2025-10-01 00:13:30,012 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC08/C02/T1_TOA/LC08_076091_20250908 that failed. Failed to open the image file data/nzd0458/L8/ms/2025-09-08-22-26-41_L8_nzd0458_ms.tif 2025-10-01 00:13:39,763 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_077091_20250830 as 2025-08-30-22-32-50_L8_nzd0458_ms.tif 2025-10-01 00:13:49,356 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_076091_20250831 that failed. Failed to open the image file data/nzd0458/L9/ms/2025-08-31-22-26-43_L9_nzd0458_ms.tif 2025-10-01 00:14:22,605 - satellite_download_logger - WARNING - Retry 1/3 for function download_tif with image_id LANDSAT/LC09/C02/T1_TOA/LC09_077091_20250907 due to HTTPSConnectionPool(host='earthengine.googleapis.com', port=443): Read timed out. (read timeout=30) 2025-10-01 00:14:28,073 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_077091_20250907 as 2025-09-07-22-32-57_L9_nzd0458_ms.tif 2025-10-01 00:14:28,102 - satellite_download_logger - INFO - Please read the following information carefully: 2025-10-01 00:14:28,102 - 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 00:14:28,102 - 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 00:14:28,102 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-10-01 00:14:28,104 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-10-01 00:14:28,105 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-10-01 00:14:28,105 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-10-01 00:14:28,107 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-10-01 00:14:28,252 - satellite_download_logger - WARNING - L8 2025-08-07-22-26-33: Skipped due to cloud cover 25.75% > threshold 10.00% 2025-10-01 00:14:28,411 - satellite_download_logger - WARNING - L8 2025-08-23-22-26-37: Skipped due to cloud cover 39.06% > threshold 10.00% 2025-10-01 00:14:28,468 - satellite_download_logger - INFO - L8 2025-08-30-22-32-50 cloud cover : 0.00% 2025-10-01 00:14:28,728 - satellite_download_logger - INFO - L8 2025-08-30-22-32-50: sand: 0.00% ,whitewater: 4.28% ,water: 47.89% 2025-10-01 00:14:28,731 - satellite_download_logger - INFO - L8 2025-08-30-22-32-50: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:14:28,740 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 5 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-10-01 00:14:28,740 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 510 2025-10-01 00:14:28,740 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 510 2025-10-01 00:14:28,740 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 510 2025-10-01 00:14:28,857 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 510 2025-10-01 00:14:30,503 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-10-01 00:14:30,663 - satellite_download_logger - WARNING - L9 2025-08-15-22-26-39: Skipped due to cloud cover 84.23% > threshold 10.00% 2025-10-01 00:14:33,295 - satellite_download_logger - INFO - L9 2025-08-22-22-32-52 cloud cover : 0.00% 2025-10-01 00:14:33,446 - satellite_download_logger - INFO - L9 2025-08-22-22-32-52: sand: 0.00% ,whitewater: 0.00% ,water: 1.53% 2025-10-01 00:14:33,447 - satellite_download_logger - INFO - L9 2025-08-22-22-32-52: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:14:33,450 - satellite_download_logger - ERROR - L9 2025-08-22-22-32-52: 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. 2025-10-01 00:14:33,460 - satellite_download_logger - INFO - L9 2025-09-07-22-32-57 cloud cover : 0.00% 2025-10-01 00:14:33,777 - satellite_download_logger - INFO - L9 2025-09-07-22-32-57: sand: 0.00% ,whitewater: 0.00% ,water: 39.16% 2025-10-01 00:14:33,778 - satellite_download_logger - INFO - L9 2025-09-07-22-32-57: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-10-01 00:14:33,778 - satellite_download_logger - ERROR - L9 2025-09-07-22-32-57: 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/python3.12/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.