Dive R496  
      Dive Plan: Rumbleometer recovery. Tube worm grab and bacterial trap recovery from Mkr-133 with portable BioBox sitting at Mkr-113  
      ROPOS Configuration: All the bells and whistles necessary to recover the rumbleometer.  
      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
18 18        ROPOS in the water.  
       Ballast is a little light. Coming back up to adjust it  
18 38        ROPOS back on deck. Time is 1859 GMT (UTC)  
19 17 8 28 423035 5083964 ROPOS in water loaded for bear at 19:15.  
       19:21 electrical power to lab lost. ROPOS at 286m. Everything shut down. Back up and running at 19:44. No apparent damage.  
20 49 1492 154 423650 5086742 Cage stopped at 1492 m depth. We have come to wreak havoc.  
20 51 1516 163 423650 5086742 ROPOS on bottom. Moving ship over top of rumbleometer. Starting videos.  
21 0 1518 174 423709 5086781 Rumbleometer in sight.  
21 1 1519 118 423713 5086765 3712, 6769 good fix at rumbleometer.  
21 1 1519 117 423713 5086765 first contact with rumble-o-meter R496-4
21 1 1519 112 423713 5086765 another one R496-5
21 2 1520 106 423713 5086766 rumble-o-meter with fish, hold the tartar R496-6
21 4 1519 173 423723 5086733 Anchor attached last year in sight.  
21 5 1519 20 423716 5086754 good fix over anchor.  
21 8 1519 83 423639 5087271 one for the photo album R496-7
21 13 1520 111 423708 5086742   R496-8
21 16 1521 158 423745 5087474   R496-9
21 16 1521 164 423695 5086761   R496-10
21 18 1521 173 423710 5086772   R496-11
21 18 1521 172 423710 5086772 Line connected to free leg.  
21 18 1522 171 423705 5086768   R496-12
21 22 1521 200 423709 5086771   R49613
21 37 1522 191 423696 5086779   R496-14
21 40 1522 175 423708 5086772   R496-15
21 48 1521 179 423706 5086769 threaded the needle R496-16
21 54 1522 149 424490 5086986 why ask Y"?" R496-17
21 57 1522 148 423704 5086772 Give a man enough ROPOS . R496-18
21 56 1522 144 423701 5086775 During the past half hour have managed, with difficulty, to get the large yellow cable around the leg of the rumbleometer.  
21 57 1522 150 423617 5086954 ….and he'll probably hang himself R496-19
22 0 1522 146 424285 5087797 the missing link R496-20
22 1 1522 150 423638 5087267 woo hoo ho! R496-21
22 1 1522 150 423638 5087267 Snap hook attached to end of yellow cable.  
22 3 1522 147 423744 5087475   R496-22
22 6 1511 310 424494 5086982 Returning to cage unreeling gray line.  
22 7 1502 220 423694 5086786 ROPOS is in its cage.  
22 24 1451 231 424331 5087472 OK a little brinkmanship R496-23
22 23 1451 239 423724 5086754 Continue to raise cage in order to get gray line out to double red tape marks. Line accidentally in the cutter but got out OK.  
22 34 1451 311 423717 5086767 hooked to the bottom of the cage R496-24
22 34 1451 314 423667 5086915 Cage end of line drooped attempting to snap hook to bridle.  
22 48 1451 360 423722 5086766 OK this time for sure R496-25
22 49 1451 5 423722 5086767 Snap hook recovered with difficulty and attached to ring on bridle.  
22 50 1452 6 424269 5087996 Keith S. asks to move the ship 20 meters at 10 degrees  
22 55 1451 320 423728 5086765 waiting for the ship to move  
22 58 1448 270 423668 5086704 reeling in cage at 4 meters/min  
23 4 1435 336 424482 5088083 Hook came of off where it was hooked to the cage.  
23 6 1435 348 423703 5087207 The hook with a safety clip was somehow twisted, causing the catch to open, and the hook fell off. Now, we have to go back to the seafloor, try to pick up the hook on the end of the line and re-attach it to the chain beneath the cage. Cage now descending.  
23 10        Visible particle plume while cage descends, at 1470 m  
23 14 1492 358 423734 5086750 Near the bottom, ROPOS ready to come out of cage, when we saw the spectra line floating up in the water. The line is buoyant, so one end is on the rumbleometer, and the other is on the hook on the seafloor, with a loop floating up in the water column.  
23 18 1492 272 423492 5087295 A-l ROPOS telemetry has died. Network down.  
