2025-09-01 00:00:32,956 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_074084_20250724 as 2025-07-24-22-11-17_L8_nzd0027_ms.tif 2025-09-01 00:00:41,895 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_074084_20250809 as 2025-08-09-22-11-25_L8_nzd0027_ms.tif 2025-09-01 00:00:52,277 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_075084_20250731 as 2025-07-31-22-17-29_L8_nzd0027_ms.tif 2025-09-01 00:01:03,233 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_075084_20250816 as 2025-08-16-22-17-38_L8_nzd0027_ms.tif 2025-09-01 00:01:13,543 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_074084_20250801 as 2025-08-01-22-11-18_L9_nzd0027_ms.tif 2025-09-01 00:01:24,117 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_074084_20250817 as 2025-08-17-22-11-30_L9_nzd0027_ms.tif 2025-09-01 00:01:35,005 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_075084_20250808 that failed. Failed to open the image file data/nzd0027/L9/ms/2025-08-08-22-17-36_L9_nzd0027_ms.tif 2025-09-01 00:01:43,012 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_075084_20250824 as 2025-08-24-22-17-43_L9_nzd0027_ms.tif 2025-09-01 00:01:43,139 - satellite_download_logger - INFO - Please read the following information carefully: 2025-09-01 00:01:43,139 - 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. 2025-09-01 00:01:43,139 - 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. 2025-09-01 00:01:43,139 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-09-01 00:01:43,145 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-09-01 00:01:43,146 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-09-01 00:01:43,146 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-09-01 00:01:43,148 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-09-01 00:01:43,164 - satellite_download_logger - INFO - L8 2025-07-24-22-11-17 cloud cover : 0.24% 2025-09-01 00:01:43,309 - satellite_download_logger - INFO - L8 2025-07-24-22-11-17: sand: 0.00% ,whitewater: 0.00% ,water: 0.19% 2025-09-01 00:01:43,311 - satellite_download_logger - INFO - L8 2025-07-24-22-11-17: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:01:43,318 - satellite_download_logger - ERROR - L8 2025-07-24-22-11-17: 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. 2025-09-01 00:01:43,364 - satellite_download_logger - WARNING - L8 2025-07-31-22-17-29: Skipped due to cloud cover 33.20% > threshold 10.00% 2025-09-01 00:01:43,381 - satellite_download_logger - INFO - L8 2025-08-09-22-11-25 cloud cover : 0.00% 2025-09-01 00:01:43,551 - satellite_download_logger - INFO - L8 2025-08-09-22-11-25: sand: 0.00% ,whitewater: 0.00% ,water: 1.05% 2025-09-01 00:01:43,553 - satellite_download_logger - INFO - L8 2025-08-09-22-11-25: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:01:43,567 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 33 shorelines. Number of shorelines after filtering shorelines: 2 shorelines 2025-09-01 00:01:43,567 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 146 2025-09-01 00:01:43,567 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 146 2025-09-01 00:01:43,567 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 146 2025-09-01 00:01:43,770 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 140 2025-09-01 00:01:44,216 - satellite_download_logger - WARNING - L8 2025-08-16-22-17-38: Skipped due to cloud cover 82.55% > threshold 10.00% 2025-09-01 00:01:44,218 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-09-01 00:01:44,236 - satellite_download_logger - INFO - L9 2025-08-01-22-11-18 cloud cover : 0.00% 2025-09-01 00:01:44,383 - satellite_download_logger - INFO - L9 2025-08-01-22-11-18: sand: 0.10% ,whitewater: 0.04% ,water: 1.61% 2025-09-01 00:01:44,385 - satellite_download_logger - INFO - L9 2025-08-01-22-11-18: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:01:44,386 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 0 shorelines. Number of shorelines after filtering shorelines: 0 shorelines 2025-09-01 00:01:44,802 - satellite_download_logger - INFO - L9 2025-08-17-22-11-30 cloud cover : 2.93% 2025-09-01 00:01:45,089 - satellite_download_logger - INFO - L9 2025-08-17-22-11-30: sand: 0.08% ,whitewater: 0.38% ,water: 12.20% 2025-09-01 00:01:45,091 - satellite_download_logger - INFO - L9 2025-08-17-22-11-30: Greater than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours2 2025-09-01 00:01:45,101 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 44 shorelines. Number of shorelines after filtering shorelines: 4 shorelines 2025-09-01 00:01:45,101 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 633 2025-09-01 00:01:45,172 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 633 2025-09-01 00:01:45,172 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 633 2025-09-01 00:01:46,028 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 633 2025-09-01 00:01:46,700 - satellite_download_logger - WARNING - L9 2025-08-24-22-17-43: Skipped due to cloud cover 66.22% > threshold 10.00%