Composition and Transport in the Tropical Troposphere
and Lower Stratosphere Meeting

view of NOAA Boulder

view of the David Skaggs Research Center (DSRC), home of NOAA in Boulder, Colorado

20 - 23 July 2015
Boulder, Colorado, USA

We are pleased to invite you to attend the Composition and Transport in the Tropical Troposphere and Lower Stratosphere (CT3LS) open meeting in Boulder, Colorado from 20-23 July 2015. The CT3LS meeting is held under the auspices of SPARC and IGAC, hosted by NOAA ESRL CSD, and will cover the science topics outlined below. Observational and modeling studies are encouraged. Analyses that combine ground-based, airborne, and satellite measurements, as well as the use of these observations for evaluation of large-scale models, are particularly welcome. We hope to have presentations and discussions of the role of the tropical tropopause layer (TTL) in the climate system and the response of the TTL to future climate change. It would also be helpful if speakers identify open science questions and the future measurement strategies needed to address them.

Science Topics

  1. Chemistry and transport processes controlling tropical tropospheric and stratospheric composition
    • Chemical and dynamical processes controlling ozone concentrations from the surface to the stratosphere
    • Impact of deep convection on tropical tropospheric and stratospheric composition
    • Halogen budgets/partitioning/sources/transport/etc.
  2. Clouds and water vapor
    • Tropical wave interactions
    • Processes controlling variability in stratospheric humidity
    • TTL cirrus formation processes
    • Radiative, dynamical, and chemical impacts of TTL cirrus
  3. Measurement and model comparisons
    • Use of ground-based and airborne measurements for evaluation of satellite retrievals
    • Use of ground-based, airborne, and satellite measurements for evaluation of global models
    • Evaluation of convective parameterizations using composition measurements

    Limited travel support will be available for international participants early career researchers and for students. The application deadline is 15 May 2015.