Output Files: Receptor data

*Work in Progress…*

Dimension Nr Variables Format
1D depends 1D data for atmosphere, surface/flux, and soil data

Receptor Data

Contains the state of the receptors data in your model area, divided into atmospheric, surface/flux, and soil data.

The receptor data files are produced each receptor output interval (default: 10 min) and represent the general state of the receptor at the given model time. The atmosphere and soil data are saved as a file for each individual output that contains the information for every cell height (1DR file). Additionally, the data over the whole simulation time is saved in one file (1DT). The flux data is only saved in a 1DT file.

Variable list

This list represents the general variable structure. The actual sequence of the variables might differ but the same information is stored in total.

Atmosphere Data

Variable Unit Description
Date - Simulation date
Time - Simulation time
modtime min Minutes passed since the start of the simulation
z m Height in metres
u m/s Wind speed. Vector component along the West-East axis (+: East, -: West)
v m/s Wind speed. Vector component along the North-South axis (+: South, -: North)
w m/s Wind speed. Vector component along the vertical axis (+: up, -: down)
wSpeed m/s Wind speed. Vector sum over all 3 axis
wDir deg Wind direction of horizontal component in geographic reference (0: N..90:E..180:S etc)
T °C Potential air temperature at reference (and model default) pressure. For the 3D model, it can be treated like the absolute air temperature
dT/dt K/h Air temperature change between current and last time step
q g/kg Specific air humidity
q.rel % Relative air humidity (Caution: Depends both on Specific air humidity and air temperature)
Km.vert - Vertical exchange coefficient of the impulse
Km.vert.rel - Vertical exchange coefficient of the impulse normed with a neutral Km
Km.hor - Horizontal exchange coefficient of the impulse
E m²/m³ Local Turbulent Kinetic Energy
Eps m³/m³ Local dissipation rate of Turbulent Kinetic Energy
Tmrt °C The composed radiative fluxes and air temperature for a standing person
LAD m²/m³ One-sided Leaf Area Density (Surface of leaf area per m³ air)
Tleaf °C Leaf temperature, if no tree is in the cell, it is set to 0°C
Hleaf W/m² Sensible heat from Leaf Area Unit if a plant is present
LEleaf W/m² Latent heat from Leaf Area Unit if a plant is present
Rs s/m Stomata resistance of leaves in grid box
CO2 mg/m³ Locall CO2
CO2.flx mg/kg*s Local CO2 flux at plants
SW.dir W/m² Incoming direct shortwave radiation
SW.dif W/m² Incoming diffuse shortwave radiation
Press.p Pa Pressure Perturbation - Dynamic pressure as a result of the wind field calculation. Pressure values will add up over time, use spatial difference values only if required
Mass microgram/kg Concentration of different species in air
E.mech m²/m³ Mechanic turbulent kinetic energy if in free atmosphere
Rlw.warming K/h Temperature divergence due to longwave fluxes
SVF.bldg - Amount of only buildings that can be seen from the grid cell
SVF.bldg+veg - Amount of buildings and vegetation that can be seen from the grid cell
dT_CoolingSetpoint K Temperature difference to a cooling temperature of 26 °C
CoolingHours h Needed cooling hours to keep temperature below 26 °C
dT_HeatingSetpoint K Temperature difference to a heating temperature of 22 °C
HeatingHours h Needed heating hours to keep temperature above 22 °C

Surface/Flux Data

Variable Unit Description
Date - Simulation date
Time - Simulation time
modtime min Minutes passed since the start of the simulation
z m Height in metres
T0 °C Temperature of the surface
dT0/dt K/h Temperature change between current and last time step
q0 g/kg Humidity of surface
uv1 m/s Wind speed in the grid above surface. u and v components combined
w1 m/s Wind speed in the grid above surface. w component
T1 °C Temperature in the grid above surface
H W/m² Sensible heat flux of the surface
LE W/m² Latent heat flux of the surface
G W/m² Soil/Ground heat flux of the surface
Km0 - Vertical exchange coefficient at surface
Kh0 - Horizontal exchange coefficient at surface
Qsw.dir W/m² Shortwave direct radiation incidenting at grid surface point
Qsw.dif W/m² Shortwave direct radiation incidenting at grid surface point
Qsw.refl_in W/m² Average reflection of buildings at grid surface point
Qlw.Budg W/m² Longwave radiation budget at grid surface point
Qlw.upperHemisphere W/m² Longwave radiation coming in from the upper hemisphere

Soil Data

Variable Unit Description
Date - Simulation date
Time - Simulation time
modtime min Minutes passed since the start of the simulation
-z cm Depth in centimetres
T °C Soil temperature
Vol_WaterContent m³/m³ Volumetric water content of soil, i.e. the quantity of water contained in the natural soil
Temperature_Diffusifity *10e6 Thermal diffusity of soil
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