A holistic microclimate model

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filereference:output:atmosphere [2017/11/13 14:48]
enviadmin
filereference:output:atmosphere [2019/08/29 10:55] (current)
enviadmin
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 ====== Output Files: Atmosphere data (_AT_) ====== ====== Output Files: Atmosphere data (_AT_) ======
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 ^ Dimension ^ Nr Variables ^ Format ^ ^ Dimension ^ Nr Variables ^ Format ^
-| 3D | 36 | Binary (EDX/EDT) |+| 3D | 43 (with Spray) ​| Binary (EDX/EDT) |
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 ==== Variable list ==== ==== Variable list ====
  
-<fs x-small>​This list represents the variable structure ​used from Preview III onIn earlier versions, ​the same information is stored, but the names might differ and the order of the variables is different.</​fs>​+<fs x-small>​This list represents the general ​variable structure. ​The actual sequence of the variables might differ but the same information is stored ​in total.</​fs>​
  
-^Nr ^ Variable ​^Unit ^Description ​+|  |**Variable** |**Unit** |**Description** | 
- + |Objects| -| Single object IDs to visualize the model domain. Meaning of the different IDs is stored in LEONARDO Special Layer Definition Files | 
-|Objects| -| Single object IDs to visualize the model domain. Meaning of the different IDs is stored in LEONARDO Special Layer Definition Files | +| |Flow u | m/s | Wind speed. Vector component along the West-East axis (+: East, -: West) | 
-|Flow u | m/s | Wind speed. Vector component along the West-East axis (+: East, -: West) | + |Flow v | m/s  | Wind speed. Vector component along the North-South axis (+: South, -: North) | 
-|Flow v | m/s  | Wind speed. Vector component along the North-South axis (+: South, -: North) | + |Flow w | m/s  | Wind speed. Vector component along the vertical axis (+: up, -: down) |  
-|Flow w | m/s  | Wind speed. Vector component along the vertical axis (+: up, -: down) |  + |Wind Speed | m/s  | Wind speed. Vector sum over all 3 axis | 
-|Wind Speed | m/s  | Wind speed. Vector sum over all 3 axis | + |Wind Speed Change | % | Wind speed change in percent referring to the undisturbed inflow profile at the same height level.|  
-|Wind Speed Change | % | Wind speed change in percent referring to the undisturbed inflow profile at the same height level.|  + |Wind Direction | deg | Wind direction of horizontal component in geographic reference (0: N..90:​E..180:​S etc)  | 
-|Wind Direction | deg | Wind direction of horizontal component in geographic reference (0: N..90:​E..180:​S etc)  | + |Pressure Perturbation | Pa | Dynamic pressure as a result of the wind field calculation. Pressure values will add up over time, use spatial difference values only if required|  
-|Pressure Perturbation | Pa | Dynamic pressure as a result of the wind field calculation. Pressure values will add up over time, use spatial difference values only if required|  + | Air Temperature | °C | Potential air temperature at reference (and model default) pressure. For the 3D model, it can be treated like the absolute air temperature|  
-| Air Temperature | °C | Potential air temperature at reference (and model default) pressure. For the 3D model, it can be treated like the absolute air temperature|  +| | Air Temperature difference to Inflow | K| Difference between the local air temperature and the reference air temperature at inflow at the same height level |  
-10| Air Temperature difference to Inflow | K| Difference between the local air temperature and the reference air temperature at inflow at the same height level |  +| | Air Temperature Change | K/h | Changes of air temperature compared to the last _AT_ output file |  
-11| Air Temperature Change | K/h | Changes of air temperature compared to the last _AT_ output file |  +| | Specific Humidity | g/kg | Specific air humidity |  
-12| Specific Humidity | g/kg | Specific air humidity |  +| | Relative Humidity | % | Relative air humidity (Caution: Depends both on Specific air humidity and air temperature)|  
-13| Relative Humidity | % | Relative air humidity (Caution: Depends both on Specific air humidity and air temperature)|  +| | TKE | m²/m³ | Local Turbulent Kinetic Energy |  
-14| TKE | m²/m³ | Local Turbulent Kinetic Energy |  +| | TKE Dissipation | m³/m³ | Local dissipation rate of Turbulent Kinetic Energy|  
-15| TKE Dissipation | m³/m³ | Local dissipation rate of Turbulent Kinetic Energy|  +| | Mean Radiant Temperature | °C | The composed radiative fluxes and air temperature for a standing person|  
-16| Mean Radiant Temperature | °C | The composed radiative fluxes and air temperature for a standing person|  + | Vertical Exchange Coefficient Impulse | m²/s | Calculated vertical exchange coefficient for impulse| 
-17 | CO2 Concentration | mg/m3 | CO2 concentration in the model domain (weight units) | +| | Horizontal Exchange Coefficient Impulse | m²/s | Calculated horizontal exchange coefficient for impulse (At the moment for microscale assumed to be equal to the vertical exchange coefficient) |  
-| 18 | CO2 Concentration | ppm | CO2 concentration in the model domain (parts units) |  +| | Direct Shortwave Radiation | W/m²| Available direct solar radiation referring to a reference surface perpendicular to the incoming sun rays (maximum value before applying Lamberts'​ law) |  
-| 19 | Vertical Exchange Coefficient Impulse | m²/s | Calculated vertical exchange coefficient for impulse| +| | Diffuse Shortwave Radiation | W/m² | Available diffuse solar radiation referring to a horizontal reference surface |  
-20| Horizontal Exchange Coefficient Impulse | m²/s | Calculated horizontal exchange coefficient for impulse (At the moment for microscale assumed to be equal to the vertical exchange coefficient) |  +| | Reflected Shortwave Radiation | W/m² | Availablereflected solar radiation from the environment referring to a horizontal reference surface | 
-21| Direct Shortwave Radiation | W/m²| Available direct solar radiation referring to a reference surface perpendicular to the incoming sun rays (maximum value before applying Lamberts'​ law) |  + | Air Temperature Change through LW Cooling | K/h | Effect of longwave radiation divergence on air temperature per time | 
-22| Diffuse Shortwave Radiation | W/m² | Available diffuse solar radiation referring to a horizontal reference surface |  +
-23| Reflected Shortwave Radiation | W/m² | Availablereflected solar radiation from the environment referring to a horizontal reference surface | +
-24 | Air Temperature Change through LW Cooling | K/h | Effect of longwave radiation divergence on air temperature per time | +
  
