INFO - Please read the following information carefully: INFO - find_wl_contours2: A method for extracting shorelines that uses the sand water interface detected with the model to refine the threshold that's used to detect shorelines . - This is the default method used when there are enough sand pixels within the reference shoreline buffer. INFO - find_wl_contours1: This shoreline extraction method uses a threshold to differentiate between water and land pixels in images, relying on Modified Normalized Difference Water Index (MNDWI) values. However, it may inaccurately classify snow and ice as water, posing a limitation in certain environments. - This is only used when not enough sand pixels are detected within the reference shoreline buffer. INFO - --------------------------------------------------------------------------------------------------------------------- INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 INFO - L8 2025-10-21-22-07-03 cloud cover : 0.00% INFO - L8 2025-10-21-22-07-03: sand: 3.60% ,whitewater: 0.00% ,water: 43.35% INFO - L8 2025-10-21-22-07-03: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 53 INFO - Number of shoreline points after removing points within 300m of cloud mask 53 INFO - Number of shoreline points before removing points within 30m of no data pixel 53 INFO - Number of shoreline points after removing points within 30m of no data pixel 53 INFO - L8 2025-10-21-22-07-27 cloud cover : 0.00% INFO - L8 2025-10-21-22-07-27: sand: 3.46% ,whitewater: 0.00% ,water: 45.26% INFO - L8 2025-10-21-22-07-27: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 49 INFO - Number of shoreline points after removing points within 300m of cloud mask 49 INFO - Number of shoreline points before removing points within 30m of no data pixel 49 INFO - Number of shoreline points after removing points within 30m of no data pixel 49 INFO - L8 2025-10-28-22-13-17 cloud cover : 0.00% INFO - L8 2025-10-28-22-13-17: sand: 17.05% ,whitewater: 3.97% ,water: 32.95% INFO - L8 2025-10-28-22-13-17: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 2 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 44 INFO - Number of shoreline points after removing points within 300m of cloud mask 44 INFO - Number of shoreline points before removing points within 30m of no data pixel 44 INFO - Number of shoreline points after removing points within 30m of no data pixel 44 INFO - L8 2025-11-06-22-07-07 cloud cover : 0.00% INFO - L8 2025-11-06-22-07-07: sand: 3.74% ,whitewater: 0.00% ,water: 44.88% INFO - L8 2025-11-06-22-07-07: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 51 INFO - Number of shoreline points after removing points within 300m of cloud mask 51 INFO - Number of shoreline points before removing points within 30m of no data pixel 51 INFO - Number of shoreline points after removing points within 30m of no data pixel 51 INFO - L8 2025-11-06-22-07-31 cloud cover : 0.00% INFO - L8 2025-11-06-22-07-31: sand: 2.69% ,whitewater: 0.00% ,water: 46.67% INFO - L8 2025-11-06-22-07-31: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 46 INFO - Number of shoreline points after removing points within 300m of cloud mask 46 INFO - Number of shoreline points before removing points within 30m of no data pixel 46 INFO - Number of shoreline points after removing points within 30m of no data pixel 46 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-10-29-22-07-05 cloud cover : 0.00% INFO - L9 2025-10-29-22-07-05: sand: 15.10% ,whitewater: 3.32% ,water: 24.38% INFO - L9 2025-10-29-22-07-05: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 44 INFO - Number of shoreline points after removing points within 300m of cloud mask 44 INFO - Number of shoreline points before removing points within 30m of no data pixel 44 INFO - Number of shoreline points after removing points within 30m of no data pixel 44 INFO - L9 2025-10-29-22-07-29 cloud cover : 0.00% INFO - L9 2025-10-29-22-07-29: sand: 14.87% ,whitewater: 2.95% ,water: 28.33% INFO - L9 2025-10-29-22-07-29: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 45 INFO - Number of shoreline points after removing points within 300m of cloud mask 45 INFO - Number of shoreline points before removing points within 30m of no data pixel 45 INFO - Number of shoreline points after removing points within 30m of no data pixel 45 WARNING - L9 2025-11-05-22-13-22: Skipped due to cloud cover 34.21% > threshold 10.00% INFO - L9 2025-11-14-22-07-12 cloud cover : 0.00% INFO - L9 2025-11-14-22-07-12: sand: 21.19% ,whitewater: 7.76% ,water: 25.35% INFO - L9 2025-11-14-22-07-12: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 43 INFO - Number of shoreline points after removing points within 300m of cloud mask 43 INFO - Number of shoreline points before removing points within 30m of no data pixel 43 INFO - Number of shoreline points after removing points within 30m of no data pixel 43 INFO - L9 2025-11-14-22-07-36 cloud cover : 0.00% INFO - L9 2025-11-14-22-07-36: sand: 20.51% ,whitewater: 7.56% ,water: 28.72% INFO - L9 2025-11-14-22-07-36: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 2 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 46 INFO - Number of shoreline points after removing points within 300m of cloud mask 46 INFO - Number of shoreline points before removing points within 30m of no data pixel 46 INFO - Number of shoreline points after removing points within 30m of no data pixel 46