://doi.org/10.1029/2000jd900637

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Transport Diagnostics of GCMs and Implications for 2D Chemistry-Transport Model of Troposphere and Stratosphere

Autor: Victor L. Dvortsov, V. A. Yudin, Sergey P. Smyshlyaev, Marvin A. Geller

Publikováno v: Journal of the Atmospheric Sciences. 57:673-699

The middle atmosphere version of NCAR Community Climate Model (MACCM2) and the GEOS-STRATAN data assimilation system (DAS) of NASA/GSFC have been used to generate a zonally averaged set of transport parameters (meridional circulation and resolved edd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9bb6c55813dba444d0108abc53234017
https://doi.org/10.1175/1520-0469(2000)057<0673:tdogai>2.0.co

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Assimilation of photochemically active species and a case analysis of UARS data

Autor: Boris Khattatov, Aidan E. Roche, Guy Brasseur, Lawrence V. Lyjak, Joe W. Waters, Victor L. Dvortsov, John C. Gille

Publikováno v: Journal of Geophysical Research: Atmospheres. 104:18715-18737

We present a short overview of applications of estimation theory in atmospheric chemistry and discuss some common methods of gridding and mapping of irregular satellite observations of chemical constituents. It is shown that these methods are unable

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d501f4dab6b0e087e88065ad0ef34ccb
https://doi.org/10.1029/1999jd900225

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Rethinking reactive halogen budgets in the midlatitude lower stratosphere

Autor: Elliot Atlas, Victor L. Dvortsov, Susan Solomon, Donald R. Blake, Marvin A. Geller, Sue M. Schauffler

Publikováno v: Geophysical Research Letters. 26:1699-1702

Current stratospheric models have difficulties in fully explaining the observed midlatitude ozone depletion in the lowermost stratosphere, particularly near the tropopause. Such models assume that only long-lived source gases provide significant cont

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0aae67c0de25878804213326f6f3f3cf
https://doi.org/10.1029/1999gl900309

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A two-dimensional model with input parameters from a general circulation model: Ozone sensitivity to different formulations for the longitudinal temperature variation

Autor: Sergei P. Smyshlyaev, V. A. Yudin, Victor L. Dvortsov, Marvin A. Geller

Publikováno v: Journal of Geophysical Research: Atmospheres. 103:28373-28387

Net heating and temperature derived from the middle atmospheric version of the National Center for Atmospheric Research's Community Climate Model (MA CCM2) history tapes are used to evaluate three different approaches to account for zonal temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49c088c0e2d827dcedf0611ce4b00f17
https://doi.org/10.1029/98jd02354

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Parameterization of the convective transport in a two-dimensional chemistry-transport model and its validation with radon 222 and other tracer simulations

Autor: Marvin A. Geller, V. A. Yudin, Victor L. Dvortsov, Sergei P. Smyshlyaev

Publikováno v: Journal of Geophysical Research: Atmospheres. 103:22047-22062

Deep cumulus convection is essential for understanding and modeling of the atmospheric composition, providing a mechanism by which short-lived species can be quickly transported from the planetary boundary layer to the upper troposphere. Because it i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87f7557c45a4973ed966f2af884525d3
https://doi.org/10.1029/98jd02084

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On the use of Isaksen-Luther method of computing photodissociation rates in photochemical models

Autor: Victor L. Dvortsov, S. P. Smyslaev, S. G. Zvenigorodsky

Publikováno v: Journal of Geophysical Research. 97:7593

Isaksen's algorithm of the photolysis rate calculation in Luther's modification (I-L method) is analyzed. The interpretations suggested by Thompson [1984] and Madronich [1982] are also considered. The accuracy of the I-L method is tested by (1) evalu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aeb3c946d24745c1a674a6d6b74d8109
https://doi.org/10.1029/91jd02861

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Akademický článek

Response of the stratospheric temperatures and ozone to past and future increases in stratospheric humidity.

Autor: Dvortsov, Victor L., Solomon, Susan

Publikováno v: Journal of Geophysical Research. Atmospheres; 2001, Vol. 106 Issue D7, p7505-7514, 10p

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