Scripps LOG



June 18 - June 25, 1999 vol. 36 no. 24


Calendar

Friday, June 18

DOCTORAL DISSERTATION DEFENSE - Cleridy Lennert-Cody will defend her doctoral dissertation entitled "Phytoplankton and High-frequency Internal Waves: Predictable Patchiness Through the Water Column" in 4500 Hubbs Hall at 2 p.m. The public is invited.

Tuesday, June 22

COFFEE WITH CHARLIE - The next "Coffee with Charlie," a monthly get together with Director Charlie Kennel, will be at 10 a.m. in 4500 Hubbs Hall. These are intended to be informal discusScrippsns where you can come in, relax, and enjoy a leisurely morning with the Director. Come on by and enjoy some coffee & bagels! (Jill Ives, x43948)

TOASTMASTERS - "The Pier Review" meets every Tuesday from 12 noon - 1p.m. in 114 Scripps Building. It's a friendly, supportive place to develop your speaking skills and confidence. We welcome guests! Come check us out. Contact Elaine Parent, 558-0122 or eparent@ucsd.edu for details.

Thursday, June 24

"BENEATH THE ANTARCTIC ICE" - Peter Brueggeman, Scripps Library director, will present his photo journal of his expedition to the Antarctic. Peter recently accompanied Norbert Wu (Scripps graduate) on an expedition to examine and photograph the sealife and unusual conditions under the Antarctic ice. Wu is a world-famous underwater photographer. A portion of the results were featured in the February issue of the National Geographic magazine. Come to Tom Hamm's Lighthouse restaurant (Harbor Island) at 6:30 p.m. Dinner and program: $30. Call either Dave Horrigan, (760) 634-4947 or Joe Hughes, (619) 698- 4530, for reservations.

Notices

KECK CENTER DEDICATION - Come one, come all as we christen The W. M. Keck Foundation Center for Ocean Atmosphere Research (the wooden buildings by Nierenberg Hall) on June 30, at 11 a.m. After the brief ceremony, you are all invited to an all-hands yummy luncheon in the courtyard. If at all possible, please walk up. (Jill Ives, x43948)

JOHN D. ISAACS SCHOLARSHIP WINNER - Sarah Lynette Reiver, a senior at La Quinta High School, has been named the winner of the prestigious John D. Isaacs Memorial Sea Grant Scholarship. This $10,000 award recognizes superior research in marine science or technology and seeks to encourage students to pursue further studies in marine science. Reiver's winning project was, "Determining the Nutritional Requirements for Optimizing Growth of Emiliania huxleyi."

RETIRING IS CONTAGIOUS! Don't forget: Natalie Neal's retirement shindig, June 28, 12:30 p.m. in 114 Scripps Administration Building; and Matt Unwin's retirement party, June 30, 3 p.m., in T-29. (Jill Ives, x43948)

MSDS SHOP CLOSED FOR INVENTORY - The Marine Science Development Shop will conduct inventory beginning June 23 and continuing through June 30. No material will be sold----no exceptions. (Matt Unwin, x42941)


Ship News

R/V Roger Revelle, Weekly Scientific Report, Hahnaro Leg 6, 13 June 1999: The third in a sequence of R/V Roger Revelle cruises in the Sea of Japan (known as the East Sea in Korea) is nearly completed. The principal activity is deployment of an array of 25 pressure-sensor-equipped inverted echo sounders (PIES) and 13 current-meter moorings (CM) in the Ulleung Basin, which covers roughly a 250-km square region between Korea and Japan. Thanks to a very efficient and helpful ship's crew, a well-equipped ship, and nearly ideal weather conditions (plus a little help from Lady Luck), we are well ahead of schedule: after one week at sea we've successfully deployed all but three PIES and one CM. Prior to deployment, all CM releases have been wire-lowered to 1000 m to pretest their performance at cold temperatures and great depths. Following each deployment we acoustically tracked each mooring on the bottom and communicated with it to verify its performance. We've also carried out two test deployments of a new model PIES (with extra help from the Chief, P. Mauricio in fabricating a part). An XBT has been launched after each PIES deployment. This joint project between the Univ. of Rhode Island (URI, Watts and Wimbush) and the Naval Research Laboratory (NRL, Teague) is benefiting in several ways from collaboration with Korean and Japanese oceanographers at the Korean Ocean Research and Development Institute, (KORDI, Suk) and the Research Institute for Applied Mechanics at Kyushu University (RIAM, Yoon). Incidentally, the expedition name itself, "HAHNARO," is a Korean word meaning "all pulling together." The full CM array of 18 moorings includes four Korean moorings (from KORDI) and one Japanese mooring (from RIAM). Moreover, two scientists from Korea and two from Japan have been with us on this cruise and have been valuable participants. It has been particularly important to coordinate our mooring positions with Korean deep-crab fishing captains. There is intense fishing and crabbing in the Ulleung Basin, including bottom fishing at depths as great as 2,000 meters. So we and the local fishermen have a mutual concern about interference from the other's activities. KORDI scientists, led by Dr. Moon-Sik Suk, kindly arranged a meeting with the fishing captains union earlier this year, and we hope to have another such meeting after the cruise. During this cruise we've encountered concerned fishermen in their boats; having Dr. Suk on board has been extremely valuable for on-site negotiations and real-time deciScrippsn-making in these situations, allaying the fishermen's fears or repositioning moorings. If our success continues, we anticipate finishing the cruise early. We greatly appreciate the efforts of everyone on board, and especially the competent and willing support of the R/V Roger Revelle officers and crew (Capt. T. Desjardins), and from Koonce and Jacobson, the marine technicians aboard. (Randy Watts and Mark Wimbush/URI)

