Synoptic Performance Characteristics of the Two-Level Atmospheric Model

This analysis of the two-level atmospheric model compares daily changes during January from three experiments and five years of observed data for surface air temperatures at Columbia, Mo., and five basic characteristics in the vicinity of the Icelandic and Aleutian Lows. Strong diurnal changes were...

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Bibliographic Details
Main Author: Schutz, C
Other Authors: RAND CORP SANTA MONICA CA
Format: Text
Language:English
Published: 1975
Subjects:
Meteorology
*ATMOSPHERE MODELS
*ATMOSPHERIC MOTION
*ATMOSPHERIC TEMPERATURE
*BAROMETRIC PRESSURE
*DIURNAL VARIATIONS
ALEUTIAN ISLANDS
FRONTS(METEOROLOGY)
ICELAND
MISSOURI
NORTH ATLANTIC OCEAN
NORTH PACIFIC OCEAN
Columbia(Missouri)
Pacific
aleutian low
Iceland
North Atlantic
Aleutian Islands
Online Access:http://www.dtic.mil/docs/citations/ADA015375
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA015375
Description
Summary:This analysis of the two-level atmospheric model compares daily changes during January from three experiments and five years of observed data for surface air temperatures at Columbia, Mo., and five basic characteristics in the vicinity of the Icelandic and Aleutian Lows. Strong diurnal changes were found in all simulated temperatures, but low and high diurnal ranges that would accompany specific synoptic events in nature are not well portrayed. The positions of the lows tested based on the lowest daily pressures were clumped, and in the North Atlantic were located southwest of the climatological center. Mean January pressures from these centers showed that the simulated Icelandic Low is 4.3 mb less intense, while the Aleutian Low is 1.9 mb more intense than observed. When all analyzed low pressure centers were combined, simulated speeds were slower and durations longer than observed. Finally, the simulated tracks were shown to be farther north.

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