US 2026/0126537 A1Published application

Acoustic surveying using sound velocity profile cast frequency based on a local solar noon time value

AssigneeFnv IP B.V.

InventorsHelen Frances Stewart, Jenny Ruiz Tixier, Jeffrey William Croucher, Jarrot Jerome Spurlock

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Abstract

Described are systems and techniques for optimizing sound velocity profile (SVP) cast frequency for solar heating effects. Location information associated with a survey vessel or acoustic survey can be obtained and used to determine a time value of local solar noon (LSN) based on the location information. A time interval can be determined corresponding to increased water column heating from solar irradiance, the time interval based on configured offsets from the time value of LSN. A first subset of a plurality of SVP measurements can be obtained outside of the time interval and using a first sampling periodicity that is longer than a second sampling periodicity used to obtain a second subset of the plurality of SVP measurements within the time interval. Unlocking insights from Geo-Data, the present invention further relates to improvements in sustainability and environmental developments: together we create a safe and livable world.

Claims20

Dependent claims

A method comprising:

obtaining location information associated with one or more of a survey vessel or an acoustic survey associated with the survey vessel;
determining a time value of solar noon associated with the location information, wherein the time value of solar noon is determined based on the location information;
determining a time interval corresponding to increased water column heating from solar irradiance of a water column beneath the survey vessel, wherein the time interval is determined using one or more configured offsets from the time value of solar noon;
and
performing the acoustic survey to obtain a plurality of sonar measurements and a plurality of sound velocity profile measurements within the water column, wherein:
a first subset of the plurality of sound velocity profile measurements is obtained outside of the time interval and using a first sampling periodicity;
and
a second subset of the plurality of sound velocity profile measurements is obtained within the time interval and using a second sampling periodicity, wherein the second sampling periodicity is shorter than the first sampling periodicity.

5 more elements

A system comprising:

at least one processor;
and
a memory storing instructions which, when executed by the at least one processor, cause the at least one processor to:
obtain location information associated with one or more of a survey vessel or an acoustic survey associated with the survey vessel;
determine a time value of solar noon associated with the location information, wherein the time value of solar noon is determined based on the location information;
determine a time interval corresponding to increased water column heating from solar irradiance of a water column beneath the survey vessel, wherein the time interval is determined using one or more configured offsets from the time value of solar noon;
and
perform the acoustic survey to obtain a plurality of sonar measurements and a plurality of sound velocity profile measurements within the water column, wherein:
a first subset of the plurality of sound velocity profile measurements is obtained outside of the time interval and using a first sampling periodicity;
and
a second subset of the plurality of sound velocity profile measurements is obtained within the time interval and using a second sampling periodicity,
wherein the second sampling periodicity is shorter than the first sampling periodicity.

9 more elements

Dependencies are inferred from the claim text.