23 21 1492 272 423386 5087692 asked the ship to move 40 meters west  
23 43 1401 22 423703 5086779 Still attempting to get vehicle telemetry back up. Vehicle is in cage, and line is not attached.  
23 46 1401 63 423708 5086797 Bill is working the cube. The telemetry is back up. Could there be a connection?  
23 55 1478 127 423451 5087613 Saw the spectra line again.  
23 56 1472 115 424308 5088104 Asking the ship to move 20 meters West. Stern of ship is currently about 10 meters W of rumbleometer.  
23 58 1473 284 421212 5086968 Situation: Hook was dropped 30 meters brng 010 from the rumbleometer, with line floating in between. Plan :Come down W of instrument, drive up to it, grab line loosely in the claw and drive up, letting the line slip until the hook is within reach.  
0 5 1517 121 423710 5086686 We are back on the seafloor, looking for the rumbleometer. R496-26
0 6 1519 119 423694 5086769 Nav puts us 24 meters W of Rumble  
0 9 1522 211 423712 5086775 Back at rumble coming at it from the North. R496-27
0 12 1520 180 423715 5086754 Grabbing the line attached to the rumbleometer R496-28
0 14 1506 127 423862 5086426 line is slipping through the claw as we pull it up  
0 14 1496 126 423700 5086759 line slipping through the claw R496-29
0 22 1463 127 423696 5086776 Recovering dropped line and hook. Tense moment. Halibut for diner. Jell-O for desert.  
0 24 1453 122 423694 5086777 Ten meter mark just slipped through claw.  
0 25 1449 124 423696 5086777 Another marker in claw, 3 meters from the last one.  
0 28 1438 124 424251 5087395 Nearing end of line.  
0 30 1428 124 424048 5087934   R496-30
0 30 1428 125 424048 5087934 At the end of the line. Preparing to grab the hook end.  
0 32 1430 115 423701 5086763 What is it? R496-31
0 34 1429 126 423705 5086764 It was an unusual jellyfish that we were looking at from one end and couldn't identify it at first. It was black in color.  
0 37 1428 134 423708 5086764 He's grabbed the hook end.  
0 39 1427 127 423709 5086762 The hook is in both hands, just handed of to the (left?) hand.  
0 39 1427 131 423709 5086761 Hand of off hook from 7-function to 5 function.  
0 44 1431 99 423769 5086919 Ropos back in the cage.  
0 45 1431 135 423608 5086909 Drooped the hook. Puled out of the arm by a big surge.  
0 48 1430 33 423642 5087482 Moving the ship 64 meters. Will try to retrieve the hook.  
1 1 1434 319 423726 5086750 At location of hook drop.  
1 7 1490 300 423697 5087462 ROPOS is out of the cage for hook recovery, take 3.  
1 9 1519 354 423731 5086758 We have a good fix on ROPOS.  
1 11 1521 248 423732 5086746 Rumble-o-meter back in sight.  
1 12 1519 298 424492 5088003 Line in the claw one more time.  
1 15 1492 306 423645 5087284 Pulling line through claw as before.  
1 16 1479 293 423722 5086762 Recovering line and hook for second time. R496-32
1 21 1438 300 424479 5086938 Nearing end of line again.  
1 22 1428 304 423744 5086709 At the end of the line. Preparing to grab the hook.  
1 25 1434 299 423685 5086923 Both claws on the hook once again.  
1 26 1432 304 423716 5086752 Hand of off hook.  
1 33 1440 326 423725 5086762 Ropos back in cage.  
1 58 1406 244 423747 5086756 Hook re-attached to cage, pulled with the winch, tension went up, then slack, then lifting bridle released from cage. Now we are going down to look at the rumbleometer.  
2 0 1406 242 424139 5086273 Moving the stern of the ship to about 25 m west of the rumbleometer.  
2 20 1406 168 423679 5086757 P-code of, so ship position not stable enough to go out of cage. Waiting to se if P-code comes back on.  
2 45 1406 282 423688 5086754 P-code is back, so we can venture out of the cage.  
3 6 1522 125 423627 5087288 Rumble base. Where is the rest? Stay tuned. R496-33
3 4 1517 129 423687 5086768 On the bottom. Collapse area, pillars. Found the weight, lost the handle. The Rumbleometer is FREE! The weight doesn't show much effect of the flow on it. Mostly it is sitting on top of the flow. Back edge appears to be overlain by the flow.  
3 9 1516 140 423622 5087270 Rubble on top of weight may have been from breaking it away from the lava. Found the line that now holds the Rumbleometer.  
