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 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.

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.

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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.

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 Current and Pressure recording Inverted Echo Sounder (CPIES) measurements collected during the Kuroshio Extension System Study (KESS) under the sponsorship of the National Science Foundation. The measurements were taken between April 2004 and June 2006. Data are from 46 sites. The measured quantities include bottom pressure, vertical acoustic round-trip travel time and near-bottom currents.

The goal of QUantifying Interocean fluxes in the Cape Cauldron Hotspot of Eddy kinetic energy (QUICCHE) was to observe mixing and stirring in the Cape Basin in the southeast Atlantic Ocean across time and space scales ranging from seconds to months and from centimeters to tens of kilometers using a variety of sensors and platforms. As part of QUICCHE, two inverted echo sounders equipped with bottom pressure gauges and current meters (CPIES) were deployed at sites designated CP01 and CP02 at 4676 and 4895 m depth respectively, from March 2023 to April 2024. 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.

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.