[] Data
HAND (int32, cm):
file: /gpfs_scratch/nfie/users/Harvey/harvey_hand_int32cm.tif
URL: http://nfie.roger.ncsa.illinois.edu/nfiedata/Harvey/harvey_hand_int32cm.tif

HAND (float, meter):
file: /gpfs_scratch/nfie/users/Harvey/harvey_hand_float.tif
URL: http://nfie.roger.ncsa.illinois.edu/nfiedata/Harvey/harvey_hand_float.tif

stream grid src (short, binary):
file: /gpfs_scratch/nfie/users/Harvey/harvey_src.tif
URL: http://nfie.roger.ncsa.illinois.edu/nfiedata/Harvey/harvey_src.tif

[] steps taken to create HAND for Harvey affected area:
1. create huc6 hand list for harvey study area, output is harvey_huc6.list

2. create vrt from the hand list

gdalbuildvrt -input_file_list ./harvey_huc6.list harvey_huc6.vrt

3. create a single shape for cropping:

ogr2ogr harvey_singleshape.shp Tx_Counties_Harvey_zone/Tx_Counties_Harvey_zone.shp -dialect sqlite -sql "SELECT ST_Union(geometry) AS geometry FROM Tx_Counties_Harvey_zone"

4. subset huc6 vrt using the shape (50min):
gdalwarp -cutline /gpfs_scratch/nfie/users/Harvey/Tx_Counties_Harvey_zone/harvey_singleshape.shp -cl harvey_singleshape  -crop_to_cutline -of GTiff -overwrite -co "BIGTIFF=YES" /gpfs_scratch/nfie/users/Harvey/harvey_huc6.vrt harvey_hand_float.tif

5. convert float to integer (4min)
/gpfs_scratch/taudem/TauDEM-CatchHydroGeo/handf2i -hand harvey_hand_float.tif -o harvey_hand_int32cm.tif

[] HAND tiles processed using arcgis:
https://tiles.arcgis.com/tiles/2Pv4ow3pE6NFC9SW/arcgis/rest/services/RenderedHAND_5ft/MapServer