3 12 1481 113 424468 5086951 Going up the rumbleometer line. it is hanging in the water sideways.  
3 14 1466 210 424216 5088122 Yes! Rumbleometer floating in water column from anchor. R496-34
3 17 1470 138 423714 5086741 Survey of it to see what lines are where. Too late to cut it, because of darkness approaching. Will try to release it tomorrow AM.  
4 25 1518 96 423780 5087057 On the bottom, in lobate flows that look fairly young. Close to Mkr-33.  
4 27 1519 71 423802 5087066 Collapse area in lobates. Flat sheets now with staining on fractures.  
4 29 1520 117 425114 5087076 At Mkr-33. Going to pick up BioBox.  
4 39 1525 272 423854 5087040 picking up BioBox that is located near the elevator debris.  
4 45 1525 274 424398 5087491 Picked up box, tried Wallace maneuver now heading to mkr-113. Will be doing an Imagenex line during transit.  
4 48 1525 274 423865 5087082 Testing Imagenex to see if it will work with BioBox in the arm. Resting BioBox on frame.  
4 59 1504 255 424373 5087504 Moving ship to north end of Imagenex line W1 from Mkr-33 site. We will do this line south, then go over to Mkr-113 to collect a bio sample, and then will resume the Imagenex survey.  
5 20 1496 348 423710 5087682 We're actually going to be starting Imagenex line W2 from the north instead of W1. We'll do W1 later.  
6 23 1499 182 423554 5086727 At 05:37 we started at the north end of Imagenex line W2, southbound.  
7 15 1499 217 423555 5085892 End Imagenex line W2 (south end). Ship will now go over to Mkr-113 to collect a bio sample into the portable bio box.  
7 42 1521 21 423326 5085385 ROPOS on the bottom near Mkr-113 (not there yet)  
7 46 1522 86 423356 5085936 We've spotted the Mkr-113.  
7 47 1524 154 422686 5084942 ROPOS on the bottom at Mkr-113.  
7 49 1524 154 423380 5085929 Placing the portable BioBox near Mkr-113 in order to put samples in it.  
7 50 1524 156 423362 5085932 One of the corks in the BioBox is rolling around in the bottom of the BioBox, we think.  
7 52 1524 153 423371 5085939 we can see a group of new tube worms right in front of us, as well as Craig's bacterial traps.  
7 53 1524 146 423369 5085937 We're trying to open the portable BioBox now  
7 54 1524 145 423411 5086201 We have opened the BioBox.  
7 54 1524 148 422799 5085391 The cork from the center of the BioBox is indeed floating about the BioBox.  
7 56 1522 152 423377 5085937 We can se some of the blue protozoan mat, as well as a ton of limpets and maybe some snails and other gastropods.  
7 56 1522 217 423378 5085941 Mkr-113 R496-35
7 56 1522 204 423378 5085941 Mkr-113. Highlights on. Photo-1 - 2
7 58 1524 210 423388 5086328 We are now sitting right near the marker, to pick up trap # 20 and 21.  
7 58 1524 212 423808 5085957 Highlights off.  
7 58 1524 210 423388 5086328 Bacteria traps at Mkr-113.deployed in 98 R496-37
7 59 1524 213 423384 5085946 Picking up traps. They are covered in polynoids, limpets, and other worms. Bactrp-20_496-1

Bactrp-21_496-2
8 0 1524 211 423292 5085628 Grabbing traps at Mkr-113- they're anaerobic! R496-38
8 3 1524 157 423380 5085940 Placing the traps in the portable BioBox.  
8 3 1524 156 422896 5085766 The limpets seem to be settled only around the black area on the bacterial traps.  
8 4 1524 158 425309 5085954 The traps are in the box.  
8 5 1524 157 423666 5085590 Heading back over to the exact same area to take a good tube worm grab.  
8 6 1523 195 423370 5085933 Location where bacteria traps used to be R496-40
8 6 1524 214 423372 5085933 Mkr-113 tube worms R496-41
8 7 1524 203 423377 5085934 Getting ready to grab tube worms at Mkr-113 R496-42
8 7 1524 204 422654 5085400 Preparing to take the tube worm grab.  
8 8 1524 202 423373 5085930 3373 5930 good Fix.  
8 8 1524 203 423373 5085930 We've taken a grab Bio_496-3
8 8 1524 201 423373 5085930 Tube worm grab at Mkr-113 R496-43
8 11 1524 130 423371 5085934 We have placed the tube worms in the BioBox.  
