2025-10-20 09:49:46,187 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_071088_20250820 that failed. Failed to open the image file data/nzd0330/L8/ms/2025-08-20-21-54-31_L8_nzd0330_ms.tif 2025-10-20 09:49:52,034 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_072088_20250827 that failed. Failed to open the image file data/nzd0330/L8/ms/2025-08-27-22-00-41_L8_nzd0330_ms.tif 2025-10-20 09:49:59,929 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_072088_20250912 that failed. Failed to open the image file data/nzd0330/L8/ms/2025-09-12-22-00-48_L8_nzd0330_ms.tif 2025-10-20 09:50:07,582 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_071088_20250727 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-07-27-21-54-21_L9_nzd0330_ms.tif 2025-10-20 09:50:14,671 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_071088_20250929 as 2025-09-29-21-54-44_L9_nzd0330_ms.tif 2025-10-20 09:50:21,570 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_071088_20251015 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-10-15-21-54-51_L9_nzd0330_ms.tif 2025-10-20 09:50:28,280 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_071089_20250727 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-07-27-21-54-45_L9_nzd0330_ms.tif 2025-10-20 09:50:37,216 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_071089_20250929 as 2025-09-29-21-55-08_L9_nzd0330_ms.tif 2025-10-20 09:50:44,049 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_072088_20250819 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-08-19-22-00-45_L9_nzd0330_ms.tif 2025-10-20 09:50:51,768 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_072088_20250904 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-09-04-22-00-50_L9_nzd0330_ms.tif 2025-10-20 09:50:59,607 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_072088_20250920 that failed. Failed to open the image file data/nzd0330/L9/ms/2025-09-20-22-00-53_L9_nzd0330_ms.tif 2025-10-20 09:51:05,471 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_072088_20251006 as 2025-10-06-22-00-58_L9_nzd0330_ms.tif 2025-10-20 09:51:05,520 - satellite_download_logger - INFO - Please read the following information carefully: 2025-10-20 09:51:05,521 - 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. 2025-10-20 09:51:05,521 - 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. 2025-10-20 09:51:05,521 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-10-20 09:51:05,523 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-10-20 09:51:05,529 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-10-20 09:51:05,529 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-10-20 09:51:05,531 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-10-20 09:51:05,644 - satellite_download_logger - WARNING - L8 2025-08-11-22-00-40: Skipped due to cloud cover 66.71% > threshold 10.00% 2025-10-20 09:51:05,689 - satellite_download_logger - INFO - L8 2025-08-11-22-01-04 cloud cover : 0.00% 2025-10-20 09:51:05,706 - satellite_download_logger - INFO - L8 2025-08-11-22-01-04: sand: 0.00% ,whitewater: 0.00% ,water: 2.17% 2025-10-20 09:51:05,707 - satellite_download_logger - INFO - L8 2025-08-11-22-01-04: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-20 09:51:05,710 - satellite_download_logger - ERROR - L8 2025-08-11-22-01-04: 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. 2025-10-20 09:51:05,713 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-10-20 09:51:06,010 - satellite_download_logger - WARNING - L9 2025-08-12-21-54-31: Skipped due to cloud cover 89.92% > threshold 10.00% 2025-10-20 09:51:06,120 - satellite_download_logger - WARNING - L9 2025-08-12-21-54-55: Skipped due to cloud cover 83.44% > threshold 10.00% 2025-10-20 09:51:06,242 - satellite_download_logger - WARNING - L9 2025-08-28-21-54-35: Skipped due to cloud cover 44.68% > threshold 10.00% 2025-10-20 09:51:06,365 - satellite_download_logger - WARNING - L9 2025-08-28-21-54-59: Skipped due to cloud cover 32.68% > threshold 10.00% 2025-10-20 09:51:06,522 - satellite_download_logger - WARNING - L9 2025-09-13-21-54-41: Skipped due to cloud cover 53.12% > threshold 10.00% 2025-10-20 09:51:06,615 - satellite_download_logger - INFO - L9 2025-09-29-21-54-44 cloud cover : 5.93% 2025-10-20 09:51:06,897 - satellite_download_logger - INFO - L9 2025-09-29-21-54-44: sand: 0.00% ,whitewater: 0.01% ,water: 47.79% 2025-10-20 09:51:06,899 - satellite_download_logger - INFO - L9 2025-09-29-21-54-44: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-20 09:51:06,902 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 3 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-20 09:51:06,902 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 182 2025-10-20 09:51:06,935 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 156 2025-10-20 09:51:06,935 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 156 2025-10-20 09:51:06,940 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 156 2025-10-20 09:51:07,595 - satellite_download_logger - INFO - L9 2025-09-29-21-55-08 cloud cover : 0.00% 2025-10-20 09:51:07,770 - satellite_download_logger - INFO - L9 2025-09-29-21-55-08: sand: 0.00% ,whitewater: 0.03% ,water: 50.14% 2025-10-20 09:51:07,772 - satellite_download_logger - INFO - L9 2025-09-29-21-55-08: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-20 09:51:07,775 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-20 09:51:07,775 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 469 2025-10-20 09:51:07,775 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 469 2025-10-20 09:51:07,775 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 469 2025-10-20 09:51:07,787 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 469 2025-10-20 09:51:08,437 - satellite_download_logger - WARNING - L9 2025-10-06-22-00-58: Skipped due to cloud cover 86.15% > threshold 10.00%