R/V New Horizon, Weekly Scientific Report, 11 June 1999: This cruise is a sidescan sonar survey of a gas hydrate province off central Oregon known as Hydrate Ridge . This project is part of a larger effort involving Oregon State University and GEOMAR known as TECFLUX. This leg focuses on the surface and shallow subsurface evidence for fluid venting across a wide transect across the gas hydrate stability zone on an active continental margin. Using a low-frequency sonar, we can image carbonate deposition in the shallow subsurface as a proxy for fluid venting. We will also assess the relative importance of focused vs. diffuse fluid flow across the accretionary wedge. The data will also serve as a site survey for numerous experiments to be deployed during the 1999 field season, and as a site survey for upcoming drilling with a new seafloor sampling system called the PROD, or Portable Remotely Operated Drill. Later this summer we will use this system to take 100 m cores at selected sites to ground truth the sonar observations and investigate the vertical distribution of hydrates. New Horizon has been an ideal vessel for this project. The sonar is deep-towed near the bottom, and in our case, over rough topography. The fast winch (100 m/min) allows us to fly over steep terrain and maintain a relatively constant height off the bottom. Several people did note that they hadn't ever seen the winch go that fast one evening after a close encounter with a near-vertical cliff. The survey has just been completed as I write, and we have also finished processing one of the most detailed sonar maps ever made across a convergent margin and are heading for home. Other good news is that the food is great, and of course this is the bad news too. (Chris Goldfinger/OSU)

CRUISE MAP INDEX/AREA/ CH SCI/INSTITUTION/ PORTS DAYS/AGENCY/
DATES PURPOSE/ PROPOSAL NO./ STATUS/CLEAR
CAPTAIN/CHIEF ENGINEER/STS TECH
==========================================================

R/V ROGER REVELLE
5
06 Jun NP7/Japan, East Sea/ Watts, D.R./URI/ Pusan 15/ONR/F
19 Jun Mooring Deployment N00014-98-1-0200 Pusan Japan,S.Korea

T.Desjardins/P.Mauricio/T.Koonce/D.Jacobson
20, 21, 22, 23
24 Jun NP9/Japan, East Sea/ Talley, L./Scripps/ Pusan 25/ONR/F
17 Jul Hydrographic Measur. N00014-98-1-0200 Pusan 05/ONR/F
18,19 Japan,S.Korea
D.Murline/P.Mauricio/T.Koonce/D.Jacobson Russia

R/V MELVILLE
17
18 Jun NP12-NP9/NPAC/ Colosi, J./WHOI/ Honolulu 18/ONR/F
03 Jul Acoustic Laboratory N00014-97-1-0259 Astoria
4
E.Buck/R.Wheatley/G.Pillard/R.Moe

R/V NEW HORIZON

13 Jun NP9/Off Newport/ Collier, R./OSU/ Newport 12/NSF/F
23 Jun Chemical Oceanography OCE98-11417 Newport

C.Curl/R.Frei/L.Butler
24
25 Jun NP6-NP9/48-10N,127-10W/Spiess, F./Scripps/ Newport 14/NSF/F
07 Jul Convergence OCE97-30870 at sea Canada

J.Manion/R.Frei/L.Butler

R/V ROBERT GORDON SPROUL

09 Jun NP9/Columbia Frasier/ Simenstad, C./UW/ San Diego 45/NSF/F
23 Jul OCE94-12028 Eureka Canada

L.Zimm/J.Potts/S.Baiz

R/P FLIP

In port in San Diego

R/V DAVID STARR JORDAN

21 Jun NP9/Off San Diego
25 Jun DS-99-03A/Shark Tagging


Editor: Jill Ives
Scripps Institution of Oceanography
University of California, San Diego
Scrippscomm@Scripps.ucsd.edu

Return to Scripps Home Page