NOAA isd-history lists stations that doesn't exist

[abekhit]

In use_NOAA_station_list branch, the station list (isd-history) is filtered to include stations between invoices start and end dates. This makes the tool more flexible in station search rather than fixed df in Constants. However, there are some stations in isd-history that doesn't have weather data in the year directory even when end date ('END') > year.

How would we build a robust station list that we are sure it has data?

[abekhit]

Use isd-inventory to check data availability