Region of freshwater influence

Region of Freshwater Influence (ROFI), a term coined by Prof. John Simpson^[1] of the University of Wales, Bangor, and co-authors, in 1993 in Oceanologica Acta^[2] for the Rhine river plume. The term refers to regions where rivers debouch into estuaries and coastal shelf seas where the currents patterns are governed by density differences between salt sea water and fresh river water. In other words, a ROFI is the region between the shelf sea regime and the estuary where the local input of freshwater buoyancy from the coastal source is comparable with, or exceeds, the seasonal input of buoyancy as heat which occurs all over the shelf.^[3] Americans usually use the term river plume where Europeans use ROFI.

External links

Modelling of the Rhine region of freshwater influence
"Regions of Freshwater Influence". University of Wales, Bangor. Retrieved 2009-10-29.

Notes

↑ John Simpson. "Biography". University of Wales, Bangor. Retrieved 2009-10-29.
↑ Simpson, J.H.; Bos, W.G.; F. Shirmer; A.J. Souza; T.P. Rippeth; S.E. Jones; D. Hydes (1993). "Periodic stratification in the Rhine ROFI in the North Sea". Oceanologica Acta. 16 (1): 23–32.
↑ Simpson, J.H. (1997). "Physical processes in the ROFI regime". Journal of Marine Systems (12): 3–15.

Coastal geography

Landforms	Anchialine pool Archipelago Atoll Avulsion Ayre Barrier island Bay Baymouth bar Bight Bodden Brackish marsh Cape Channel Cliff Coast Coastal plain Coastal waterfall Continental margin Continental shelf Coral reef Cove Dune cliff-top Estuary Firth Fjard Fjord Freshwater marsh Fundus Gat Geo Gulf Gut Headland Inlet Intertidal wetland Island Islet Isthmus Lagoon Machair Marine terrace Mega delta Mouth bar Mudflat Natural arch Peninsula Reef Regressive delta Ria River delta Salt marsh Shoal Shore Skerry Sound Spit Stack Strait Strand plain Submarine canyon Tidal island Tidal marsh Tide pool Tied island Tombolo Windwatt

Beaches	Beach cusps Beach evolution Coastal morphodynamics Beach ridge Beachrock Pocket beach Raised beach Recession Shell beach Shingle beach Storm beach Wash margin

Processes	Blowhole Cliffed coast Coastal biogeomorphology Coastal erosion Concordant coastline Current Cuspate foreland Discordant coastline Emergent coastline Feeder bluff Fetch Flat coast Graded shoreline Headlands and bays Ingression coast Large-scale coastal behaviour Longshore drift Marine regression Marine transgression Raised shoreline Rip current Rocky shore Sea cave Sea foam Shoal Steep coast Submergent coastline Surf break Surf zone Surge channel Swash Undertow Volcanic arc Wave-cut platform Wave shoaling Wind wave Wrack zone

Management	Accretion Coastal management Integrated coastal zone management Submersion

Related	Bulkhead line Grain size boulder clay cobble granule pebble sand shingle silt Intertidal zone Littoral zone Physical oceanography Region of freshwater influence

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