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 2025-10-05-22-07-28 cloud cover : 0.00% INFO - L8 2025-10-05-22-07-28: sand: 0.26% ,whitewater: 0.00% ,water: 62.03% INFO - L8 2025-10-05-22-07-28: 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 260 INFO - Number of shoreline points after removing points within 300m of cloud mask 260 INFO - Number of shoreline points before removing points within 30m of no data pixel 260 INFO - Number of shoreline points after removing points within 30m of no data pixel 257 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: 61.57% 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: 2 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 260 INFO - Number of shoreline points after removing points within 300m of cloud mask 260 INFO - Number of shoreline points before removing points within 30m of no data pixel 260 INFO - Number of shoreline points after removing points within 30m of no data pixel 258 INFO - L8 2025-10-28-22-13-17 cloud cover : 7.46% INFO - L8 2025-10-28-22-13-17: sand: 0.16% ,whitewater: 0.00% ,water: 39.38% 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: 5 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 199 INFO - Number of shoreline points after removing points within 300m of cloud mask 131 INFO - Number of shoreline points before removing points within 30m of no data pixel 131 INFO - Number of shoreline points after removing points within 30m of no data pixel 131 INFO - L8 2025-10-28-22-13-41 cloud cover : 6.17% INFO - L8 2025-10-28-22-13-41: sand: 0.24% ,whitewater: 0.00% ,water: 40.05% 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: 4 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 263 INFO - Number of shoreline points after removing points within 300m of cloud mask 133 INFO - Number of shoreline points before removing points within 30m of no data pixel 133 INFO - Number of shoreline points after removing points within 30m of no data pixel 131 INFO - L8 2025-11-06-22-07-31 cloud cover : 0.00% INFO - L8 2025-11-06-22-07-31: sand: 0.23% ,whitewater: 0.00% ,water: 61.96% 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: 2 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 260 INFO - Number of shoreline points after removing points within 300m of cloud mask 260 INFO - Number of shoreline points before removing points within 30m of no data pixel 260 INFO - Number of shoreline points after removing points within 30m of no data pixel 258 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 WARNING - L9 2025-10-13-22-07-36: Skipped due to cloud cover 21.39% > threshold 10.00% WARNING - L9 2025-10-29-22-07-29: Skipped due to cloud cover 11.45% > threshold 10.00% INFO - L9 2025-11-05-22-13-22 cloud cover : 0.00% INFO - L9 2025-11-05-22-13-22: sand: 0.17% ,whitewater: 0.00% ,water: 62.12% 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: 3 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 260 INFO - Number of shoreline points after removing points within 300m of cloud mask 260 INFO - Number of shoreline points before removing points within 30m of no data pixel 260 INFO - Number of shoreline points after removing points within 30m of no data pixel 258 INFO - L9 2025-11-05-22-13-46 cloud cover : 0.00% INFO - L9 2025-11-05-22-13-46: sand: 0.17% ,whitewater: 0.00% ,water: 62.10% 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: 3 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 260 INFO - Number of shoreline points after removing points within 300m of cloud mask 260 INFO - Number of shoreline points before removing points within 30m of no data pixel 260 INFO - Number of shoreline points after removing points within 30m of no data pixel 258 WARNING - L9 2025-11-14-22-07-36: Skipped due to cloud cover 20.73% > threshold 10.00% INFO - L9 2025-11-21-22-13-19 cloud cover : 0.00% INFO - L9 2025-11-21-22-13-19: sand: 0.00% ,whitewater: 0.00% ,water: 60.85% 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: 2 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 216 INFO - Number of shoreline points after removing points within 300m of cloud mask 216 INFO - Number of shoreline points before removing points within 30m of no data pixel 216 INFO - Number of shoreline points after removing points within 30m of no data pixel 214 INFO - L9 2025-11-21-22-13-43 cloud cover : 0.00% INFO - L9 2025-11-21-22-13-43: sand: 0.00% ,whitewater: 0.00% ,water: 60.82% 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: 2 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 216 INFO - Number of shoreline points after removing points within 300m of cloud mask 216 INFO - Number of shoreline points before removing points within 30m of no data pixel 216 INFO - Number of shoreline points after removing points within 30m of no data pixel 213