A statistical verification of a ten year series of computed surface wind conditions over the North Pacific and North Atlantic Oceans.

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Authors
Larson, Sigurd Erling
Subjects
quasi-geostrophic wind
computer model
climatology
synoptic scale
North Pacific Ocean
North Atlantic Ocean
ocean station observations
ten year trend
frequency distribution
spectra
correlation
regression
Advisors
Jung, Glenn H.
Date of Issue
1974-12
Date
December 1974
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The increasing interest in long term (inter-annual) weather changes and their relation to processes in the ocean is beginning to illuminate the need for and the lack of long term records of physically significant variables which occur over the vast oceanic regions of the northern hemisphere. An attempt is made here to evaluate the accuracy of a hind cast time series of surface wind vector components and speeds for the period of January 1960 through December 1969. The quasi-geostrophic model used to calculate these records is described as well as the twelve-hourly surface pressure data which were used as input. The central moments of the probability distributions of the computed records are compared to those of corresponding time series observed on Ocean Station Vessels. Linear correlation coefficients between observed and computed records were found to average 0.81 for the components of the wind vector and 0.65 for the wind speed. Regression relations between computed and observed records also are presented. Spectral analysis of low pass filtered records showed coherence between observed and computed records increased with decreasing frequency. The accuracy of the computed records in low latitudes also is estimated.
Type
Thesis
Description
Series/Report No
Department
Oceanography
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
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.
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