“Flex 2018” Cruise: an opportunity to assess phytoplankton chlorophyll fluorescence retrieval at different observative scales Angelini, F.; Artuso, F.; Brando, V.; Colella, S.; Damm, A.; Di Cicco, A.; Fiorani, L.; Genangeli, A.; Gupana, R.; Lai, A.; Miglietta, F.; Santoleri, R. BOOK CHAPTER Part of the book: Eighth International Symposium “Monitoring of Mediterranean Coastal Areas. Problems and Measurement Techniques”