5.2 1999 Dive Dates, Locations and Tasks
ROPOS Dives R482 - R503
| Dive # | Launch time | Recovery time | Dive Time (in the water) | Bottom Time | NeMO 1999 Dive Locations and Tasks |
| R482 | (6-22) JD173 - | JD173 - 1530 | 1 hr 13 min | 0 hr | Didn't get to the bottom. Aborted at 400 m - fluid sampler not communicating |
| R483 | (6-23) JD174 - 1000 | JD174 - 1925 | 9 hr 25 min | 7 hr 42 min | Mkr-33 - 10 Samples: Suction, bio, gastights. Recovered Bactraps MTR and Osmo deployed in '98. Deployed 2 Fe OsmoAnalyzers. (Dive aborted, kink in tether). |
| R484 | (6-24) JD175 - | JD175 - 2023 | 10 hr 8 min | 6 hr 30 min | Mkr-33, Cloud Vent - 5 Samples: Suction, bio. Recovered MTR at Cloud and Time Lapse Camera at Mkr-33, both deployed in '98. (Dive, lost hydraulic fluid) |
| R485 | (6-25) JD176 - 0700 | JD176 - 1330 | 6 hr 30 min | 1 hr | Mkr-33 - 6 HFS Samples. This was the 2-part dive that we didn't change the Dive number for, even though Ropos came to the surface, therefore only 1 hour of bottom time. (Dive aborted, oil resevoir empty) |
| R486 | (6-26) JD177 - | JD176 - 0535 | 2 hr 32 min | 0 hr | Didn't get to bottom. (Dive aborted, hydraulic failure) |
| R487 | (6-26) JD177 - 1531 | JD177 - 1935 | 4 hr 4 min | 2 hr 30 min | Mkr-33, Cloud Vent - 15 Samples: HFS, gastight. Hydraulic fluid levels low, ROPOS went back to the cage and was pulled from Mkr-33 to Cloud by the ship. Did several HFS fluid samples of the plume in this fashion. |
| R488 | (6-27) JD178 - 0428 | JD179 - 0145 | 21 hr 17min | 18 hr 30 min | Mkr-33, Cloud, Snail, Nascent, MiniSnow, Mkr-N3,Milky, Magnesia, Imagenex - 33 Samples: HFS, suction, gastights. (Dive aborted, hydraulic oil pressure lost) |
| R489 | (6-29) JD180 - 0620 | JD180 - 0756 | 1hr 36 min | 0 | Didn't get to bottom |
| R490 | (6-29) JD180 - 1945 | JD180 - 2016 | 31 min | 0 | Didn't get to bottom. El Guapo was still plugged in after calibration, therefore transponders were not responding. (Dive aborted, navigation problem) |
| R491 | (6-30) JD181 - 0145 | JD182 - 1914 | 41 hr 29 min | 38 hr 55 min | Mkr-33, Cloud, Nascent, Old Flow, Old Worms, Magnesia, Imagenex - 28 Samples: Suction, bio, gastight, rocks. Video/photo survey of Cloud, Deployed BioOsmo Mkr-33, MTR & Vemco Mkr-N6, MTR Mkr-N41. Recovered MTR Nascent, bactraps Mkr-N4. (Dive finished) |
| R492 | (7-2) JD183 - 0855 | JD183 - 2324 | 14 hr 29 min | 11 hr 18 min | Joystick, Coquilles, Bag City - 14 Samples: Suction, Rocks, gastight, bio. Geology reconnaissance dive of '98 lava flow, south of area surveyed in '98. Eastern and western extents surveyed. Elevator recovered. (Dive ended to recover the elevator) |
| R493 | (7-3) JD184 - 0635 -on btm | JD184 - 1158 | 5 hr 23 min | 2 hr 13 min | Extension of Dive R492 - 2 Samples: rocks. Didn't go to any vents. (Dive aborted, lost telemetry, snap-loading on umbilical) |
| R494 | (7-4) JD185 - 0227 | JD185 - 1930 | 17 hr 2 min | 14 hr 11 min | Started south of SeaBeam anomaly, moving north to map limits of ,98 lava flow. Samples: 7 rock samples, bio, suction. No acoustic nav this dive - south net not working with north net. Fissure discovered! (Dive aborted, lost telemetry) |
| R495 | (7-5) JD186 - 0330 | JD187 - 0158 | 22 hr 28 min | 21 hr | Mkr-33, Mkr-109, Mkr-113, Castle, Joystick, Coquilles, Bag City, Fissure on SRZ - 37 Samples: HFS, Suction, gastight, sulfides, nisken. |
| Recovered Vemco and deployed Osmo at Mkr-33. Geological traverse of SRZ. (Dive aborted, telemetry problems) | |||||
| R496 | (7-6) JD187 - 1820 | JD188 - 1705 | 22 hr 45 min | 19 hr 18 min | Mkr-113, Rumbleometer freed from lava, Imagenex - 4 Samples: Bactraps, biology, rumbleometer. Recovered bactraps at Mkr-113, bio sample at Mkr-113, rock chips from rumbleometer. (Dive ended normally) |
| R497 | (7-8) JD189 - 0010 | JD189 - 1939 | 19 hr 29 min | 10 hr 9 min | Extensometers at NRZ, CASM - 21 Samples: suction, sulfide, bio, gtb. Elevator was recovered. At CASM collected 17 samples, VEMCO, hobo probes. One extensometer placed in elevator. (Dive aborted, sub lost power) |
| R498 | (7-8) JD189 - 2215 | JD190 - 0349 | 5 hr 39 min | 3 hr 34 min | Extensometer Recovery on NRZ - 3 remaining extensometers deployed in 98 were placed in elevator and all four were recovered. (Normal end of dive) |
| R499 | (7-9) JD190 - 1509 | JD190 - 2100 | 5 hr 51 min | 4 hr 4 min | Magnesia, Old Worms - 6 Samples: HFS, niskin. Also deployed osmosampler at Magnesia. (Dive aborted, Leak in HFS followed by hydraulic leak in ROPOS) |
| R500 | (7-9) JD190 - 2314 | JD191 - 1440 | 15 hr 26 min | 13 hr 20 min | Old Worms, FeO, Mkr-N41, Cloud, Mkr-33, Imagenex - 25 samples: HFS, suction gtb, niskin. Video mapping of Cloud. (Normal end of dive) |
| R501 | (7-10) JD191 - 2140 | JD192 - 1711 | 19 hr 31 min | 14 hr 14 min | Mkr-33, Crevice Vent ,and geologic traverse - 17 Samples: 13 rocks, suction, bio, Niskin. Deployed TLC at Mkr-33. (Normal end of dive) |
| R502 | (7-12) JD193 - 0030 | JD193 - 1520 | 14 hr 50 min | 12 hr 17 min | ASHES - 38 Samples: HFS, suction, gtb, niskin. Recovered HOBO at Hell and deployed one. Retrieved MTR at Gollum. Also recovered HOBO at Inferno. (Normal end of dive) |
| R503 | (7-12) JD193 - 2015 | JD194 - 0150 | 5 hr 35 min | 3 hr | ASHES - 3 Samples: bactraps and 2 hobos. Osmosampler deployed and melted at Inferno, Hobo deployed at Inferno and Virgin. Bactraps recovered and deployed at Gollum. Hobo recovered at Inferno. (Dive ended due to weather) |