2025-10-01 00:46:39,595 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250827 that failed. Failed to open the image file data/sar0689/L8/ms/2025-08-27-10-06-10_L8_sar0689_ms.tif 2025-10-01 00:46:44,934 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250912 as 2025-09-12-10-06-16_L8_sar0689_ms.tif 2025-10-01 00:46:49,325 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_193033_20250827 that failed. Failed to open the image file data/sar0689/L8/ms/2025-08-27-10-06-34_L8_sar0689_ms.tif 2025-10-01 00:46:53,658 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193033_20250912 as 2025-09-12-10-06-40_L8_sar0689_ms.tif 2025-10-01 00:46:59,036 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250819 that failed. Failed to open the image file data/sar0689/L9/ms/2025-08-19-10-06-14_L9_sar0689_ms.tif 2025-10-01 00:47:02,428 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250904 as 2025-09-04-10-06-19_L9_sar0689_ms.tif 2025-10-01 00:47:09,631 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250920 as 2025-09-20-10-06-22_L9_sar0689_ms.tif 2025-10-01 00:47:12,971 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193033_20250920 as 2025-09-20-10-06-46_L9_sar0689_ms.tif 2025-10-01 00:47:13,016 - satellite_download_logger - INFO - Please read the following information carefully: 2025-10-01 00:47:13,016 - satellite_download_logger - 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. 2025-10-01 00:47:13,016 - satellite_download_logger - 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. 2025-10-01 00:47:13,016 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-10-01 00:47:13,018 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-10-01 00:47:13,019 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-10-01 00:47:13,019 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-10-01 00:47:13,021 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-10-01 00:47:13,024 - satellite_download_logger - INFO - L8 2025-09-12-10-06-16 cloud cover : 0.00% 2025-10-01 00:47:13,048 - satellite_download_logger - INFO - L8 2025-09-12-10-06-16: sand: 0.00% ,whitewater: 0.00% ,water: 57.95% 2025-10-01 00:47:13,048 - satellite_download_logger - INFO - L8 2025-09-12-10-06-16: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:47:13,050 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:13,050 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 92 2025-10-01 00:47:13,050 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 92 2025-10-01 00:47:13,050 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 92 2025-10-01 00:47:13,050 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 92 2025-10-01 00:47:15,793 - satellite_download_logger - INFO - L8 2025-09-12-10-06-40 cloud cover : 0.00% 2025-10-01 00:47:15,828 - satellite_download_logger - INFO - L8 2025-09-12-10-06-40: sand: 0.00% ,whitewater: 0.00% ,water: 60.19% 2025-10-01 00:47:15,828 - satellite_download_logger - INFO - L8 2025-09-12-10-06-40: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:47:15,842 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 2 shorelines. Number of shorelines after filtering shorelines: 0 shorelines 2025-10-01 00:47:16,062 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-10-01 00:47:16,067 - satellite_download_logger - INFO - L9 2025-09-04-10-06-19 cloud cover : 0.00% 2025-10-01 00:47:16,091 - satellite_download_logger - INFO - L9 2025-09-04-10-06-19: sand: 0.00% ,whitewater: 0.00% ,water: 56.46% 2025-10-01 00:47:16,092 - satellite_download_logger - INFO - L9 2025-09-04-10-06-19: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:47:16,093 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:16,093 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 88 2025-10-01 00:47:16,093 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 88 2025-10-01 00:47:16,093 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 88 2025-10-01 00:47:16,093 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 88 2025-10-01 00:47:16,405 - satellite_download_logger - INFO - L9 2025-09-20-10-06-22 cloud cover : 0.00% 2025-10-01 00:47:16,430 - satellite_download_logger - INFO - L9 2025-09-20-10-06-22: sand: 0.00% ,whitewater: 0.00% ,water: 56.59% 2025-10-01 00:47:16,431 - satellite_download_logger - INFO - L9 2025-09-20-10-06-22: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:47:16,432 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:16,432 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 87 2025-10-01 00:47:16,432 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 87 2025-10-01 00:47:16,432 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 87 2025-10-01 00:47:16,432 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 87 2025-10-01 00:47:16,755 - satellite_download_logger - INFO - L9 2025-09-20-10-06-46 cloud cover : 0.00% 2025-10-01 00:47:16,765 - satellite_download_logger - INFO - L9 2025-09-20-10-06-46: sand: 0.00% ,whitewater: 0.00% ,water: 23.33% 2025-10-01 00:47:16,765 - satellite_download_logger - INFO - L9 2025-09-20-10-06-46: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:47:16,767 - satellite_download_logger - ERROR - L9 2025-09-20-10-06-46: 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/python3.12/site-packages/coastsat/SDS_shoreline.py", line 1061, in extract_shorelines shoreline, t_mndwi = find_shoreline_optical( ^^^^^^^^^^^^^^^^^^^^^^^ File "/home/ubuntu/.local/lib/python3.12/site-packages/coastsat/SDS_shoreline.py", line 216, in find_shoreline_optical contours_mwi, t_mndwi = find_wl_contours1(im_mndwi, cloud_mask, im_ref_buffer) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/ubuntu/.local/lib/python3.12/site-packages/coastsat/SDS_shoreline.py", line 1426, in find_wl_contours1 raise ValueError("no valid pixels found in reference shoreline buffer.") ValueError: no valid pixels found in reference shoreline buffer.