A Lower Cambrian Edrioasterid, Stromatocystites Walcotti (with One Plate) Volume 70, No. 1 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...layers are driven by the wind into the fields covered bv our observations. 1 Notice that in our figures the curves for surface temperature minus air temperature are inverted. This transportation of cold water-masses from the north toward the south by the wind involves this peculiarity, that the more northerly water-masses are generally in consequence of their lower temperature of a higher density than the southerly and warmer water-masses. The northerly water-masses can there tore not be driven by the wind over the surface of the southern layers, but have a tendency to sink below them though obviously there is a tendency for these layers to mix by the action of the waves. Winds which bring colder water into the region of warmer will therefore not so easily produce considerable variations in the surface temperatures as winds which blow water in the reverse direction from warmer regions toward colder. On the other hand those winds which transport colder water towards warmer regions of the sea have a tendency to produce variations of the temperature in the upper layers of the ocean underneath the surface, since by such winds convection currents are set up in a vertical direction. But they have also the tendency to carry the warmer water-masses of the surface with them toward the south and to replace them with cooler. THE VARIATIONS IN HEIGHT OF THE WATER OF THE BALTIC SEA AS A PROOF OF THE ACTION OF THE WIND ON THE VARIATIONS OF THE SURFACE TEMPERATURE OF THE NORTH ATLANTIC That the winds are a strongly contributing cause of the observed variations in the surface temperature in the Atlantic Ocean seems to be shown by the notable agreement between the variations of the temperature condition of the Atlantic Ocean in February and the variations...