(ËdÉl tÉÉªd) n. 1. a large, triangular muscle covering the joint of the shoulder, the action of which raises the arm away from the side of the body. adj. 2. pertaining to or involving the deltoid. 3. in the shape of a Greek capital delta (Î´); triangular.
The Morongo Basin is located centrally in the southern portion of the state of California in the United States. The Morongo basin is part of the Inland Empire area, and is considered to be the easternmost portion of the Greater Los Angeles region, the 2nd largest metropolitan region in the United States. Joshua Tree National Park lies within the basin.
Drainage basin (catchment area) is the area which supplies a river system, lake or reservoir with water. The whole area consists of smaller sub-catchments supplying tributaries of the main ri-ver and direct catchments, which drain straight into a lake or main river (Box 3.1).ts purpose is to co-nvey excess water from a drainage basin, which will include the products of weathering and addi-tional loads of solutes produced by man. This pro-perty makes a drainage basin an integrator and its operation is reflected in the quantity and quality of the river run-off.