AC-9

In this page we present the known instrumental issues, operation guidelines, quality check tests, and processing guidelines that are used by the Optical Oceanography group at Oregon State University. These guidelines were developed based on the experience of several people in our group, including Andrew Barnard, Emmanuel Boss, Scott Pegau, and Mike Twardowski. This description is heavily based on information that can be found in the Wetlabs ac-9 protocols and Twardowski et al. (1999) in the Journal of Atmospheric and Oceanic Technology. This work just expands on some sections of the ac-9 protocols. Our intention is not to provide a document that supercedes the existing protocols, but to explain how we operate the instruments, why we use those techniques, and what are some of the problems that we have encountered. We don’t always agree on procedure and at those times we will present the arguments for and against each technique. Most of our experience has been with freefalling packages, although we do have some experience with flow-through systems and SeaSoar deployments.

 #1 RULE:   THE AC-9 IS A SENSITIVE SPECTROPHOTOMETER AND AS SUCH IT REQUIRES QUALITY CALIBRATION (BLANKS) IF GOOD QUALITY DATA IS TO BE OBTAINED.

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Oregon State University
College of Oceanic and Atmospheric Sciences
Environmental Optics - 1999