2025-06-01 00:07:41,483 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC08/C02/T1_TOA/LC08_071087_20250414 that failed.
Failed to open the image file data/nzd0291/L8/ms/2025-04-14-21-53-37_L8_nzd0291_ms.tif
2025-06-01 00:07:45,076 - satellite_download_logger - INFO - Successfully downloaded image id LANDSAT/LC08/C02/T1_TOA/LC08_071087_20250516 as 2025-05-16-21-53-29_L8_nzd0291_ms.tif
2025-06-01 00:07:52,578 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC08/C02/T1_TOA/LC08_072087_20250507 that failed.
Failed to open the image file data/nzd0291/L8/ms/2025-05-07-21-59-37_L8_nzd0291_ms.tif
2025-06-01 00:07:58,548 - satellite_download_logger - ERROR - Could not save metasdata for LANDSAT/LC09/C02/T1_TOA/LC09_071087_20250422 that failed.
Failed to open the image file data/nzd0291/L9/ms/2025-04-22-21-53-49_L9_nzd0291_ms.tif
2025-06-01 00:08:05,941 - satellite_download_logger - INFO - Successfully downloaded image id LANDSAT/LC09/C02/T1_TOA/LC09_071087_20250524 as 2025-05-24-21-53-33_L9_nzd0291_ms.tif
2025-06-01 00:08:12,185 - satellite_download_logger - INFO - Successfully downloaded image id LANDSAT/LC09/C02/T1_TOA/LC09_071088_20250524 as 2025-05-24-21-53-57_L9_nzd0291_ms.tif
2025-06-01 00:08:16,707 - satellite_download_logger - INFO - Successfully downloaded image id LANDSAT/LC09/C02/T1_TOA/LC09_072087_20250515 as 2025-05-15-21-59-47_L9_nzd0291_ms.tif
2025-06-01 00:08:16,737 - satellite_download_logger - INFO - Please read the following information carefully:

2025-06-01 00:08:16,737 - 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.

2025-06-01 00:08:16,737 - 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.

2025-06-01 00:08:16,737 - satellite_download_logger - INFO - ---------------------------------------------------------------------------------------------------------------------
2025-06-01 00:08:16,739 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500


2025-06-01 00:08:16,740 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200


2025-06-01 00:08:16,740 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200


2025-06-01 00:08:16,742 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500


2025-06-01 00:08:16,747 - satellite_download_logger - INFO - 
Processing image L8 2025-05-16-21-53-29
2025-06-01 00:08:16,747 - satellite_download_logger - INFO - L8 2025-05-16-21-53-29 cloud cover : 0.00%
2025-06-01 00:08:16,937 - satellite_download_logger - INFO - L8 2025-05-16-21-53-29: sand: 0.09% ,whitewater: 0.03% ,water: 52.84%
2025-06-01 00:08:16,937 - satellite_download_logger - INFO - L8 2025-05-16-21-53-29: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2025-06-01 00:08:16,940 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 10 shorelines. Number of shorelines after filtering shorelines: 2 shorelines
2025-06-01 00:08:16,940 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 203
2025-06-01 00:08:16,940 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 203
2025-06-01 00:08:16,940 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 203
2025-06-01 00:08:16,940 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 203
2025-06-01 00:08:19,814 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500


2025-06-01 00:08:19,831 - satellite_download_logger - INFO - 
Processing image L9 2025-05-15-21-59-47
2025-06-01 00:08:19,831 - satellite_download_logger - INFO - L9 2025-05-15-21-59-47 cloud cover : 0.00%
2025-06-01 00:08:19,951 - satellite_download_logger - INFO - L9 2025-05-15-21-59-47: sand: 0.08% ,whitewater: 0.10% ,water: 52.25%
2025-06-01 00:08:19,951 - satellite_download_logger - INFO - L9 2025-05-15-21-59-47: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2025-06-01 00:08:19,955 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 10 shorelines. Number of shorelines after filtering shorelines: 2 shorelines
2025-06-01 00:08:19,955 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 200
2025-06-01 00:08:19,955 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 200
2025-06-01 00:08:19,955 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 200
2025-06-01 00:08:19,955 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 200
2025-06-01 00:08:20,285 - satellite_download_logger - INFO - 
Processing image L9 2025-05-24-21-53-33
2025-06-01 00:08:20,285 - satellite_download_logger - INFO - L9 2025-05-24-21-53-33 cloud cover : 0.00%
2025-06-01 00:08:20,377 - satellite_download_logger - INFO - L9 2025-05-24-21-53-33: sand: 0.00% ,whitewater: 0.01% ,water: 52.22%
2025-06-01 00:08:20,377 - satellite_download_logger - INFO - L9 2025-05-24-21-53-33: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2025-06-01 00:08:20,380 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 10 shorelines. Number of shorelines after filtering shorelines: 2 shorelines
2025-06-01 00:08:20,380 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 205
2025-06-01 00:08:20,380 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 205
2025-06-01 00:08:20,380 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 205
2025-06-01 00:08:20,380 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 205
2025-06-01 00:08:21,404 - satellite_download_logger - INFO - 
Processing image L9 2025-05-24-21-53-57
2025-06-01 00:08:21,404 - satellite_download_logger - INFO - L9 2025-05-24-21-53-57 cloud cover : 0.00%
2025-06-01 00:08:21,448 - satellite_download_logger - INFO - L9 2025-05-24-21-53-57: sand: 0.00% ,whitewater: 0.00% ,water: 18.70%
2025-06-01 00:08:21,448 - satellite_download_logger - INFO - L9 2025-05-24-21-53-57: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1
2025-06-01 00:08:21,454 - satellite_download_logger - ERROR - L9 2025-05-24-21-53-57: 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.