Acoustic roundtrip travel time, hydrostatic pressure, and ocean velocity recorded by Current- and Pressure-recording Inverted Echo Sounder (CPIES) instruments at five mooring locations in the Indian Ocean as part of the Agulhas System Climate Array (ASCA) project. Data are in NetCDF.

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This dataset contains daily measurements of bottom pressure and round-trip acoustic travel time from three pressure-equipped inverted echo sounder (PIES) moorings deployed in the southwest South Atlantic Ocean from 2016-10-24 to 2019-06-26 as part of the Southwest Atlantic Meridional Overturning Circulation (SAM) Project. The SAM Project is funded by the NOAA Ocean Observing and Monitoring Division and by the NOAA Atlantic Oceanographic and Meteorological Laboratory. Both the processed daily records and the raw hourly measurements are included. The three PIES in this dataset were deployed at the following nominal locations - Site A: 51deg 30min W, 34deg 30min S Site C: 47deg 30min W, 34deg 30min S Site D: 44deg 30min W, 34deg 30min S The PIES mooring at Site D was recovered in 2018; the PIES moorings at Sites A and C were recovered in 2019. The metadata on the nominal locations and other details of the observing array are the same as for accession 0125596. Data from previous deployments are contained in accessions 0125596 and 0175745. Data are in ASCII format.

Acoustic roundtrip travel time, pressure, ocean velocity, and temperature recorded by Current- and Pressure-recording Inverted Echo Sounders (CPIES) instruments at five mooring locations as part of the Agulhas Current Time-series experiment (ACT).

This dataset contains round trip acoustic travel time and ambient bottom pressure from bottom-mounted instruments spaced zonally along 34.5S in the SW Atlantic east of Uruguay, July 2011 to October 2016. The data were collected for the Southwest Atlantic meridional overturning circulation ("SAM") project by the NOAA-Atlantic Oceanographic and Meteorological Laboratory. Both the processed/quality-controlled and the raw data files are available. Format is text.

This data set contains vertical acoustic travel time, bottom pressure and temperature, as well as near-bottom current and temperature taken by four current and pressure recording inverted echo sounders (CPIES) near the Cascadia subduction zone offshore of Oregon from 2017-04-27 to 2017-11-11. Travel time and pressure measurements from two additional PIES (lacking the integrated current meter) are included. Near-bottom velocities were also measured by a current meter on a separate mooring between August and November 2017. The CPIES data are the highest quality versions with the least amount of processing. The collection and processing of the data are described in the report provided. Data are in NetCDF.

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Observations were conducted from June 1999 to July 2001 to study the shallow and deep current variability in the southwest Japan/East Sea. Data were collected during the field experiment with a two-dimensional array of pressure-gauge equipped inverted echo sounders (PIES) and deep recording current meters (RCM). Hourly measurements of vertical acoustic travel time, pressure, temperature and horizontal currents are provided. Additional processing has been done to provide data sets which can easily be used together as a coherent array. The travel time records have been projected on to a common depth level, low-pass filtered, and subsampled to twice daily. The low-pass filtered, subsampled pressures have been adjusted to a common, deep geopotential surface. Small gaps in the current measurements have been replaced by fitted-spline interpolated values.

This data set contains vertical acoustic travel time, bottom pressure and temperature, as well as near-bottom current and temperature taken by four current and pressure recording inverted echo sounders, CPIES, near Hydrostation S in the north Atlantic southeast of Bermuda from 2016-06-13 to 2017-06-29. The hourly time series are the highest quality versions of the data after the least amount of processing. The collection and processing of the data are described in the report provided. Data are in NetCDF.

This data set contains measurements collected in Drake Passage between November 2007 and December 2011 as part of the cDrake progam funded by the National Science Foundation. The quantities measured by the current-and-pressure-recording inverted echo sounders (CPIES) include bottom pressure, vertical acoustic travel time, near-bottom temperature and near-bottom currents. Three short current meter moorings, deployed on the continental margins from November 2007 to November 2009, provide measurements of currents and temperature. A fourth intercomparison mooring was deployed for one year in the middle of the passage in 2009. This mooring was instrumented with seven models of current meters closely-spaced to assess their performance. Hourly measurements of vertical acoustic travel time, bottom pressure, near-bottom temperature and horizontal near-bottom currents are provided. These are the highest quality versions of the data after the least amount of processing.