Time Series Analysis of Low Level Wind Profiles.
ARMY MISSILE COMMAND REDSTONE ARSENAL ALA PHYSICAL SCIENCES DIRECTORATE
Pagination or Media Count:
Records of a special set of rawinsonde balloon observations at Bedford, Massachusetts, have been analyzed to an altitude of 10 km above the surface. Correlations of the wind profiles at the surface and the 1- and 2-km levels have been computed for this special set of hourly wind measurements. An analysis on the magnitude of the horizontal wind vector changes to 10 km was also performed. The results indicate persistence for the wind speed profile up to 24 hours with an exponential decrease although after eight hours the correlation can be considered as marginal. The correlation of the wind direction profile decreases more rapidly with increasing lag time. Beyond the 14-hour period, the data apparently follow the variation of the large scale perturbations. Modified author abstract