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: 20 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 261 INFO - Number of shoreline points after removing points within 300m of cloud mask 261 INFO - Number of shoreline points before removing points within 30m of no data pixel 261 INFO - Number of shoreline points after removing points within 30m of no data pixel 261 INFO - L8 2025-12-15-22-14-28 cloud cover : 0.00% INFO - L8 2025-12-15-22-14-28: sand: 0.00% ,whitewater: 0.04% ,water: 43.85% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 92 INFO - Number of shoreline points after removing points within 300m of cloud mask 92 INFO - Number of shoreline points before removing points within 30m of no data pixel 92 INFO - Number of shoreline points after removing points within 30m of no data pixel 92 INFO - L8 2025-12-15-22-14-52 cloud cover : 0.00% INFO - L8 2025-12-15-22-14-52: sand: 0.00% ,whitewater: 0.04% ,water: 43.71% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 92 INFO - Number of shoreline points after removing points within 300m of cloud mask 92 INFO - Number of shoreline points before removing points within 30m of no data pixel 92 INFO - Number of shoreline points after removing points within 30m of no data pixel 92 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: 0.53% ,water: 41.75% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 89 INFO - Number of shoreline points after removing points within 300m of cloud mask 89 INFO - Number of shoreline points before removing points within 30m of no data pixel 89 INFO - Number of shoreline points after removing points within 30m of no data pixel 89 INFO - L9 2025-12-07-22-14-56 cloud cover : 0.00% INFO - L9 2025-12-07-22-14-56: sand: 0.00% ,whitewater: 0.53% ,water: 41.85% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 89 INFO - Number of shoreline points after removing points within 300m of cloud mask 89 INFO - Number of shoreline points before removing points within 30m of no data pixel 89 INFO - Number of shoreline points after removing points within 30m of no data pixel 89 INFO - L9 2025-12-14-22-20-44 cloud cover : 0.00% 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: 36 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 111 INFO - Number of shoreline points after removing points within 300m of cloud mask 111 INFO - Number of shoreline points before removing points within 30m of no data pixel 111 INFO - Number of shoreline points after removing points within 30m of no data pixel 111 INFO - L9 2025-12-23-22-14-37 cloud cover : 0.00% INFO - L9 2025-12-23-22-14-37: sand: 0.00% ,whitewater: 4.17% ,water: 39.71% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 90 INFO - Number of shoreline points after removing points within 300m of cloud mask 90 INFO - Number of shoreline points before removing points within 30m of no data pixel 90 INFO - Number of shoreline points after removing points within 30m of no data pixel 90 INFO - L9 2025-12-23-22-15-01 cloud cover : 0.00% INFO - L9 2025-12-23-22-15-01: sand: 0.00% ,whitewater: 4.14% ,water: 39.71% 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 90 INFO - Number of shoreline points after removing points within 300m of cloud mask 90 INFO - Number of shoreline points before removing points within 30m of no data pixel 90 INFO - Number of shoreline points after removing points within 30m of no data pixel 90