Hemispheric solution of the Omega equation including terrain and surface frictional effects

A quasi-geostrophic omega equation for large-scale vertical velocities in the atmosphere is solved at the earth's surface, 850 mb, 700 mb, 500 mb, and 300 mb for a grid of 1977 points per level covering the major portion of the Northern Hemisphere. The effects of terrain and surface frictional stress on the vertical velocity at the lower boundary are investigated in some detail and applied at the earth's surface. The three-dimensional integration of the resulting equations excludes areas "inside" the terrain. The mathematical model is programmed for the Control Data Corporation 1604 digital computer to utilize the operational output of machine processed data and analyses produced by the Fleet Numerical Weather Facility (FNWF), Monterey, California. the program allows a wide variety of modes of operation and yields a solution for w in five minutes. An unusual weather situation in January, 1962 is investigated and the results, although tentative, show that the correlation between computer vertical velocities and the observed weather is excellent.

Department dc:contributor.department

Meteorology and Oceanography

Grantor dc:publisher

Monterey, California. Naval Postgraduate School

Year dc:date.issued

1962

Authors dc:creator

• Clarke, Leo C.
• Lawniczak, George E., Jr.

Advisor dc:contributor.advisor

• Haltiner, George J.

Statement dc:rights

• This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.

Language dc:language.iso

en_US

Handle dc:identifier.uri

https://hdl.handle.net/10945/12283

OAI identifier oai:identifier

oai:calhoun.nps.edu:10945/12283