Seasonal pycnocline depth from Seaglider density, (B) Seaglider chlorophyll a
(mg m23) averaged 0–10 m, (C) Seaglider particulate backscatter (m21) averaged 0–10 m, (D)
SeaWiFS satellite-derived, near-surface chlorophyll a (mg m23; dotted regions indicate
interpolated values), (E) Seaglider chlorophyll a (mg m23) averaged 0–100 m, and (F) Seaglider
particulate backscatter (m21) averaged 0–100 m. Note that scales differ in (B) vs. (E) and (C) vs.
(F). Vertical dashed lines indicate timing of establishment of summer pycnocline and near-surface
phytoplankton bloom as measured by Seaglider. Alternating open and closed circles identify data
collected with a single optical sensor; numbers 1–7 above (A) indicate optical sensor used