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 ERROR - Skipping L8 2024-06-19-22-13-25 due to cloud cover percentage exceeding cloud threshold: 71.01% > 10.00%. ERROR - Skipping L8 2024-06-19-22-13-49 due to cloud cover percentage exceeding cloud threshold: 92.88% > 10.00%. ERROR - Skipping L8 2024-07-05-22-13-33 due to cloud cover percentage exceeding cloud threshold: 36.33% > 10.00%. ERROR - Skipping L8 2024-07-05-22-13-57 due to cloud cover percentage exceeding cloud threshold: 29.86% > 10.00%. INFO - Processing image L8 2024-07-12-22-19-48 INFO - L8 2024-07-12-22-19-48 cloud cover : 0.00% INFO - L8 2024-07-12-22-19-48: sand: 0.00% ,whitewater: 0.00% ,water: 0.55% INFO - L8 2024-07-12-22-19-48: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 ERROR - L8 2024-07-12-22-19-48: Could not map shoreline due to error no valid pixels found in reference shoreline buffer. Traceback (most recent call last): File "/home/ubuntu/.local/lib/python3.10/site-packages/coastsat/SDS_shoreline.py", line 626, in extract_shorelines contours_mwi, t_mndwi = find_wl_contours1( File "/home/ubuntu/.local/lib/python3.10/site-packages/coastsat/SDS_shoreline.py", line 921, in find_wl_contours1 raise ValueError("no valid pixels found in reference shoreline buffer.") ValueError: no valid pixels found in reference shoreline buffer. INFO - Processing image L8 2024-08-13-22-20-02 INFO - L8 2024-08-13-22-20-02 cloud cover : 0.00% INFO - L8 2024-08-13-22-20-02: sand: 0.00% ,whitewater: 0.21% ,water: 0.64% INFO - L8 2024-08-13-22-20-02: 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 57 INFO - Number of shoreline points after removing points within 300m of cloud mask 57 INFO - Number of shoreline points before removing points within 30m of no data pixel 57 INFO - Number of shoreline points after removing points within 30m of no data pixel 53 INFO - Processing image L8 2024-08-29-22-20-09 INFO - L8 2024-08-29-22-20-09 cloud cover : 0.00% INFO - L8 2024-08-29-22-20-09: sand: 0.00% ,whitewater: 0.00% ,water: 0.14% INFO - L8 2024-08-29-22-20-09: 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: 0 shorelines INFO - Processing image L8 2024-09-07-22-14-06 INFO - L8 2024-09-07-22-14-06 cloud cover : 0.00% INFO - L8 2024-09-07-22-14-06: sand: 0.06% ,whitewater: 1.19% ,water: 49.14% INFO - L8 2024-09-07-22-14-06: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 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 526 INFO - Number of shoreline points after removing points within 300m of cloud mask 526 INFO - Number of shoreline points before removing points within 30m of no data pixel 526 INFO - Number of shoreline points after removing points within 30m of no data pixel 525 INFO - Processing image L8 2024-09-07-22-14-30 INFO - L8 2024-09-07-22-14-30 cloud cover : 0.00% INFO - L8 2024-09-07-22-14-30: sand: 0.04% ,whitewater: 0.51% ,water: 51.21% INFO - L8 2024-09-07-22-14-30: 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 234 INFO - Number of shoreline points after removing points within 300m of cloud mask 234 INFO - Number of shoreline points before removing points within 30m of no data pixel 234 INFO - Number of shoreline points after removing points within 30m of no data pixel 232 INFO - Processing image L8 2024-09-23-22-14-06 INFO - L8 2024-09-23-22-14-06 cloud cover : 0.00% INFO - L8 2024-09-23-22-14-06: sand: 0.01% ,whitewater: 0.61% ,water: 49.85% INFO - L8 2024-09-23-22-14-06: 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 528 INFO - Number of shoreline points after removing points within 300m of cloud mask 528 INFO - Number of shoreline points before removing points within 30m of no data pixel 528 INFO - Number of shoreline points after removing points within 30m of no data