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Rather, the primary source of nitrate into the estuary is from ocean exchange caused by wind-driven seasonal upwelling off the Oregon and Washington coasts. [8] This influx of nitrate, generally the primary limiting nutrient to biological communities in the estuary, is an important driver of primary productivity in estuarine plumes of river ...
Examples include upwellings around the Galapagos Islands and the Seychelles Islands, which have major pelagic fisheries. [4] Upwelling could occur anywhere as long as there is an adequate shear in the horizontal wind field. For example when a tropical cyclone transits an area, usually when moving at speeds of less than 5 mph (8 km/h). The ...
The upwelling front is accompanied by a geostrophic upwelling jet. During the summer upwelling season, the southward flowing jet off of central Oregon lies mid-shelf at approximately the 100-m isobath. [14] Its near-surface speed averages 0.35 m/s, with individual events exceeding 0.80 m/s. [15] This is faster than the surrounding water ...
A June 1990 aerial photo of Yaquina Bay in Newport, Oregon. Yaquina Bay (/ j ə ˈ k w ɪ n ə / yə-KWIN-ə) is a coastal estuarine community found in Newport, OregonYaquina Bay is a semi-enclosed body of water, approximately 8 km 2 (3.2 mi 2) in area, with free connection to the Pacific Ocean, but also diluted with freshwater from the Yaquina River land drainage.
The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of four states. The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt provinces on Earth, covering over 210,000 km 2 (81,000 sq mi) mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada. [1]
Download as PDF; Printable version; ... Rivers of Oregon (11 C, 390 P) S. Springs of Oregon (2 C, 6 P) Pages in category "Bodies of water of Oregon"
The Oregon Water Resources Department (WRD) is the chief regulatory agency of the government of the U.S. state of Oregon responsible for management of all surface and ground water in the state, which by statute belongs to the public. The department’s primary activities include protection of existing water rights, facilitation of voluntary ...
Download as PDF; Printable version; ... Bodies of water of Oregon (7 C, 1 P) D. Dams in Oregon (4 C, ... Oregon Water Resources Department; R.