specify -9999 as nodata in metadata
Working with Hydrosheds
Investigate how and where water flows
USGS Landsat 8 Collection 1 Tier 1 and Real-Time data TOA Reflectance (Orthorectified)
Cloudiest day of the year
Use MODIS to determine the cloudiest day of they year
Number of Landsat images for an area
Check density of images for an area
Replace mask with -9999
Because -9999 often works better than 0 for a DEM
Filter for a specific month
In case you want all images for January, February, March, ..
