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 2025-09-21-09-59-47 cloud cover : 6.50% INFO - L8 2025-09-21-09-59-47: sand: 0.53% ,whitewater: 0.00% ,water: 28.53% INFO - L8 2025-09-21-09-59-47: 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 106 INFO - Number of shoreline points after removing points within 300m of cloud mask 64 INFO - Number of shoreline points before removing points within 30m of no data pixel 64 INFO - Number of shoreline points after removing points within 30m of no data pixel 63 INFO - L8 2025-09-21-10-00-11 cloud cover : 6.50% INFO - L8 2025-09-21-10-00-11: sand: 0.26% ,whitewater: 0.00% ,water: 28.68% INFO - L8 2025-09-21-10-00-11: 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 106 INFO - Number of shoreline points after removing points within 300m of cloud mask 64 INFO - Number of shoreline points before removing points within 30m of no data pixel 64 INFO - Number of shoreline points after removing points within 30m of no data pixel 63 INFO - L8 2025-09-28-10-05-58 cloud cover : 0.00% INFO - L8 2025-09-28-10-05-58: sand: 0.00% ,whitewater: 0.00% ,water: 30.58% INFO - L8 2025-09-28-10-05-58: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 6 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 113 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 WARNING - L9 2025-09-20-10-05-58: Skipped due to cloud cover 13.91% > threshold 10.00% INFO - L9 2025-09-29-09-59-50 cloud cover : 0.00% INFO - L9 2025-09-29-09-59-50: sand: 1.00% ,whitewater: 0.00% ,water: 33.26% INFO - L9 2025-09-29-09-59-50: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 167 INFO - Number of shoreline points after removing points within 300m of cloud mask 167 INFO - Number of shoreline points before removing points within 30m of no data pixel 167 INFO - Number of shoreline points after removing points within 30m of no data pixel 166 INFO - L9 2025-09-29-10-00-14 cloud cover : 0.00% INFO - L9 2025-09-29-10-00-14: sand: 0.89% ,whitewater: 0.00% ,water: 33.00% INFO - L9 2025-09-29-10-00-14: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 165 INFO - Number of shoreline points after removing points within 300m of cloud mask 165 INFO - Number of shoreline points before removing points within 30m of no data pixel 165 INFO - Number of shoreline points after removing points within 30m of no data pixel 164 INFO - L9 2025-10-06-10-06-02 cloud cover : 0.00% INFO - L9 2025-10-06-10-06-02: sand: 0.00% ,whitewater: 0.00% ,water: 33.32% INFO - L9 2025-10-06-10-06-02: 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 157 INFO - Number of shoreline points after removing points within 300m of cloud mask 157 INFO - Number of shoreline points before removing points within 30m of no data pixel 157 INFO - Number of shoreline points after removing points within 30m of no data pixel 155