number_of_days_with_wind_speed_strictly_above_threshold

new

Created: 19 May 2026

Proposer: Lars Bärring

Proposed Date: 2026-04-28

308 #14,15.

Standard names: Standard names for climate indicators based on thresholds

Change Date: 19 May 2026, 11:54 p.m.

number_of_days_with_wind_speed_above_threshold 1 [UUUU] P07 id: CFV13N14
Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity. A variable whose standard name has the form number_of_days_with_X_below|above_threshold is a count of the number of days on which the condition X_below|above_threshold is satisfied. It must have a coordinate variable or scalar coordinate variable with the standard name of X to supply the threshold(s). It must have a climatological time variable, and a cell_methods entry for within days which describes the processing of quantity X before the threshold is applied. A number_of_days is an extensive quantity in time, and the cell_methods entry for over days should be "sum".

Change Date: 19 May 2026, 11:55 p.m.

number_of_days_with_wind_speed_strictly_above_threshold 1 [UUUU]
Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity. A variable whose standard name has the form number_of_days_with_X_below|above_threshold is a count of the number of days on which the condition X_below|above_threshold is satisfied. It must have a coordinate variable or scalar coordinate variable with the standard name of X to supply the threshold(s). It must have a climatological time variable, and a cell_methods entry for within days which describes the processing of quantity X before the threshold is applied. A number_of_days is an extensive quantity in time, and the cell_methods entry for over days should be "sum".

Change Date: 19 May 2026, 11:57 p.m.

number_of_days_with_wind_speed_strictly_above_threshold 1 [UUUU]
Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity. A variable whose standard name has the form number_of_days_with_X_strictly_above_threshold is a count of the number of days on which the condition X_strictly_above_threshold is satisfied, where the threshold value itself is excluded (strict inequality). It must have a coordinate variable or scalar coordinate variable with the standard name of X to supply the threshold(s). It must have a climatological time variable, and a cell_methods entry for within days which describes the processing of quantity X before the threshold is applied. A number_of_days is an extensive quantity in time, and the cell_methods entry for over days should be "sum".