Surface albedo
We have collated some of the information on surface roughness available.Â
Please see original documents for context.Â
Cambridge Environmental Research Consultants
ADMS Roads 5.0 Urban User Guide & ADMS 6 User’s Guide
| Class Index | Short Terrain Description | Value |
|---|---|---|
|
n/a |
Model default |
0.23 |
|
Snow-covered ground |
0.6 |
|
|
Not snow-covered ground |
0.23 |
MPRM User’s Guide
| Seasonal Categories | Short Terrain Description | Value |
|---|---|---|
|
n/a |
Default |
0.25 |
MMFIF User Manual
| Seasonal Categories | Short Terrain Description | Value |
|---|---|---|
|
Summer |
Urban |
0.18 |
|
Dryland crop/pasture |
0.17 |
|
|
Irrigated crop/pasture |
0.18 |
|
|
Mixed crop/pasture |
0.18 |
|
|
Crop/grass mosaic |
0.18 |
|
|
Crop/woodland mosaic |
0.16 |
|
|
Grassland |
0.19 |
|
|
Shrubland |
0.22 |
|
|
Mix shrub/grass |
0.20 |
|
|
Savanna |
0.20 |
|
|
Deciduous broadleaf |
0.16 |
|
|
Deciduous needle |
0.14 |
|
|
Evergreen broadleaf |
0.12 |
|
|
Evergreen needle |
0.12 |
|
|
Mixed forest |
0.13 |
|
|
Water bodies |
0.08 |
|
|
Herbaceous wetland |
0.14 |
|
|
Wooden wetland |
0.14 |
|
|
Barren sparsely vegetated |
0.25 |
|
|
Herbaceous tundra |
0.15 |
|
|
Wooded tundra |
0.15 |
|
|
Mixed tundra |
0.15 |
|
|
Barren tundra |
0.25 |
|
|
Snow/ice |
0.55 |
|
|
Winter |
Urban |
0.18 |
|
Dryland crop/pasture |
0.23 |
|
|
Irrigated crop/pasture |
0.23 |
|
|
Mixed crop/pasture |
0.23 |
|
|
Crop/grass mosaic |
0.23 |
|
|
Crop/woodland mosaic |
0.20 |
|
|
Grassland |
0.23 |
|
|
Shrubland |
0.25 |
|
|
Mix shrub/grass |
0.24 |
|
|
Savanna |
0.20 |
|
|
Deciduous broadleaf |
0.17 |
|
|
Deciduous needle |
0.15 |
|
|
Evergreen broadleaf |
0.12 |
|
|
Evergreen needle |
0.12 |
|
|
Mixed forest |
0.14 |
|
|
Water bodies |
0.08 |
|
|
Herbaceous wetland |
0.14 |
|
|
Wooden wetland |
0.14 |
|
|
Barren sparsely vegetated |
0.25 |
|
|
Herbaceous tundra |
0.60 |
|
|
Wooded tundra |
0.50 |
|
|
Mixed tundra |
0.55 |
|
|
Barren tundra |
0.70 |
|
|
Snow/ice |
0.70 |
AERMET User’s Guide & PCRAMDT User’s Guide
| Seasonal Categories | Short Terrain Description | Value |
|---|---|---|
|
Spring |
Water (fresh and sea) |
0.12 |
|
Deciduous Forest |
0.12 |
|
|
Coniferous Forest |
0.12 |
|
|
Swamp |
0.12 |
|
|
Cultivated Land |
0.14 |
|
|
Grassland |
0.18 |
|
|
Urban |
0.14 |
|
|
Desert Shrubland |
0.3 |
|
|
Summer |
Water (fresh and sea) |
0.1 |
|
Deciduous Forest |
0.12 |
|
|
Coniferous Forest |
0.12 |
|
|
Swamp |
0.14 |
|
|
Cultivated Land |
0.2 |
|
|
Grassland |
0.18 |
|
|
Urban |
0.16 |
|
|
Desert Shrubland |
0.28 |
|
|
Autumn |
Water (fresh and sea) |
0.14 |
|
Deciduous Forest |
0.12 |
|
|
Coniferous Forest |
0.12 |
|
|
Swamp |
0.16 |
|
|
Cultivated Land |
0.18 |
|
|
Grassland |
0.2 |
|
|
Urban |
0.18 |
|
|
Desert Shrubland |
0.28 |
|
|
Winter |
Water (fresh and sea) |
0.2 |
|
Deciduous Forest |
0.5 |
|
|
Coniferous Forest |
0.35 |
|
|
Swamp |
0.3 |
|
|
Cultivated Land |
0.6 |
|
|
Grassland |
0.6 |
|
|
Urban |
0.35 |
|
|
Desert Shrubland |
0.45 |
AERSURFACE Guidance
| Seasonal Categories | Short Terrain Description | Value |
|---|---|---|
|
Late autumn after frost and harvest; or winter with no snow |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.7 |
|
|
Developed Open Space |
0.18 |
|
|
Developed Low Intensity |
0.18 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.17 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.2 |
|
|
Sedge/ Herbaceous |
0.2 |
|
|
Lichens |
0.2 |
|
|
Moss |
0.2 |
|
|
Pasture/Hay |
0.18 |
|
|
Cultivated Crops |
0.18 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Winter with continuous snow on ground |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.7 |
|
|
Developed Open Space |
0.6 |
|
|
Developed Low Intensity |
0.45 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.25 |
|
|
Barren Land |
n/a (arid region) |
|
|
0.6 (non-arid region) |
||
|
Unconsolidated Shore |
0.3 |
|
|
Deciduous Forest |
0.5 |
|
|
Evergreen Forest |
0.35 |
|
|
