2025-08-01 00:31:29,398 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250624 as 2025-06-24-10-05-51_L8_sar0747_ms.tif 2025-08-01 00:31:32,650 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193032_20250710 as 2025-07-10-10-05-54_L8_sar0747_ms.tif 2025-08-01 00:31:37,727 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193033_20250624 as 2025-06-24-10-06-15_L8_sar0747_ms.tif 2025-08-01 00:31:42,306 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_193033_20250710 as 2025-07-10-10-06-18_L8_sar0747_ms.tif 2025-08-01 00:31:45,851 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250702 as 2025-07-02-10-05-51_L9_sar0747_ms.tif 2025-08-01 00:31:51,713 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193032_20250718 as 2025-07-18-10-05-57_L9_sar0747_ms.tif 2025-08-01 00:31:56,589 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193033_20250702 as 2025-07-02-10-06-15_L9_sar0747_ms.tif 2025-08-01 00:32:02,352 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_193033_20250718 as 2025-07-18-10-06-21_L9_sar0747_ms.tif 2025-08-01 00:32:02,432 - satellite_download_logger - INFO - Please read the following information carefully: 2025-08-01 00:32:02,433 - 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. 2025-08-01 00:32:02,433 - 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. 2025-08-01 00:32:02,433 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-08-01 00:32:02,434 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-08-01 00:32:02,439 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-08-01 00:32:02,439 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-08-01 00:32:02,440 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-08-01 00:32:02,444 - satellite_download_logger - INFO - L8 2025-06-24-10-05-51 cloud cover : 0.00% 2025-08-01 00:32:02,567 - satellite_download_logger - INFO - L8 2025-06-24-10-05-51: sand: 0.00% ,whitewater: 0.00% ,water: 17.87% 2025-08-01 00:32:02,568 - satellite_download_logger - INFO - L8 2025-06-24-10-05-51: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:02,569 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-08-01 00:32:02,569 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 57 2025-08-01 00:32:02,569 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 57 2025-08-01 00:32:02,569 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 57 2025-08-01 00:32:02,572 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 54 2025-08-01 00:32:02,877 - satellite_download_logger - INFO - L8 2025-06-24-10-06-15 cloud cover : 0.00% 2025-08-01 00:32:02,976 - satellite_download_logger - INFO - L8 2025-06-24-10-06-15: sand: 0.00% ,whitewater: 0.00% ,water: 44.41% 2025-08-01 00:32:02,976 - satellite_download_logger - INFO - L8 2025-06-24-10-06-15: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:02,977 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-08-01 00:32:02,978 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 102 2025-08-01 00:32:02,978 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 102 2025-08-01 00:32:02,978 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 102 2025-08-01 00:32:02,978 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 102 2025-08-01 00:32:03,252 - satellite_download_logger - INFO - L8 2025-07-10-10-05-54 cloud cover : 0.00% 2025-08-01 00:32:03,263 - satellite_download_logger - INFO - L8 2025-07-10-10-05-54: sand: 0.00% ,whitewater: 0.00% ,water: 0.00% 2025-08-01 00:32:03,263 - satellite_download_logger - INFO - L8 2025-07-10-10-05-54: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:03,265 - satellite_download_logger - ERROR - L8 2025-07-10-10-05-54: 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. 2025-08-01 00:32:03,268 - satellite_download_logger - WARNING - L8 2025-07-10-10-06-18: Skipped due to cloud cover 46.49% > threshold 10.00% 2025-08-01 00:32:03,270 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-08-01 00:32:03,273 - satellite_download_logger - INFO - L9 2025-07-02-10-05-51 cloud cover : 0.00% 2025-08-01 00:32:03,297 - satellite_download_logger - INFO - L9 2025-07-02-10-05-51: sand: 0.00% ,whitewater: 0.00% ,water: 20.60% 2025-08-01 00:32:03,297 - satellite_download_logger - INFO - L9 2025-07-02-10-05-51: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:03,298 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-08-01 00:32:03,298 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 61 2025-08-01 00:32:03,298 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 61 2025-08-01 00:32:03,298 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 61 2025-08-01 00:32:03,301 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 58 2025-08-01 00:32:03,647 - satellite_download_logger - INFO - L9 2025-07-02-10-06-15 cloud cover : 0.00% 2025-08-01 00:32:03,683 - satellite_download_logger - INFO - L9 2025-07-02-10-06-15: sand: 0.00% ,whitewater: 0.00% ,water: 44.35% 2025-08-01 00:32:03,684 - satellite_download_logger - INFO - L9 2025-07-02-10-06-15: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:03,685 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-08-01 00:32:03,685 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 101 2025-08-01 00:32:03,685 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 101 2025-08-01 00:32:03,685 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 101 2025-08-01 00:32:03,685 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 101 2025-08-01 00:32:03,950 - satellite_download_logger - INFO - L9 2025-07-18-10-05-57 cloud cover : 0.00% 2025-08-01 00:32:03,981 - satellite_download_logger - INFO - L9 2025-07-18-10-05-57: sand: 0.00% ,whitewater: 0.00% ,water: 5.20% 2025-08-01 00:32:03,981 - satellite_download_logger - INFO - L9 2025-07-18-10-05-57: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:03,982 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 0 shorelines 2025-08-01 00:32:04,178 - satellite_download_logger - INFO - L9 2025-07-18-10-06-21 cloud cover : 0.00% 2025-08-01 00:32:04,227 - satellite_download_logger - INFO - L9 2025-07-18-10-06-21: sand: 0.00% ,whitewater: 0.00% ,water: 44.78% 2025-08-01 00:32:04,227 - satellite_download_logger - INFO - L9 2025-07-18-10-06-21: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-08-01 00:32:04,228 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 1 shorelines. Number of shorelines after filtering shorelines: 1 shorelines 2025-08-01 00:32:04,229 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 97 2025-08-01 00:32:04,229 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 97 2025-08-01 00:32:04,229 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 97 2025-08-01 00:32:04,229 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 97