Fig. 10. Examples of nitrate (NO₃) versus silicate (SiO₃) concentration scatter plots of data from the upper 100 m for LSMP spring and summer missions showing: (left panel) NO₃-depleted conditions on the Labrador Shelf, (center panel) SiO₃-depleted condition in the central Labrador Basin, and (right panel) co-depleted conditions on the Greenland Shelf. Solid lines = least squares linear regression fits.