KESS Data

CPIES Data

Shown below is the KESS CPIES/PIES array superimposed on Smith and Sandwell bathymetry contoured every 1000 m. The CPIES/PIES were moored in water depths ranging from 5300 m on the western side of the array to 6300 m in the east. Data are available for 46 sites (Sites File lists nominal positions and bottom depths). Site designator is given in the upper left hand corner and IES serial number is listed under the triangles. Black is for CPIES sites, red for PIES sites, magenta specifies sites where only telemetry was taken, and yellow designates where instruments were CPIES in 2005, but PIES in 2006. The measurements were made during April 2004 to July 2006 under the sponsorship of the National Science Foundation. The measured quantities include pressure, vertical acoustic round-trip travel time, and currents. All data files in the CPIES archive are provided in ASCII format.

CONTENTS of HOURLY FILES

There are up to three files for each instrument, where XX is the site designator and YYY is the IES serial number:

prs/XX_SNYYY.dat -- pressure in decibars
tau/XX_SNYYY.dat -- vertical acoustic travel time in seconds
currents/XX_SNYYY.dat -- u,v velocities in cm/sec

These are the highest quality versions of the data after the least amount of processing. Large data spikes (outliers) and long term drifts have been removed from these records. Details of the processing are provided in the data report. Each file contains year, month, day, hour, minute, second and either pressure, travel time or currents. Missing data values are indicated by NaN.

CONTENTS of 72 HR LOWPASSED FILES

There are up to three files for each instrument, where XX is the site designator:

prs/XX.dat -- leveled, demeaned pressure in decibars
tau/XX.dat -- vertical acoustic travel time from 0 to 1400 dbar in seconds
currents/XX.dat -- u,v velocities in cm/sec

The above pressure, travel time and current records were lowpass filtered using a 4th order Butterworth filter with a 72 hr cutoff period. Further details are provided in the data report. These pressures have been leveled to a common geopotentail using mean currents. The travel times have been referenced to a common pressure level. These values are equivalent to the integral of sound speed between the surface and 1400 dbar times two (ie., round-trip). Each file contains year, month, day, hour, minute, second, and either pressure, travel time or currents.

Download CPIES Data from NOAA National Centers for Environmental Information, Accession: 73269

CTD Data

CTD data from the KESS field program are available by cruise from the Clivar & Carbon Hydrographic Data Office (CCHDO) at UCSD.

Thomas G.Thompson TN168-1 2004, Hydrographic Cruise: 325020040424
Roger Revelle ZHNG08RR 2005, Hydrographic Cruise: 33RR20050617
Mellville Magellan Leg 4, Hydrographic Cruise: 318M20060601

ADCP Data

ADCP data from the KESS field program are available by cruise from the Joint Archive for Shipboard ADCP at the University of Hawaii.

Thompson TN168-1 04/25/2004 to 05/31/2004 SAC_ID 01086
Revelle ZHNG08RR 06/17/2005 to 07/16/2005 SAC_ID 01085
Melville Magellan Leg 4 06/01/2006 to 07/05/2006 SAC_ID 01084

Bathymetry Data

Multibeam bathymetry data is available from the National Geophysical Data Center for the CPIES Deployment Cruise (36 files, 162,263 KB unconpressed). Follow the instructions below to retrieve this data.

Go to National Geophysical Data Center website (link will open in new window).
Click on the top link in the left column "ArcIMS Map Interface to Multibeam Data"
After map appears, zoom in on KESS region
Scroll down on right side and click "Make Map or Get Data"
In new window, click on "Get Data/Select Surveys"
From the Multibeam Survey List, select the CPIES Deployment Cruise:
- Survey: TN168
- Source: University of Rhode Island
- Ship: Thomas G. Thompson
- Chief Scientist: Watts and Donohue
- Dates: 2004-04-25 - 2004-05-31

For PIs

For PIs (Password required)