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 2025-08-25-22-14-15 cloud cover : 0.00% INFO - L8 2025-08-25-22-14-15: sand: 0.16% ,whitewater: 0.56% ,water: 48.17% INFO - L8 2025-08-25-22-14-15: 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 359 INFO - Number of shoreline points after removing points within 300m of cloud mask 359 INFO - Number of shoreline points before removing points within 30m of no data pixel 359 INFO - Number of shoreline points after removing points within 30m of no data pixel 357 INFO - L8 2025-08-25-22-14-39 cloud cover : 0.00% INFO - L8 2025-08-25-22-14-39: sand: 0.24% ,whitewater: 0.65% ,water: 48.02% INFO - L8 2025-08-25-22-14-39: 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 363 INFO - Number of shoreline points after removing points within 300m of cloud mask 363 INFO - Number of shoreline points before removing points within 30m of no data pixel 363 INFO - Number of shoreline points after removing points within 30m of no data pixel 361 INFO - L8 2025-09-01-22-20-29 cloud cover : 0.00% INFO - L8 2025-09-01-22-20-29: sand: 0.00% ,whitewater: 0.00% ,water: 1.72% INFO - L8 2025-09-01-22-20-29: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 20 shorelines. Number of shorelines after filtering shorelines: 3 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 340 INFO - Number of shoreline points after removing points within 300m of cloud mask 340 INFO - Number of shoreline points before removing points within 30m of no data pixel 340 INFO - Number of shoreline points after removing points within 30m of no data pixel 340 INFO - L8 2025-09-10-22-14-20 cloud cover : 0.00% INFO - L8 2025-09-10-22-14-20: sand: 0.59% ,whitewater: 0.34% ,water: 48.84% INFO - L8 2025-09-10-22-14-20: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 356 INFO - Number of shoreline points after removing points within 300m of cloud mask 356 INFO - Number of shoreline points before removing points within 30m of no data pixel 356 INFO - Number of shoreline points after removing points within 30m of no data pixel 353 INFO - L8 2025-09-10-22-14-44 cloud cover : 0.00% INFO - L8 2025-09-10-22-14-44: sand: 0.64% ,whitewater: 0.38% ,water: 48.72% INFO - L8 2025-09-10-22-14-44: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 351 INFO - Number of shoreline points after removing points within 300m of cloud mask 351 INFO - Number of shoreline points before removing points within 30m of no data pixel 351 INFO - Number of shoreline points after removing points within 30m of no data pixel 349 INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 INFO - L9 2025-09-02-22-14-23 cloud cover : 0.00% INFO - L9 2025-09-02-22-14-23: sand: 0.60% ,whitewater: 2.57% ,water: 47.27% INFO - L9 2025-09-02-22-14-23: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 324 INFO - Number of shoreline points after removing points within 300m of cloud mask 324 INFO - Number of shoreline points before removing points within 30m of no data pixel 324 INFO - Number of shoreline points after removing points within 30m of no data pixel 321 INFO - L9 2025-09-02-22-14-47 cloud cover : 0.00% INFO - L9 2025-09-02-22-14-47: sand: 0.63% ,whitewater: 2.71% ,water: 47.08% INFO - L9 2025-09-02-22-14-47: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 320 INFO - Number of shoreline points after removing points within 300m of cloud mask 320 INFO - Number of shoreline points before removing points within 30m of no data pixel 320 INFO - Number of shoreline points after removing points within 30m of no data pixel 317 INFO - L9 2025-09-09-22-20-36 cloud cover : 0.00% INFO - L9 2025-09-09-22-20-36: sand: 0.05% ,whitewater: 0.00% ,water: 0.33% INFO - L9 2025-09-09-22-20-36: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 172 INFO - Number of shoreline points after removing points within 300m of cloud mask 172 INFO - Number of shoreline points before removing points within 30m of no data pixel 172 INFO - Number of shoreline points after removing points within 30m of no data pixel 164 INFO - L9 2025-09-18-22-14-25 cloud cover : 0.00% INFO - L9 2025-09-18-22-14-25: sand: 1.13% ,whitewater: 2.00% ,water: 45.69% INFO - L9 2025-09-18-22-14-25: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 250 INFO - Number of shoreline points after removing points within 300m of cloud mask 250 INFO - Number of shoreline points before removing points within 30m of no data pixel 250 INFO - Number of shoreline points after removing points within 30m of no data pixel 248 INFO - L9 2025-09-18-22-14-49 cloud cover : 0.00% INFO - L9 2025-09-18-22-14-49: sand: 1.20% ,whitewater: 2.11% ,water: 45.57% INFO - L9 2025-09-18-22-14-49: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 250 INFO - Number of shoreline points after removing points within 300m of cloud mask 250 INFO - Number of shoreline points before removing points within 30m of no data pixel 250 INFO - Number of shoreline points after removing points within 30m of no data pixel 248 INFO - L9 2025-09-25-22-20-40 cloud cover : 0.00% INFO - L9 2025-09-25-22-20-40: sand: 1.11% ,whitewater: 2.98% ,water: 13.15% INFO - L9 2025-09-25-22-20-40: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 INFO - Number of shorelines before removing shorelines < 500m: 4 shorelines. Number of shorelines after filtering shorelines: 1 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 204