downwelling


Also found in: Encyclopedia, Wikipedia.

downwelling

the downward movement of surface waters caused by the convergence of water masses or by waters meeting a coastline.
References in periodicals archive ?
A total of eight flights were conducted for radiation closure studies (Table ES9), including two dedicated calibration flights, which are necessary for correcting shortwave downwelling radiation measurements affected by the aircraft pitch-and-roll offsets and the offset of the radiometers relative to the aircraft.
To promote settlement, competent pediveliger larvae were transferred to downwelling circular systems (30 cm height and 50 cm diameter) with a mesh base (pore size of 150 [micro]m) containing Striostrea prismatica shell fragments ([approximately equal to]0.
The separation between sablefish stocks along the coast of Vancouver Island occurs at the boundary between the California Current upwelling ecosystem to the south and the Gulf of Alaska downwelling ecosystem to the north.
Net downwelling infrared radiation (IR) was measured using Kipp & Zonen CG4 pyrgeometer located at NREL's Solar Radiation Research Laboratory's weather station to characterize the cloud cover at night.
2]) of up-and downwelling longwave radiation recorded at Tartu-Toravere meteorological station of the Estonian Environment Agency (58[degrees]16'N, 26[degrees]28'E, h = 70 m a.
Along a single riffle-pool alternation, surface water enters the HZ in a downwelling area at the riffle head (or at the end of a pool), and hyporheic water returns to stream surface in an upwelling area at the riffle tail (or at the head of a pool) after travelling in the HZ (Thibodeaux and Boyle, 1987; Boulton et al.
Option To Measure Downwelling Infrared Radiation (broad Band)
From 9 May to 26 June, the spectral distribution of incident downwelling irradiance 1 m above the snow surface ([E.
Some hatchlings and post-hatchling turtles then associate with flotsam, such as Sargassum communities and downwelling lines (Carr and Meylan, 1980; Witham, 1980; Carr, 1986; Coston-Clements et al.
The infrared data also resolved brown, elongated features in the whitened area called "brown barges" as distinct features and revealed them to be regions clearer of clouds and probably characterized by downwelling, dry air.
In a region south of Greenland, which is called the downwelling region, water can get cold and salty enough -- and thus dense enough -- so the water starts sinking.
In either case, the truncation of downwelling light is nevertheless a persistent component regulating the environmental conditions experienced and accommodated by photosynthetic organisms in Laguna Guatavita.