2024-08-15 12:51:12,288 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC08/C02/T1_TOA/LC08_074085_20240721 that failed.
Failed to open the image file data/nzd0110/L8/ms/2024-07-21-22-11-24_L8_nzd0110_ms.tif
2024-08-15 12:51:12,308 - satellite_download_logger - INFO - Please read the following information carefully:

2024-08-15 12:51:12,308 - 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.

2024-08-15 12:51:12,308 - 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.

2024-08-15 12:51:12,308 - satellite_download_logger - INFO - ---------------------------------------------------------------------------------------------------------------------
2024-08-15 12:51:12,310 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500


2024-08-15 12:51:12,313 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200


2024-08-15 12:51:12,314 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200


2024-08-15 12:51:12,315 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500


2024-08-15 12:51:12,320 - satellite_download_logger - INFO - 
Processing image L8 2024-07-30-22-05-15
2024-08-15 12:51:12,320 - satellite_download_logger - INFO - L8 2024-07-30-22-05-15 cloud cover : 0.00%
2024-08-15 12:51:12,349 - satellite_download_logger - INFO - L8 2024-07-30-22-05-15: sand: 0.00% ,whitewater: 0.00% ,water: 0.00%
2024-08-15 12:51:12,349 - satellite_download_logger - INFO - L8 2024-07-30-22-05-15: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2024-08-15 12:51:12,353 - satellite_download_logger - ERROR - L8 2024-07-30-22-05-15: 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.