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Vocabulary

Climate and Forecast Vertical Co-ordinate Coverages

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URI http://vocab.nerc.ac.uk/collection/P38/current/
DescriptionTerms used by the CF community to describe the data coverage over the vertical (z) co-ordinate. This is used to describe the Earth Realm in the CF Standard Name semantic model.
CreatorClimate and Forecast Standard Names Committee
Modified2015-02-19
Version Info1
Identifier P38
Register Manager British Oceanographic Data Centre
Register Owner Climate and Forecast Standard Names Committee
Members
Identifier PrefLabel Definition Date
atmosphere atmosphere The vertical region between the surface of the Earth and the top of the atmosphere. 2015-02-18
atmosphere_boundary_layer atmosphere_boundary_layer The (atmosphere) planetary boundary layer. 2015-02-18
atmosphere_layer atmosphere_layer Layer means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. 2015-02-18
bedrock bedrock Bedrock is the solid Earth surface beneath land ice or ocean water. 2015-02-18
canopy canopy Canopy means the plant or vegetation canopy. 2015-02-18
cloud_base cloud_base The base of the lowest cloud. 2015-02-18
cloud_top cloud_top The top of the highest cloud. 2015-02-18
convective_cloud_base convective_cloud_base The base of the lowest convective cloud. 2015-02-18
convective_cloud_top convective_cloud_top The top of the highest convective cloud. 2015-02-18
equilibrium_line equilibrium_line The equilibrium line is the locus of points on a land ice surface at which ice accumulation balances ice ablation over the year. 2015-02-18
freezing_level freezing_level The vertical location of the zero degrees Celsius isotherm. 2015-02-18
geoid geoid The geoid is a surface of constant geopotential with which mean sea level would coincide if the ocean were at rest. 2015-02-18
ionosphere ionosphere The vertical region of the atmosphere that is ionized by solar and cosmic radiation, usually at an altitude of between 75 and 1000 km above the surface of the Earth. 2015-02-18
middle_atmosphere middle_atmosphere The vertical region comprising the troposphere and the stratosphere together. 2015-02-18
ocean ocean The vertical region between the sea surface and the sea floor. 2015-02-18
ocean_layer ocean_layer Layer"" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. 2015-02-18
ocean_mixed_layer ocean_mixed_layer The ocean mixed layer is the upper part of the ocean, regarded as being well-mixed. 2015-02-18
ocean_rigid_lid ocean_rigid_lid The upper surface of an ocean model, assuming that it is bounded above by a rigid lid. 2015-02-18
permafrost_layer permafrost_layer Permafrost is soil or rock that has remained at a temperature at or below zero degrees Celsius throughout the seasonal cycle for two or more years. 2015-02-18
reference_ellipsoid reference_ellipsoid A reference ellipsoid is a regular mathematical figure that approximates the irregular shape of the geoid. A number of reference ellipsoids are defined for use in the field of geodesy. 2015-02-18
sea_floor sea_floor The lower boundary of the ocean. 2015-02-18
sea_level sea_level sea_level means mean sea level, which is close to the geoid in sea areas. 2015-02-18
soil_layer soil_layer Layer means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Quantities defined for a soil layer must have a vertical coordinate variable with boundaries indicating the extent of the layer(s). 2015-02-18
stratosphere stratosphere The vertical region between the tropopause and the stratopause. 2015-02-18
surface surface The lower boundary of the atmosphere. 2015-02-18
toa toa Abbreviation for top of atmosphere. 2015-02-18
tropopause tropopause The upper boundary of the troposphere. 2015-02-18
troposphere troposphere The vertical region between the surface of the Earth and the tropopause. 2015-02-18