Mixed Forest |
0.42 |
|
|
Dwarf Scrub |
n/a (arid region) |
|
|
0.5 (non-arid region) |
||
|
Shrub/Scrub |
n/a (arid region) |
|
|
0.5 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.6 |
|
|
Sedge/ Herbaceous |
0.6 |
|
|
Lichens |
0.6 |
|
|
Moss |
0.6 |
|
|
Pasture/Hay |
0.6 |
|
|
Cultivated Crops |
0.6 |
|
|
Woody Wetlands |
0.3 |
|
|
Palustrine Forested Wetland |
0.3 |
|
|
Palustrine Scrub/Shrub Wetland |
0.3 |
|
|
Estuarine Forested Wetland |
0.3 |
|
|
Estuarine Scrub/Shrub Wetland |
0.3 |
|
|
Emergent Herbaceous Wetland |
0.3 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.3 |
|
|
Estuarine Emergent Wetland |
0.1 |
|
|
Palustrine Aquatic Bed |
0.3 |
|
|
Estuarine Aquatic Bed |
0.3 |
|
|
Transitional spring with partial green coverage or short annuals |
Open Water |
0.01 |
|
Perennial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.14 |
|
|
Cultivated Crops |
0.14 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Transitional spring with partial green coverage or short annuals |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.14 |
|
|
Cultivated Crops |
0.14 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland
|
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Winter with continuous snow on ground |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.7 |
|
|
Developed Open Space |
0.6 |
|
|
Developed Low Intensity |
0.45 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.25 |
|
|
Barren Land |
n/a (arid region) |
|
|
0.6 (non-arid region) |
||
|
Unconsolidated Shore |
0.3 |
|
|
Deciduous Forest |
0.5 |
|
|
Evergreen Forest |
0.35 |
|
|
Mixed Forest |
0.42 |
|
|
Dwarf Scrub |
n/a (arid region) |
|
|
0.5 (non-arid region) |
||
|
Shrub/Scrub |
n/a (arid region) |
|
|
0.5 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.6 |
|
|
Sedge/ Herbaceous |
0.6 |
|
|
Lichens |
0.6 |
|
|
Moss |
0.6 |
|
|
Pasture/Hay |
0.6 |
|
|
Cultivated Crops |
0.6 |
|
|
Woody Wetlands |
0.3 |
|
|
Palustrine Forested Wetland |
0.3 |
|
|
Palustrine Scrub/Shrub Wetland |
0.3 |
|
|
Estuarine Forested Wetland |
0.3 |
|
|
Estuarine Scrub/Shrub Wetland |
0.3 |
|
|
Emergent Herbaceous Wetland |
0.3 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.3 |
|
|
Estuarine Emergent Wetland |
0.3 |
|
|
Palustrine Aquatic Bed |
0.3 |
|
|
Estuarine Aquatic Bed |
0.3 |
|
|
Open Water |
0.01 |
|
|
Perrenial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.14 |
|
|
Cultivated Crops |
0.14 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Transitional spring with partial green coverage or short annuals |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.14 |
|
|
Cultivated Crops |
0.14 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Midsummer with lush vegetation |
Open Water |
0.01 |
|
Perrenial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.2 |
|
|
Cultivated Crops |
0.2 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |
|
|
Autumn with unharvested cropland |
||
|
Open Water |
0.01 |
|
|
Perrenial Ice/Snow |
0.6 |
|
|
Developed Open Space |
0.15 |
|
|
Developed Low Intensity |
0.16 |
|
|
Developed Medium Intensity |
0.18 |
|
|
Developed High Intensity |
0.18 |
|
|
Barren Land |
0.2 |
|
|
Unconsolidated Shore |
0.14 |
|
|
Deciduous Forest |
0.16 |
|
|
Evergreen Forest |
0.12 |
|
|
Mixed Forest |
0.14 |
|
|
Dwarf Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Shrub/Scrub |
0.25 (arid region) |
|
|
0.18 (non-arid region) |
||
|
Grasslands/Herbaceous |
0.18 |
|
|
Sedge/ Herbaceous |
0.18 |
|
|
Lichens |
0.18 |
|
|
Moss |
0.18 |
|
|
Pasture/Hay |
0.2 |
|
|
Cultivated Crops |
0.2 |
|
|
Woody Wetlands |
0.14 |
|
|
Palustrine Forested Wetland |
0.14 |
|
|
Palustrine Scrub/Shrub Wetland |
0.14 |
|
|
Estuarine Forested Wetland |
0.14 |
|
|
Estuarine Scrub/Shrub Wetland |
0.14 |
|
|
Emergent Herbaceous Wetland |
0.14 |
|
|
Palustrine Emergent Wetland (Persistent) |
0.14 |
|
|
Estuarine Emergent Wetland |
0.14 |
|
|
Palustrine Aquatic Bed |
0.14 |
|
|
Estuarine Aquatic Bed |
0.14 |