A tethered free fall glider to measure microstructures associated with submesoscale processes at front

• Project/Area Number: 20340127
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: YAMAZAKI Hidekatsu Tokyo University of Marine Science and Technology, 海洋科学部, 教授 (80260537)
• Co-Investigator(Kenkyū-buntansha): KONDO Hayato 東京海洋大学, 海洋工学部, 准教授 (40361802) ; NAGAI Takeyoshi 東京海洋大学, 海洋科学部, 助教 (90452044)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2008: ¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
• Keywords: フロント / 乱流 / 混合 / 微細構造 / グライダー / 測器開発 / サブメゾスケール / 水中グライダー

Research Abstract

In order to measure turbulent microstructures at a coastal front, we have developed a tethered free fall microstructure profiler (TurboMAP-Glider). This is a quasi-horizontal profiler, thus it is suited to measure mixing events around front and layered structures. We also designed a lunching system to protect the instrument during launching and recovering. In addition to TurboMAP-Glider, we also developed a towed free-fall CTD system (Sailing Boat Profiler, SBPro) so that we can identify the location of front.

Research Products

• [Journal Article] Physical and biological controls of vertical gradients in phytoplankton (2011)
  • Author(s): Prairie J.C., P.J.S. Franks, J.S. Jaffe, M.J. Doubell, H.Yamazaki
  • Journal Title: Limnology and Oceanography : Fluids and Enviroments (in press)
  • Peer Reviewed
• [Journal Article] Physical and biological controls of vertical gradients in phytoplankton (2011)
  • Author(s): J.C.Prairie, P.J.S.Franks, J.S.Jaffe, M.J.Doubell, H.Yamazaki
  • Journal Title: Limnology and Oceanography: Fluids and Enviroments Volume: In press
  • Peer Reviewed
• [Journal Article] Development of the Glider-type Turbulence Ocean microstructures Acquisition Profiler, TurboMAP-G (2010)
  • Author(s): Arima, M., H.Nakamura, H.Yamazaki
  • Journal Title: Procs. of the twentieth, International Offshore and Polar Engineering Conference (ISOPE-2010) CD-ROM
  • Peer Reviewed
• [Journal Article] Dynamics of marine ecosystems: integration through models of physical-biological interactions (2010)
  • Author(s): DeYoung, B., F.Werner, H.Batchelder, F. Carlotti, O.Fiksen, E.Hofmann, S, Kim, H.Yamazaki
  • Journal Title: In Marine Ecosystems and Climate Change_Oxford University Press, ((eds) M.Barange, J.Field, R.Harris, E.Hofmann, R.Perry, and F.Werner) Oxford University Press Pages: 89-128
  • Peer Reviewed
• [Journal Article] Multilayer biological structure and mixing in the upper water column of Lake Biwa during summer 2008 (2010)
  • Author(s): Yamazaki, H., H.Honma, T.Nagai, M.Doubell, K.Amakasu, M.Kumagai
  • Journal Title: Limnol 11(l)
  • NAID: 10027268891
  • Peer Reviewed
• [Journal Article] Multilayer biological structure and mixing in the upper water column of Lake Biwa during summer 2008 (2010)
  • Author(s): H.Yamazakii, H.Honma, T.Nagai, M.Doubell, K.Amakasu, M.Kumagai
  • Journal Title: Limnol.11(1), doi:10, 1007/S 10201-009-0288-2. Volume: 11 Pages: 63-70
  • NAID: 10027268891
  • Peer Reviewed
• [Journal Article] Development of the Glider-type Turbulence Ocean microstructures Acquisition Profiler, TurboMAP-G (2010)
  • Author(s): M.Arima, H.Nakamura, H.Yamazaki
  • Journal Title: Procs.of the twentieth, International Offshore and Polar Engineering Conference (ISOPE-2010) Volume: CD-ROM
  • Peer Reviewed
• [Journal Article] Evidence of enhanced turbulent dissipation in the frontgenetic Kuroshio front thermocline (2009)
  • Author(s): Nagai, T., A.Tandon, H.Yamazaki, M.Doubell
  • Journal Title: Geophysical Res.Lett 36
  • Peer Reviewed
• [Journal Article] An advanced laser based fluorescence microstructure profiler (TurboMAP-L) for measuring bio-physical coupling in aquatic systems (2009)
  • Author(s): Doubell, M.J., H.Yamazaki, H.Li, Y.Kokubu
  • Journal Title: J.Plank. Res 31(12) Pages: 1441-1452
  • Peer Reviewed
• [Journal Article] Chlorophyll patches observed during summer in the main stream of the Kuroshio (2009)
