Sesimbra and Arrabida
- Best months
- Not enough data
- Level
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- Days needed
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Sesimbra and Arrabida from Sentinel-2, 29 January 2023 · Contains modified Copernicus Sentinel data 2023; depth contours approximate (NOAA ETOPO 2022)
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Citizen science
Turn every dive into ocean science
The ocean covers 70% of the planet but is the least-recorded place on Earth. Scientists can't be on every reef. Divers are.
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What happens to one sighting
- You log itWhat you saw, from your dive computer file or by hand.
- We check itPinned to the dive site and matched to a scientific name.
- Scientists can use itKept with its date, depth and place, in the format the big open species databases like GBIF use.
What scientists need, and how you help
- More places
Most ocean records come from a few coasts. Log every dive, even quiet sites.
- What wasn't there
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- Same reefs, every year
Change only shows up over years. Keep logging your home reef.
- Names they can trust
Lookalike species trip up records. Tag animals and add a photo.