Microstructure, CTD and ADCP data collected from R/V ONRUST in Hudson River Estuary during 6 short cruises from 1994-05-19 to 2001-05-01 (NCEI Accession 0146260)

Observations of turbulent mixing, stratification and currents in the Hudson River Estuary made in 6 short cruises in 1994/1995 and 2001 were assembled. The lower Hudson River is a “partially mixed estuary” with large fortnightly and seasonal variations. In terms of flow dynamics, it represents a tidally forced, stratified shear flow with regions of static instability, well-mixed regions, stably stratified regions with subcriticial gradient Richardson numbers, Ri<1/4, and highly stable regions. Observations include more than 6000 microstructure/CTD profiles accompanied by velocity measurements with a ship-mounted, 600-kHz ADCP. Ancillary data and documentation are provided.