Tropical Pacific observing system

Neville Smith, William S. Kessler, Sophie Cravatte, Janet Sprintall, Susan Wijffels, Meghan F. Cronin, Adrienne Sutton, Yolande Serra, Boris Dewitte, Peter G. Strutton, Katherine Hill, Alex Sen Gupta, Xiaopei Lin, Ken Takahashi, Dake Chen, Shelby Brunner

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

This paper reviews the design of the Tropical Pacific Observing System (TPOS) and its governance and takes a forward look at prospective change. The initial findings of the TPOS 2020 Project embrace new strategic approaches and technologies in a user-driven design and the variable focus of the Framework for Ocean Observing. User requirements arise from climate prediction and research, climate change and the climate record, and coupled modeling and data assimilation more generally. Requirements include focus on the upper ocean and air-sea interactions, sampling of diurnal variations, finer spatial scales and emerging demands related to biogeochemistry and ecosystems. One aim is to sample a diversity of climatic regimes in addition to the equatorial zone. The status and outlook for meeting the requirements of the design are discussed. This is accomplished through integrated and complementary capabilities of networks, including satellites, moorings, profiling floats and autonomous vehicles. Emerging technologies and methods are also discussed. The outlook highlights a few new foci of the design: biogeochemistry and ecosystems, low-latitude western boundary currents and the eastern Pacific. Low latitude western boundary currents are conduits of tropical-subtropical interactions, supplying waters of mid to high latitude origin to the western equatorial Pacific and into the Indonesian Throughflow. They are an essential part of the recharge/discharge of equatorial warm water volume at interannual timescales and play crucial roles in climate variability on regional and global scales. The tropical eastern Pacific, where extreme El Niño events develop, requires tailored approaches owing to the complex of processes at work there involving coastal upwelling, and equatorial cold tongue dynamics, the oxygen minimum zone and the seasonal double Intertropical Convergence Zone. A pilot program building on existing networks is envisaged, complemented by a process study of the East Pacific ITCZ/warm pool/cold tongue/stratus coupled system. The sustainability of TPOS depends on effective and strong collaborative partnerships and governance arrangements. Revisiting regional mechanisms and engaging new partners in the context of a planned and systematic design will ensure a multi-purpose, multi-faceted integrated approach that is sustainable and responsive to changing needs.

Original languageEnglish (US)
Article number31
JournalFrontiers in Marine Science
Volume6
Issue numberFEB
DOIs
StatePublished - Feb 18 2019
Externally publishedYes

Fingerprint

Biogeochemistry
western boundary current
biogeochemistry
intertropical convergence zone
governance
tongue
climate
Ecosystems
oceans
strategic approach
stratus
throughflow
air-sea interaction
warm pool
climate prediction
ecosystems
ecosystem
Mooring
upper ocean
diurnal variation

Keywords

  • Design
  • Ocean observing
  • TPOS 2020
  • Tropical moorings
  • Tropical Pacific
  • User requirements
  • Variable requirements

ASJC Scopus subject areas

  • Oceanography
  • Global and Planetary Change
  • Aquatic Science
  • Water Science and Technology
  • Environmental Science (miscellaneous)
  • Ocean Engineering

Cite this

Smith, N., Kessler, W. S., Cravatte, S., Sprintall, J., Wijffels, S., Cronin, M. F., ... Brunner, S. (2019). Tropical Pacific observing system. Frontiers in Marine Science, 6(FEB), [31]. https://doi.org/10.3389/fmars.2019.00031

Tropical Pacific observing system. / Smith, Neville; Kessler, William S.; Cravatte, Sophie; Sprintall, Janet; Wijffels, Susan; Cronin, Meghan F.; Sutton, Adrienne; Serra, Yolande; Dewitte, Boris; Strutton, Peter G.; Hill, Katherine; Gupta, Alex Sen; Lin, Xiaopei; Takahashi, Ken; Chen, Dake; Brunner, Shelby.

In: Frontiers in Marine Science, Vol. 6, No. FEB, 31, 18.02.2019.

Research output: Contribution to journalReview article

Smith, N, Kessler, WS, Cravatte, S, Sprintall, J, Wijffels, S, Cronin, MF, Sutton, A, Serra, Y, Dewitte, B, Strutton, PG, Hill, K, Gupta, AS, Lin, X, Takahashi, K, Chen, D & Brunner, S 2019, 'Tropical Pacific observing system', Frontiers in Marine Science, vol. 6, no. FEB, 31. https://doi.org/10.3389/fmars.2019.00031
Smith N, Kessler WS, Cravatte S, Sprintall J, Wijffels S, Cronin MF et al. Tropical Pacific observing system. Frontiers in Marine Science. 2019 Feb 18;6(FEB). 31. https://doi.org/10.3389/fmars.2019.00031
Smith, Neville ; Kessler, William S. ; Cravatte, Sophie ; Sprintall, Janet ; Wijffels, Susan ; Cronin, Meghan F. ; Sutton, Adrienne ; Serra, Yolande ; Dewitte, Boris ; Strutton, Peter G. ; Hill, Katherine ; Gupta, Alex Sen ; Lin, Xiaopei ; Takahashi, Ken ; Chen, Dake ; Brunner, Shelby. / Tropical Pacific observing system. In: Frontiers in Marine Science. 2019 ; Vol. 6, No. FEB.
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