Table 1 Assessments of satellite-derived waterlines from different satellites using SHOREX and SAET extraction tools. The test sites and methods are characterised, and the errors when employing the different satellite images are expressed by the RMSE (m).
From: A remote monitoring approach for coastal engineering projects
Software | SHOREX | SHOREX | SHOREX | SAET | SAET | SAET |
|---|---|---|---|---|---|---|
Coastal setting | Mediterranean38 | Exposed Pacific39 | Exposed Atlantic40 | Semi-enclosed sea32 | 6 NE Atlantic and 3 Mediterranean sites41 | Exposed Atlantic42 |
Location | Cala Millor (Mallorca, Spain) | Reñaca (Central Chile) | Faro (S Portugal) | El Saler (E Spain) | Dutch coast, Mira (N Portugal), Basque Country (SW France),W Mediterranean (E Spain) | La Victoria (SW Spain) |
Type | Reflective | Dissipative | Reflective | Reflective | Reflective & dissipative | Dissipative |
Tide | Microtidal | Microtidal | Mesotidal | Microtidal | Micro and mesotidal | Mesotidal |
No. dates | 91 | 7 | 24 | 4 | 9 | 18 |
Reference | Video | Video | GNSS cross-shore | GNSS alongshore | VHR images | Video |
Acquisition (time lag) | Coincident | Coincident | Close dates (< 7 days) | Close in time (minutes) | Close in time (minutes/hours) | Coincident |
Accuracy S2 (m) | 3.01 | 4.55 | 4.58 | 3.23 | 3.7–13.5 | 5.96 |
Accuracy landsat 8 (m) | 3.57 | 5.77 | 3.19 | – | – |
