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 2025-07-24-22-12-53: Skipped due to cloud cover 10.10% > threshold 10.00% INFO - L8 2025-07-24-22-13-17 cloud cover : 0.00% INFO - L8 2025-07-24-22-13-17: sand: 0.00% ,whitewater: 0.04% ,water: 81.89% INFO - L8 2025-07-24-22-13-17: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 8 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 131 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 2025-07-31-22-19-05 cloud cover : 0.00% INFO - L8 2025-07-31-22-19-05: sand: 0.00% ,whitewater: 9.54% ,water: 66.07% INFO - L8 2025-07-31-22-19-05: 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 146 INFO - Number of shoreline points after removing points within 300m of cloud mask 146 INFO - Number of shoreline points before removing points within 30m of no data pixel 146 INFO - Number of shoreline points after removing points within 30m of no data pixel 146 INFO - L8 2025-07-31-22-19-29 cloud cover : 0.00% INFO - L8 2025-07-31-22-19-29: sand: 0.30% ,whitewater: 12.07% ,water: 39.47% INFO - L8 2025-07-31-22-19-29: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 9 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 132 INFO - Number of shoreline points after removing points within 300m of cloud mask 132 INFO - Number of shoreline points before removing points within 30m of no data pixel 132 INFO - Number of shoreline points after removing points within 30m of no data pixel 129 INFO - L8 2025-08-09-22-13-01 cloud cover : 0.00% INFO - L8 2025-08-09-22-13-01: sand: 0.44% ,whitewater: 29.39% ,water: 47.08% INFO - L8 2025-08-09-22-13-01: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 11 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 173 INFO - Number of shoreline points after removing points within 300m of cloud mask 173 INFO - Number of shoreline points before removing points within 30m of no data pixel 173 INFO - Number of shoreline points after removing points within 30m of no data pixel 173 INFO - L8 2025-08-09-22-13-25 cloud cover : 0.00% INFO - L8 2025-08-09-22-13-25: sand: 0.48% ,whitewater: 29.75% ,water: 46.67% INFO - L8 2025-08-09-22-13-25: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 11 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 173 INFO - Number of shoreline points after removing points within 300m of cloud mask 173 INFO - Number of shoreline points before removing points within 30m of no data pixel 173 INFO - Number of shoreline points after removing points within 30m of no data pixel 173 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-08-01-22-12-54 cloud cover : 0.00% INFO - L9 2025-08-01-22-12-54: sand: 0.00% ,whitewater: 30.35% ,water: 47.16% INFO - L9 2025-08-01-22-12-54: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 16 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 137 INFO - Number of shoreline points after removing points within 300m of cloud mask 137 INFO - Number of shoreline points before removing points within 30m of no data pixel 137 INFO - Number of shoreline points after removing points within 30m of no data pixel 137 INFO - L9 2025-08-01-22-13-18 cloud cover : 0.00% INFO - L9 2025-08-01-22-13-18: sand: 0.00% ,whitewater: 31.15% ,water: 46.25% INFO - L9 2025-08-01-22-13-18: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 14 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 139 INFO - Number of shoreline points after removing points within 300m of cloud mask 139 INFO - Number of shoreline points before removing points within 30m of no data pixel 139 INFO - Number of shoreline points after removing points within 30m of no data pixel 139 INFO - L9 2025-08-08-22-19-12 cloud cover : 0.00% INFO - L9 2025-08-08-22-19-12: sand: 0.86% ,whitewater: 44.77% ,water: 30.01% INFO - L9 2025-08-08-22-19-12: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 13 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 183 INFO - Number of shoreline points after removing points within 300m of cloud mask 183 INFO - Number of shoreline points before removing points within 30m of no data pixel 183 INFO - Number of shoreline points after removing points within 30m of no data pixel 183 INFO - L9 2025-08-08-22-19-36 cloud cover : 0.00% INFO - L9 2025-08-08-22-19-36: sand: 0.99% ,whitewater: 32.81% ,water: 4.11% INFO - L9 2025-08-08-22-19-36: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 8 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 53 INFO - Number of shoreline points after removing points within 300m of cloud mask 53 INFO - Number of shoreline points before removing points within 30m of no data pixel 53 INFO - Number of shoreline points after removing points within 30m of no data pixel 51 INFO - L9 2025-08-24-22-19-18 cloud cover : 0.00% INFO - L9 2025-08-24-22-19-18: sand: 1.72% ,whitewater: 7.77% ,water: 61.56% INFO - L9 2025-08-24-22-19-18: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 12 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 209 INFO - Number of shoreline points after removing points within 300m of cloud mask 209 INFO - Number of shoreline points before removing points within 30m of no data pixel 209 INFO - Number of shoreline points after removing points within 30m of no data pixel 209 INFO - L9 2025-08-24-22-19-42 cloud cover : 0.00% INFO - L9 2025-08-24-22-19-42: sand: 1.25% ,whitewater: 2.70% ,water: 36.25% INFO - L9 2025-08-24-22-19-42: 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 62 INFO - Number of shoreline points after removing points within 300m of cloud mask 62 INFO - Number of shoreline points before removing points within 30m of no data pixel 62 INFO - Number of shoreline points after removing points within 30m of no data pixel 61