VERTICAL MOTION AT 100 MB. IN THE TROPICS

M. A. LATEEF National Hurricane Research Laboratory, ESSA, Miami, Fla.

Search for other papers by M. A. LATEEF in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

Vertical motion at 100 mb. has been computed by the adiabatic method at each of 88 locations on a grid covering the Caribbean and adjoining areas and for each twice-daily map time during the periods, Jan. 3 to 5 and Aug. 3 to 5, 1963. The order of magnitude of vertical velocities in both winter and summer was the same, average values being about 4 mm./sec. in winter and 2 mm./sec. in summer. Local temperature change and temperature advection averaged about 2°C./day and 3°C./day respectively in winter, and both were about 1°C./day in summer. The correlation of vertical motion and temperature advection was high, about −0.86. These and other results are illustrated by maps showing the wind-isotherm patterns and the distribution of vertical motion at 100 mb. for six selected map times.

At present on World Meteorological Organization assignment at the Caribbean Meteorological Institute, Barbados, West Indies.

Abstract

Vertical motion at 100 mb. has been computed by the adiabatic method at each of 88 locations on a grid covering the Caribbean and adjoining areas and for each twice-daily map time during the periods, Jan. 3 to 5 and Aug. 3 to 5, 1963. The order of magnitude of vertical velocities in both winter and summer was the same, average values being about 4 mm./sec. in winter and 2 mm./sec. in summer. Local temperature change and temperature advection averaged about 2°C./day and 3°C./day respectively in winter, and both were about 1°C./day in summer. The correlation of vertical motion and temperature advection was high, about −0.86. These and other results are illustrated by maps showing the wind-isotherm patterns and the distribution of vertical motion at 100 mb. for six selected map times.

At present on World Meteorological Organization assignment at the Caribbean Meteorological Institute, Barbados, West Indies.

Save