APP FY-80 Task I Report: Comparisons of Vertical Sound Speed Profiles from SIMAS and ICAPS Environmental Data Bases with High Quality Measured CTD and STD Data

摘要

The SIMAS (Sonar In-situ Mode Assessment System) and ICAPS (Integrated Command Anti-submarine warfare Prediction System) programs address different system applications but are similar in that each has been developed for use as an 'on-board' prediction system. It is known that SIMAS and ICAPS do not employ identical environmental data bases. The extent to which these data bases differ is being addressed in a separate study. The purpose of this particular study was to: (1) compare predicted SIMAS and ICAPS vertical sound speed profiles with measured in-situ CTD (Continuous-Temperature-Depth) or STD (Salinity-Temperature-Depth) data; (2) present, whenever possible, similarities or dissimilarities between the predicted SIMAS and the predicted ICAPS sound speed profiles with measured CTD and STD data; (3) discuss the implications of these similarities and dissimilarities, and (4) compare the 'goodness' of the predicted SIMAS and ICAPS to the 'Assumed Oceanography'. Since this study was of limited scope it focused entirely on vertical sound speed profile comparisons.