Structure of the data

Source:                    NCEP Global Data Assimilation System (GDAS)

Resolution:                0.25-degree lat-lon
# of grids in x-direction: 25
x direction:               West to East
Start longitude:           27E
End longitude:             33E

# of grids in y-direction: 25
y direction:               South to North
Start latitude:            5S
End latitude:              1N

Data in a 25 x 25 matrix, starting with the lower-left corner (5S,27N),
going eastward then northward to the upper-right corner (1N,33E).

Undefined data:            -999.
format:                    %13.7f

Variable
soilw:                     Volumetric soil moisture, 0-10 cm layer
u10m:                      u-component at 10 m in m s-1
v10m:                      v-component at 10 m in m s-1
u850:                      u-component at 850 hPa in m s-1
v850:                      v-component at 850 hPa in m s-1
u700:                      u-component at 700 hPa in m s-1
v700:                      v-component at 700 hPa in m s-1