Theory predicts and recent study revealed that depth of the thermocline can strongly influence the nutrient availability and composition of plankton communities. We are focused on the effect of metalimnetic gradients on water chemistry and plankton communities in three stratified lakes with different trophic conditions. Vertical changes in water chemistry revealed significant increase of macroe...

This study describes the turbulent processes in the upper ocean boundary layer forced by a constant surface stress in the absence of the Coriolis force using large-eddy simulation. The boundary layer that develops has a two-layer structure, a well-mixed layer above a stratified shear layer. The depth of the mixed layer is approximately constant, whereas the depth of the shear layer increases wi...

Abstract. According to the typical thermal structure of ocean, water column can be divided into three layers: mixed layer, thermocline and deep layer. In this study, we provide a new methodology, based on function adjustment temperature profile, locate minimum maximum depths strongest thermocline. We first validated our methodology by comparing layer depth obtained with method proposed here oth...

nowadays, in consideration of environmental issues and limitation of fossil fuels, there is a particular consideration of renewable energy including ocean energy, that can extracted going through various methods such as wave energy, tidal energy, salinity gradient, otec: ocean thermal energy conversion.herein this research, operation of otec method in southern caspian sea has been discussed. fo...

mean tropical state driving El Niño events for this analysis. Table 1 shows that knowledge of these quantities averaged over a 50-year window is not sufficient to determine the ENSO variability over the same window–developing more sophisticated metrics is a crucial goal of the proposed research. Nonetheless, simple lag-correlation analysis of NINO3 index and eastern Pacific thermocline depth (l...

The non-sorted circle pattered ground features are abundant in the Arctic tundra. These features show large variability in active layer depth in summer and heave in winter. There is a lot of research devoted to measuring active layer depth, yet little is know about small scale variability of the active layer in patterned ground systems. Active layer is sometimes used an indicator of a warming c...

[1] Using an ocean general circulation model, we find that the vertical profile of the Indonesian Throughflow (ITF) transport is important in regulating the stratification and surface heat fluxes of the Indian Ocean. With the same total ITF transport, a thermocline-intensified ITF, relative to a surface-intensified ITF, not only cools the surface layer of the Indian Ocean while warming the Indi...

Lake Analyzer is a numerical code coupled with supporting visualization tools for determining indices of mixing and stratification that are critical to the biogeochemical cycles of lakes and reservoirs. Stability indices, including Lake Number, Wedderburn Number, Schmidt Stability, and thermocline depth are calculated according to established literature definitions and returned to the user in a...