Shoreward of the shelf break, the mean temperature, salinity, and density fields from EB glider observations capture expected features of the Middle Atlantic Bight shelf-break frontal region. The shelf-break front itself appears as a transition from cooler, fresher shelf waters to warmer, saltier slope waters, with isopycnals sloping upward offshore to form a retrograde front (i.e., the slope of the isopycnals is in the opposite direction of the slope of the bathymetry). The foot of the shelf-break front, identified as the location at which the 26.5 kg m–3 isopycnal (Linder and Gawarkiewicz, 1998) intersects the seafloor, is found near the 100 m isobath (approximately 40°12'N), in general agreement with previous, longer-term climatologies (e.g., Linder and Gawarkiewicz, 1998). More recent studies (e.g., Pickart, 2000; Linder et al., 2004; Fratantoni and Pickart, 2007) suggest that the frontal upwelling associated with the shelf-break front is centered on the 26.0 isopycnal, which intersects the seafloor near the 80 m isobath (approximately 40°20'N). The “cold pool” (Houghton et al., 1982), a region of cold water between the seasonal thermocline, the seafloor, and the shelf-break front is apparent shoreward of 40°15'N (Figure 2a), with minimum temperature below 12°C. Salinities within the cold pool range from 33.7 to 34.5 (Figure 2b), which is more saline than the typical salinities near 33 reported previously (e.g., Linder et al. 2006).