A holistic microclimate model

Main File Atmosphere (_ATM_)

This section describes the different data field stored in the main file for the atmosphere (…_AT_…).

The data stored in the .EDT files are in binary format and can be extracted using LEONARDO or XTract.

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FIELD UNIT MEANING
z m Model Height of data (Cartesian coo.)
Classed LAD - Classified LAD and ID for buildings (see Remark 1)
Flow u m/s Wind Speed u-component
Flow v m/s Wind Speed v-component
Flow w m/s Wind Speed w-component
Wind Speed m/s Total Wind Speed
Wind Speed Change % Change of Wind Speed comp. to inflow
Wind Direction deg Direction of the Wind Flow relative to geographic north
Pressure Perturb Pa Relative Pressure Perturbation
Pot. Temperature K Potential Air Temperature
Pot. Temperature (Diff K) K Potential Air Temperature difference to inflow
Pot. Temperature Change K/h Change of Air Temperature with time (see Remark 2)
Spec. Humidity g/kg Specific Humidity Air
Relative Humidty % Relative Humidity of Air
TKE m²/s² Turbulent Kinetic Energy
Dissipation m³/s² Dissipation of TKE
Vertical Exchange Coef. I. m²/s Vertical Turbulent Exchange Coefficient Km
Horizontal Exchange Coef. m²/s Horizontal Turbulent Exchange Coefficient Km
Absolute LAD m²/m³ Leaf Area Density
Direct SW Radiation W/m² Shortwave Direct Radiation (see Remark 3)
Diffuse SW Radiation W/m² Shortwave Diffuse Radiation (see Remark 3)
Reflected SW Radiation W/m² Shortwave Direct Radiation (see Remark 3)
Longwave Rad. Environment W/m² Longwave Radiation received from the environment
Sky-View-Factor Buildings - Sky-View-Factor (only buildings considered)
Sky-View-Factor Buildings & Vegetation - Sky-View-Factor (buildings plus vegetation considered)
Temperature Flux K*m/s Temperature Flux from Vegetation per Unit Leaf Area (see Remark 4)
Vapour Flux g/kg*m/s Vapour Flux from Vegetation per Unit Leaf Area (see Remark 4)
Water on Leafs g/m² Amount of Liquid Water on Leafs
WallTemp Cellborder x K Wall Temperature Wall x-axis (see Knowledgebase - Wall Temperatures)
WallTemp Cellborder y K Wall Temperature Wall y-axis (see Knowledgebase - Wall Temperatures)
WallTemp Cellborder z K Wall Temperature Wall z-axis (see Knowledgebase - Wall Temperatures)
Leaf Temperature K Temperature of Leafs in Grid Box
Local Mixing Length m
PMV Value - PMV value (see [PVM]-Section)
PPD Value % Percentage People Dissatisfied (see [PVM]-Section)
Mean Radiant Temperature K Mean Radiative Temperature
Gas/Particle Concentration µg/m³ Concentration of selected Particle or Gas in microgram
Gas/Particle Source µg/s Emission Rate of Particle or Gas Source in microgram
Deposition Velocity mm/s Deposition Velocity (only at surfaces)
Total Deposed Mass µg/m² Total Amount of Mass Deposed to Ground or Leaf Surface Unit Area since Start (see Remark 5)
Deposed Mass Time Averaged µg/(m²s) Average Amount of Mass deposed per hour (see Remark 5)
TKE normalised 1D - TKE normalised with 1D Profile (E/E_1D)
Dissipation normalised 1D - Dissipation normalised with 1D Profile (Eps/eps_1d)
Km normalised 1D - Vertical Km norm. with 1D Profile (Km/Km_1D)
TKE Mechnaical Prod - Turbulence Production due to Wind Shear (Tensor Deformation)
Stomata Resistance m/s
CO2 mg/m³ CO2 Concentration (if A-gs Model used, see [PLANTMODEL]-Section)
CO2 ppm
Plant CO2 Flux mg/kg*m/s
Div Rlw Temp Change K/h
Local Mass Budget µg/(s*m³)
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