 === Vegetation Data === === Vegetation Data ===
  
-25| Vegetation LAD | m²/m³ | One-sided Leaf Area Density (Surface of leaf area per m³ air) |  +| | Vegetation LAD | m²/m³ | One-sided Leaf Area Density (Surface of leaf area per m³ air) |  
-26| Leaf Temperature | °C | Temperature of the leaf |  +| | Leaf Temperature | °C | Temperature of the leaf |  
-27| Temperature Flux at Leaf | K*m/s | Temperature Flux in K from leaf to atmosphere |  +| | Temperature Flux at Leaf | K*m/s | Temperature Flux in K from leaf to atmosphere |  
-28 | Stomata Resistance | s/m | Actual resistance of stomata to vapour transfer| + | Stomata Resistance | s/m | Actual resistance of stomata to vapour transfer| 
-29| Vapour Flux at Leaf | g/kg*m/s | |  +| | Vapour Flux at Leaf | g/kg*m/s | Evaportation and transpiration flux on leaf per leaf area unit|  
-30| Water on Leaf | g/ m² | | +| | Water on Leaf | g/ m² | Liquid water on leaf per leaf area| 
-31 | CO2 Flux at Leaf | mg/kg*m/s | | +  
 + 
 +=== CO2 === 
 +| CO2  |mg/m³ | Atmospheric CO2 |  
 +| | CO2 | ppm | Atmospheric CO2|  
 +|  ​| CO2 Flux at Leaf | mg/kg*m/s | CO2 Flux at leaf per leaf area unit| 
 + 
 + 
 +=== Water Spray (only if active) ​ === 
 +| | Spray source ​ |g/s | Actual emission rate of water spray at source |  
 +| | Spray concentration | g/m³ | Mass of water spray in the air |  
 +| | Spray evaporation ​ | g/(m³s) | Local evaporation rate of water spray| 
 +| | Spray Cooling ​ | K/s | Local cooling rate of air due to water spray evaporation|
  
 ===  Other Data === ===  Other Data ===
  
-32| Local Mixing Length | m | |  +| | Local Mixing Length | m | Local mixing length calculated from TKE model|  
-33| TKE normalised with 1D model | - | |  +| | TKE normalised with 1D model | - | Local TKE normlized to 1 with 1D reference model |  
-34 | Dissipation normalised with 1D model | - | + | Dissipation normalised with 1D model | - | Local TKE dissiplation normlized to 1 with 1D reference model 
-35 | Km normalised with 1D model | - |  + | Km normalised with 1D model | - | Local Km normlized to 1 with 1D reference model 
-36 | TKE Mechanical Turbulence Production | ( ) | + | TKE Mechanical Turbulence Production | ( ) | Local TKE mechnical production normlized to 1 with 1D reference model |  
 +|  | Div Rlw Temp change ​ | K/h | Radiative cooling/​heating rate of air due to longwave radiation divergence | 
 +|  | Building Number ​ | - | Internal Building Number | 
  
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