  • Author(s): Yamazaki, H., I.Iwamatsu, D.Hasegawa, T.Nagai
  • Journal Title: Atmosphere-Ocean 47(4) Pages: 299-307
  • Peer Reviewed
• [Journal Article] A method to estimate three-dimensional thermal structure from satellite altimetry data (2009)
  • Author(s): Takano, A., H.Yamazaki, T.Nagai, O.Honda
  • Journal Title: J.Atmos. Oceanic Tech 26(12) Pages: 2655-2664
  • Peer Reviewed
• [Journal Article] Evidence of enhanced turbulent dissipation in the frontgenetic Kuroshio front thermocline (2009)
  • Author(s): Nagai, T., A.Tandon, H.Yamazaki, M.Doubell
  • Journal Title: Geophysical Res.Lett L12609, doi : 10,1029/2009 36
  • Peer Reviewed
• [Journal Article] An advanced laser based fluorescence microstructure profiler (TurboMAP-L) for measuring bio-physical coupling in aquatic systems (2009)
  • Author(s): Doubell, M.J., H.Yamazaki, H.Li, Y.Kokubu
  • Journal Title: J.Plank.Res 31(12) Pages: 1441-1452
  • Peer Reviewed
• [Journal Article] Multilayer biological structure and mixing in the upper water column of Lake Biwa during summer 2008 (2009)
  • Author(s): Yamazaki, H., H.Honma, T.Nagai, M.Doubell, K.Amakasu, M.Kumagai
  • Journal Title: Limnol. doi : 10,1007/S10201-009-0288-2, 11(1) Pages: 63-70
  • NAID: 10027268891
  • Peer Reviewed
• [Journal Article] "Development of the Glider-type Turbulence Ocean microstructures Acquisition Profiler, TurboMAP-G," Procs. of the twentieth (2009)
  • Author(s): Arima, M., H.Nakamura, H.Yamazaki
  • Journal Title: International Offshore and Polar Engineering Conference (ISOPE-2010), (2010.06) (in press)(CD-ROM)
  • Peer Reviewed
• [Journal Article] One-dimensional mixed layer models (2008)
  • Author(s): Yamazaki, H., H.Burchard, K.Denman, T.Nagai
  • Journal Title: Encyclopedia of Ocean Sciences, Second Edition Elsevier (eds) J.H.Steel, K.K.Turekian and S.A. Thorpe Pages: 4171-4180
  • Peer Reviewed
• [Journal Article] Phytoplankton patch anatomy : seascape patterns in a turbulent ocean (2008)
  • Author(s): Mitchell, J. G., H. Yamazaki, L. Seuronta, F. Wolk, H. Li
  • Journal Title: J. Mar. Sys. 69 Pages: 247-253
  • Peer Reviewed
• [Journal Article] Apparent phytoplankton bloom due to island mass effect (2008)
  • Author(s): Hasegawa, D., H. Yamazaki, T. Ishimaru, H. Nagashima, Y. Koik
  • Journal Title: J. Mar. Sys. 69 Pages: 238-246
  • Peer Reviewed
• [Journal Article] Estimating micro-scale intermittency of fluorescence field from conventional CTD (2008)
  • Author(s): Sato, M., H. Yamazaki
  • Journal Title: J. Mar. Sys. 70 Pages: 240-247
  • Peer Reviewed
• [Presentation] Quest for the building blocks of ocean ecosystems : micro-scale fluorescence patchiness (2010)
  • Author(s): Yamazaki, H., M.Doubell, H.Li, H.Honma, Y.Sagara , A.Nimmo-Smith
  • Organizer: 2010 American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, California
  • Year and Date: 2010-12-18
• [Presentation] Multilayer physical system and biological structure in the upperwater of Lake Biwa during summer (2010)
  • Author(s): Homma, H., H.Yamazaki, T.Nagai, M.Doubell, K.Amakasu, M.Kumagai, C.Jiao, , T.Ishikawa
  • Organizer: 2010 American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, California
  • Year and Date: 2010-12-15
• [Presentation] TurboMAP-Gliderプロトタイプによる海洋観測およびその挙動解析 (2009)
  • Author(s): 中村久人・山崎秀勝・長井健容・有馬正和
  • Organizer: 2009年度日本海洋学会春季大会
  • Place of Presentation: 東京大学
  • Year and Date: 2009-04-06
• [Presentation] Oceanic turbulence and phytoplankton dynamics (2009)
  • Author(s): Yamazaki, H., T.Nagai, M.Doubell, C.Locke
  • Organizer: GEOHAB Modeling workshop
  • Place of Presentation: Galway, Ireland (Invited)
• [Presentation] Multiple thin layer structures and mixing in a thermally stratified water column of Lake Biwa
  • Author(s): Yamazaki, H., H.Honma, T.Nagai, M.Doubell, K.Amakasu, M. Kumagai
  • Organizer: 2010Ocean Science Meeting
  • Place of Presentation: Portland, Oregon (Invited)