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Bottom Pressure and Tilt

Bottom Pressure and Tilt sensors are designed to measure the inflation and deflation of the seafloor using a precision pressure sensor that enables detection of the seafloor’s rise and fall (i.e., “breathing”) as magma (molten rock) moves in and out of underlying magma chambers. A very precise tilt meter (measures in micro-radians) records the “tilting” of the seafloor as it deforms in response to melt migration.

Associated Streams

  • Streamed Science HEAT Sensor Data Products (botpt_heat_sample)
  • Streamed Science IRIS Sensor Data Products (botpt_iris_sample)
  • Streamed Calibration Data (botpt_lily_leveling)
  • Streamed Science LILY Sensor Data Products (botpt_lily_sample)
  • Streamed Science NANO Sensor Data Products (botpt_nano_sample)
  • Streamed Engineering Data (botpt_status)

Data Products

This instrument measures the following data products. Select a data product's name to learn more.

The algorithm code used to generate this instrument's data products is also available in the ion-functions GitHub repository.

Instrument Models

The OOI includes the following instrument makes and models for this instrument type. Follow the links below to find out where in the OOI this instrument has been deployed. You'll also find quick links for each instrument to Data portal, where you can plot and access data.

Series Make Model
BOTPTA PMEL/Chadwick PMELcabled BPR/Tilt

Reference Information

Primary Science Discipline

Research Themes


Access Data
BOTPT on the Data Portal