HOT-19 Cruise Report SSP Kaimalino 23-27 July 1990 Personnel List: --------------- Chris Winn CS Ricardo Letelier GOFS John Dore GOFS Dave Rose GOFS/REU Ian Gilbert GOFS/REU Stewart Reid WOCE Geore Parrish WOCE Max Cremer WOCE Jef Snyder WOCE Marc Rosen GOFS/WOCE Chuck Stump GOFS/U.W. Oxygen Angela Hardesty WOCE/U.H. Hilo Itinerary (approximate local time): ----------------------------------- 23 July 0800 Depart Snug Harbor 1200 Arrive Kahe Pt 1500 Depart Kahe Pt 24 July 0300 Arrive HOT-site: deploy sediment traps 0600 WOCE deep casts 4500m 1000 WOCE cast 2500m 1500 Commence 1000m cast on 3hr. intervals 25 July 0130 GoFlo primary production cast 0430 Deploy in situ array 26 July 0000 Recover sediment traps 0200 Depart for Snug Harbor Narrative: ---------- HOT-19 departed Snug Harbor at 0900 aboard the SSP Kaimalino on 23 July 1990. We returned to Snug Harbor at 2100 on 27 July. Kahe Point was occupied on the outbound transit and approximately 72 hours was spent at Station ALOHA. WOCE & JGOFS Sampling The WOCE deep cast and the CTD burst sampling was obtained on HOT-19. CTD and XBT Operations Although there were no serious problems with CTD operations on HOT-19, there were several minor problems with the pylon. During the cruise, pylon positions 4, 12 and 18 were removed from service. Also, the flash fluorometer trace was somewhat noisier than usual, apparently due to the fluorometer cable which was showing signs of corrosion. XBTs were dropped en route to Station ALOHA. Primary Production and Sediment Trap Measurements Primary production was measured in situ for 12 hours. No on-deck incubations were conducted. Sediment traps were deployed and recovered without problems. Optical Measurements Optical casts were completed at Kahe Point. Ancillary projects Samples were dissolved gases were collected for Charles Keeling of Scripps and for Steve Emerson and Paul Quay of the University of Washington. Samples were also collected for UH researchers Lisa Campbell and Daniel Vaulot and UH graduate students Peter Sedwick, Ricardo Letelier and John Dore. REU (Research Experience for Undergraduates) students Dave Rose and Ian Gilbert also obtained samples for their work.
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Last modified: January 00, 1998