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 2025-10-21-22-07-27 cloud cover : 0.00% INFO - L8 2025-10-21-22-07-27: sand: 0.00% ,whitewater: 0.00% ,water: 52.03% 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: 5 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 489 INFO - Number of shoreline points after removing points within 300m of cloud mask 489 INFO - Number of shoreline points before removing points within 30m of no data pixel 489 INFO - Number of shoreline points after removing points within 30m of no data pixel 489 INFO - L8 2025-10-28-22-13-17 cloud cover : 0.00% INFO - L8 2025-10-28-22-13-17: sand: 0.00% ,whitewater: 0.11% ,water: 51.41% INFO - L8 2025-10-28-22-13-17: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 490 INFO - Number of shoreline points after removing points within 300m of cloud mask 490 INFO - Number of shoreline points before removing points within 30m of no data pixel 490 INFO - Number of shoreline points after removing points within 30m of no data pixel 490 INFO - L8 2025-10-28-22-13-41 cloud cover : 0.00% INFO - L8 2025-10-28-22-13-41: sand: 0.00% ,whitewater: 0.12% ,water: 51.39% INFO - L8 2025-10-28-22-13-41: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 490 INFO - Number of shoreline points after removing points within 300m of cloud mask 490 INFO - Number of shoreline points before removing points within 30m of no data pixel 490 INFO - Number of shoreline points after removing points within 30m of no data pixel 490 INFO - L8 2025-11-06-22-07-31 cloud cover : 0.00% INFO - L8 2025-11-06-22-07-31: sand: 0.00% ,whitewater: 0.00% ,water: 52.02% 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: 11 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 488 INFO - Number of shoreline points after removing points within 300m of cloud mask 488 INFO - Number of shoreline points before removing points within 30m of no data pixel 488 INFO - Number of shoreline points after removing points within 30m of no data pixel 488 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-10-29-22-07-29 cloud cover : 0.00% INFO - L9 2025-10-29-22-07-29: sand: 0.00% ,whitewater: 0.00% ,water: 51.16% INFO - L9 2025-10-29-22-07-29: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 9 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 484 INFO - Number of shoreline points after removing points within 300m of cloud mask 484 INFO - Number of shoreline points before removing points within 30m of no data pixel 484 INFO - Number of shoreline points after removing points within 30m of no data pixel 484 INFO - L9 2025-11-05-22-13-22 cloud cover : 0.00% INFO - L9 2025-11-05-22-13-22: sand: 0.00% ,whitewater: 0.00% ,water: 52.03% INFO - L9 2025-11-05-22-13-22: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 10 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 488 INFO - Number of shoreline points after removing points within 300m of cloud mask 488 INFO - Number of shoreline points before removing points within 30m of no data pixel 488 INFO - Number of shoreline points after removing points within 30m of no data pixel 488 INFO - L9 2025-11-05-22-13-46 cloud cover : 0.00% INFO - L9 2025-11-05-22-13-46: sand: 0.00% ,whitewater: 0.00% ,water: 52.01% INFO - L9 2025-11-05-22-13-46: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 9 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 488 INFO - Number of shoreline points after removing points within 300m of cloud mask 488 INFO - Number of shoreline points before removing points within 30m of no data pixel 488 INFO - Number of shoreline points after removing points within 30m of no data pixel 488 INFO - L9 2025-11-14-22-07-36 cloud cover : 0.00% INFO - L9 2025-11-14-22-07-36: sand: 0.00% ,whitewater: 0.00% ,water: 51.84% INFO - L9 2025-11-14-22-07-36: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 17 shorelines. Number of shorelines after filtering shorelines: 3 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 606 INFO - Number of shoreline points after removing points within 300m of cloud mask 606 INFO - Number of shoreline points before removing points within 30m of no data pixel 606 INFO - Number of shoreline points after removing points within 30m of no data pixel 605 INFO - L9 2025-11-21-22-13-19 cloud cover : 9.34% INFO - L9 2025-11-21-22-13-19: sand: 0.00% ,whitewater: 0.00% ,water: 49.92% INFO - L9 2025-11-21-22-13-19: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 18 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 457 INFO - Number of shoreline points after removing points within 300m of cloud mask 380 INFO - Number of shoreline points before removing points within 30m of no data pixel 380 INFO - Number of shoreline points after removing points within 30m of no data pixel 380 INFO - L9 2025-11-21-22-13-43 cloud cover : 9.28% INFO - L9 2025-11-21-22-13-43: sand: 0.00% ,whitewater: 0.00% ,water: 49.83% INFO - L9 2025-11-21-22-13-43: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 19 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 462 INFO - Number of shoreline points after removing points within 300m of cloud mask 385 INFO - Number of shoreline points before removing points within 30m of no data pixel 385 INFO - Number of shoreline points after removing points within 30m of no data pixel 385