Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e., “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure.

### Associated Parameters

**Seafloor Uplift and Deflation – Mean Seafloor Pressure**(BOTSFLU-MEANPRES). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is 15-second mean seafloor pressure.

*Units: psi.*

**Seafloor Uplift and Deflation – Mean Seafloor Depth**(BOTSFLU-MEANDEPTH). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is derived by conversion of the 15-second mean seafloor pressure and removal of the tidal signal predicted for the BOTPT instrument location.

*Units: meters.*

**Seafloor Uplift and Deflation – 5-min Rate of Depth Change**(BOTSFLU-5MINRATE). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is the instantaneous rate of depth change derived from the 15-sec Mean Seafloor Depth Detided using a backward-looking 5 minute reference point for the depth difference.

*Units: cm m*

^{-1}**Seafloor Uplift and Deflation – 10-min Mean Seafloor Uplift Rate**(BOTSFLU-10MINRATE). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product utilizes the 15-second Mean Seafloor Depth Detided and calculates a mean for each data point over a 10 minute backward-looking window. The rate is derived from the backward-looking depth difference between values with a 10 minute offset.

*Units: cm h*

^{-1}**Seafloor Uplift and Deflation – Daily Mean Seafloor Depth**(BOTSFLU-DAYDEPTH). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is calculated using a 24-hour window centered on 00:00 hours GMT and applied to 15-sec Mean Seafloor Depth Detided data. It is corrected for pressure sensor drift annually- or biennially- using ROV-based field measurements.

*Units: meters.*

**Seafloor Uplift and Deflation – 4-Week Mean Rate of Seafloor Uplift**(BOTSFLU-4WKRATE). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is the mean rate of seafloor depth change as calculated by 4-week backwards-looking linear regressions. Uplift is positive.

*Units: cm yr*

^{-1}.**Seafloor Uplift and Deflation – 8-Week Mean Rate of Seafloor Uplift**(BOTSFLU-8WKRATE). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is the mean rate of seafloor depth change as calculated by 8-week backwards-looking linear regressions. Uplift is positive.

*Units: cm yr*

^{-1}.**Seafloor Uplift and Deflation – Predicted Tide** (BOTSFLU-PREDTIDE). Seafloor Uplift and Deflation is a measure of the inflation and deflation (i.e.- “breathing”) of the seafloor. These data are calculated using Nano-resolution Bottom Pressure. This data product is the tide calculated at 15-second time intervals for the location of each BOTPT instrument using tide-prediction software. Units: meters.

### Instrument Classes

The following instrument classes include this data product:

- Bottom Pressure and Tilt (BOTPT)

**Typical Units**

meters

**Sampling Regime**

Seafloor/Crust