Sentinel-2 NDVI kışın bulut yüzünden işe yaramıyor, siz ne yapıyorsunuz?

Derya, same problem in Larissa in winter. What works for us:use the scene classification layer (SCL) to mask cloud and cloud shadow, not only clouddo not compare single dates, compare the best clear date in each 2-3 week windowSentinel-1 radar sees through clouds; VH backscatter follows wheat biomass reasonably well, but it is noisy and needs some checks in the fieldI am preparing an article on Sentinel-2 and NDVI for the platform, it should be online in a few weeks.

Bulutlu dönemde biz kritik tarlalarda drone ile uçuyoruz, bulutun altında kaldığımız için sorun olmuyor. Tabii her tarla için değil: uydu ön tarama yapıyor, sorun görünen yere drone gidiyor.

Another option is ground data: a few soil moisture probes and one weather station per area. Satellite tells you where, the probe tells you when. In cloudy months the probes keep working 🙂

Εγώ δεν είμαι ειδική, απλή παραγωγός. Χρησιμοποιώ μια δωρεάν εφαρμογή που δείχνει NDVI και κοιτάω μόνο τις καθαρές μέρες. Για τις αμυγδαλιές μου αρκεί. Ευχαριστώ για τις συμβουλές, τα διάβασα όλα με τη μετάφραση.