'Tropopause' presentation slideshows

604 views • 47 slides

Dynamic tropopause analysis; What is the dynamic tropopause?

Dynamic tropopause analysis; What is the dynamic tropopause?. A level (not at a constant height or pressure) at which the gradients of potential vorticity on an isentropic surface are maximized Large local changes in PV are determined by the advective wind

869 views • 47 slides

MIDDLE ATMOSPHERE RESEARCH

MIDDLE ATMOSPHERE RESEARCH. HIRDLS: The High Resolution Dynamics Limb Sounder Future potential in remote sensing for the UT/LS region. Benefit to the community UT/LS Research Initiative Building upon existing strength, anticipation of new capabilities (HIAPER)

615 views • 44 slides

STT and Tropopause Changes from Radar Windprofilers and Ozonesondes David W. Tarasick

STT and Tropopause Changes from Radar Windprofilers and Ozonesondes David W. Tarasick Air Quality Research Division, Environment Canada W.K. Hocking (UWO) T. Carey-Smith (NIWA). Walsingham.

463 views • 37 slides

Jet Stream

Jet Stream. 250 mb isotach. Main Upper Tropospheric Jets Closely Associated with the Tropopause. Tropopause. Tropospause Heights. Tropopause height changes rapidly at subtropical and polar jets Higher in ridges and lower in troughs.

338 views • 33 slides

Requirements for monitoring the global tropopause

Requirements for monitoring the global tropopause. Bill Randel Atmospheric Chemistry Division NCAR. Tropopause is most simply identified by a change in stability (lapse rate). tropical tropopause. midlatitude tropopause. Latitudinal structure of the tropopause.

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451 views • 31 slides

WP5.2: Variations in the precipitation component of the water cycle in the Mediterranean region

WP5.2: Variations in the precipitation component of the water cycle in the Mediterranean region Simon Krichak (TAU). The role of NAO. Monthly Mediterranean precipitation is affected by the main teleconnection regimes (NAO, EA/WR , ENSO, etc.) acting over Europe.

489 views • 30 slides

Observed Recent Changes in the Tropopause

Observed Recent Changes in the Tropopause. Dian Seidel NOAA Air Resources Laboratory ~ Silver Spring, Maryland USA Bill Randel NCAR Atmospheric Chemistry Division ~ Boulder, Colorado USA AGU Chapman Conference on the Role of the Stratosphere in Climate & Climate Change

350 views • 28 slides

ExUTLS dynamics and global observations Bill Randel, NCAR ACD

ExUTLS dynamics and global observations Bill Randel, NCAR ACD. ExUTLS dynamics and global observations Bill Randel, NCAR ACD. Two aspects of ExUTLS transport to explore: Transport above the subtropical jet (links with double tropopauses ) Tropopause Inversion Layer (TIL)

426 views • 25 slides

Systematic errors in medium-range forecasts of tropopause structure

Systematic errors in medium-range forecasts of tropopause structure. Suzanne Gray , Caroline Dunning, John Methven, Giacomo Masato, Jeffrey Chagnon. University of Reading. September 2013. Potential vorticity. tropopause.

393 views • 25 slides

Trimodal distribution of ozone and water vapor in the UT/LS during boreal summer

Trimodal distribution of ozone and water vapor in the UT/LS during boreal summer. WARM SEASON. Timothy J Dunkerton NorthWest Research Associates. Tropical Tropopause Layer (TTL). Contains critical questions for atmospheric chemistry and climate

353 views • 24 slides

CCMVal overview: The extra-tropical UTLS in chemistry-climate models

CCMVal overview: The extra-tropical UTLS in chemistry-climate models Michaela I. Hegglin & Andrew Gettelman Seok-Woo Son, Masatomo Fujiwara, Simone Tilmes, Laura Pan, Peter Hoor, Huikyo Lee, Gloria Manney, Thomas Birner, Gabriele Stiller, Markus Rex, Stefanie Kremser, Don Wuebbles.

348 views • 23 slides

Collaborative UT/LS Research Interests at NCAR and the Use of HIAPER

Collaborative UT/LS Research Interests at NCAR and the Use of HIAPER. ACD: L. Pan, S. Schauffler, W. Randel, B. Ridley MMM: M. Barth ( also ACD ), D. Lenschow (also ATD), A. Heymsfield ATD: J. Stith, D. Rogers, T. Campos CGD: P. Rasch. Motivations.

308 views • 20 slides

A New Tropopause Definition for Use in Chemistry-Transport Models

A New Tropopause Definition for Use in Chemistry-Transport Models. Jessica L. Neu, Michael J. Prather, Xin Zhu. Logan, 1999. Heggelin et al., 2009. Chemistry-transport models are tools that can help us understand what drives the chemical composition and variability of the UTLS.

358 views • 20 slides

Atmospheric Soundings : Radiosondes, Dropsondes and Driftsondes

Atmospheric Soundings : Radiosondes, Dropsondes and Driftsondes. Kate Young & Junhong Wang NCAR Earth Observing Laboratory. National Center for Atmospheric Research. Weather/Climate Societal Impacts Pollution/Air Chemistry Ocean/Atmosphere Space weather/Sun.

258 views • 14 slides

Science Definition Team Activities and the GTWS Draft Data Requirements

Science Definition Team Activities and the GTWS Draft Data Requirements. Jim Yoe, NOAA/NESDIS/ORA James.G.Yoe@noaa.gov Bob Atlas, NASA/GSFC/DAO Atlas@dao.gsfc.nasa.gov. Overview. The SDT and its role wrt GTWS Goals, approach, and actions for 2001 The Product: Draft Data Requirements

247 views • 11 slides

Large Scale Ozone Observations by UV-DIAL During INTEX-NA

Large Scale Ozone Observations by UV-DIAL During INTEX-NA Marta Fenn 1 , Edward Browell 2 , Carolyn Butler 1 , John Hair 2 , Susan Kooi 1 , Syed Ismail 2 , Anthony Notari 1 , Vince Brackett 1 , Melody Avery 2

87 views • 1 slides

Abstract

Peculiar behavior of tropopause observed in tropical and extra tropical latitudes with CHAMP/GPS Radio Occultation measurements M. Venkat Ratnam and T . Tsuda Research Institute for Sustainable Humanosphere(RISH),Kyoto University, Uji 611 0011, JAPAN

130 views • 1 slides

4. Calculated tropopause

How well can we determine the tropopause from coarsely resolved model data? Thomas Reichler 1 , Martin Dameris 2 , Robert Sausen 2 (1) Meteorology Department, University of Utah, Salt Lake City, UT, USA

129 views • 1 slides