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 2025-08-20-10-00-00: Skipped due to cloud cover 53.51% > threshold 10.00% INFO - L8 2025-08-27-10-05-47 cloud cover : 0.00% INFO - L8 2025-08-27-10-05-47: sand: 0.00% ,whitewater: 0.00% ,water: 54.00% INFO - L8 2025-08-27-10-05-47: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 107 INFO - Number of shoreline points after removing points within 300m of cloud mask 107 INFO - Number of shoreline points before removing points within 30m of no data pixel 107 INFO - Number of shoreline points after removing points within 30m of no data pixel 106 INFO - L8 2025-08-27-10-06-10 cloud cover : 1.57% INFO - L8 2025-08-27-10-06-10: sand: 0.00% ,whitewater: 0.00% ,water: 53.11% INFO - L8 2025-08-27-10-06-10: 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 96 INFO - Number of shoreline points after removing points within 300m of cloud mask 66 INFO - Number of shoreline points before removing points within 30m of no data pixel 66 INFO - Number of shoreline points after removing points within 30m of no data pixel 65 INFO - L8 2025-09-05-10-00-04 cloud cover : 0.00% INFO - L8 2025-09-05-10-00-04: sand: 0.28% ,whitewater: 0.00% ,water: 55.33% INFO - L8 2025-09-05-10-00-04: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 103 INFO - Number of shoreline points after removing points within 300m of cloud mask 103 INFO - Number of shoreline points before removing points within 30m of no data pixel 103 INFO - Number of shoreline points after removing points within 30m of no data pixel 102 INFO - L8 2025-09-12-10-05-53 cloud cover : 0.00% INFO - L8 2025-09-12-10-05-53: sand: 0.28% ,whitewater: 0.00% ,water: 55.23% INFO - L8 2025-09-12-10-05-53: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 103 INFO - Number of shoreline points after removing points within 300m of cloud mask 103 INFO - Number of shoreline points before removing points within 30m of no data pixel 103 INFO - Number of shoreline points after removing points within 30m of no data pixel 102 INFO - L8 2025-09-12-10-06-16 cloud cover : 0.00% INFO - L8 2025-09-12-10-06-16: sand: 0.25% ,whitewater: 0.00% ,water: 55.36% INFO - L8 2025-09-12-10-06-16: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 103 INFO - Number of shoreline points after removing points within 300m of cloud mask 103 INFO - Number of shoreline points before removing points within 30m of no data pixel 103 INFO - Number of shoreline points after removing points within 30m of no data pixel 102 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 WARNING - L9 2025-08-28-10-00-04: Skipped due to cloud cover 45.18% > threshold 10.00% INFO - L9 2025-09-04-10-05-55 cloud cover : 2.63% INFO - L9 2025-09-04-10-05-55: sand: 0.18% ,whitewater: 0.00% ,water: 55.08% INFO - L9 2025-09-04-10-05-55: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 103 INFO - Number of shoreline points after removing points within 300m of cloud mask 103 INFO - Number of shoreline points before removing points within 30m of no data pixel 103 INFO - Number of shoreline points after removing points within 30m of no data pixel 102 INFO - L9 2025-09-04-10-06-19 cloud cover : 8.40% INFO - L9 2025-09-04-10-06-19: sand: 0.00% ,whitewater: 0.00% ,water: 55.14% INFO - L9 2025-09-04-10-06-19: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 103 INFO - Number of shoreline points after removing points within 300m of cloud mask 52 INFO - Number of shoreline points before removing points within 30m of no data pixel 52 INFO - Number of shoreline points after removing points within 30m of no data pixel 52 INFO - L9 2025-09-13-10-00-10 cloud cover : 0.00% INFO - L9 2025-09-13-10-00-10: sand: 0.22% ,whitewater: 0.00% ,water: 55.45% INFO - L9 2025-09-13-10-00-10: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 102 INFO - Number of shoreline points after removing points within 300m of cloud mask 102 INFO - Number of shoreline points before removing points within 30m of no data pixel 102 INFO - Number of shoreline points after removing points within 30m of no data pixel 101 INFO - L9 2025-09-20-10-05-58 cloud cover : 6.08% INFO - L9 2025-09-20-10-05-58: sand: 0.00% ,whitewater: 0.00% ,water: 51.82% INFO - L9 2025-09-20-10-05-58: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 78 INFO - Number of shoreline points after removing points within 300m of cloud mask 50 INFO - Number of shoreline points before removing points within 30m of no data pixel 50 INFO - Number of shoreline points after removing points within 30m of no data pixel 49 INFO - L9 2025-09-20-10-06-22 cloud cover : 4.95% INFO - L9 2025-09-20-10-06-22: sand: 0.00% ,whitewater: 0.00% ,water: 52.12% INFO - L9 2025-09-20-10-06-22: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 84 INFO - Number of shoreline points after removing points within 300m of cloud mask 54 INFO - Number of shoreline points before removing points within 30m of no data pixel 54 INFO - Number of shoreline points after removing points within 30m of no data pixel 53