Publication Abstracts

Lee et al. 2011

Lee, J., J. Worden, D. Noone, K. Bowman, A. Eldering, A. LeGrande, J.-L.F. Li, G. Schmidt, and S. Sodemann, 2011: Relating tropical ocean clouds to moist processes using water vapor isotope measurements. Atmos. Chem. Phys., 11, 741-752, doi:10.5194/acp-11-741-2011.

We examine the co-variations of tropospheric water vapor, its isotopic composition and cloud types and relate these distributions to tropospheric mixing and distillation models using satellite observations from the Aura Tropospheric Emission Spectrometer (TES) over the summertime tropical ocean. Interpretation of these process distributions must take into account the sensitivity of the TES isotope and water vapor measurements to variations in cloud, water, and temperature amount. Consequently, comparisons are made between cloud-types based on the International Satellite Cloud Climatology Project (ISSCP) classification; these are clear sky, non-precipitating (e.g., cumulus), boundary layer (e.g., stratocumulus), and precipitating clouds (e.g. regions of deep convection). In general, we find that the free tropospheric vapor over tropical oceans does not strictly follow a Rayleigh model in which air parcels become dry and isotopically depleted through condensation. Instead, mixing processes related to convection as well as subsidence, and re-evaporation of rainfall associated with organized deep convection all play significant roles in controlling the water vapor distribution. The relative role of these moisture processes are examined for different tropical oceanic regions.

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BibTeX Citation

  author={Lee, J. and Worden, J. and Noone, D. and Bowman, K. and Eldering, A. and LeGrande, A. and Li, J.-L. F. and Schmidt, G. and Sodemann, S.},
  title={Relating tropical ocean clouds to moist processes using water vapor isotope measurements},
  journal={Atmos. Chem. Phys.},

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RIS Citation

ID  - le05400j
AU  - Lee, J.
AU  - Worden, J.
AU  - Noone, D.
AU  - Bowman, K.
AU  - Eldering, A.
AU  - LeGrande, A.
AU  - Li, J.-L. F.
AU  - Schmidt, G.
AU  - Sodemann, S.
PY  - 2011
TI  - Relating tropical ocean clouds to moist processes using water vapor isotope measurements
JA  - Atmos. Chem. Phys.
VL  - 11
SP  - 741
EP  - 752
DO  - 10.5194/acp-11-741-2011
ER  -

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