In the Canada Basin of Arctic Ocean, warm and salty Atlantic-origin Water (AW) lies in intermediate layer (250 m–800 m) below a colder fresher surface layer. It results depth range where vertical thermohaline gradients are propitious to double-diffusion. Indeed, staircases commonly observed associated with double-diffusive processes. Using observations from Beaufort Gyre Exploration Project lar...

Introduction: Natural materials are more efficient and attractive than synthetic materials. In this study, the sound absorption behavior by natural kenaf composite and Micro-Perforated Panel (MPP) at low and medium frequency region was investigated. Material and Methods: Initially, the results of kenaf fibers with a thickness of 10 mm were validated by the Finite Element Method (FEM) based on ...

Abstract Steel sheet pile walls are being widely used in civil engineering projects for support systems. Soil is not uniform in depth, sometimes may be exit loose or soft soil layer in various depth. This issue can cause different effects on ground surface displacements, forces and moments acting on sheet piles and struts during excavation procedure, compared with status that soil is uniform...

The epiplankton community was investigated during Meduza cruises along south north and offshore – inshore transects in the middle and southern Adriatic in spring 2002. The diel and vertical distribution of heterotrophic bacteria, phytoplankton pigment composition, microand mesozooplankton were assessed. At most stations we observed a thermocline at approximately 20 m and a prominent chlorophyll...

Abstract. TEX86 is a paleothermometer based on Thaumarcheotal glycerol dialkyl tetraether (GDGT) lipids and one of the most frequently used proxies for sea-surface temperature (SST) in warmer-than-present climates. However, GDGTs are not exclusively produced exported from mixed layer, so sedimentary may contain depth-integrated signal that also sensitive to local subsurface variability. In addi...

The response of a thermocline gyre to anomalies in surface wind stress forcing and surface buoyancy forcing is investigated in light of planetary wave dynamics, both analytically and numerically. The author’s theory suggests that anomalous Ekman pumping most efficiently generates the non-Doppler-shift mode, which resembles the first baroclinic mode and has the clearest signal in the sea surface...

Anthropogenic emissions of nitrogen (N) to the atmosphere have been strongly increasing during the last century, leading to greater atmospheric N deposition to the oceans. The North Atlantic subtropical gyre (NASTG) is particularly impacted. Here, upwind sources of anthropogenic N from North American and European sources have raised atmospheric N deposition to rates comparable with N2 fixation ...