Direct Covariance Surface Stress and Heat Fluxes from the Ocean Observatories Initiative (OOI) Surface Moorings

This repository provides direct covariance (DC) surface stess and heat flux collected on four Ocean Observatories Initiative (OOI) Moorings. The zip file contain turbulent and radiative fluxes saved as matlab *.mat data files together with near surface meteorological and oceanic data. The data was collected with an FDCHP (aka a Direct Covariance Flux System or DCFS) deployed on four surface moorings in the Global Irminger Sea and Southern Ocean, and the Coastal Pioneer and Endurance Arrays. The 10 Hz flux data is collected every hour for 20 minutes. The DCFS motion corrects the 3-axis sonic anemometer using 3-axis accelerometers, angular rate sensors, and heading closely following the approach described by Edson et al. (1998). The motion corrected data provides many variables including the along-wind and cross-wind components of the stress vector. The heat flux is computed from the sonic temperature that closely approximates the virtual temperature. These fluxes and associated means are described in the readme file (readmeFluxdata_rev3). The also data includes a test program (TestProgram) that reads in the data from one of the deployment in the Irminger Sea and plots the DC fluxes against the bulk fluxes. The bulk fluxes are computed using COARE 3.5 algoritm (Edson et al. 2013), which is also included as a matlab script (coare35vn.m). In this example, the test program uses data from the Irminger Sea array, but should work with any of the data sets in the repository. Everything is in matlab, so you will need some experience with this language. This readme file describes all variables and begins with a description of the Status Byte named Sbyte. The best data is associated with Sbyte==0 as shown by the test program. Please contact [e-mail] or [e-mail] with questions. Please include the NSF OOI references given below in any publication that uses this data.