Accession Number:

ADA503648

Title:

Preparing to Predict: The Second Autonomous Ocean Sampling Network (AOSN-II) Experiment in the Monterey Bay

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV

Report Date:

2008-10-25

Pagination or Media Count:

20.0

Abstract:

The Autonomous Ocean Sampling Network Phase Two AOSN-II experiment was conducted in and offshore from the Monterey Bay on the central California coast during 23 July - 6 September 2003. The objective of the experiment was to learn how to apply new tools, technologies, and analysis techniques to adaptively sample the coastal ocean in a manner demonstrably superior to traditional methodologies, and to use the information gathered to improve predictive skill for quantities interest to end-users. The scientific goal was to study the upwellingrelaxation cycle near an open coastal bay in an eastern boundary current region developed and spread from a coastal headland. The suite of observational tools used included a low-flying aircraft, a fleet of underwater gliders, under adaptive autonomous control, and propeller-driven AUVs in addition to moorings, ships, and other more traditional hardware. The data were time and assimilated into the Harvard Ocean Prediction System HOPS, the Navy Coastal Ocean Model NCOM, and the Jet Propulsion Laboratory of the Regional Ocean Modeling System JPLROMS. Two upwelling events and one relaxation event were sampled during the experiment. The space and time scales of the mesoscale variability were much shorter than have been previously observed in deep-water eddies offshore. Additional process studies are needed to elucidate the dynamics of the flow.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Cybernetics
  • Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE