https://data.eol.ucar.edu/dataset/529.003
NSF NCAR EOL data archive -- Flight Tracks - Google Earth .kml files
google earth kmldata archivensfncareol
https://www.olafbathke.de/photography-blog/2016/07/21/convert-google-mymaps-kml-data-to-pocket-earth-gpx-format/convert-google-mymaps-kml-data-to-pocket-earth-gpx-format-12/
Convert Google-MyMaps-KML-Data-to-Pocket-Earth-GPX-Format-12 - Nature Photography - Olaf Bathke