2025-10-01 00:46:38,600 - 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/sar0680/L8/ms/2025-08-27-10-06-10_L8_sar0680_ms.tif 2025-10-01 00:46:42,092 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250912 as 2025-09-12-10-06-16_L8_sar0680_ms.tif 2025-10-01 00:46:47,221 - 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/sar0680/L8/ms/2025-08-27-10-06-34_L8_sar0680_ms.tif 2025-10-01 00:46:52,532 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193033_20250912 as 2025-09-12-10-06-40_L8_sar0680_ms.tif 2025-10-01 00:46:57,509 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250904 as 2025-09-04-10-06-19_L9_sar0680_ms.tif 2025-10-01 00:47:00,817 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250920 as 2025-09-20-10-06-22_L9_sar0680_ms.tif 2025-10-01 00:47:08,486 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193033_20250920 as 2025-09-20-10-06-46_L9_sar0680_ms.tif 2025-10-01 00:47:08,522 - satellite_download_logger - INFO - Please read the following information carefully: 2025-10-01 00:47:08,522 - 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 00:47:08,522 - 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 00:47:08,522 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-10-01 00:47:08,524 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-10-01 00:47:08,525 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-10-01 00:47:08,525 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-10-01 00:47:08,526 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-10-01 00:47:08,530 - satellite_download_logger - INFO - L8 2025-09-12-10-06-16 cloud cover : 0.00% 2025-10-01 00:47:08,564 - satellite_download_logger - INFO - L8 2025-09-12-10-06-16: sand: 0.00% ,whitewater: 0.00% ,water: 54.83% 2025-10-01 00:47:08,564 - 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 00:47:08,565 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:08,565 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 94 2025-10-01 00:47:08,565 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 94 2025-10-01 00:47:08,565 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 94 2025-10-01 00:47:08,565 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 94 2025-10-01 00:47:08,967 - satellite_download_logger - INFO - L8 2025-09-12-10-06-40 cloud cover : 0.00% 2025-10-01 00:47:08,994 - satellite_download_logger - INFO - L8 2025-09-12-10-06-40: sand: 0.00% ,whitewater: 0.00% ,water: 10.86% 2025-10-01 00:47:08,995 - 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 00:47:08,997 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 0 shorelines 2025-10-01 00:47:09,193 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-10-01 00:47:09,202 - satellite_download_logger - WARNING - L9 2025-08-19-10-06-14: Skipped due to cloud cover 62.43% > threshold 10.00% 2025-10-01 00:47:09,205 - satellite_download_logger - INFO - L9 2025-09-04-10-06-19 cloud cover : 0.00% 2025-10-01 00:47:09,236 - satellite_download_logger - INFO - L9 2025-09-04-10-06-19: sand: 0.00% ,whitewater: 0.00% ,water: 54.69% 2025-10-01 00:47:09,236 - 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 00:47:09,237 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:09,237 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 96 2025-10-01 00:47:09,237 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 96 2025-10-01 00:47:09,237 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 96 2025-10-01 00:47:09,238 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 96 2025-10-01 00:47:09,520 - satellite_download_logger - INFO - L9 2025-09-20-10-06-22 cloud cover : 0.00% 2025-10-01 00:47:09,552 - satellite_download_logger - INFO - L9 2025-09-20-10-06-22: sand: 0.00% ,whitewater: 0.00% ,water: 54.62% 2025-10-01 00:47:09,552 - 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 00:47:09,553 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:47:09,553 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 95 2025-10-01 00:47:09,553 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 95 2025-10-01 00:47:09,553 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 95 2025-10-01 00:47:09,554 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 95 2025-10-01 00:47:09,847 - satellite_download_logger - INFO - L9 2025-09-20-10-06-46 cloud cover : 0.00% 2025-10-01 00:47:09,856 - satellite_download_logger - INFO - L9 2025-09-20-10-06-46: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% 2025-10-01 00:47:09,856 - 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 00:47:09,859 - 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.