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21 Aug - Feature Tracking in the Plume
Feature Tracking exercises filled the day. We received 15 way-points in and around the Columbia River plume from Antonio Baptista, and visited these waypoints at specific times during the day for CTD casts. Stations were named P-1 to P-15. We e-mailed information about surface salinity and temperature from the CTD and the surface water flow through system back to the modeling team at OHSU, who used the information to compare with model predictions. The last cast was at 2100. We then traveled north to station GH-21 on the Grays Harbor line to begin a line of CTD casts going south along the 100m isobath, where we expect to see hypoxia.
[img_assist|nid=772|title=Wiley Evans and Sonia Newell at the CTD station|desc=|link=popup|align=left|width=200|height=150]