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Cruise Dates

Arrival and Departure from Bremerhaven

* From Bremerhaven: We would have to leave early (guessing latest 08:00) on 10th April with a preferred time of departure 07:30; 

* Return Bremerhaven: Might be 17:00 or 18:00 with 18:00 as a preferable time;  

Cruise Planning Maps

More maps here : 1 - Complete Overview, 2 - Extent that can be surveyed during the excursion , 3 - detail of area around Helgoland


Detailed Daily Plans

DAY 1 - Tuesday
  1. Leave at 07:30 from docks.
  2. Transit about 1 hr
  3. Start with Multibeam in the dredge spill regions (see map and publications)
    1. Start line 1: 8 5.552763 53 50.66477 Degrees Decimal Minutes to End line 1: 8 3.237202 53 51.39688 Degrees Decimal Minutes; line length, 2.8 km; speed 5 knots; At least three lines further to the East with line spacing of about ~50 m, and with sufficient swath overlap.
  4. After the end of lines; a CTD/SVP
  5. Start ADCP Line
    1. Head towards the southern tip of the ridges (7 59.270368 54 8.8996 Degrees Decimal Minutes), 
    2. Taking at least one CTD along the way
  6. Short multibeam lines (ideally three):
    1. start line ridges area multibeam: 7 59.270368 54 8.8996 Degrees Decimal Minutes; Stop line 1: 8 0.215957 54 8.896072 Degrees Decimal Minutes; line lenght; 1 km, line spacing, towards the South; ~50 m, with sufficient swath overlap
  7. Arrive Helgoland 18:00

-- For the Captain --

Bremerhaven Departure 10−Apr−2012 07:00 speed 8 knots
Start of Line 1 Multibeam/SES2000 53° 47.78’ N 8° 19.75’ 10−Apr−2012 09:10 speed 5 knots
End of Line 1 Multibeam/SES2000 53° 51.29’ N 8° 10’ E 10−Apr−2012 10:30 speed 5 knots
Start of Line 2 Multibeam/SES2000 53° 51.33’ N 8° 10.04’ E 10−Apr−2012 10:30 speed 5 knots
End of Line 2 Multibeam/SES2000 53° 47.82’ N 8° 19.79’ E 10−Apr−2012 11:50 speed 5 knots
Start of Line 3 Multibeam/SES2000 53° 47.86’ N 8° 19.82’ E 10−Apr−2012 11:50 speed 5 knots
End of Line 3 Multibeam/SES2000 53° 51.37’ N 8° 10.09’ E 10−Apr−2012 13:10 speed 5 knots
CTD/SVP/Sediment Station 1 53° 51.37’ N 8° 10.09’ E 10−Apr−2012 13:10 
ADCP Line to Helgoland speed 10 knots
Helgoland Arrival 10−Apr−2012 18:00 speed 10 knots
DAY 2 - Wednesday

Exploration of the region due West of Helgoland; Leave Docks at 08:00; check breakfast times of the crew

  1. Exploratory multibeam/SES2000 in the forbidden zone
    1. start line of line: 7 53.515362 54 9.002957 Degrees Decimal Minutes; End of Line  7 49.320617 54 11.20335 Degrees Decimal Minutes; line lengt 6 km; line spacing 50 m, towards East and NE of above line; at least 3; speed 5 knots
  2. SVP/CTD 
  3. Multibeam lines (X cross) across the shipwreck 6 at 7 50.748004 54 9.143726 Degrees Decimal Minutes
  4. Oceanography - with multinet; push core, box core etc
  5. Return to Site 1 or go to point 6 of Day 1
    DAY 3 - Thursday

Main gravity coring session in the afternoon; take at least one in the morning; multibeam ridge fill in between;

Morning start with:

  1. Multibeam ridges fill - start line 7 59.057033 54 9.832418 Degrees Decimal Minutes; stop line 8 0.411659 54 9.881957 Degrees Decimal Minutes; line length - 1.5 km; line spacing ~50 m, with sufficient swath overlap; speed 5 knots
  2. SVP/CTD in the middle of the area
  3. Multibeam (cross lines) of the Shipwreck 1 at 8 1.511895 54 10.590609 Degrees Decimal Minutes

Main Core Sites:

  1. Core A 54°06.7'N - 08°02.2'E
  2. Core B 54°06.00'N - 07°59.00'E
  3. Core C 54°05.00'N - 07°58.00'E
DAY 4 - Friday

Tides seems to be okay to go North between Helgoland and Dune to visit the NE sections .. with multibeam, shipwrecks, oceanography, magnetics

  1. Multibeam streamlined zone; start line 7 41.033472 54 16.884442 Degrees Decimal Minutes; Stop line 7 37.079052 54 18.11128 Degrees Decimal Minutes; line length 5 km; line spacing ~50 m, with sufficient swath overlap; speed 5 knots
  2. SVP/CTD in the middle of the area
  3. Oceanography and Geology
  4. ADCP line
  5. Shipwreck and magnetics ?
DAY 5 - Saturday

Leave early (07:30); add a line or two on the multibeam dredge sites; redo- ADCP / CTD profile on the way back ..

  1. ADCP / CTD line start 7 59.988804 54 13.544738 Degrees Decimal Minutes; stop 7 42.66892 53 52.575531 Degrees Decimal Minutes; length; 45 km; spacing of CTD casts at 5 km (9 stops)

    Tides

Bremerhaven

Tuesday, April 10, 2012

Saturday, April 14, 2012

04:25 GMT+02:00 High tide 4.07 Meters

01:55 GMT+02:00 Low tide 0.27 Meters

11:00 GMT+02:00 Low tide -0.42 Meters

08:11 GMT+02:00 High tide 3.19 Meters

16:44 GMT+02:00 High tide 3.99 Meters

14:16 GMT+02:00 Low tide 0.62 Meters

23:23 GMT+02:00 Low tide -0.45 Meters

20:30 GMT+02:00 High tide 3.38 Meters

Helgoland

Tuesday, April 10, 2012

Wednesday, April 11, 2012

Thursday, April 12, 2012

Friday, April 13, 2012

Saturday, April 14, 2012

02:49 GMT+02:00 High tide 3.13 Meters

03:41 GMT+02:00 High tide 3.06 Meters

04:31 GMT+02:00 High tide 2.91 Meters

05:25 GMT+02:00 High tide 2.71 Meters

24:37 GMT+02:00 Low tide 0.41 Meters

09:38 GMT+02:00 Low tide 0.08 Meters

10:20 GMT+02:00 Low tide 0.13 Meters

11:02 GMT+02:00 Low tide 0.27 Meters

11:48 GMT+02:00 Low tide 0.48 Meters

06:25 GMT+02:00 High tide 2.54 Meters

15:16 GMT+02:00 High tide 3.15 Meters

16:04 GMT+02:00 High tide 3.13 Meters

16:52 GMT+02:00 High tide 3.03 Meters

17:44 GMT+02:00 High tide 2.91 Meters

12:50 GMT+02:00 Low tide 0.68 Meters

22:03 GMT+02:00 Low tide -0.01 Meters

22:47 GMT+02:00 Low tide 0.05 Meters

23:37 GMT+02:00 Low tide 0.21 Meters

 

18:46 GMT+02:00 High tide 2.82 Meters

Based on the tides at Helgoland - only Thursday and Friday would be an option to go North between the Islands

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