Remote detection of water property changes from a time series of oceanographic data

[摘要] A water mass analysis method based on a constrained minimization techniqueis developed to derive water property changes in water mass formationregions from oceanographic station data taken at significant distance fromthe formation regions. The method is tested with two synthetic data sets,designed to mirror conditions in the North Atlantic at the Bermuda BATS timeseries station.

The method requires careful definition of constraints before it producesreliable results. It is shown that an analysis of the error fields underdifferent constraint assumptions can identify which properties vary mostover the period of the observations. The method reproduces the syntheticdata sets extremely well if all properties other than those that areidentified as undergoing significant variations are held constant during theminimization.

[学科分类] 海洋学与技术