sea_floor_horizontal_stress_due_to_model_sea_water_velocity

accepted

Created: 21 Mar 2025

Proposer: Lucy Bricheno

Proposed Date: 2024-12-16

add to cfeditor

proposal to add three new concepts related to seabed stress (version 2)

Change Date: 21 Mar 2025, 3:08 p.m.

Change Date: 21 Mar 2025, 3:11 p.m.

sea_floor_horizontal_stress_due_to_model_sea_water_velocity N m-2 [UNSM]
Ocean processes such as waves and currents can generate forces (or stress) on the sea floor. The surface called "sea floor" means the lower boundary of the ocean. "Stress" means the shear stress (force per unit area) exerted at the sea floor. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "model_sea_water_velocity" means the stress associated with ocean current dissipation processes through bottom friction. This standard name is intended for the output of models in which sea surface waves are not included in the velocity field. Hence the sea floor stress due to bottom friction excludes any contribution from the dissipation of sea surface waves. If that contribution to the sea floor stress is separately modelled, it can be given the standard name of sea_floor_horizontal_stress_due_to_sea_surface_waves.

Change Date: 8 Apr 2025, 1:56 p.m.

sea_floor_horizontal_stress_due_to_model_sea_water_velocity N m-2 [UNSM]
Ocean processes such as waves and currents can generate forces (or stress) on the sea floor. The surface called "sea floor" means the lower boundary of the ocean. "Horizontal" refers to the local horizontal, i.e. perpendicular to the local gravity vector at the location in which the quantity is calculated. "Stress" means the shear stress (force per unit area) exerted at the sea floor. Horizontal stress refers to the stress in the horizontal plane. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "model_sea_water_velocity" means the stress associated with ocean current dissipation processes through bottom friction. This standard name is intended for the output of models in which sea surface waves are not included in the velocity field. Hence the sea floor stress due to bottom friction excludes any contribution from the dissipation of sea surface waves. If that contribution to the sea floor stress is separately modelled, it can be given the standard name of sea_floor_horizontal_stress_due_to_sea_surface_waves.