Endeavour Ridge

Topography + hydrothermal vent fields

2300m

650 MW

2175m

1km

Main Vent

10 k

m

Conceptual Model

Vent-generated mean currents

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

Da ily M e a n Axia l Ve lo c itie s ER03 N1 75m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

30m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

15m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

30m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

15m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

Da ily M e a n Axia l Ve lo c itie s ER03 S2 75m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

Da ily M e a n Axia l Ve lo c itie s ER03 N3 75m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

30m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

15m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

Da ily M e a n Axia l Ve lo c itie s ER03 S4 75m

26/J ul 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

30m

26

/Jul0

9/A

ug

23

/Au

g0

6/Se

p2

0/Se

p0

4/O

ct1

8/O

ct

5 0 5

c m /s

15

m2

6/Jul

09

/Au

g2

3/A

ug

06

/Sep

20

/Sep

04

/Oct

18

/Oct

5 0 5

c m /s

Da

ily Me

an

Thro

ug

hG

ap

Velo

citie

s ER0

3 G

1 3

0m

N 1

S 4S 2

N 3

G1

26/J u l 09/Aug 23/Aug 06/Se p 20/Se p 04/O ct 18/O ct

5

0

5

cm

/s

15m

Observed daily mean currents from the axial valley N = north of High Rise; S = south of Main Endeavour

Endeavour Ridge

Cross section of POM numerically simulated currents for different locations along the ridge (Thomson, Subbotina and Anisimov; JGR, in review)

Endeavour Ridge

POM numerically simulated currents for different depth horizons (Thomson, Subbotina and Anisimov; JGR, in review)

Endeavour Ridge

Cross section of POM numerically simulated temperature anomalies for different locations along the ridge (Thomson, Subbotina and Anisimov (JGR, in review)

A ) R O P O S L ifting R ing

B ) F lo ta tion Tech n o log ies M F 45 -3000 S yn tactic F oam F lo a t and F ib reg la ss F ram e

C ) M iller C -212 S w ive l

E) P ow er (16v + 48v) & Sh ielded C om m unicat io n to In stru m en ts: S olid B row n = 4 x 16 aw g + 4 x tw iste d pair x 22 aw g (R S 422) D a sh B row n = 2 x 16 a w g + 2 x tw iste d p a ir x 22 aw g (R S 422) S o lid R ed = 4 x 16 aw g + 2 x tw iste d pair x 22 aw g (R S 485) D ash R ed = 2 x 16 aw g + 1 x tw iste d p a ir x 22 aw g (R S 485)

G ) P a ired N ortek A qu ad op 3D A C M an d SeaB ird S B E 37S M P -C T P M icrocat

250 M A B

H ) T h e “L ” B ox C o n ta in s S eria l R S 422 an d R S 48 5 to E thernet C o n version E lectron ics an d P ow er D istrib u tion an d C on tro l E lectron ics , in F ib reg lass F ram e.

F) M o or in g L in e S tren g th M em b er = 0 .39” diam eter C ortlan d Vectran c/w H D P E jacket and 7 /16” C rosby G -4 1 4 T h im b les .

L ) D ep loyab le S u p p ort h in ged from L -B o x F ram e for O D I w et m ate R O V C on n ector [ab ove (I)]

J ) M iller C-212 S w ive l, active d u rin g d ep loym ent, th en in activ ate d by R O P O S.

N ) N E P T U N E exten sion cab le c/w O D I 12E R O V w et m ate connector from eith er S econ d ary Ju n ction B ox or M ed ia C on verter B ox

N E P T U N E C IR C U L AT IO N S T U D Y

M O O R IN G

200 M A B

125 M A B

50 M A B

3 M A B

D ec. 4 , 20 08 , Tom Ju h ás z

U p d ate

K ) R O P O S A ctivated Pull -P in R e lea se .

O ) Spare ?? D ) R D I W H L M D R 75 K H Z A D C P - 3 0 0 0 m in F ibreg lass F ram e

I) S e acon M IN K C C P 10E C S M to 12 P B O F 3M , 12E (14 aw g for 400v + E th ernet) to 1 2 E R O V B H R C P T

M ) C lu m p A n ch or

P ) N B : Syn tactic F loatation , w ill b e added at in stru m ’t d ep th s a s re q u ire d

Planned moorings