Potential Sampling Patterns for Stellwagen

  1. 10x10 km resolution, differing required minimum water depth for a CTD (doing a CTD in 5m of water seems unlikely, 20m seems a likely minimum)
  2. as above but track modified for geography
  3. as 2) but two northernmost rows removed for time consideration
  4. 20m required minimum water depth; 10x15 km, 15x10 km, 15x15 km, and 20x20 km resolution
  5. as 4) but track modified for geography
  6. 20 required minimum water depth; 15x20km; 15x20km (adjusted); 10x15km + scanfish
  7. Scanfish tracks
    • Down Center Stellwagen Bank
    • Down/Up Edges Stellwagen Bank
    • Radiator Across Southern Stellwagen Bank
    • Radiator Along Southern Stellwagen Bank
  8. Scanfish tracks
    • Across Northern and Southern Stellwagen Bank
    • AUV Tracks and Mooring Locations
  9. Scanfish tracks
    • Along and Across Bank
    • Along Mass. Bay and Bank
    • Across Mass. Bay and Bank
    • Along Stellwagen Sanctuary
  10. Scanfish tracks
    • Repeat Track Along Bay
    • Repeat In-Shore Track
    • Across Stellwagen Sanctuary

The starting point is chosen as being close to the entrance of the Cape Cod Canal (with the thought that a ship would be transiting from there). The track is designed to attempt to return towards Stellwagen Bank, not end far removed from the area of interest.

These patterns do have a dependence on the chosen starting point.

10km x 10km resolution; Starting Point at 41.804N, 70.526W
No adjustments to sampling due to geography
Min Depth - 5m Min Depth - 10m Min Depth - 15m Min Depth - 20m
radiator_10km10km_05m.png radiator_10km10km_10m.png radiator_10km10km_15m.png radiator_10km10km_20m.png
134 CTD; 4 days, 5:30 hours 132 CTD; 4 days, 5:27 hours 131 CTD; 4 days, 4:17 hours 114 CTD; 3 days, 14:12 hours

10km x 10km resolution; Starting Point at 41.804N, 70.526W
Sampling adjusted only for geography
Min Depth - 5m Min Depth - 10m Min Depth - 15m Min Depth - 20m
radiator_10km10km_05m_rev1.png radiator_10km10km_10m_rev1.png radiator_10km10km_15m_rev1.png radiator_10km10km_20m_rev1.png
134 CTD; 4 days, 4:01 hours 132 CTD; 4 days, 3:49 hours 131 CTD; 4 days, 3:15 hours 114 CTD; 3 days, 13:40 hours

10km x 10km resolution; Starting Point at 41.804N, 70.526W
Sampling adjusted for geography, Remove northern two rows
Min Depth - 5m Min Depth - 10m Min Depth - 15m Min Depth - 20m
radiator_10km10km_05m_rev2.png radiator_10km10km_10m_rev2.png radiator_10km10km_15m_rev2.png radiator_10km10km_20m_rev2.png
123 CTD; 3 days, 19:55 hours 121 CTD; 3 days, 19:41 hours 120 CTD; 3 days, 19:02 hours 105 CTD; 3 days, 6:59 hours

20m Depth; Starting Point at 41.804N, 70.526W
No adjustments to sampling due to geography
10km x 15km 15km x 10km 15km x 15km 20km x 20km
radiator_10km15km_20m.png radiator_15km10km_20m.png radiator_15km15km_20m.png radiator_20km20km_20m.png
76 CTD; 2 days, 14:36 hours 85 CTD; 3 days, 13:36 hours 59 CTD; 2 days, 13:34 hours 28 CTD; 1 days, 12:01 hours

20m Depth; Starting Point at 41.804N, 70.526W
Sampling adjusted only for geography
10km x 15km 15km x 10km 15km x 15km 20km x 20km
radiator_10km15km_20m_rev1.png radiator_15km10km_20m_rev1.png radiator_15km15km_20m_rev1.png radiator_20km20km_20m_rev1.png
79 CTD; 2 days, 16:15 hours
Transit: 2 days, 1:06; Station: 15:09		 85 CTD; 3 days, 8:24 hours
Transit: 2 days, 14:49; Station: 17:35		 59 CTD; 2 days, 13:37 hours
Transit: 2 days, 1:31; Station: 12:06		 28 CTD; 1 days, 11:51 hours
Transit: 1 days, 6:54; Station: 4:57

20m Depth; Starting Point at 41.804N, 70.526W
15km x 20km 15km x 20km (Adjusted) 10km x 15km + scanfish (green) 10km x 20km + scanfish (green); 5m
radiator_15km20km_20m.png radiator_15km20km_20m_rev1.png radiator_10km15km_20m_scanfish.png radiator_10km10km_05m_rev3.png
45 CTD; 2 days, 1:04 hours
Transit: 1 days, 15:53; Station: 9:12		 45 CTD; 2 days, 2:25 hours
Transit: 1 days, 17:13; Station: 9:12		 79 CTD; 2 days, 21:15 hours 46 CTD; 1 day, 22:27 hours

20km x 20km resolution; Starting Point at 41.804N, 70.526W
No adjustments to sampling due to geography
Min Depth - 5m Min Depth - 10m Min Depth - 15m Min Depth - 20m
radiator_20km20km_05m.png radiator_20km20km_10m.png radiator_20km20km_15m.png radiator_20km20km_20m.png
38 CTD; 2 days, 6:30 hours 37 CTD; 2 days, 4:52 hours 37 CTD; 2 days, 0:34 hours 28 CTD; 1 days, 12:02 hours

Recommended Scanfish Surveys
Down Center Stellwagen Bank Down/Up Edges Stellwagen Bank Radiator Across Southern Stellwagen Bank Radiator Along Southern Stellwagen Bank
sample_scanfish_10_tst_new.png sample_scanfish_11_tst_new.png sample_scanfish_12_tst_new.png sample_scanfish_14_tst_new.png
Total Time: 5:21 hours Total Time: 7:21 hours Total Time: 6:20 hours Total Time: 5:55 hours
Across Northern and Southern Stellwagen Bank AUV and Moorings    
sample_scanfish_13_tst_new.png sample_auv_1_tst.png sample_scanfish_15_tst_new.png  
Total Time: 4:52 hours 4 4-6 hour surveys Total Time: 4:05 hours  

Other Possible Scanfish Surveys
Along and Across Bank Along Mass. Bay and Bank Across Mass. Bay and Bank Along Stellwagen Sanctuary
sample_scanfish_01.png sample_scanfish_02.png sample_scanfish_03.png sample_scanfish_04.png
Repeat Track Along Bay Repeat In-Shore Track Across Stellwagen Sanctuary  
sample_scanfish_05.png sample_scanfish_06.png sample_scanfish_07.png