Studies of the Origins of the Kuroshio and Mindanao Currents with EM-APEX Floats and HPIES
Abstract
Long-term goals are improving observations and understanding of major oceanographic features and phenomena. We emphasize motionally induced electric fields for measuring ocean velocities. The use of bottom-mounted horizontal electric field sensors combined with inverted echo sounder units complements the ADCP moorings in the Kuroshio near the NE tip of Luzon, the Philippines. The new instrument is denoted as HPIES, an abbreviation of Horizontal EF, Pressure and Inverted Echo Sounder. The HEF measures the barotropic horizontal velocity. The pressure and IES data determine baroclinic velocity when operated in a horizontal array. Three complete HPIES exist from the original NSF development support. Two new HPIES are being built using existing PIES and new HEF units. Five HPIES will be deployed around two upper ocean ADCP moorings by Ren-Chieh Lien. The ADCP is to be moored at 600-m level and upward looking. The HPIES will provide the depthaveraged velocity. Thus, the combination provides both upper ocean Kuroshio transport and totalwater transport.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2010
- Accession Number
- ADA542490
Entities
People
- Thomas B. Sanford
Organizations
- University of Washington