Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999

Details Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999 Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3103206r&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 3, CiteID L03206

Physics

5

Meteorology And Atmospheric Dynamics, Meteorology And Atmospheric Dynamics: General Circulation, Meteorology And Atmospheric Dynamics: Convective Processes

Scientific paper

METEOSAT pixel measurements reveal a striking new observation that rapid southward propagating deep clouds, on diurnal scale, are embedded in the northward migrating cloud structures from near equator upto 20N during active phases of 1999 summer monsoon. For the first time, we show that, ``while the deep convection is on'' during the active phase, an abrupt atmospheric drying occurs three days before the commencement of break in layers between 600 and 200 hPa over Continental Tropical Convergence Zone (CTCZ) with drastic reduction in Upper Tropospheric relative Humidity to ~30%. East-West circulation cells induce subsidence over CTCZ and hence upper tropospheric drying. Continued drying and simultaneous weakening of low level convergence by ~50% causes the transition to break. Subsidence associated with intense convection near foot hills of Himalayas weakens low level convergence. A rapid shift occurs in divergence field during transition with convergence replacing intense divergence at upper levels over CTCZ.

Affiliated with

Also associated with

No associations

Rating

Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Upper tropospheric drying and the ``transition to break'' in the Indian summer monsoon during 1999 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1019305