Hawaii Ocean Time-series (HOT)
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HOT-116: Chief Scientist ReportChief Scientist: D. HEBELHOT 116 Cruise Report R/V Kaimikai O Kanaloa 19 Jun.- 22 Jun., 2000 Personnel List HOT 116: WOCE group: Fernando Santiago-Mandujano* Research Associate UH Lal Ratnapala Graduate Assistant UH Mark Valenciano Electronic Technician UH Don Wright Research Associate UH JGOFS group: Dale Hebel Chief Scientist (co-PI JGOFS) UH Louie Tupas* Scientist (co-PI JGOFS) UH Lance Fujieki Computer Specialist UH Colleen Allen Research Associate UH Matt Church Visiting Graduate Student UH Markus karner Scientist UH Jennifer Brum Student Assistant UH Andrew Thurber Volunteer UH Associated projects Tom Gregory Research Associate UH Jeremiah Johnson Research Associate UH STAG Steve Poulos Electronic Technician UH-UMC Dave Gravatt Deck Technician UH-UMC * Watch Leader Itinerary (approximate HST): ------------------------------ Monday, 19 June 0900 Departed Snug Harbor 0930 Fire/abandon ship drill, science meeting 1145 Arrived Kahe Pt. (Sta. 1) 1200 Weight cast (1000 m) 1245 PRR/TSRB casts 1335 s1c1 1440 Departed Kahe Tuesday, 20 June 0015 Arrived Sta. Aloha (Sta. 2) 0030 Net tow 0105 Net tow 0150 Began sediment trap deployment 0225 Completed sediment trap deployment (22o 44.5'N, 157o 58.3'W) 0300 s2c1(200m) 0400 s2c2 (WOCE deep) 0900 s2c3 1000 Net tow 1035 Net tow 1110 PRR-600/TSRB cast 1200 s2c4 1255 Net tow 1325 Net tow 1500 s2c5 1800 s2c6 2105 s2c7 2205 Net tow 2235 Net tow Wednesday, 21 June 0000 s2c8 0055 Net tow 0150 Net tow 0205 Go-Flo cast 0305 s2c9 0440 CTD boom incident 0500 s2c10 0710 Deployed primary productivity array (22o ?N, 158o?W) 0800 s2c11 1000 Net tow 1035 Net tow 1100 s2c12 1200 PRR-600/TSRB cast 1300 Net tow 1400 s2c13 1505 in situ pump (in) 1620 in situ pump (out) 1700 s2c14 1900 Recovered PP array 2000 s2c15 2300 s2c16 (second WOCE deep cast) Thursday 22, June 0215 CTD on deck 0220 Transit sediment traps strobe 0300 Visual sighting of ST strobe light 0610 Ch. Eng. reported strb SCR repaired 0645 Initiated trap retrieval 0730 Completed sed. trap recovery/transit Honolulu 1730 Arrived Snug Harbor Friday 23, June 0800 Offloading HOT 116 1100 Completed offloading Narrative: ---------- HOT 116 was conducted aboard the R/V Kaimikai O Kanaloa (KOK), 19 to 22 June, 2000. Captain Hayes was the master of the vessel and Dale Hebel chief scientist. There was a total of 16 participants in the scientific party composed of 4 WOCE, 7 JGOFS, 3 ancillary and 2 STAG. We departed Snug on 19 June occupying stations at Kahe Pt. (sta. 1), and Station ALOHA (sta. 2). All scheduled work was completed and all samples collected with the exception of two net tows due to engine problems. CTD operations were conducted at stations 1 & 2. One ~1000 m CTD cast was conducted at station 1, with 14 ~1000 m CTD casts at Station ALOHA and 2 near-bottom deep casts (~4750 m). S2c3 was aborted due to a faulty fluorometer, which stopped working for no apparent reason. Other over-the-side operations included 3 light casts, 10 net tows, 2 in situ pumping operations, 1 Go-Flo cast, floating sediment traps and productivity operations. All operations were routine with the exception of additional net tows for C. B. Nelson, a rosette Go-Flo primary productivity experiment comparison, collection of atmospheric particulate material, in situ pump operations and rosette/go-flo primary production comparison. The underway/continuous thermosalinograph, fluorometer and ADCP were operable and functioned properly. No continuous pCO2 were measured on HOT 116 as well as limited meterological instrumentation. Overall the weather was partly cloudy with moderate to rough seas. The cruise schedule was very similar to HOT-111 with the exception of engine problems, net tow cancellation, s2c3 fluorometer problem; and inclusion of HPLC cast with the final WOCE deep cast on HOT-111. Therefore, for those interested please see HOT-111 Cruise Report for generic daily activity narrative (applicable dates Feb. 1-4, 2000). Weather: -------- HOT 116: The weather was variable with partly cloudy skies and moderate-rough seas at the beginning of the cruise and moderate-strong winds decreasing to moderate conditions towards the end. Below is listed the cruise bridge log descriptions and the various values representing the range for that day. Under wind, sea, and swell there will be two designations, the first is the direction (in degrees), the second for wind is in kts, sea in Beauford force, and swell in feet, barometer in inches of Hg, temp oC (dry bulb) and clouds in tenths. Day Date Wind Sea Swell Barometer Temp Clouds Mon 19 June 085-125,20-22 085-125,3 90-120,3-4 29.96-30.02 73-81 3 Tues 20 June 085-100,17-18 080-100,3 310,4-5 29.97-30.04 69-79 2-7 Wed 21 June 070-120,15-25 070-120,3-4 110-310,5-10 29.97-30.02 71-80 3-8 Thur 22 June* 100-260,5-22 100-260,1-4 110-310,2-6 29.97-30.05 72-79 4-8 *Three entries (0200, 1000 & 1400 hrs) Equipment and methods: ---------------------- All standard equipment functioned properly with the exception of the flash fluorometer. Sub component programs: ----------------------- Investigator: Project: ------------- ---------- Christopher Winn (UH) DIC, pH, Alk., pCO2/UH Bob Bidigare (UH) HPLC pigments/UH Michael Landry (UH) zooplankton dynamics/UH Ancillary programs: ------------------- Investigator: Project: ------------- ---------- Charles Keeling (SIO) CO2 dynamics and intercalibration/SIO Paul Quay (UW) DIC and 13C/UW John Porter aerosols/UH Abbott/Letelier optical measurements/OSU Students: --------- Matt Church DOC/Archea dynamics Others: ------- Dale Hebel/Louie Tupas EOC, 1o prod. comparison/UH Karin Bjorkman phosphorus experiments/UH |