Award Abstract # 0623533
Origin, pathway, and fate of Equatorial 13C Water in the Pacific

NSF Org: OCE
Division Of Ocean Sciences
Recipient: UNIVERSITY OF HAWAII
Initial Amendment Date: September 2, 2006
Latest Amendment Date: September 2, 2006
Award Number: 0623533
Award Instrument: Standard Grant
Program Manager: Eric C. Itsweire
OCE
 Division Of Ocean Sciences
GEO
 Directorate for Geosciences
Start Date: September 1, 2006
End Date: August 31, 2010 (Estimated)
Total Intended Award Amount: $486,210.00
Total Awarded Amount to Date: $486,210.00
Funds Obligated to Date: FY 2006 = $486,210.00
History of Investigator:
  • Tangdong Qu (Principal Investigator)
    tangdong@ucla.edu
  • Ichiro Fukumori (Co-Principal Investigator)
Recipient Sponsored Research Office: University of Hawaii
2425 CAMPUS RD SINCLAIR RM 1
HONOLULU
HI  US  96822-2247
(808)956-7800
Sponsor Congressional District: 01
Primary Place of Performance: University of Hawaii
2425 CAMPUS RD SINCLAIR RM 1
HONOLULU
HI  US  96822-2247
Primary Place of Performance
Congressional District:
01
Unique Entity Identifier (UEI): NSCKLFSSABF2
Parent UEI:
NSF Program(s): PHYSICAL OCEANOGRAPHY,
EPSCoR Co-Funding
Primary Program Source: app-0106 
app-0406 
Program Reference Code(s): 0000, 9150, OTHR
Program Element Code(s): 161000, 915000
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.050

ABSTRACT

This project will conduct a thorough, systematic study of Equatorial 13 degC Water. They will first develop a comprehensive description of the origin, pathway, and fate of the water mass using all available hydrographic and tracer data combined with results from high-resolution GCMs. They will then examine the temporal (mesoscale to decadal) variability of its circulation and possible influence on the equatorial thermocline and sea surface temperature using a simulated passive tracer and adjoint technique. Their specific goal is to identify the northern versus southern origin, interior versus western boundary pathway, and mean versus time-dependent circulation of this water mass.

Broader Impacts:
This project will (i) advance science while promoting education (by the training of a postdoctoral fellow in the analysis of observational data and model outputs); (ii) enhance infrastructure for research and education by establishing collaborations between disciplines and between institutions; and (iii) benefit the society by the use of high-quality World Ocean Circulation Experiment data and results from high-resolution general circulation models to assess climate change.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Qu, T., and J. Chen "A North Pacific decadal variability in subduction rate" Geophysical Research Letter , v.36 , 2009 doi:10.1029/2009GL040914
Qu, T., and. T. Y. Song "Mindoro Strait and Sibutu Passage Transports Estimated from Satellite Data" Geophysical Research Letter , v.36 , 2009 doi: 10.1029/2009GL037314
Qu, T., J. Gan, A. Ishida, Y. Kashino, and T. Tozuka "Semiannual variation in the western tropical Pacific Ocean" Geophysical Research Letter , v.35 , 2008 doi: 10.1029/2008GL035058
Qu, T., S. Gao, I. Fukumori, R. A. Fine, and E. J. Lindstrom "Subduction of South Pacific Waters" Geophysical Research Letter , v.35 , 2008 10.1029/2007GL032605
Qu, T., S. Gao, I. Fukumori, R. A. Fine, and E. J. Lindstrom "Subduction of South Pacific Waters" Geophysical Research Letter , v.35 , 2008 doi:10.1029/2007GL032605
Qu, T., S. Gao, I. Fukumori, R., A. Fine, and E. J. Lindstrom "Origin and Pathway of Equatorial 13�ºC Water in the Pacific identified by a simulated passive tracer and its adjoint" Journal of Physical Oceanography , v.39 , 2009
Qu, T., T. Y. Song, and T. Yamagata "An introduction to the South China Sea throughflow: Its dynamics, variability, and implication for climate" Dynamics of Atmospheres and Oceans , v.47 , 2009 , p.3-14
Tozuka, T., T. Qu, and T. Yamagata "Impacts of the South China Sea throughflow on seasonal and interannual variations of the Indonesian throughflow" Dynamics of Atmospheres and Oceans , v.47 , 2009 , p.73-85

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