Accession Number:

AD0706035

Title:

STUDIES IN CLIMATE DYNAMICS FOR ENVIRONMENTAL SECURITY: NUMERICAL STUDIES OF TRANSIENT PLANETARY CIRCULATIONS IN A WIND-DRIVEN OCEAN ON THE SPHERE

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CA

Personal Author(s):

Report Date:

1970-04-01

Pagination or Media Count:

62.0

Abstract:

The paper presents a numerical investigation of a bounded ocean basin on the spherical earth, with particular attention directed to the role of planetary circulations. The time-dependent primitive equations are solved for a shallow, wind-driven, homogeneous ocean in a basin of uniform depth on the sphere. In a series of comparative numerical solutions, it is shown that at least a 2-degree resolution is needed to resolve the western boundary currents adequately and to avoid undue distortion of the transient Rossby waves. Although the transient Rossby waves systematically produce a momentum flux convergence at the latitude of the maximum eastward current, this is only a relatively small contribution to the zonal oceanic momentum balance the bulk of the mean zonal stress is balanced by a nearly stationary net pressure torque exerted against the meridional boundaries by the wind-raised water.

Subject Categories:

  • Meteorology
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE