Many recent studies reveal that sea ice concentration (SIC) in the eastern Arctic and snow cover extent (SCE) over central Eurasia in late autumn are potential predictors of the winter North Atlantic Oscillation (NAO). We used maximum covariance analysis (MCA) to investigate the links between autumn SIC in the Barents-Kara Seas (BK) and SCE over Eurasia (EUR) with winter (DJF) sea level pressur...

The long-term sea level change during 1993 – 2008 is investigated in the Malaysian Seas from satellite altimetry data of the Topex, Jason-1, ERS-1, ERS-2 and Envisat missions. During the past two decades, satellite altimeter has provided its capability in measuring the global mean of sea level with precision better than 1 mm/year. Sea level data retrieval and reduction were carried out using Ra...

Owing to climate change, according to annual Intergovernmental Panel on Climate Change (IPCC) reports, sea level rise is inevitable. The sea level rise in different parts of the coastal areas in the world continents, may be calculated and thus predicted for ten years in the future, a hundred years out and beyond, with decreasing confidence. Amongst experts, the amount of sea level rise at diffe...

Ocean surface waves (sea and swell) are generated by winds blowing over a distance (fetch) for a duration of time. In the Arctic Ocean, fetch varies seasonally from essentially zero in winter to hundreds of kilometers in recent summers. Using in situ observations of waves in the central Beaufort Sea, combined with a numerical wave model and satellite sea ice observations, we show that wave ener...

[1] Annually integrated measurements of pCO2 have demonstrated that seasonally stratified regions of temperate shelf seas can be an important sink of atmospheric CO2. A key process to support this sink is the transport of carbon from shelf seas to below the permanent pycnocline of the deep ocean. Using a hydrodynamic model simulation of the northwest European Continental shelf, we find that bot...

Data from a research tower in Lake Ontario are used to study the validity of MoninObukhov scaling in the marine atmospheric boundary layer under various wave conditions. It is found that over pure wind seas, the velocity spectra and cospectra follow established universal scaling laws. However in the presence of swells outrunning weak winds, velocity spectra and co-spectra no longer satisfy univ...

The morphologic and genetic variations of Engraulis encrasicolus (L. 1758) were studied based on morphometric, meristic and allozyme analyses. Samples were collected throughout the Black, Marmara and Aegean Seas. Discriminant function analysis of both morphometric and meristic characters indicated the existence of four morphologically differentiated groups of E. encrasicolus. The Aegean Sea and...

powered by The constellations of the Milky Way have been guiding our ancestors for thousands of years. The stars have helped us to navigate, govern the seas and discover new lands. In the rise of the 21st century discovery, communication and navigation are still prominent to the advancement of our kind. The new means to humanity’s eternal goals are smartphone devices powered with sensors, advan...

Advection-dispersion equation is solved in numerically by using combinations of differential quadrature method (DQM) and various time integration techniques covering some explicit or implicit single and multi step methods. Two different initial boundary value problems modeling conservative and nonconservative transports of some substance represented by initial data are chosen as test problems. ...

During hundreds of student interviews, we have seen students engage in productive science-like exploration with PhET Interactive Simulations (sims). Recently we have been working to determine what specific features of PhET sims are necessary to make them effective learning tools. In this study, we compare differences in student learning and sim investigation when the sim either shows or hides r...