pixel 526 INFO - Processing image L8 2024-09-23-22-14-30 INFO - L8 2024-09-23-22-14-30 cloud cover : 0.00% INFO - L8 2024-09-23-22-14-30: sand: 0.01% ,whitewater: 0.52% ,water: 51.26% INFO - L8 2024-09-23-22-14-30: 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 290 INFO - Number of shoreline points after removing points within 300m of cloud mask 290 INFO - Number of shoreline points before removing points within 30m of no data pixel 290 INFO - Number of shoreline points after removing points within 30m of no data pixel 286 ERROR - Skipping L8 2024-09-30-22-20-12 due to cloud cover percentage exceeding cloud threshold: 27.69% > 10.00%. INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 ERROR - Skipping L9 2024-06-11-22-13-30 due to cloud cover percentage exceeding cloud threshold: 90.62% > 10.00%. ERROR - Skipping L9 2024-06-18-22-19-31 due to cloud cover percentage exceeding cloud threshold: 57.27% > 10.00%. ERROR - Skipping L9 2024-07-13-22-13-38 due to cloud cover percentage exceeding cloud threshold: 15.03% > 10.00%. ERROR - Skipping L9 2024-07-13-22-14-02 due to cloud cover percentage exceeding cloud threshold: 21.83% > 10.00%. INFO - Processing image L9 2024-08-30-22-13-59 INFO - L9 2024-08-30-22-13-59 cloud cover : 0.00% INFO - L9 2024-08-30-22-13-59: sand: 0.00% ,whitewater: 0.16% ,water: 50.29% INFO - L9 2024-08-30-22-13-59: 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 526 INFO - Number of shoreline points after removing points within 300m of cloud mask 526 INFO - Number of shoreline points before removing points within 30m of no data pixel 526 INFO - Number of shoreline points after removing points within 30m of no data pixel 525 INFO - Processing image L9 2024-08-30-22-14-23 INFO - L9 2024-08-30-22-14-23 cloud cover : 0.00% INFO - L9 2024-08-30-22-14-23: sand: 0.04% ,whitewater: 0.21% ,water: 50.43% INFO - L9 2024-08-30-22-14-23: 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 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 194 INFO - Processing image L9 2024-09-06-22-20-06 INFO - L9 2024-09-06-22-20-06 cloud cover : 0.00% INFO - L9 2024-09-06-22-20-06: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% INFO - L9 2024-09-06-22-20-06: 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: 0 shorelines INFO - Processing image L9 2024-09-15-22-14-02 INFO - L9 2024-09-15-22-14-02 cloud cover : 6.34% INFO - L9 2024-09-15-22-14-02: sand: 0.00% ,whitewater: 0.51% ,water: 48.79% INFO - L9 2024-09-15-22-14-02: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 INFO - Number of shorelines before removing shorelines < 500m: 11 shorelines. Number of shorelines after filtering shorelines: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 342 INFO - Number of shoreline points after removing points within 300m of cloud mask 262 INFO - Number of shoreline points before removing points within 30m of no data pixel 262 INFO - Number of shoreline points after removing points within 30m of no data pixel 262 ERROR - Skipping L9 2024-09-15-22-14-26 due to cloud cover percentage exceeding cloud threshold: 12.55% > 10.00%. INFO - Processing image L9 2024-09-22-22-20-08 INFO - L9 2024-09-22-22-20-08 cloud cover : 0.00% INFO - L9 2024-09-22-22-20-08: sand: 0.00% ,whitewater: 0.41% ,water: 13.05% INFO - L9 2024-09-22-22-20-08: 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 267 INFO - Number of shoreline points after removing points within 300m of cloud mask 267 INFO - Number of shoreline points before removing points within 30m of no data pixel 267 INFO - Number of shoreline points after removing points within 30m of no data pixel 264 ERROR - Skipping L9 2024-10-08-22-20-15 due to cloud cover percentage exceeding cloud threshold: 13.96% > 10.00%.