8 10 1524 132 423371 5085932 Placing tube worms in portable BioBox on top of bacteria traps at Mkr-113 R496-44
8 11 1524 121 423371 5085934 We are going back for more worms, but they belong to the same sample number, R496-3.  
8 12 1521 340 423372 5085934 We are approaching from the other direction this time for the tube worm grab.  
8 13 1524 333 423371 5085930 Grabbing again at Mkr-113.  
8 15 1524 8 422477 5085322 Placing this second tube worm grab in the portable BioBox.  
8 16 1524 5 423462 5085601 Going back for a third grab. but if there aren't enough, we'll move a bit to get more.  
8 17 1524 282 423376 5085934 Jean thinks she sees a sea spider (a pycnogonid).  
8 17 1524 282 423376 5085934 Third tube worm grab at Mkr-113 with a sea spider nearby R496-45
8 18 1524 279 423379 5085930 We just got the third grab, about a foot or two along the crack, facing 280.  
8 19 1524 318 423371 5085932 placing third grab in BioBox and Jean says she is very content!  
8 20 1524 318 423371 5085932 We're closing the portable BioBox.  
8 21 1524 356 423371 5085933 We took a total of three tube worm grabs from Mkr-113 - we are now latching closed the portable BioBox.  
8 25 1524 352 423378 5085931 The portable BioBox is closed. I think that's a record.  
8 26 1524 57 423372 5085933 The box is indeed closed - with a twist.  
8 27 1524 60 423371 5085931 Time for Imagenex. Bill is now in charge.  
8 28 1524 57 423369 5085931 We're stowing the BioBox away before we begin Imagenex.  
8 42 1501 189 423373 5085922 ROPOS driving south on extension of W5 (south of Mkr-113)  
8 43 1501 183 423372 5085888 Now moving ship west 120 m to southern end of Imagenex line W3.  
9 3 1499 5 423488 5085926 0900 - Start line W3 from southern end going north.  
10 38 1496 85 423490 5087405 End of southern part of Imagenex line W3. Ship moving 120 m east to line W1.  
10 53 1496 180 423613 5087127 Start of Imagenex line W1 (southern part), driving south.  
12 52 1498 272 423604 5085904 End of Imagenex line W1 (south end). Ship moving 180 m west to south end of line W4.  
13 5 1498 3 423430 5085900 Begin Imagenex line W4 (south end) heading north.  
14 33 1501 218 423432 5087130 End of Imagenex line W4 (south end). Ship now moving over to Rumbleometer site to release it from its anchor.  
14 52 1452 147 423468 5087042 The Cage R496-47
15 36 1458 99 422762 5087918 Ship stopped. Heading down towards the rumbleometer. Have to do some BioBox management before we cut the cord and release the rumbleometer. Start taping.  
15 39 1471 131 424122 5086416 Arrived at the rumblometer. Highlights on.  
15 40 1464 135 423708 5086739 Rumbleometer hanging in the deep blue sea. R496-48
15 41 1463 149 423700 5086743 rumbleometer photo 3
15 41 1461 155 423700 5086743 rumblometer photo 4
15 41 1463 156 423706 5086738 another rumbleometer photo 5
15 42 1462 175 423703 5086757 Rumbleometer again. Photo 6
15 43 1465 129 423699 5086757 Trying to figure out which is the main cord connecting the rumbleometer to the seaflor. Decided it is the vertical cord - will cut it about 15-20 meters up from the bottom in the water column. Photo 7
15 48 1519 108 423726 5086620 Bottom is in site - see the anchor.  
15 52 1522 112 423695 5086753 Biobox management - transferring the BioBox from the 7-function to the 5-function arm. Back to the 7 and Grabbing the BioBox on the handle with the 5.  
16 2 1514 69 423709 5086752 Moving up the rope, positioning to cut it.  
16 4 1512 302 425289 5086874 Attempting to cut the rope. Ned to go back to the cage for tether management first.  
16 13 1510 62 423710 5086764 Cut the rope! The rumbleometer is released.  
16 13 1509 104 423518 5087228 Cutting the cord. The rumbleometer is on its way to the surface R496-50
16 15 1489 282 423683 5086734 Going back to the cage.  
16 17 1492 233 423683 5086734 In the cage. Coming up.  
17 8 1 156 424216 5087322 ROPOS on deck at 17:05  
       Dive Summary: THE RUMBLEOMETER WAS FREED FROM THE 1998 LAVA FLOW!! Also recovered bactraps and tube worms from Mkr-113 and placed them in BioBox.