2025-05-01 00:23:40,386 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC08/C02/T1_TOA/LC08_193031_20250405 that failed.
Failed to open the image file data/sar2240/L8/ms/2025-04-05-10-05-23_L8_sar2240_ms.tif
2025-05-01 00:23:44,646 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250405 that failed.
Failed to open the image file data/sar2240/L8/ms/2025-04-05-10-05-47_L8_sar2240_ms.tif
2025-05-01 00:23:48,817 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250328 that failed.
Failed to open the image file data/sar2240/L9/ms/2025-03-28-10-06-00_L9_sar2240_ms.tif
2025-05-01 00:23:53,067 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC09/C02/T1_TOA/LC09_194031_20250404 that failed.
Failed to open the image file data/sar2240/L9/ms/2025-04-04-10-11-44_L9_sar2240_ms.tif
2025-05-01 00:23:53,126 - satellite_download_logger - INFO - Please read the following information carefully:

2025-05-01 00:23:53,126 - 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.

2025-05-01 00:23:53,126 - 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.

2025-05-01 00:23:53,126 - satellite_download_logger - INFO - ---------------------------------------------------------------------------------------------------------------------
2025-05-01 00:23:53,146 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500


2025-05-01 00:23:53,148 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200


2025-05-01 00:23:53,148 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200


2025-05-01 00:23:53,149 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500


2025-05-01 00:23:53,151 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500


2025-05-01 00:23:53,170 - satellite_download_logger - INFO - 
Processing image L9 2025-03-28-10-05-36
2025-05-01 00:23:53,170 - satellite_download_logger - INFO - L9 2025-03-28-10-05-36 cloud cover : 0.00%
2025-05-01 00:23:53,179 - satellite_download_logger - INFO - L9 2025-03-28-10-05-36: sand: 0.00% ,whitewater: 0.00% ,water: 0.00%
2025-05-01 00:23:53,179 - satellite_download_logger - INFO - L9 2025-03-28-10-05-36: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2025-05-01 00:23:53,180 - satellite_download_logger - ERROR - L9 2025-03-28-10-05-36: 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.