THE INTER-TROPICAL CONVERGENCE ZONE STUDIED WITH AN INTERACTING ATMOSPHERE AND OCEAN MODEL,

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Abstract:

A simple, two-layer numerical model of the upper tropical ocean has been added to a pre-existing primitive equation model of a zonally-symmetric tropical atmosphere in order to predict a meridional profile of sea-surface temperature and its relationship to the atmospheric intertropical convergence zone ITCZ. With an initially flat temperature profile near the equator, it is found that a cold equatorial surface progressively develops on account of upwelling and vertical mixing in the sea. A single ITCZ establishes itself at first over the equator, but then migrates poleward as the equator cools the convergence zone remains single despite the eventual double surface temperature maximum. This marked hemispheric asymmetry is in accord with satellite observations. Author

Author(s):
Pike, Arthur C.
Author Organization(s):
ROSENSTIEL SCHOOL OF MARINE AND ATMOSPHERIC SCIENCES MIAMI FLA
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
Scientific-2, AFCRL-70-0069
Contract/Grant Number(s):
F19628-68-C-0144
Task Number(s):
669802
Project Number(s):
AF-6698
Monitor Series:
70-0069
 Subject Terms
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
(*ATMOSPHERE MODELS, TROPICAL REGIONS), (*SEA WATER, SURFACE TEMPERATURE), OCEAN MODELS, MATHEMATICAL MODELS, INTERACTIONS, OCEAN CURRENTS, METEOROLOGICAL SATELLITES, WIND, MOTION
Field(s)/Group(s):
Meteorology, Physical and Dynamic Oceanography
Keyword(s):
*AIR WATER INTERACTIONS, PROFILES, TEMPERATURE, UPWELLING
Report Date:
1970 Jan 01