Precision Sound Velocity Profiles in the Ocean - Volume 5: Sound speed and temperature of Bermuda Waters in Autumn and Winter from October 1964 to March 1966 (NCEI Accession 7000472)

A collection of high-resolution, precision simultaneous sound speed and temperature profiles to 2200 m depth, and their envelopes for each station is presented for 25 stations in Bermudian waters and in the month of October, December, and March. The period October to March covers the full range of large seasonal changes in the near-surface waters from summer to winter; while the deep waters remain relatively stable and do not show any definite seasonal changes. For two long constant depth stations, in and below the main thermocline, time series and their power density spectra are shown for sound speeds and temperatures. A table of sound channel parameters at all stations concludes the report. The report emphasizes the variability and short- lived phenomena in oceanic waters around Bermuda.

本数据集涵盖百慕大海域25个观测站在10月、12月及3月获取的、可延伸至2200米深度的高分辨率高精度同步声速与温度廓线，以及各观测站对应的包络数据。10月至次年3月的观测时段覆盖了近表层海水从夏季到冬季的全部显著季节变化区间；而深层海水则相对稳定，未表现出明确的季节变化特征。针对两个位于主温跃层内及其下方的固定深度长期观测站，本数据集同步提供了声速与温度的时间序列及其功率密度谱。文末附有所有观测站的声道参数表。本数据集着重展现了百慕大周边海域的水文变化与短期瞬态现象。