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 2025-08-25-22-11-51 cloud cover : 0.00% INFO - L8 2025-08-25-22-11-51: sand: 0.00% ,whitewater: 10.41% ,water: 38.60% INFO - L8 2025-08-25-22-11-51: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 6 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 117 INFO - Number of shoreline points after removing points within 300m of cloud mask 117 INFO - Number of shoreline points before removing points within 30m of no data pixel 117 INFO - Number of shoreline points after removing points within 30m of no data pixel 112 INFO - L8 2025-08-25-22-12-15 cloud cover : 0.00% INFO - L8 2025-08-25-22-12-15: sand: 0.00% ,whitewater: 11.88% ,water: 34.93% INFO - L8 2025-08-25-22-12-15: 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 112 INFO - Number of shoreline points after removing points within 300m of cloud mask 112 INFO - Number of shoreline points before removing points within 30m of no data pixel 112 INFO - Number of shoreline points after removing points within 30m of no data pixel 112 INFO - L8 2025-09-03-22-06-09 cloud cover : 0.00% INFO - L8 2025-09-03-22-06-09: sand: 0.00% ,whitewater: 17.35% ,water: 29.79% INFO - L8 2025-09-03-22-06-09: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 10 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 119 INFO - Number of shoreline points after removing points within 300m of cloud mask 119 INFO - Number of shoreline points before removing points within 30m of no data pixel 119 INFO - Number of shoreline points after removing points within 30m of no data pixel 118 INFO - L8 2025-09-10-22-11-56 cloud cover : 0.00% INFO - L8 2025-09-10-22-11-56: sand: 0.00% ,whitewater: 34.62% ,water: 8.38% INFO - L8 2025-09-10-22-11-56: 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 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 2025-09-10-22-12-20 cloud cover : 0.00% INFO - L8 2025-09-10-22-12-20: sand: 0.00% ,whitewater: 35.42% ,water: 8.39% INFO - L8 2025-09-10-22-12-20: 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 115 INFO - Number of shoreline points after removing points within 300m of cloud mask 115 INFO - Number of shoreline points before removing points within 30m of no data pixel 115 INFO - Number of shoreline points after removing points within 30m of no data pixel 115 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-09-18-22-12-01 cloud cover : 0.00% INFO - L9 2025-09-18-22-12-01: sand: 0.00% ,whitewater: 26.55% ,water: 17.54% INFO - L9 2025-09-18-22-12-01: 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 113 INFO - Number of shoreline points after removing points within 300m of cloud mask 113 INFO - Number of shoreline points before removing points within 30m of no data pixel 113 INFO - Number of shoreline points after removing points within 30m of no data pixel 109 INFO - L9 2025-09-18-22-12-25 cloud cover : 0.00% INFO - L9 2025-09-18-22-12-25: sand: 0.00% ,whitewater: 25.87% ,water: 18.94% INFO - L9 2025-09-18-22-12-25: 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 115 INFO - Number of shoreline points after removing points within 300m of cloud mask 115 INFO - Number of shoreline points before removing points within 30m of no data pixel 115 INFO - Number of shoreline points after removing points within 30m of no data pixel 115 WARNING - L9 2025-09-27-22-06-18: Skipped due to cloud cover 19.97% > threshold 10.00%