Name |
Description |
Units |
Range |
Source |
Time scale |
SoilClass |
Soil texture class |
- |
Max = 12 Min = 0 |
ISLSCP-II |
fixed |
SoilDepth |
Depth of active
soil column |
m |
Max = 30.0 Min = 0.0 |
ISLSCP-I |
fixed |
Clay |
Clay fraction |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
Sand |
Sand fraction |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
Silt |
Silt fraction |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
Organic |
Organic fraction |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
Elevation |
Mean grid elevation |
m |
Max = 9000.0 Min = -400.0 |
ISLSCP-II |
fixed |
Slope |
Mean slope |
m m-1 |
Max = 1.0 Min = 0.01 |
ISLSCP-II |
fixed |
W_fieldcap |
Field capacity |
m3 m-3 |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
W_wilt |
Wilting point |
m3 m-3 |
Max = 1.0 Min = 0.0 |
ISLSCP-II |
fixed |
W_sat |
Saturated water
content |
m3 m-3 |
Max = 1.0 Min = 0.0 |
ISLSCP-II CEA84 |
fixed |
W_bpower |
B exponent |
- |
Max = 15.0 Min = 1.0 |
CEA84 |
fixed |
W_sat_hydc |
Saturated hydraulic
conductivity |
m s-1 |
Max = 0.0001 Min = 0.0 |
ISLSCP-II CEA84 |
fixed |
W_sat_matp |
Saturated matric potential |
m |
Max = -0.0001 Min = -3.0 |
CEA84 |
fixed |
Albedo_vi |
Visible albedo of
soil (snow free) |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-I |
fixed |
Albedo_ir |
Near-infrared albedo
of soil (snow free) |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-I |
fixed |
Albedo_soil |
Total albedo of soil (snow free) |
- |
Max = 1.0 Min = 0.0 |
ISLSCP-I |
fixed |
Cti |
Compound topographic index |
- |
Max = 13.5 Min = 0.0 |
ISLSCP-II |
fixed |
SoilTemp_init |
Initial soil temperature |
- |
Max = 350.0 Min = 190.0 |
NCEP |
fixed |
Texture |
|
USDA |
Cosby (RhoneAGG) USDA |
||||||||
Class |
|
Sand |
Silt |
Clay |
Quartz |
Wfc |
Wwilt |
Wsat |
b |
PHIsat |
Ksat |
1 |
Sand |
92% |
5% |
3% |
0.92 |
0.132 |
0.033 |
0.373 |
3.30 |
-0.05 |
2.45E-05 |
2 |
Loamy
Sand |
82% |
12% |
6% |
0.82 |
0.156 |
0.051 |
0.386 |
3.80 |
-0.07 |
1.75E-05 |
3 |
Sandy
Loam |
58% |
32% |
10% |
0.60 |
0.196 |
0.086 |
0.419 |
4.34 |
-0.16 |
8.35E-06 |
4 |
Loam |
43% |
39% |
18% |
0.40 |
0.250 |
0.148 |
0.437 |
5.96 |
-0.24 |
4.66E-06 |
5 |
Silt
Loam |
17% |
70% |
13% |
0.25 |
0.270 |
0.169 |
0.476 |
5.25 |
-0.65 |
2.36E-06 |
6 |
Silt |
10% |
85% |
5% |
0.10 |
0.361 |
0.045 |
0.471 |
3.63 |
-0.84 |
1.10E-06 |
7 |
Sandy
Clay Loam |
58% |
15% |
27% |
0.60 |
0.253 |
0.156 |
0.412 |
7.32 |
-0.12 |
6.31E-06 |
8 |
Clay
Loam |
32% |
34% |
34% |
0.35 |
0.301 |
0.211 |
0.447 |
8.34 |
-0.28 |
2.72E-06 |
9 |
Silty Clay Loam |
10% |
56% |
34% |
0.10 |
0.334 |
0.249 |
0.478 |
8.41 |
-0.63 |
1.44E-06 |
10 |
Sandy
Clay |
52% |
6% |
42% |
0.52 |
0.288 |
0.199 |
0.415 |
9.70 |
-0.12 |
4.25E-06 |
11 |
Silty Clay |
6% |
47% |
47% |
0.10 |
0.363 |
0.286 |
0.478 |
10.78 |
-0.58 |
1.02E-06 |
12 |
Clay |
22% |
20% |
58% |
0.25 |
0.353 |
0.276 |
0.450 |
12.93 |
-0.27 |
1.33E-06 |
Name |
Description |
Units |
Range |
Source |
Time scale |
Period |
VegClass |
Vegetation class |
- |
Max = 21 Min = 0 |
IGBP, U. |
fixed |
- |
LAI |
Leaf area index |
m2 m-2 |
Max = 8.08 Min = 0.0 |
|
monthly |
1982-1995 |
vegFrac |
Fraction of vegetation
cover |
- |
Max = 1.0 Min = 0.0 |
|
fixed |
- |
grnFrac |
Greenness fraction (green LAI /
Total LAI) |
- |
Max = 1.0 Min = 0.0 |
Calculated from |
monthly |
1982-1995 |
classFrac |
Fraction of each VegClass (not in |
- |
Max = 1.0 Min = 0.0 |
IGBP; U. |
fixed |
- |
NDVI |
Normalized difference
vegetation index |
- |
Max = 1.0 Min = 0.0 |
|
monthly |
1982-1995 |
FPAR |
Fraction of photosynthetically active radiation |
- |
Max = 1.0 Min = 0.0 |
