نتایج جستجو برای: upwelling
تعداد نتایج: 4540 فیلتر نتایج به سال:
Measurements of seafloor asymmetry at about 360000 pairs of conjugate points along 1250 profiles across the midAtlantic Ridge (MAR) provide new constraints on models for the upwelling of the buoyant asthenosphere. The sign and amplitude of the asymmetry vary systematically and are functions of the distance between the spreading center and the location of the inferred location of maximum regiona...
Traditionally, ocean upwelling has been studied mostly from observational data and analytical models of simpliied ow situations. In many areas of (geophysical) uid dynamics, numerical analysis has gradually gained importance and caught up with, if not bypassed, experimental simulations or observations. But, recent laboratory experiments show the very complicated nature of upwelling fronts and i...
important components affecting recruitment of fish populations. Successful recruitment depends on the planktonic stages being retained in, or transported to, nursery areas favourable for growth and survival. Advective loss of larvae into less favourable areas would clearly have a negative impact on recruitment (Iles and Sinclair 1982), particularly in upwelling systems where offshore loss of la...
A previously unknown giant sulfur bacterium is abundant in sediments underlying the oxygen minimum zone of the Benguela Current upwelling system. The bacterium has a spherical cell that exceeds by up to 100-fold the biovolume of the largest known prokaryotes. On the basis of 16S ribosomal DNA sequence data, these bacteria are closely related to the marine filamentous sulfur bacteria Thioploca, ...
Geochemical anomalies and growth discontinuities in Porites corals from western Sumatra, Indonesia, record unanticipated reef mortality during anomalous Indian Ocean Dipole upwelling and a giant red tide in 1997. Sea surface temperature reconstructions show that although some past upwelling events have been stronger, there were no analogous episodes of coral mortality during the past 7000 years...
[1] The effects of changing ice and atmospheric conditions on the upwelling of deep nutrient‐laden waters and biological productivity in the coastal Beaufort Sea were quantified using a unique combination of in situ and remote‐sensing approaches. Repeated instances of ice ablation and upwelling during fall 2007 and summer 2008 multiplied the production of ice algae, phytoplankton, zooplankton a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید