This page is continually being updated as we learn more about our vehicle! :)

• Science Onboard

• Data

• Sealog

• SuBastian

• The Childlike Empress

Dive Folders

Data from each dive is stored within a dedicated dive folder containing all data collected by the AUV during that dive. AUV dive folders follow the same naming convention as ROV dive folders: <cruiseID>_<diveID>. For example, FKt260517_E0015.

Within each dive folder, the data is organized into a series of subfolders that contain outputs from different vehicle processors and subsystems. Because the storage locations for specific data products may not be immediately obvious, the following sections provide an overview of the dive folder structure and describe where commonly used data can be found.

PP

“PP” stands for “payload processor” and holds all the data from the payloads on the vehicle. This will be the primary folder for data of interest from each mission. Within the pp folder, data is organized into subfolders corresponding to the individual payloads managed by the Payload Processor.

AADIO2

• Aanderraa O2 Sensor
  • The Aanderaa 4831F DW Oxygen Optode is an optical dissolved oxygen sensor integrated into the AUV environmental sensors to measure dissolved oxygen concentration and oxygen saturation throughout the water column. Using luminescence quenching technology, the sensor provides stable, low-drift measurements without consuming oxygen, making it well suited for autonomous surveys where flow conditions and deployment duration may vary. The sensor is used to characterize water mass properties, biological activity, and oceanographic processes along the vehicle's survey track.
• Data Locations:
  • There are two ways Oxygen files are outputted: cropped per mission line or a file with the entire dive data.
  • Data Per Mission Line: /CruseData/<cruiseID>/Vehicles/Empress/<diveID>/pp/AADIO2/
  • Data Per Dive: /CruseData/<cruiseID>/Vehicles/Empress/<diveID>/pp/Data/
• File Naming Convention:
  • Data Per Mission Line: <AADIO2>-<missionline>-<missionlinedescription>-<UTC date (YYYYMMDD)>-<UTC Time (HHMMSS)>.txt
  • Data Per Dive: AADIO2.txt
• Files:
  • .log : contains a copy of the sensor output, including metadata and headers during the mission line duration.
  • .txt : contains the parsed sensor output, which excludes headers and metadata from the sensor during the mission line duration, but has timestamp appended
• Headers: TBD
• Products:
  • /enc/O2ConcentrationAA.tif - shows a mosaic of the Oxygen data collected on the dive

CathxC

• CathX Tracker Camera
  • The Cathx Tracker is a high-resolution optical imaging system integrated into the AUV payload suite to collect georeferenced seafloor imagery along the vehicle's survey track. The system combines a digital still camera and a synchronized strobe light to acquire sharp, motion-blur-free imagery during surveys. These data support seafloor characterization, habitat mapping, target detection, and visual validation of acoustic survey products.
• Data Locations:
  • Raw files: /CruseData/<cruiseID>/Vehicles/Empress/<diveID>/pp/CathxC/ .jpg

Config

• Contains all the configuration information for each payload sensor. This includes calibration coefficients when applicable.
• Each sensor has its own <Sensor>.INI file that sets certain configurations within the payload processor and within the sensor itself.
  • In addition, there are additional .INI files for certain payloads, which give additional configuration information- like the Calib-pp.ini, which notes EM offsets or the EMconfig.ini file which denotes the default multibeam settings.