|
monthly |
1982-1995 |
Z0Surf |
Roughness length |
m |
Max = 10.0 Min = 0.0 |
|
monthly |
1982-1995 |
DisplH |
Zero plane displacement
height |
m |
Max = 50.0 Min = 0.0 |
|
monthly |
1982-1995 |
Albedo |
Snow-free albedo |
- |
Max = 1.0 Min = 0.0 |
CSU |
monthly |
1982-1995 |
RootDepth |
Root depth (mean
50% and 95% ecosystem rooting depth) |
m |
Max = 30.0 Min = 0.1 |
ISLSCP-II |
fixed |
- |
Rs_min |
Minimum stomatal resistance |
s m-1 |
Max = 1000.0 Min = 10.0 |
Look-up table |
fixed |
- |
Simple Biosphere (SiB) |
Biosphere Atmosphere Transfer Scheme (BATS) Land
Cover |
||||
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 |
Evergreen Broadleaf Deciduous Deciduous Broadleaf Mixed Closed Shrublands Open Shrublands Woody Savannas Savannas Grasslands Permanent Wetlands Croplands Urban and Built-Up Cropland & Natural Vegetation Snow and Ice Barren or Sparsely Vegetated Water Bodies Missing Data |
1 2 3 4 5 6
8
10
12 13 14 15 16 |
Evergreen Broadleaf Trees Broadleaf Deciduous Trees Deciduous and Evergreen Trees Evergreen Needleleaf Trees Deciduous Needleleaf Trees Ground Cover with Trees and Shrubs Groundcover Only Broadleaf Shrubs with Perennial Ground Cover Broadleaf Shrubs with Bare Soil Groundcover with Dwarf Trees and Shrubs Bare Soil Agriculture or C3 Grassland Persistent Wetland Water Ice Cap and Glacier Missing Data |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
Crops, Mixed Farming Short Grass Evergreen Needleleaf Trees Deciduous Needleleaf Trees Deciduous Broadleaf Trees Evergreen Broadleaf Trees Tall Grass Desert Tundra Irrigated Crops Semi-desert Ice Caps and Glaciers Bogs and Marshes Inland Water Ocean Evergreen Shrubs Deciduous Shrubs Mixed Forest/Field Mosaic Water and Land Mixtures Missing Data |
Name |
Description |
Units |
Range |
Source |
Time Scale |
Tair |
Near
surface air temperature at 2m |
K |
Max = 350 Min = 190 |
NCEP, CRU |
3 hourly |
Qair |
Near
surface specific humidity at 2m |
kg kg-1 |
Max = 0.07 Min = 0 |
NCEP, CRU |
3 hourly |
Wind |
Near
surface wind speed at 10m |
m s-1 |
Max = 75 Min = 0 |
NCEP |
3 hourly |
SWdown |
Surface
incident shortwave radiation |
W m-2 |
Max = 1360 Min = 0 |
SRB (with NCEP for spin-up period) |
3 hourly |
LWdown |
Surface
incident longwave radiation |
W m-2 |
Max = 750 Min = 0 |
As above |
3 hourly |
Psurf |
Surface
pressure |
Pa |
Max = 113000 Min = 50000 |
NCEP, EDC |
3 hourly |
Rainf |
Rainfall
rate |
kg m-2 s-1 |
Max = 0.03 Min = 0 |
NCEP, GPCC GPCP (and CRU for spin-up period) |
3 hourly |
Rainf_C |
Convective
rainfall rate |
kg m-2 s-1 |
Max = 0.03 Min = 0 |
As above |
3 hourly |
Snowf |
Snowfall
rate |
kg m-2 s-1 |
Max = 0.007 Min = 0 |
As above |
3 hourly |
Fixed Fields |
File |
SoilClass |
soilclass |
SoilDepth |
soildepth |
Clay |
clay |
Sand |
sand |
Silt |
silt |
Organic |
organic |
Elevation |
elevation |
Slope |
slope |
W_fieldcap |
w_fieldcap |
W_wilt |
w_wilt |
W_sat |
w_sat |
W_bpower |
w_bpower_cea84 |
W_sat_hydc |
w_sat_hydc |
W_sat_matp |
w_sat_matp |
Albedo_vi |
albedo_vi |
Albedo_ir |
albedo_ir |
Albedo_soil |
albedo_soil |
VegClass |
vegclass_igbp, _sib, _bats |
classFrac |
classfrac |
RootDepth |
rootdepth_50,
_95 |
vegFrac |
vegfrac |
Cti |
cti |
SoilTemp_init |
soiltemp_init |
Grid only |
File |
Landmask |
landmask |
Monthly Fields |
File |
LAI |
lai |
grnFrac |
grnfrac |
NDVI |
ndvi |
FPAR |
fpar |
Z0Surf |
z0surf |
DisplH |
displh |
Albedo |
albedo_csu |
3-hourly Fields |
File |
Tair |
tair_cru |
Qair |
qair_cru |
Wind |
wind_ncep |
SWdown |
swdown_srb |
LWdown |
lwdown_srb |
Psurf |
psurf_ecor |
Rainf |
rainf_gswp |
Rainf_C |
rainf_c_gswp |
Snowf |
snowf_gswp |