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 2025-12-06-22-20-39 cloud cover : 0.00% INFO - L8 2025-12-06-22-20-39: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L8 2025-12-06-22-20-39: 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: 3 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 345 INFO - Number of shoreline points after removing points within 300m of cloud mask 345 INFO - Number of shoreline points before removing points within 30m of no data pixel 345 INFO - Number of shoreline points after removing points within 30m of no data pixel 345 INFO - L8 2025-12-15-22-14-28 cloud cover : 0.00% INFO - L8 2025-12-15-22-14-28: sand: 0.00% ,whitewater: 0.39% ,water: 50.17% INFO - L8 2025-12-15-22-14-28: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 203 INFO - Number of shoreline points after removing points within 300m of cloud mask 203 INFO - Number of shoreline points before removing points within 30m of no data pixel 203 INFO - Number of shoreline points after removing points within 30m of no data pixel 203 INFO - L8 2025-12-15-22-14-52 cloud cover : 0.00% INFO - L8 2025-12-15-22-14-52: sand: 0.00% ,whitewater: 0.51% ,water: 50.03% INFO - L8 2025-12-15-22-14-52: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 205 INFO - Number of shoreline points after removing points within 300m of cloud mask 205 INFO - Number of shoreline points before removing points within 30m of no data pixel 205 INFO - Number of shoreline points after removing points within 30m of no data pixel 205 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-12-07-22-14-32 cloud cover : 0.00% INFO - L9 2025-12-07-22-14-32: sand: 0.00% ,whitewater: 0.14% ,water: 48.68% INFO - L9 2025-12-07-22-14-32: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 212 INFO - Number of shoreline points after removing points within 300m of cloud mask 212 INFO - Number of shoreline points before removing points within 30m of no data pixel 212 INFO - Number of shoreline points after removing points within 30m of no data pixel 212 INFO - L9 2025-12-07-22-14-56 cloud cover : 0.00% INFO - L9 2025-12-07-22-14-56: sand: 0.00% ,whitewater: 0.12% ,water: 48.68% INFO - L9 2025-12-07-22-14-56: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 212 INFO - Number of shoreline points after removing points within 300m of cloud mask 212 INFO - Number of shoreline points before removing points within 30m of no data pixel 212 INFO - Number of shoreline points after removing points within 30m of no data pixel 212 INFO - L9 2025-12-14-22-20-44 cloud cover : 1.46% INFO - L9 2025-12-14-22-20-44: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L9 2025-12-14-22-20-44: 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 230 INFO - Number of shoreline points after removing points within 300m of cloud mask 224 INFO - Number of shoreline points before removing points within 30m of no data pixel 224 INFO - Number of shoreline points after removing points within 30m of no data pixel 223 INFO - L9 2025-12-23-22-14-37 cloud cover : 0.00% INFO - L9 2025-12-23-22-14-37: sand: 0.00% ,whitewater: 1.17% ,water: 49.36% INFO - L9 2025-12-23-22-14-37: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 213 INFO - Number of shoreline points after removing points within 300m of cloud mask 213 INFO - Number of shoreline points before removing points within 30m of no data pixel 213 INFO - Number of shoreline points after removing points within 30m of no data pixel 213 INFO - L9 2025-12-23-22-15-01 cloud cover : 0.00% INFO - L9 2025-12-23-22-15-01: sand: 0.00% ,whitewater: 1.20% ,water: 49.24% INFO - L9 2025-12-23-22-15-01: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 213 INFO - Number of shoreline points after removing points within 300m of cloud mask 213 INFO - Number of shoreline points before removing points within 30m of no data pixel 213 INFO - Number of shoreline points after removing points within 30m of no data pixel 213