We are currently rounding Kaena Point en route to St ALOHA after completing all work at St Kahe. Sailing under grey skies with occasional showers, winds 15-20 knots from the east, seas are 4-6 ft.
Dan
Event Log:
October 16, 2019 (HST)
0630 Ship drills
0800 underway
1038 arrive St Kahe
1050 weight cast to 500m
1116 end cast
1135 begin Hyperpro cast
1215 end cast
1238 begin S1C1 CT’s cast to 1000m
1353 end cast
1405 transit to St ALOHA
1410 stopped to finish sampling ahead of rain squall
1440 resumed transit
On station at ALOHA with winds 15-20 Kts from the NE. Seas 8-10 feet.
Rough conditions required adjustments to our schedule. Wire walker, sed traps and PP array deployed but O2 incubation experiment dropped due to on deck sampling conditions. Deep cast completed within 20 m of bottom before maxing out allowable wire tension. One bottle was lost on deployment when rosette touched side of ship but able to proceed with cast. Lost time in schedule due to long deep cast. Made up by dropping one open 1000 m cast. Hyperpro and net tows not completed due to modified cast schedule. PP array recovered and processed. Sea glider deployed.
Daily Event log not included in this report.
HOT-316 continues operations at St. ALOHA under cloudy skies with winds from the east at 15-20 knots and seas of 6-8 feet.
We have kept to schedule today and were able to deply the gas array and Hyperpro. The Oceanus crew have done a great job of getting the ctd/rosette safely in and out of the water under challenging conditions. With the rolling ship and small clearances, the rosette frame paint has incurred seceral chips from the tag line hooks. We were also able to complete the second deep cast to within 7 m off the bottom. The floating arrays have remained close to station which will minimize transit time for recoveries.
Event Log:
16 October 2019
2216 Arrive at edge of St. ALOHA circle
2318 Wirewalker deployed at 22 39.286'N, 158 01.843'W
17 October 2019
0006 Sediment traps deployed at 22 40.041'N, 158 00.952'W
0200 Begin S2C1 CTD cast to 200m. Secondary flourescence peak at 130 db
0226 End cast
0505 PP array deployed at 22 43.322 N, 158 04.802 W
0538 Seaglider deployed at 22 43.322 N, 158 04.162
0643 S2C2 CTD near bottom CTD cast. CTD hit bottom of ship on deployment
0829 Cast terminated 30 m from bottom because tension over 3000 lb limit
1026 End of cast. Bottle 20 lost from frame. Other bottles downward
1312 Begin S2C3 CTD cast to 1000m
1423 End cast
1537 Begin S2C4 CTD cast to 1000m. Dropped one cast to get back on schedule.
1643 End cast
1814 PP array re covered at 22 44.785N,158 03.568 W
1950 Begin S2C5 ctd cast to 1000m
2104 end of cast
2235 Net tow at 22 46.702 N, 157 58.576 W
2318 Begin S2C6 ctd cast to 1000m
18 October 2019
0015 End cast
0156 Begin S2C7 ctd cast to 1000m
0248 end cast
0435 gas array deployed at 22 45.985 N, 157 55.649 W
0502 start S2C8 ctd cast to 1000m
0627 end cast
0800 begin S2C9 ctd cast to 1000 m
0904 end cast
1058 begin S2C10 ctd cast to 1000 m
1203 end cast
1235 net tow
1301 net tow
1338 Hyperpro cast
1407 end Hyperpro cast
1417 squall on station
1420 begin S2C11 ctd cast to 1000 m
1513 end cast
1658 begin S2C12 ctd cast to 1000 m
1803 end cast conductivity sensor replaced due to bad reading. Possibly damaged during heavy landing on deck
1955 begin s2c13 ctd cast to 1000 m
2053 end of cast
2121 Transit ot pump tanks. Unexpected as holding tanks filled faster than anticipated.
2255 net tow
2354 Begin S2C14 near bottom ctd cast
19 October 2019
0134 Reached target depth of 4801 m. 7m off bottom
Currently en route to St Kaena after completing operations at ALOHA. Winds and seas continue at 15-20 knots from the east and 6-8 feet.
Bridge says we are on track to arrive Pier 35 at 0730.
Event Log:
19 October 2019
0312 end of cast
0329 start optics cast
0623 recovered gas array at 22 52.345 N, 157 53.971 W.
0746 recovered sediment trap at 22 49.495 N, 157 57.417 W.
0826 recovered wire walker at 22 47.767 N. 157 58.381 W.
1133 Hyperpro cast
1221 begin S52C1 ctd cast to 200 m
1326 end of cast. 5 cycles
1455 Transit to St. Kaena--