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Dive
R503 |
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Dive
Plan: ASHES Vent Field - 1) Recover 2 high temp. recorders and 2 Vemco low
temp recorders. 2) Deploy Osmosampler/HOBO package at Hell. 3) Recover 8-10
bacteria traps. 4) Suction sample bacterial mat at trap locations. |
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Dive
Configuration: Suction Sampler, BioBox with 4 microbial trap arrays &
2 high temperature HOBOs. NO still camera. |
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Note:
Nav fixes not edited in the logs. All fixes were logged, regardless of accuracy.
Use the dive plots to determine actual positions. |
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UTC
Hour |
Min |
Depth (m) |
Sub Hdng (deg) |
UTM X |
UTM Y |
Comments |
Frmgrbs, Photos, Samples |
20 |
15 |
20 |
111 |
421417 |
5087133 |
20:15. ROPOS in water. Wind N at ~2 kt, seas 2 m. |
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21 |
37 |
1544 |
254 |
421333 |
5087131 |
ROPOS on bottom. |
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21 |
38 |
1544 |
80 |
421330 |
5087119 |
good fix. Looking for Hell Vent. |
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21 |
39 |
1544 |
74 |
421350 |
5087128 |
At Hell Vent to deploy osmosampler. |
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21 |
50 |
1544 |
237 |
421371 |
5087144 |
getting ready to plant osmo at Hell Vent |
R503-2 |
22 |
1 |
1542 |
72 |
421358 |
5087126 |
Tried to put osmosampler into vent from which we recovered
HOBO on Dive 502 but no go. |
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22 |
14 |
1544 |
28 |
421364 |
5087133 |
Released osmosampler's probe at active vent near top of
Hell Vent. Now needs to be positioned. |
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22 |
25 |
1544 |
108 |
421363 |
5087133 |
a little landscaping at Hell Vent. |
R503-3 |
22 |
26 |
1544 |
108 |
421362 |
5087133 |
. i.e. knocked over a chimney to expose gaping hole to
place osmo |
R503-4 |
22 |
26 |
1544 |
110 |
421362 |
5087133 |
Highlights on for deploying osmosampler and HOBO at Hell
Vent. |
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22 |
34 |
1542 |
87 |
421368 |
5087138 |
CANNOT deploy osmo at Hell. Will try next at Inferno. |
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22 |
40 |
1542 |
115 |
421384 |
5087168 |
transit to Inferno where a gaping hole was created last
night |
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22 |
44 |
1543 |
79 |
421380 |
5087164 |
Osmo sampler melted by vent fluid so sampler cannot work.
Decision to bring it back to surface for repair and put it down on the next
dive, if there is one. |
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22 |
49 |
1547 |
80 |
421388 |
5087143 |
Appears to be a problem with the elbow of the 7 function
arm. |
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23 |
12 |
1546 |
76 |
421379 |
5087158 |
P code GPS was out for 15 min but now back. 7 function
arm is sick but useable. Will put Hobo's at top of Inferno and Virgin. |
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23 |
16 |
1546 |
76 |
421378 |
5087161 |
HOBO #128 (green tape) to be deployed at Inferno. |
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23 |
19 |
1546 |
79 |
421374 |
5087160 |
Inferno |
R503-6 |
23 |
19 |
1546 |
76 |
421382 |
5087160 |
and associated junk pile |
R503-7 |
23 |
23 |
1543 |
98 |
421384 |
5087163 |
hobo temperature probe almost deployed at the top of Inferno |
R503-8 |
23 |
24 |
1543 |
97 |
421385 |
5087161 |
. heading ~96 |
R503-9 |
23 |
37 |
1543 |
55 |
420310 |
5084850 |
hobo probe might be in there (oh) |
R503-10 |
23 |
37 |
1543 |
55 |
420310 |
5084850 |
HOBO 128 deployed in small vent with well focused flow
on top of Inferno. |
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23 |
39 |
1544 |
346 |
421398 |
5087161 |
side view of hobo |
R503-11 |
23 |
41 |
1544 |
78 |
421388 |
5087168 |
Looking for site to take a gas tight bottle on top of
Inferno. |
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23 |
42 |
1540 |
196 |
421399 |
5087162 |
Cannot do GTB at Inferno without risking dislodging the
HOBO. |
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23 |
49 |
1543 |
298 |
421406 |
5087163 |
Weather warning from bridge. Will do highest priority
jobs first - HOBO, bacterial traps. |
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23 |
52 |
1543 |
69 |
421408 |
5087201 |
We arrive at Virgin. No chimney here now because it was
knocked over on |
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23 |
58 |
1546 |
48 |
421440 |
5087172 |
HOBO #130 to be deployed at Virgin Mound. |
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0 |
2 |
1546 |
27 |
421439 |
5087172 |
hobo probe at Virgin Mound, heading 27. Recovered HOBO
at Virgin. |
HOBO_R503-3 R503-13 |
0 |
10 |
1546 |
66 |
421438 |
5087176 |
HOBO probe in place at Virgin |
R503-14 |
0 |
3 |
1546 |
30 |
421439 |
5087174 |
HOBO #130 deployed at Virgin Mound. It is lying across
the most active of three fluid jets. Now going to Gollum Vent. |
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0 |
12 |
1545 |
210 |
421433 |
5087159 |
We arrive at Gollum and are greeted by a covey of bacterial
traps. |
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0 |
15 |
1545 |
198 |
423630 |
5087101 |
Three bacterial traps (tied together) have been deposited
inthe BioBox. |
Bactrps_R503-1 |
0 |
17 |
1545 |
193 |
423615 |
5087083 |
Three more traps, covered with snails being moved to the
BioBox. |
R503-15 |
0 |
18 |
1545 |
197 |
423615 |
5087083 |
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0 |
18 |
1545 |
195 |
423615 |
5087083 |
Second group of traps in the BioBox. |
R503-16 |
0 |
19 |
1545 |
196 |
423614 |
5087082 |
We have opened the BioBox to grab a set of three bacterial
traps for deployment at Gollum. |
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0 |
24 |
1545 |
163 |
421436 |
5087158 |
Bacterial trap #45 has been deployed at Gollum in an area
of shimmering flow wider than the traps themselves. |
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0 |
27 |
1545 |
186 |
421430 |
5087165 |
Frame grab of newly deployed traps at Gollum (#45). |
R503-17 |
0 |
27 |
1545 |
188 |
421430 |
5087165 |
Microbe trap deployment at Gollum. One trap only. |
R503-18 |
0 |
28 |
1543 |
311 |
421431 |
5087159 |
Now heading towards Inferno. |
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0 |
29 |
1544 |
55 |
421431 |
5087159 |
Hobo probes seen at Inferno. |
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0 |
32 |
1546 |
71 |
421397 |
5087160 |
One Hobo probe with 2 markers? in the right claw. |
HOBO_503-2 |
0 |
34 |
1525 |
260 |
421397 |
5087160 |
Time 0:34:37 dive is ended due to weather concerns. There
is a HOBO from Inferno in the right claw and an osmosampler with a #2 on
it in the left claw. |
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Dive
Summary: 1) OsmoSampler melted at Inferno 2) HOBO 128 deployed on top of
Inferno 3) HOBO 130 deployed at Virgin mound 4) Two bacterial traps recovered
and one (#45) deployed at Gollum 5) |
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