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 2025-10-07-09-59-48 cloud cover : 0.00% INFO - L8 2025-10-07-09-59-48: sand: 1.56% ,whitewater: 0.00% ,water: 43.85% INFO - L8 2025-10-07-09-59-48: 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 - L8 2025-10-07-10-00-12 cloud cover : 0.00% INFO - L8 2025-10-07-10-00-12: sand: 1.51% ,whitewater: 0.00% ,water: 43.85% INFO - L8 2025-10-07-10-00-12: 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 91 INFO - Number of shoreline points after removing points within 300m of cloud mask 91 INFO - Number of shoreline points before removing points within 30m of no data pixel 91 INFO - Number of shoreline points after removing points within 30m of no data pixel 91 INFO - L8 2025-10-23-10-00-10 cloud cover : 0.00% INFO - L8 2025-10-23-10-00-10: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L8 2025-10-23-10-00-10: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 13 shorelines. Number of shorelines after filtering shorelines: 3 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 197 INFO - Number of shoreline points after removing points within 300m of cloud mask 197 INFO - Number of shoreline points before removing points within 30m of no data pixel 197 INFO - Number of shoreline points after removing points within 30m of no data pixel 195 INFO - L8 2025-11-08-09-59-50 cloud cover : 0.00% INFO - L8 2025-11-08-09-59-50: sand: 0.00% ,whitewater: 0.00% ,water: 61.95% INFO - L8 2025-11-08-09-59-50: 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 94 INFO - Number of shoreline points after removing points within 300m of cloud mask 94 INFO - Number of shoreline points before removing points within 30m of no data pixel 94 INFO - Number of shoreline points after removing points within 30m of no data pixel 94 INFO - L8 2025-11-08-10-00-14 cloud cover : 0.00% INFO - L8 2025-11-08-10-00-14: sand: 0.00% ,whitewater: 0.00% ,water: 62.10% INFO - L8 2025-11-08-10-00-14: 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 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 2025-10-31-09-59-50 cloud cover : 0.00% INFO - L9 2025-10-31-09-59-50: sand: 0.00% ,whitewater: 0.00% ,water: 33.22% INFO - L9 2025-10-31-09-59-50: 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 - L9 2025-10-31-10-00-14 cloud cover : 0.00% INFO - L9 2025-10-31-10-00-14: sand: 0.00% ,whitewater: 0.00% ,water: 34.58% INFO - L9 2025-10-31-10-00-14: 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 93 INFO - Number of shoreline points after removing points within 300m of cloud mask 93 INFO - Number of shoreline points before removing points within 30m of no data pixel 93 INFO - Number of shoreline points after removing points within 30m of no data pixel 93 INFO - L9 2025-11-07-10-06-06 cloud cover : 0.00% INFO - L9 2025-11-07-10-06-06: sand: 0.25% ,whitewater: 0.00% ,water: 44.91% INFO - L9 2025-11-07-10-06-06: 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 2025-11-16-10-00-18 cloud cover : 0.00% INFO - L9 2025-11-16-10-00-18: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L9 2025-11-16-10-00-18: 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 96 INFO - Number of shoreline points before removing points within 30m of no data pixel 96 INFO - Number of shoreline points after removing points within 30m of no data pixel 94 WARNING - L9 2025-11-23-10-06-03: Skipped due to cloud cover 45.52% > threshold 10.00%