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 WARNING - L8 2025-10-07-21-54-43: Skipped due to cloud cover 11.45% > threshold 10.00% WARNING - L8 2025-10-07-21-55-07: Skipped due to cloud cover 13.87% > threshold 10.00% INFO - L8 2025-10-14-22-00-55 cloud cover : 5.55% INFO - L8 2025-10-14-22-00-55: sand: 0.00% ,whitewater: 0.07% ,water: 52.68% INFO - L8 2025-10-14-22-00-55: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 6 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 497 INFO - Number of shoreline points after removing points within 300m of cloud mask 406 INFO - Number of shoreline points before removing points within 30m of no data pixel 406 INFO - Number of shoreline points after removing points within 30m of no data pixel 406 INFO - L8 2025-10-23-21-54-41 cloud cover : 0.00% INFO - L8 2025-10-23-21-54-41: sand: 0.00% ,whitewater: 0.13% ,water: 54.67% INFO - L8 2025-10-23-21-54-41: 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: 1 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 457 INFO - Number of shoreline points before removing points within 30m of no data pixel 457 INFO - Number of shoreline points after removing points within 30m of no data pixel 456 INFO - L8 2025-10-23-21-55-05 cloud cover : 0.00% INFO - L8 2025-10-23-21-55-05: sand: 0.00% ,whitewater: 0.14% ,water: 54.63% INFO - L8 2025-10-23-21-55-05: 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 459 INFO - Number of shoreline points after removing points within 300m of cloud mask 459 INFO - Number of shoreline points before removing points within 30m of no data pixel 459 INFO - Number of shoreline points after removing points within 30m of no data pixel 458 INFO - L8 2025-10-30-22-00-56 cloud cover : 0.00% INFO - L8 2025-10-30-22-00-56: sand: 0.02% ,whitewater: 0.12% ,water: 54.73% INFO - L8 2025-10-30-22-00-56: 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 459 INFO - Number of shoreline points after removing points within 300m of cloud mask 459 INFO - Number of shoreline points before removing points within 30m of no data pixel 459 INFO - Number of shoreline points after removing points within 30m of no data pixel 459 INFO - L8 2025-11-08-21-54-45 cloud cover : 0.00% INFO - L8 2025-11-08-21-54-45: sand: 0.00% ,whitewater: 0.07% ,water: 55.46% INFO - L8 2025-11-08-21-54-45: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 459 INFO - Number of shoreline points after removing points within 300m of cloud mask 459 INFO - Number of shoreline points before removing points within 30m of no data pixel 459 INFO - Number of shoreline points after removing points within 30m of no data pixel 459 INFO - L8 2025-11-08-21-55-09 cloud cover : 0.00% INFO - L8 2025-11-08-21-55-09: sand: 0.00% ,whitewater: 0.07% ,water: 55.36% INFO - L8 2025-11-08-21-55-09: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 459 INFO - Number of shoreline points after removing points within 300m of cloud mask 459 INFO - Number of shoreline points before removing points within 30m of no data pixel 459 INFO - Number of shoreline points after removing points within 30m of no data pixel 459 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-11-07-22-01-01 cloud cover : 0.00% INFO - L9 2025-11-07-22-01-01: sand: 0.00% ,whitewater: 1.02% ,water: 53.94% INFO - L9 2025-11-07-22-01-01: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 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 457 INFO - Number of shoreline points before removing points within 30m of no data pixel 457 INFO - Number of shoreline points after removing points within 30m of no data pixel 456 INFO - L9 2025-11-16-21-54-49 cloud cover : 6.34% INFO - L9 2025-11-16-21-54-49: sand: 0.00% ,whitewater: 3.83% ,water: 48.18% INFO - L9 2025-11-16-21-54-49: 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 366 INFO - Number of shoreline points after removing points within 300m of cloud mask 286 INFO - Number of shoreline points before removing points within 30m of no data pixel 286 INFO - Number of shoreline points after removing points within 30m of no data pixel 283 INFO - L9 2025-11-16-21-55-13 cloud cover : 3.03% INFO - L9 2025-11-16-21-55-13: sand: 0.00% ,whitewater: 4.15% ,water: 48.69% INFO - L9 2025-11-16-21-55-13: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 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 428 INFO - Number of shoreline points after removing points within 300m of cloud mask 402 INFO - Number of shoreline points before removing points within 30m of no data pixel 402 INFO - Number of shoreline points after removing points within 30m of no data pixel 399