Figure 3. Diagram showing the subarctic Pacific with proposed study region in the Northern Gulf of Alaska (outside of PWS, but extending westward into the Shelikof Strait and Kodiak Island region). Shading indicates regions for studies of cross-shelf exchange (large double-headed arrows) of plankton and salmon (darkest tint) and larger region (lighter tint) for examination of salmon survival, especially predation mortality. Potential monitoring transects in the subarctic Pacific are shown as black lines (a-d). Line N is a potential monitoring site (Newport, OR) for comparison. Large circles are deep water moorings in the Gulf. Not shown are satellite observations, VOS sampling, and details of sampling in the process-study regions. The dashed line delimits the region within which PALACE floats or other Lagrangian instruments could be deployed.