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 - Processing image L8 2024-12-14-22-00-39 INFO - L8 2024-12-14-22-00-39 cloud cover : 0.00% INFO - L8 2024-12-14-22-00-39: sand: 0.01% ,whitewater: 0.08% ,water: 49.53% INFO - L8 2024-12-14-22-00-39: 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 476 INFO - Number of shoreline points after removing points within 300m of cloud mask 476 INFO - Number of shoreline points before removing points within 30m of no data pixel 476 INFO - Number of shoreline points after removing points within 30m of no data pixel 476 INFO - Processing image L8 2024-12-14-22-01-03 INFO - L8 2024-12-14-22-01-03 cloud cover : 0.00% INFO - L8 2024-12-14-22-01-03: sand: 0.00% ,whitewater: 0.00% ,water: 33.77% INFO - L8 2024-12-14-22-01-03: 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 53 INFO - Number of shoreline points after removing points within 300m of cloud mask 53 INFO - Number of shoreline points before removing points within 30m of no data pixel 53 INFO - Number of shoreline points after removing points within 30m of no data pixel 51 ERROR - Skipping L8 2024-12-23-21-54-31 due to cloud cover percentage exceeding cloud threshold: 14.67% > 10.00%. ERROR - Skipping L8 2024-12-23-21-54-55 due to cloud cover percentage exceeding cloud threshold: 14.86% > 10.00%. ERROR - Skipping L8 2025-01-15-22-00-44 due to cloud cover percentage exceeding cloud threshold: 91.98% > 10.00%. ERROR - Skipping L8 2025-01-15-22-01-08 due to cloud cover percentage exceeding cloud threshold: 44.25% > 10.00%. INFO - Processing image L8 2025-01-24-21-54-27 INFO - L8 2025-01-24-21-54-27 cloud cover : 9.38% INFO - L8 2025-01-24-21-54-27: sand: 0.00% ,whitewater: 0.10% ,water: 45.90% INFO - L8 2025-01-24-21-54-27: 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: 1 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 60 INFO - Number of shoreline points after removing points within 300m of cloud mask 33 INFO - Number of shoreline points before removing points within 30m of no data pixel 33 INFO - Number of shoreline points after removing points within 30m of no data pixel 32 INFO - Processing image L8 2025-01-24-21-54-51 INFO - L8 2025-01-24-21-54-51 cloud cover : 8.40% INFO - L8 2025-01-24-21-54-51: sand: 0.00% ,whitewater: 0.13% ,water: 46.61% INFO - L8 2025-01-24-21-54-51: 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 112 INFO - Number of shoreline points after removing points within 300m of cloud mask 87 INFO - Number of shoreline points before removing points within 30m of no data pixel 87 INFO - Number of shoreline points after removing points within 30m of no data pixel 87 ERROR - Skipping L8 2025-02-25-21-54-19 due to cloud cover percentage exceeding cloud threshold: 86.72% > 10.00%. INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 ERROR - Skipping L9 2024-11-20-22-00-51 due to cloud cover percentage exceeding cloud threshold: 52.29% > 10.00%. INFO - Processing image L9 2024-11-29-21-55-08 INFO - L9 2024-11-29-21-55-08 cloud cover : 2.41% INFO - L9 2024-11-29-21-55-08: sand: 0.00% ,whitewater: 4.13% ,water: 45.57% INFO - L9 2024-11-29-21-55-08: 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 473 INFO - Number of shoreline points after removing points within 300m of cloud mask 473 INFO - Number of shoreline points before removing points within 30m of no data pixel 473 INFO - Number of shoreline points after removing points within 30m of no data pixel 473 INFO - Processing image L9 2024-12-06-22-00-47 INFO - L9 2024-12-06-22-00-47 cloud cover : 4.02% INFO - L9 2024-12-06-22-00-47: sand: 0.01% ,whitewater: 0.57% ,water: 48.12% INFO - L9 2024-12-06-22-00-47: 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: 2 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 211 INFO - Number of shoreline points before removing points within 30m of no data pixel 211 INFO - Number of shoreline points after removing points within 30m of no data pixel 211 INFO - Processing image L9 2024-12-06-22-01-11 INFO - L9 2024-12-06-22-01-11 cloud cover : 0.00% INFO - L9 2024-12-06-22-01-11: sand: 0.00% ,whitewater: 0.00% ,water: 0.92% INFO - L9 2024-12-06-22-01-11: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 ERROR - L9 2024-12-06-22-01-11: 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 686, in extract_shorelines contours_mwi, t_mndwi = find_wl_contours1( File "/home/ubuntu/.local/lib/python3.10/site-packages/coastsat/SDS_shoreline.py", line 981, in find_wl_contours1 raise ValueError("no valid pixels found in reference shoreline buffer.") ValueError: no valid pixels found in reference shoreline buffer. ERROR - Skipping L9 2024-12-22-22-00-50 due to cloud cover percentage exceeding cloud threshold: 17.58% > 10.00%. ERROR - Skipping L9 2025-01-16-21-54-40 due to cloud cover percentage exceeding cloud threshold: 89.50% > 10.00%. ERROR - Skipping L9 2025-01-16-21-55-04 due to cloud cover percentage exceeding cloud threshold: 89.35% > 10.00%. INFO - Processing image L9 2025-02-08-22-00-47 INFO - L9 2025-02-08-22-00-47 cloud cover : 0.00% INFO - L9 2025-02-08-22-00-47: sand: 0.01% ,whitewater: 2.93% ,water: 47.03% INFO - L9 2025-02-08-22-00-47: 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 474 INFO - Number of shoreline points after removing points within 300m of cloud mask 474 INFO - Number of shoreline points before removing points within 30m of no data pixel 474 INFO - Number of shoreline points after removing points within 30m of no data pixel 474 INFO - Processing image L9 2025-02-08-22-01-11 INFO - L9 2025-02-08-22-01-11 cloud cover : 0.00% INFO - L9 2025-02-08-22-01-11: sand: 0.00% ,whitewater: 0.77% ,water: 7.94% INFO - L9 2025-02-08-22-01-11: 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 ERROR - Skipping L9 2025-02-17-21-54-39 due to cloud cover percentage exceeding cloud threshold: 92.87% > 10.00%. INFO - Processing image L9 2025-02-24-22-00-45 INFO - L9 2025-02-24-22-00-45 cloud cover : 1.45% INFO - L9 2025-02-24-22-00-45: sand: 0.00% ,whitewater: 0.24% ,water: 48.84% INFO - L9 2025-02-24-22-00-45: 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: 2 shorelines INFO - Number of shoreline points before removing points within 300m of cloud mask 401 INFO - Number of shoreline points after removing points within 300m of cloud mask 339 INFO - Number of shoreline points before removing points within 30m of no data pixel 339 INFO - Number of shoreline points after removing points within 30m of no data pixel 339 INFO - Processing image L9 2025-02-24-22-01-09 INFO - L9 2025-02-24-22-01-09 cloud cover : 0.00% INFO - L9 2025-02-24-22-01-09: sand: 0.00% ,whitewater: 0.00% ,water: 7.97% INFO - L9 2025-02-24-22-01-09: 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