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.
←- please scale window for correct formatting ! –>
| FIELD | UNIT | MEANING |
|---|---|---|
| z | m | Model Height of data (Cartesian coo.) |
| Classed LAD | - | Classified LAD and ID for buildings (see Remark 1 - ClassLAD) |
| 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 - Change of Air Temperature) |
| 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 - Direct Shortwave Radiation) |
| Diffuse SW Radiation | W/m² | Shortwave Diffuse Radiation (see Remark 3 - Direct Shortwave Radiation) |
| Reflected SW Radiation | W/m² | Shortwave Direct Radiation (see Remark 3 - Direct Shortwave Radiation) |
| 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 - Flux per Unit Leaf Area) |
| Vapour Flux | g/kg*m/s | Vapour Flux from Vegetation per Unit Leaf Area (see Remark 4 - Flux per Unit Leaf Area) |
| 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) |
| Deposed Mass Time Averaged | µg/(m²s) | Average Amount of Mass deposed per hour (see Remark 5 - Deposed Mass) |
| 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) | |