Figure 11.

Time series during the period 31 July 2005 to 29 September 2005. a) Near-bottom DO time derivative and u, v velocity components 12m above bottom at E4. b) Wind stress at NDBC Cape Elizabeth buoy 46041. c) Near-bottom fluorescence at E4, with near-bottom values from shipboard fluorescence profiles (crosses). d) DO spatial gradients in the x, y (grey, black) direction, with estimated error, E (see text, Section 2.4). e) Measured DO (black) compared to that predicted (grey) by both spatially variable gradients from the KB line, and a large constant cross-shelf gradient, with measured u. The dash-dot and dashed lines utilize velocity coordinate systems rotated ±10°. f) Measured DO time series (black) compared to that predicted (grey) by a constant along-shelf gradient on both sides of a patch with measured v. Dashed line includes total respiration calculated from the mass balance in Section 4.2 d, and the velocity reduced by 50% to account for bottom friction.