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 2025-08-25-22-14-39 cloud cover : 0.00% INFO - L8 2025-08-25-22-14-39: sand: 0.00% ,whitewater: 0.37% ,water: 51.24% INFO - L8 2025-08-25-22-14-39: 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 245 INFO - Number of shoreline points after removing points within 300m of cloud mask 245 INFO - Number of shoreline points before removing points within 30m of no data pixel 245 INFO - Number of shoreline points after removing points within 30m of no data pixel 245 INFO - L8 2025-09-01-22-20-29 cloud cover : 0.00% INFO - L8 2025-09-01-22-20-29: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L8 2025-09-01-22-20-29: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 36 shorelines. Number of shorelines after filtering shorelines: 6 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 535 INFO - Number of shoreline points after removing points within 300m of cloud mask 535 INFO - Number of shoreline points before removing points within 30m of no data pixel 535 INFO - Number of shoreline points after removing points within 30m of no data pixel 535 INFO - L8 2025-09-01-22-20-53 cloud cover : 0.00% INFO - L8 2025-09-01-22-20-53: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L8 2025-09-01-22-20-53: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 31 shorelines. Number of shorelines after filtering shorelines: 6 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 544 INFO - Number of shoreline points after removing points within 300m of cloud mask 544 INFO - Number of shoreline points before removing points within 30m of no data pixel 544 INFO - Number of shoreline points after removing points within 30m of no data pixel 544 INFO - L8 2025-09-10-22-14-44 cloud cover : 0.00% INFO - L8 2025-09-10-22-14-44: sand: 0.37% ,whitewater: 0.56% ,water: 49.39% INFO - L8 2025-09-10-22-14-44: 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 187 INFO - Number of shoreline points after removing points within 300m of cloud mask 187 INFO - Number of shoreline points before removing points within 30m of no data pixel 187 INFO - Number of shoreline points after removing points within 30m of no data pixel 187 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-09-02-22-14-47 cloud cover : 0.00% INFO - L9 2025-09-02-22-14-47: sand: 0.38% ,whitewater: 5.65% ,water: 45.99% INFO - L9 2025-09-02-22-14-47: 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 233 INFO - Number of shoreline points after removing points within 300m of cloud mask 233 INFO - Number of shoreline points before removing points within 30m of no data pixel 233 INFO - Number of shoreline points after removing points within 30m of no data pixel 233 INFO - L9 2025-09-09-22-20-36 cloud cover : 0.00% INFO - L9 2025-09-09-22-20-36: sand: 0.00% ,whitewater: 0.03% ,water: 4.08% INFO - L9 2025-09-09-22-20-36: 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 60 INFO - Number of shoreline points after removing points within 300m of cloud mask 60 INFO - Number of shoreline points before removing points within 30m of no data pixel 60 INFO - Number of shoreline points after removing points within 30m of no data pixel 58 INFO - L9 2025-09-09-22-21-00 cloud cover : 0.00% INFO - L9 2025-09-09-22-21-00: sand: 0.00% ,whitewater: 0.04% ,water: 4.00% INFO - L9 2025-09-09-22-21-00: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 7 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 60 INFO - Number of shoreline points after removing points within 300m of cloud mask 60 INFO - Number of shoreline points before removing points within 30m of no data pixel 60 INFO - Number of shoreline points after removing points within 30m of no data pixel 58 INFO - L9 2025-09-18-22-14-49 cloud cover : 0.00% INFO - L9 2025-09-18-22-14-49: sand: 0.80% ,whitewater: 2.75% ,water: 47.27% INFO - L9 2025-09-18-22-14-49: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 185 INFO - Number of shoreline points after removing points within 300m of cloud mask 185 INFO - Number of shoreline points before removing points within 30m of no data pixel 185 INFO - Number of shoreline points after removing points within 30m of no data pixel 185 INFO - L9 2025-09-25-22-20-40 cloud cover : 0.00% INFO - L9 2025-09-25-22-20-40: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L9 2025-09-25-22-20-40: 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: 5 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 370 INFO - Number of shoreline points after removing points within 300m of cloud mask 370 INFO - Number of shoreline points before removing points within 30m of no data pixel 370 INFO - Number of shoreline points after removing points within 30m of no data pixel 365 INFO - L9 2025-09-25-22-21-04 cloud cover : 0.00% INFO - L9 2025-09-25-22-21-04: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L9 2025-09-25-22-21-04: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 12 shorelines. Number of shorelines after filtering shorelines: 5 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 383 INFO - Number of shoreline points after removing points within 300m of cloud mask 383 INFO - Number of shoreline points before removing points within 30m of no data pixel 383 INFO - Number of shoreline points after removing points within 30m of no data pixel 378