Computer Science – Sound
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3508812s&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 8, CiteID L08812
Computer Science
Sound
3
Atmospheric Processes: Tropical Meteorology, Atmospheric Processes: Convective Processes, Atmospheric Processes: Synoptic-Scale Meteorology, Atmospheric Processes: Stratosphere/Troposphere Interactions, Atmospheric Processes: Tides And Planetary Waves
Scientific paper
This study quantifies Madden-Julian Oscillation (MJO)-related hydrological variability in the upper troposphere/lower stratosphere (UT/LS) using Aura Microwave Limb Sounder (MLS) cloud ice water content (IWC) and water vapor (H2O). In a composite of six boreal-winter MJO events, the UT/LS IWC anomaly is strongly positively correlated with the convection (TRMM rainfall) anomaly. IWC anomalies range from +/-2 mg/m3 at 215 hPa to +/-0.08 mg/m3 at 100 hPa. The UT/LS H2O anomaly has an eastward-tilting structure similar to the previous-documented temperature structure, but the H2O maximum lags the temperature maximum by about a week. The H2O anomaly is positively correlated with the convection anomaly in the UT (261 hPa) and LS (68 hPa) but negatively correlated with the convection anomaly near the tropopause (100 hPa). This analysis provides a multi-parameter construct useful in validating and improving the parameterization of convection, clouds and cloud microphysics in MJO modeling.
Jiang Jonathan H.
Read William G.
Schwartz Michael J.
Tian Baijun
Waliser Duane E.
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