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Record Details

Record 56 of 8834
Dynamics and energetics of the South Pacific Convergence Zone during FGGE SOP-1
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Author and Affiliation:
Vincent, D. G.(Purdue Univ., West Lafayette, IN, United States)
Abstract: The major research objectives are to diagnose the physical processes responsible for the maintenance of the South Pacific Convergence Zone (SPCZ) and to examine the role of the SPCZ in the large-scale circulation patterns of the Southern Hemisphere. To accomplish these objectives researchers used several data sources which include: a modified set of Level III-b upper air analyses, originally produced by ECMWF (Vincent, 1982); subjectively analyzed surface analyses for the South Pacific based on island station reports (Vincent, 1985); outgoing longwave radiation values supplied to us by NOAA/NESDIS; and equivalent black body temperatures and precipitation rates derived by Robertson. In the past year researchers found that wave number four plays an inportant role in the Southern Hemisphere tropics during the 15-day period when the sPCZ was a dominant feature, particularly with regard to the baroclinic conversion of potential to kinetic energy (Huang and Vincent, 1985). The convectively-active SPCZ area was found to make a significant contribution to this conversion process; thus, it appears that baroclinic effects and latent heating are important in maintaining the SPCZ. Recently efforts concentrated on two research tasks, an examination of cyclone activity within the SPCZ (Kann, 1985; Vincent, 1985; Vincent and Kann, 1985) and a study of the heat and moisture budgets in the South Pacific (Miller, et al., 1985). It was found that cyclonic disturbances occurred with regularity in the Zone from 10 to 17 January.
Publication Date: Oct 01, 1985
Document ID:
19870003619
(Acquired Nov 04, 1995)
Accession Number: 87N13052
Subject Category: METEOROLOGY AND CLIMATOLOGY
Document Type: Conference Paper
Publication Information: NASA. Marshall Space Flight Center NASA(MSFC FY-85 Atmospheric Processes Research Review; 3 p
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Purdue Univ.; Dept. of Geosciences.; West Lafayette, IN, United States
Description: 3p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: ATMOSPHERIC CIRCULATION; BAROCLINIC WAVES; HURRICANES; PACIFIC OCEAN; SATELLITE IMAGERY; TROPICAL METEOROLOGY; HEATING; KINETIC ENERGY; RAIN; RATES (PER TIME)
Imprint And Other Notes: In NASA. Marshall Space Flight Center NASA/MSFC FY-85 Atmospheric Processes Research Review 3 p (SEE N87-13043 04-47)
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