Jordan Basin

Overview
Jordan Basin is one of three large basins in the Gulf of Maine.

Surface area
2,585 mi2

Depth
~310 m

Bathymetry including key features
Thick deposits of mud obscure the bathymetry of the underlying bedrock features in Jordan Basin.1 The surface of the bottom is featureless except for small mounds.2

Substrate
Jordan Basin is covered in thick deposits of mud.3,4 4 The sediment-water interface within Jordan Basin is characterized by a layer of turbid water that is tens of meters deep. The turbidity is due to the suspension of fine particles.5

Relationship to large-scale circulatory patterns of the Gulf of Maine
Water from the continental slope enters the Gulf of Maine at depth through the Northeast Channel. It accumulates first in Georges Basin and then crosses a sill into Jordan Basin.6 A portion of the Gulf’s coastal current turns offshore at Penobscot Bay. Some of this current is entrained in turn by a gyre that flows in a counterclockwise direction over Jordan basin.7,8

Information on average (seasonal/annual) oceanographic conditions
The oceanography of Jordan Basin is characterized by a counter clockwise gyre. These currents are strongest in the spring and summer. It is estimated that the deep waters of the Gulf of Maine, such as in Jordan Basin, are replaced every 10-12 months.9

Presence of GoMOOS buoy
Buoy M, is located in Jordan Basin.

1 New England Fisheries Management Council, 2004
2 Valentine, 2002
3 New England Fisheries Management Council, 2004
4 Dorsey and Pederson, 1998
5 Pilskaln, et al., 1998
6 Nova Scotia Museum of Natural History. Undatedc
7 Xue et a., 2000
8 Pettigrew, et al., 2005
9 Xue, et al., 2000