Fundy & Chesapeake - Assignment Example

Earth and space science A tidal bore is a powerful tide that pushes up a river and/ or rivers against the currents. It is caused by tidal flow. A tidal range is the difference between the highest tide and the lowest tide. The Bay of Fundy between Nova Scotia and New Brunswick have a tidal bore and a tidal range of over 50 feet while Chesapeake Bay has no bore and much lower tides because of the geographical location of the Bay of Fund. From geology point of view, Bay of Fund lies in a rift valley by the name Fundy Basin.

It was formed as the rift began to separate from the main land of North America. Other processes such as volcanicity afterward occurred. Volcanic activity led to the formation of volcanic mountains and flood basalts. These flood basalts poured out over the landscape, covering much of Southern Nova Scotia. Some sections of the flood basalts eroded (Harlow, 2006). The upper part of the Bay Fund splits into Chignecto Bay in the northeast and minas Basin in the east. Chignecto Bay additionally divided into Cumberland basin and shepody bay and the extreme eastern portion of Minas Basin (Cobequid bay).

The upper reaches show that is exposed red bay sludge for which is bay noted. The minas channel connects the Minas Basin with main bay body. The channel is approximately 5, 6 kilometers across and approximately 106.7 meters. Therefore tides that flow through are very powerful. The lower bay part has four sub basins namely: Back Bay and Passamaquoddy Bay on New Brunswick shore, Annapolis Basin on the Nova Scotia shore and cobs cook Bay. The bay’s extreme tidal range causes the Saint John’s River to flow in a reversed direction at high tide causing a series of rapids at famous Reversing falls where the river empties into the bay in the gorge in the focal point of the city of Saint John.

Rivers in the upper Bay of Fundy have a lesser flow rate than the Saint John, and a shallower slope. This causes widespread mud flats deposited all through the tidal range of rivers. In the tidal bore, wave front of water bores pushes up a river against its normal flow. The shallow and narrow estuaries around the upper bay produce bores on regular basis. The advancing tide is slowed by shallow waters consequently building up with a deep pour of advancing water. Contrary, Chesapeake Bay is located in a poor geographical location and therefore has no bores.

The bay has lower tides because small tidal range unlike the Fundy bay. The Amazon River despite the fact that is the largest river in the entire world, its mouth is not narrow. The bore develops there for the reason that the river is shallow and dotted by several low lying islands and sand bars. The Amazon does not have a delta. Its sediment is emptied to the Atlantic Ocean by fast moving currents (Cousineau & University of Ottawa, 2012). Moon’s gravitational force pulls water in the water body so that bulges occur in both sides of the planet.

The high tide gives the aircraft a favorable condition for its operations. ReferencesBay of Fundy Tidal Power Review Board (Canada). (2007). Reassessment of Fundy tidal power (3rd ed.). Nova Scotia: Bay of Fundy Tidal Power Review Board. Cousineau, J., & University of Ottawa. (2012). Hydrodynamic Impacts of Tidal Lagoons in the Upper Bay of Fundy (5th ed.). Harlow, W. M. (2006). Tides of Fundy (4th ed.). William M. Harlow.