Environmental Sampling during PN07

Heather Hornick

During the PLUSNET 07 experiment in Dabob Bay, Washington, autonomous kayaks were used at gateway buoys for a network of AUVs. The kayaks provide an excellent, inexpensive test platform for additional objectives. One of the four kayaks had a computer operated winch and Seabird 49 CTD attached. This
kayak was used to demonstrate the ability to provide adaptive sampling from remote locations. A website was created to which the kayak automatically uploaded data at the end of each CTD cast. Scientists onshore at MIT were able to analyze the data in real time, evaluate model results and update the kayak mission profiles to sample in areas of interest or model ambiguity. The 6 University of Washington SeaGliders were providing conflicting data to the ocean models. We were able to deploy the kayak to a specific location to assist in calibration of 3 SeaGliders. Additionally, we ran a preliminary experiment to measure and verify sound speed, using pings from the acoustic modems on two of the kayaks and the CTD on a third.