The citation for this data is:

Williams, I. N., Lee, J. M., Tadic, J., Zhang, Y., & Chu, H. (2020). Modeling spatial heterogeneity 
in surface turbulent heat flux in the U.S. southern Great Plains. Journal of Geophysical Research: 
Atmospheres, 125,e2019JD032255. https://doi.org/10.1029/2019JD032255


There are 3 sets of output files:  

1. h0:  3-hourly averages, grid-cell averaged sensible, latent, radiation, and detailed energy balance 
and soil variables

2. h1:  1-hour averages of subgrid output for the dominant 4 PFTs, post-processed onto the regular
grid, only for sensible, latent and photosynthesis. 

3. h2:  daily averages of soil moisture, runoff, and LAI


It is recommended to use the h1 to compare to observation tower fluxes and h0 and h2 for analyses 
at the grid cell scale.

Surface forcing for running CLM4 (e.g., LAI, soil properties) is posted in the 'surfdata' directory.

The 17 PFTs used in CLM4 are:
0 bare
1 needleleaf evergreen temperate tree
2 needleleaf evergreen boreal tree
3 needleleaf deciduous boreal tree
4 broadleaf evergreen tropical tree
5 broadleaf evergreen temperate tree
6 broadleaf deciduous tropical tree
7 broadleaf deciduous temperate tree
8 broadleaf deciduous boreal tree
9 broadleaf evergreen temperate shrub
10 broadleaf deciduous temperate shrub
11 broadleaf deciduous boreal shrub
12 arctic c3 grass
13 cool c3 grass
14 warm c4 grass
15 crop
16 (not used)

In Williams et al. (2020), to better distinguish between the two dominant land-cover types, 'crop' was 
modified to be winter crop only, including winter wheat. Summer crops were categorized as C4 grass due
to their more similar phenologies compared to winter crops.