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Each Output variable record corresponds to a physical parameter specification.
Link to CMIP7-AFT Data Request - Variable Changes
| Attribute | Value |
|---|---|
| branded_variable_name | sfpm25_tavg-h2m-hxy-u |
| cell_measures | area: areacella |
| cell_methods | amn-twm (Area and Time Mean) |
| cmip6_compound_name | AERhr.sfpm25 |
| cmip6_frequency | 1hr |
| cmip6_tables_identifier | AERhr (Hourly atmospheric chemistry and aerosol data) |
| cmip7_compound_name | aerosol.sfpm25.tavg-h2m-hxy-u.1hr.glb |
| cmip7_frequency | 1hr |
| coordinates | height2m |
| description | Mass fraction of atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. To specify the relative humidity and temperature at which the particle size applies, provide scalar coordinate variables with the standard names of "relative\_humidity" and "air\_temperature". |
| dimensions | longitude, latitude, time, height2m |
| flag_-_variable_change_since_cmip6 | True |
| modelling_realm | Aerosol, Atmospheric Chemistry |
| name | aerosol.sfpm25.tavg-h2m-hxy-u.1hr.glb |
| physical_parameter | sfpm25 (PM2.5 Mass Mixing Ratio in Lowest Model Layer) |
| primary_modelling_realm | Aerosol |
| processing_note | Given the large differences in aerosol, boundary layer and vertical coordinate schemes across the models AerChemMIP do not want to be prescriptive and am happy to accept modelling centre's 'best estimate' rather than requiring interpolation to 2m exactly. CHANGE SINCE CMIP6 in Dimensions - CMIP6:longitude latitude time CMIP7:longitude latitude time height2m, |
| provenance | AERhr ((isd.003)) |
| region | glb |
| spatial_shape | XY-na (Global field (single level)) |
| temporal_shape | time-intv (Temporal Interval) |
| title | Near-surface PM2.5 Mixing Ratio |
| type | real |
| uid | 19c074b4-81b1-11e6-92de-ac72891c3257 |