The tropospheric response to midlatitude SST anomalies has been investigated through a series of aquaplanet simulations using a high-resolution version of the Hadley Centre atmosphere model (HadAM3) under perpetual equinox conditions. Model integrations show that increases in the midlatitude SST gradient generally lead to stronger storm tracks that are shifted slightly poleward, consistent with...

The velocity and mixing field of two coaxial jet configurations has been experimentally characterized by means of hotand cold-wire anemometry to investigate the effect of the initial conditions on the flow development, and to determine the leading processes in the “mixing transition” of the two streams. Amongst the possible operating conditions, four configurations with different inner and oute...

in this paper a new process is presented for improving efficiency of cyclone de-dusting systems. the cyclone is coupled with a specially designed cylindrical chamber which includes a rotating tube inside it with air impinging nuzzles, drilled on the peripheral surface of the tube. the nuzzles help in pushing and throwing the particles to the outer radius distances during downward flow of dust i...

Influence of springtime surface condition over Siberia upon subsequent summertime blocking activity over northeastern Siberia, and the Okhotsk sea is examined. It is found that when the surface temperature over Siberia is high in April (the high years), blocking events over northeastern Siberia, and the Okhotsk sea in May and June, occur more frequently than climatology. In the high years, a je...

Abstract. We report on a set of laboratory experiments to investigate the effect polar warming mid-latitude jet stream. Our results show that progressive decrease in meridional temperature difference slows down eastward propagation stream and complexifies its structure. Temperature variability decreases relation “Arctic warming” only at locations representing Earth's mid-latitudes, which are in...