Dive R503  
      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.  
      Dive Configuration: Suction Sampler, BioBox with 4 microbial trap arrays & 2 high temperature HOBOs. NO still camera.  
      Note: Nav fixes not edited in the logs. All fixes were logged, regardless of accuracy. Use the dive plots to determine actual positions.  
  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.  
21 37 1544 254 421333 5087131 ROPOS on bottom.  
21 38 1544 80 421330 5087119 good fix. Looking for Hell Vent.  
21 39 1544 74 421350 5087128 At Hell Vent to deploy osmosampler.  
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.  
22 14 1544 28 421364 5087133 Released osmosampler's probe at active vent near top of Hell Vent. Now needs to be positioned.  
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.  
22 34 1542 87 421368 5087138 CANNOT deploy osmo at Hell. Will try next at Inferno.  
22 40 1542 115 421384 5087168 transit to Inferno where a gaping hole was created last night  
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.  
22 49 1547 80 421388 5087143 Appears to be a problem with the elbow of the 7 function arm.  
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.  
23 16 1546 76 421378 5087161 HOBO #128 (green tape) to be deployed at Inferno.  
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.  
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.  
23 42 1540 196 421399 5087162 Cannot do GTB at Inferno without risking dislodging the HOBO.  
23 49 1543 298 421406 5087163 Weather warning from bridge. Will do highest priority jobs first - HOBO, bacterial traps.  
23 52 1543 69 421408 5087201 We arrive at Virgin. No chimney here now because it was knocked over on  
23 58 1546 48 421440 5087172 HOBO #130 to be deployed at Virgin Mound.  
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.  
0 12 1545 210 421433 5087159 We arrive at Gollum and are greeted by a covey of bacterial traps.  
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  
 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.  
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.  
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.  
0 29 1544 55 421431 5087159 Hobo probes seen at Inferno.  
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.  
       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)