The detailed radiation result, including how much radiation reaches a point from every direction. Useful for in-depth comfort and façade studies.
Objects ( )
Cell-type marker (see conventions).
Direct SW Radation (W/m²)
Direct sunlight reaching the point.
Direct SW Radation horizontal (W/m²)
Direct sunlight on a horizontal surface at that point.
Direct SW Radiation relative to Max ( )
Direct sunlight as a fraction of the maximum possible (an easy 0–1 "how sunny" measure).
Diffuse SW Radiation (W/m²)
Scattered skylight reaching the point.
SW Radiation Reflected from upper Hemisphere (W/m²)
Reflected sunlight arriving from above (e.g. off building faces above you).
LW Radiation from Upper Hemisphere (W/m²)
Heat radiation from the sky and surfaces above. Low on a clear night (cold sky), high under cloud or beneath a tree canopy.
SW Radiation Reflected from lower Hemisphere (W/m²)
Reflected sunlight arriving from below (off the ground).
LW Radiation from Lower Hemisphere (W/m²)
Heat radiation from the ground and lower surfaces; high over hot paving.
ViewFactor Upward Sky / Buildings / Vegetation / Soil ( )
The share of the upward view taken up by sky, buildings, plants and ground respectively (they add up to 1). Explains where a point's radiation is coming from.
ViewFactor Downward Sky / Buildings / Vegetation / Soil ( )
The same breakdown for the downward-facing view.
Diffuse SW Radiation without secondary Source (W/m²)
Diffuse skylight, excluding light that has bounced off surroundings.
Diffuse SW Radiation secondary Source (W/m²)
The portion of diffuse light that comes from reflections off surroundings.
Sum SW Radiation (W/m²)
Total shortwave (sun) radiation at the point, all components combined.
LW Radiation Received North / East / South / West / Up / Down Facing (W/m²)
Heat radiation hitting a surface facing each direction; lets you study, e.g., how much heat a south-facing façade receives.
SW Radiation Rec. Reflected North / East / South / West / Up / Down (W/m²)
Reflected sunlight received on a surface facing each direction.
Dif SW Radiation Rec. North / East / South / West / Up / Down (W/m²)
Diffuse skylight received on a surface facing each direction.
Dir SW Radiation Rec. North / East / South / West / Up / Down (W/m²)
Direct sunlight received on a surface facing each direction.
SW Radiation Rec. North / East / South / West / Up / Down (W/m²)
Total shortwave received on a surface facing each direction (direct + diffuse + reflected).
Rec. SW Dir Solar MRT Fluxes (W/m²)
The direct-sun part of the radiation a person receives, as used in the comfort (MRT) calculation.
Rec. SW Env. MRT Fluxes (W/m²)
The diffuse + reflected sunlight part of the radiation a person receives.
Rec. LW Radiative MRT Fluxes (W/m²)
The longwave (heat) part of the radiation a person receives.
Mean Radiant Temperature (°C)
The combined radiation "felt temperature" at the point (see Key concepts).