Skip all navigation and jump to content Jump to site navigation
NASA Logo - Goddard Space Flight Center

+ NASA Homepage

    
Goddard Space Flight Center
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

Luo, ZZ, Liu, GY, Stephens, GL, Johnson, RH (2009). Terminal versus transient cumulus congestus: A CloudSat perspective. GEOPHYSICAL RESEARCH LETTERS, 36, L05808.

Abstract
While cumulus congestus as an important mode of tropical convection has been established, many of the previous studies that rely on radar observations usually capture them as snapshots. A logical question to consider is: are the statistics gathered from snapshot observations of cumulus congestus really reflective of this mode of convection that ceases its growth at these intermediate levels (terminal cumulus congestus), or will the convection being observed continue to ascend to greater altitudes to become deep convection at a later time (transient cumulus congestus)? This short article strives to answer this question by analyzing simultaneous, independent measurements of CTH and CTT from CloudSat and MODIS, together with CloudSat radar profile and collocated ECMWF analysis. It is found, based on analysis of one year of data, that a significant fraction (similar to 30-40%) of the tropical cumulus congestus observed by the snapshot views are in transient mode that will ascend to greater altitude at a later time. The analysis concept used in this study, which gives static'' snapshot observations some dynamic'' context, can be applied to analyze convection of all types. Citation: Luo, Z., G. Y. Liu, G. L. Stephens, and R. H. Johnson (2009), Terminal versus transient cumulus congestus: A CloudSat perspective, Geophys. Res. Lett., 36, L05808, doi: 10.1029/2008GL036927.

DOI:
10.1029/2008GL036927

ISSN:
0094-8276

FirstGov logo Privacy Policy and Important Notices NASA logo

Curator: Brandon Maccherone
NASA Official: Shannell Frazier

NASA Home Page Goddard Space Flight Center Home Page