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".

Notes

^ John Simpson. "Biography".

^ Simpson, J.H.; Bos, W.G.; F. Shirmer, A.J. Souza, T.P. Rippeth, S.E. Jones and 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 Brackish marsh Cape Channel Cliff Cliff-top dune Cliffed coast Coast Coastal plain Coastal waterfall Continental margin Continental shelf Coral reef Cove Dune Estuary Firth Fjard Fjord Flat coast Freshwater marsh Fundus Gat Geo Graded shoreline Gulf Gut Headland Inlet Intertidal wetland Island Islet Isthmus Lagoon Machair Marine terrace Mega delta Mouth bar Mudflat Natural arch Peninsula Raised shoreline Reef Regressive delta Ria River delta Rocky shore Salt marsh Shoal Shore Sound Stack Steep coast Strait Strand plain Submarine canyon Tidal island Tidal marsh Tide pool Tied island Tombolo Windwatt more ...

Beaches	Beach cusps Beach evolution Beach morphodynamics Beach ridge Beachrock Modern recession of beaches Pocket beach Raised beach Shingle beach Storm beach Wash margin

Processes	Blowhole Coastal biogeomorphology Coastal erosion Concordant coastline Current Cuspate foreland Discordant coastline Emergent coastline Feeder bluff Fetch Headlands and bays Large-scale coastal behaviour Longshore drift Marine regression Marine transgression Rip current Sea cave Sea foam Shoal Spit 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 Coastline length Intertidal zone Littoral zone Grain size boulder cobble clay granule pebble sand shingle silt Physical oceanography Region of freshwater influence more ...

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Region of freshwater influence