Requires a list of sites, and a settings file.
ingest_modis_bysite(siteinfo, settings)
A named list containing information required for download from Google Earth Engine.
Returns a list of two data frames, one with data at original modis dates (df), and one interpolated to all days (ddf).
if (FALSE) { # \dontrun{
df <- ingest_modis_bysite( bundle = "modis_fpar" )
} # }