2025-09-01 00:14:08,001 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_075091_20250816 as 2025-08-16-22-20-26_L8_nzd0452_ms.tif 2025-09-01 00:14:14,851 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_076090_20250807 as 2025-08-07-22-26-09_L8_nzd0452_ms.tif 2025-09-01 00:14:22,325 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_076090_20250823 as 2025-08-23-22-26-13_L8_nzd0452_ms.tif 2025-09-01 00:14:30,127 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_076091_20250807 as 2025-08-07-22-26-33_L8_nzd0452_ms.tif 2025-09-01 00:14:36,400 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC08/C02/T1_TOA/LC08_076091_20250823 as 2025-08-23-22-26-37_L8_nzd0452_ms.tif 2025-09-01 00:14:42,784 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_075091_20250808 as 2025-08-08-22-20-24_L9_nzd0452_ms.tif 2025-09-01 00:14:47,679 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_075091_20250824 as 2025-08-24-22-20-30_L9_nzd0452_ms.tif 2025-09-01 00:14:55,836 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_076090_20250730 as 2025-07-30-22-26-03_L9_nzd0452_ms.tif 2025-09-01 00:15:03,948 - satellite_download_logger - INFO - Successfully downloaded image ID LANDSAT/LC09/C02/T1_TOA/LC09_076091_20250730 as 2025-07-30-22-26-27_L9_nzd0452_ms.tif 2025-09-01 00:15:11,050 - satellite_download_logger - ERROR - Could not save metadata for LANDSAT/LC09/C02/T1_TOA/LC09_076091_20250815 that failed. Failed to open the image file data/nzd0452/L9/ms/2025-08-15-22-26-39_L9_nzd0452_ms.tif 2025-09-01 00:15:11,119 - satellite_download_logger - INFO - Please read the following information carefully: 2025-09-01 00:15:11,119 - 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 00:15:11,119 - 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 00:15:11,119 - satellite_download_logger - INFO - --------------------------------------------------------------------------------------------------------------------- 2025-09-01 00:15:11,124 - satellite_download_logger - INFO - Extracting shorelines for L5 Minimum Shoreline Length: 500 2025-09-01 00:15:11,125 - satellite_download_logger - INFO - WARNING: CoastSat has hard-coded the value for the minimum shoreline length for L7 to 200 2025-09-01 00:15:11,125 - satellite_download_logger - INFO - Extracting shorelines for L7 Minimum Shoreline Length: 200 2025-09-01 00:15:11,126 - satellite_download_logger - INFO - Extracting shorelines for L8 Minimum Shoreline Length: 500 2025-09-01 00:15:11,520 - satellite_download_logger - WARNING - L8 2025-08-07-22-26-09: Skipped due to cloud cover 53.97% > threshold 10.00% 2025-09-01 00:15:11,618 - satellite_download_logger - WARNING - L8 2025-08-07-22-26-33: Skipped due to cloud cover 55.65% > threshold 10.00% 2025-09-01 00:15:11,625 - satellite_download_logger - INFO - L8 2025-08-16-22-20-26 cloud cover : 0.00% 2025-09-01 00:15:11,716 - satellite_download_logger - INFO - L8 2025-08-16-22-20-26: sand: 0.00% ,whitewater: 0.00% ,water: 2.57% 2025-09-01 00:15:11,717 - satellite_download_logger - INFO - L8 2025-08-16-22-20-26: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:15:11,721 - satellite_download_logger - ERROR - L8 2025-08-16-22-20-26: 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 00:15:11,875 - satellite_download_logger - WARNING - L8 2025-08-23-22-26-13: Skipped due to cloud cover 63.44% > threshold 10.00% 2025-09-01 00:15:11,928 - satellite_download_logger - WARNING - L8 2025-08-23-22-26-37: Skipped due to cloud cover 52.17% > threshold 10.00% 2025-09-01 00:15:11,930 - satellite_download_logger - INFO - Extracting shorelines for L9 Minimum Shoreline Length: 500 2025-09-01 00:15:12,023 - satellite_download_logger - INFO - L9 2025-07-30-22-26-03 cloud cover : 2.91% 2025-09-01 00:15:13,008 - satellite_download_logger - INFO - L9 2025-07-30-22-26-03: sand: 0.00% ,whitewater: 0.87% ,water: 53.77% 2025-09-01 00:15:13,018 - satellite_download_logger - INFO - L9 2025-07-30-22-26-03: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:15:13,027 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 37 shorelines. Number of shorelines after filtering shorelines: 4 shorelines 2025-09-01 00:15:13,028 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 1269 2025-09-01 00:15:13,520 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 1026 2025-09-01 00:15:13,521 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 1026 2025-09-01 00:15:13,562 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 1026 2025-09-01 00:15:14,375 - satellite_download_logger - INFO - L9 2025-07-30-22-26-27 cloud cover : 2.68% 2025-09-01 00:15:15,629 - satellite_download_logger - INFO - L9 2025-07-30-22-26-27: sand: 0.00% ,whitewater: 0.95% ,water: 53.63% 2025-09-01 00:15:15,635 - satellite_download_logger - INFO - L9 2025-07-30-22-26-27: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:15:15,646 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 33 shorelines. Number of shorelines after filtering shorelines: 4 shorelines 2025-09-01 00:15:15,646 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 1277 2025-09-01 00:15:16,192 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 1069 2025-09-01 00:15:16,193 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 1069 2025-09-01 00:15:16,237 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 1069 2025-09-01 00:15:16,733 - satellite_download_logger - INFO - L9 2025-08-08-22-20-24 cloud cover : 0.00% 2025-09-01 00:15:16,990 - satellite_download_logger - INFO - L9 2025-08-08-22-20-24: sand: 0.00% ,whitewater: 0.50% ,water: 9.19% 2025-09-01 00:15:16,991 - satellite_download_logger - INFO - L9 2025-08-08-22-20-24: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:15:16,994 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 6 shorelines. Number of shorelines after filtering shorelines: 3 shorelines 2025-09-01 00:15:16,994 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 401 2025-09-01 00:15:16,994 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 401 2025-09-01 00:15:16,994 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 401 2025-09-01 00:15:17,260 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 397 2025-09-01 00:15:17,987 - satellite_download_logger - INFO - L9 2025-08-24-22-20-30 cloud cover : 0.00% 2025-09-01 00:15:18,226 - satellite_download_logger - INFO - L9 2025-08-24-22-20-30: sand: 0.00% ,whitewater: 0.00% ,water: 12.35% 2025-09-01 00:15:18,228 - satellite_download_logger - INFO - L9 2025-08-24-22-20-30: Less than 50 sand pixels detected within reference shoreline buffer. Using find_wl_contours1 2025-09-01 00:15:18,232 - satellite_download_logger - INFO - Number of shorelines before removing shorelines < 500m: 34 shorelines. Number of shorelines after filtering shorelines: 4 shorelines 2025-09-01 00:15:18,232 - satellite_download_logger - INFO - Number of shoreline points before removing points within 300m of cloud mask 430 2025-09-01 00:15:18,232 - satellite_download_logger - INFO - Number of shoreline points after removing points within 300m of cloud mask 430 2025-09-01 00:15:18,232 - satellite_download_logger - INFO - Number of shoreline points before removing points within 30m of no data pixel 430 2025-09-01 00:15:18,611 - satellite_download_logger - INFO - Number of shoreline points after removing points within 30m of no data pixel 430