Marine Geoscience Data System
TN327 Backscatter:Optical, Chemistry:Fluid:Eh, Conductivity, Magnetic:Field, Navigation, Oxygen, Pressure, Temperature, Velocity:Sound
2015 AUV Sentry vehicle-corrected navigation and raw magnetic sensor data, Axial Seamount
This data set consists of raw magnetic field measurements and vehicle-corrected navigation for autonomous underwater vehicle (AUV) Sentry dives over Axial Seamount, Juan de Fuca Ridge collected in 2015 during research cruise TN327 on R/V Thomas Thompson. AUV Sentry is operated as part of National Deep Submergence Facility (NDSF) by Woods Hole Oceanographic Institution (WHOI) and is funded by the National Science Foundation (NSF). The AUV Sentry magnetometer is an APS (Applied Physics Systems) model 1540 3-axis fluxgate sensor (https://www.appliedphysics.com/products/magnetometers/). AUV Sentry has three magnetometer sensors, two are located mid-body on the port and starboard side and one is located in the top of the vehicle. These data files contain raw magnetic field data from the 'top' sensor which is also identified as the '02' sensor. Navigation is by USBL.The data files are in ASCII format with the following columns: year, month, day, hour, min, sec, latitude (dec. degrees), longitude (dec. degrees), depth (meters), pressure (decibars), heading (degrees), altitude (meters), mag02x (nT), mag02y (nT), mag02z (nT), optical backscatter sensor OBS (volts), redox potential eh (volts), rate of change of redox potential dehdt (volts/second), oxygen O2 (micromolar), temperature (celsius), conductivity (siemens/meter), sound speed (meters/second), sound velocity profile SVP (meters/second), oxygen reduction potential (volts). The data set was collected under grant OCE13-56839 from the National Science Foundation. The AUV Sentry magnetic data were analyzed and interpreted under a Woods Hole Oceanographic Institution (WHOI) internal research grant to Maurice Tivey and with additional support for Bailey Fluegel by the WHOI Summer Student Fellow program in 2021. The data set is described in Fluegel et al., GRL, 2022.
Device Info
SoundVelocitySensor
RDI:DVL
Device Info
SoundVelocitySensor
Reson
Device Info
OpticalBackscatterSensor
Seapoint Sensors, Inc.
Device Info
PressureGauge
Paroscientific:8B7000-1
Device Info
Probe:Chemistry:eH
Device Info
Navigation
iXblue:Phins
Device Info
Navigation
Sonardyne:Ranger
Device Info
CTD
Sea-Bird:SBE-49 FastCAT
Device Info
Magnetometer
APS:1540
Device Info
Sensor:Optode:Oxygen
AADI:4330
Platform
Sentry (AUV)
WHOI:NDSF
Awards
Quality
0
Data have not been processed or modified since acquisition (e.g. Realtime navigation or sonar data, raw images etc.).

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