. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography I ' â V T 1 \ h \ \ \ - \ \ \ \ \ \ N^ \ \ \ \ - \\\ " - X^V - ^V - 1 - (b) i i i 1 -20 -15 -10 -5 0 5 10 0-3 0-4 0-5 0-6 0-7 0-8 0-9 1-0 i/(cm/s) S Figure 4. Variations of (a) velocity and (b) salinity profiles at the seaward boundary, x = o, with river flow, Ut. Ut (cm/s): , 1; , 2; , 4. nevertheless, they are quite different overall. The total landward transport into the lower layer is almost independent of the amount of freshwater discharge
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography I ' â V T 1 \ h \ \ \ - \ \ \ \ \ \ N^ \ \ \ \ - \\\ " - X^V - ^V - 1 - (b) i i i 1 -20 -15 -10 -5 0 5 10 0-3 0-4 0-5 0-6 0-7 0-8 0-9 1-0 i/(cm/s) S Figure 4. Variations of (a) velocity and (b) salinity profiles at the seaward boundary, x = o, with river flow, Ut. Ut (cm/s): , 1; , 2; , 4. nevertheless, they are quite different overall. The total landward transport into the lower layer is almost independent of the amount of freshwater discharged. This is a somewhat surprising result, but may be due in part to making the bottom salinity at the seaward entrance independent of river flow. Upstream attenuation of the landward flow is consider- ably more rapid for larger river flows. This model varies qualitatively from the similarity solutions in that the vertical profiles are not constrained to be similar throughout the estuary. Two features of particular interest are the length of the salinity intrusion into the estuary and the position of the stagnation point. The horizontal variations of salinity at the surface and at the bottom are shown in Figure 5. The longitudinal patterns are similar to the exponential forms given by Hansen & Rattray (1965), except that here we obtain what is not available as an analytic similarity solution: a complete transition to zero salinity. The length of the salinity intrusion, defined by the. _! L 0 10 20 30 40 50 60 70 80 90 100 Xlkm) Figure 5. Longitudinal variations of surface and bottom salinity as a function of river flow, U,. Uf (cm/s): , 1; â, 2; , 4. 59. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Laboratories; United State
Size: 1543px × 1619px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionamericana, bookleafnumber79, books
