In:
Annual Review of Marine Science, Annual Reviews, Vol. 15, No. 1 ( 2023-01-16), p. 167-202
Abstract:
Exchange of material across the nearshore region, extending from the shoreline to a few kilometers offshore, determines the concentrations of pathogens and nutrients near the coast and the transport of larvae, whose cross-shore positions influence dispersal and recruitment. Here, we describe a framework for estimating the relative importance of cross-shore exchange mechanisms, including winds, Stokes drift, rip currents, internal waves, and diurnal heating and cooling. For each mechanism, we define an exchange velocity as a function of environmental conditions. The exchange velocity applies for organisms that keep a particular depth due to swimming or buoyancy. A related exchange diffusivity quantifies horizontal spreading of particles without enough vertical swimming speed or buoyancy to counteract turbulent velocities. This framework provides a way to determinewhich processes are important for cross-shore exchange for a particular study site, time period, and particle behavior.
Type of Medium:
Online Resource
ISSN:
1941-1405
,
1941-0611
DOI:
10.1146/marine.2023.15.issue-1
DOI:
10.1146/annurev-marine-032122-115057
Language:
English
Publisher:
Annual Reviews
Publication Date:
2023
detail.hit.zdb_id:
2458404-6
SSG:
12