Shipboard Measurements of Surface Flux and Near Surface Profiles and Surface Flux Parameterization
Abstract
The long-term goal of this project is to understand the effects of surface waves on the structure of the marine atmospheric surface layer and surface flux parameterizations under a broad range of wind-wave conditions. The project is part of the High Resolution Wave-Air-Sea Interaction research initiative (HiRes). The objectives of the project are to characterize low-level atmospheric wind and thermodynamic profiles and variations, to understand oceanic and atmospheric large-scale forcing that affects boundary layer properties, and to understand the role of measured wave field in modifying atmospheric surface fluxes. Our work within this project consists of three parts: measurements, the subsequent data analyses, and mesoscale model evaluation/improvements. The ship-based measurement efforts include high-rate sampling of the turbulent field for direct covariance flux measurements; continuous sampling of low-level wind profiles by the ship-based acoustic Sodar; rawinsonde measurements of the troposphere; and a suite of mean variables for quantifying the low-level thermodynamic and dynamic fields, downward radiation, and sea surface temperature measurements. The data analyses will focus on the low-level surface layer properties and surface flux parameterization involving sea state parameters. In addition to evaluating current COAMPS, we will experiment with sea-state dependant surface flux parameterization in COAMPS, possibly in coupled mode.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA527233
Entities
People
- Qing Wang
Organizations
- Naval Postgraduate School