File:The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian (1916) (14759599246).jpg

Identifier: andesofsouthernp00 (find matches)
Title: The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian
Year: 1916 (1910s)
Authors: Bowman, Isaiah, 1878-1950 American Geographical Society of New York
Subjects: Yale Peruvian Expedition (1911) Physical geography Geology Human geography
Publisher: (New York) Pub. for the American Geographical Society of New York by H. Holt and Company
Contributing Library: Wellesley College Library
Digitizing Sponsor: Boston Library Consortium Member Libraries

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idge, Mass., 1906. Observations for an earlier period, Feb.1889-March 1890, (Id. Vol. 39, Pt. 1, Cambridge, Mass. 1899) record S. E. wind at2 p. m. 97 per cent of the observation time. gradients by night. To this circumstance, in combination withthe low temperature of the ocean water and the direction of theprevailing winds, is due the remarkable development of the sea-breeze, without exception the most important meteorological fea-ture of the Peruvian Coast. Several graphic representations areappended to show the dominance of the sea-breeze (see wind roses 130 THE ANDES OF SOUTHERN PERU for Callao, Mollendo, Arica, and Iquique), but interest in thephenomenon is far from being confined to the theoretical. Every-where along the coast the vira&on, as the sea-breeze is called incontradistinction to the terral or land-breeze, enters deeply intothe affairs of human life. According to its strength it aidsor hinders shipping; sailing boats may enter port on it or it 7 a.m. N OCT.-MARCH N
Text Appearing After Image:
Fig. 80—Wind roses for the summer and winter seasons of the years 1911-1913.The diameter of the circle in each case shows the proportion of calm. Figures aredrawn from data in the Anuario Meteorologico de Chile, Publications No. 3, (1911),.6 (1912) and 13 (1913), Santiago, 1912, 1914, 1914. may be so violent, as, for example, it commonly is at Pisco,,that cargo cannot be loaded or unloaded during the afternoon.On the nitrate pampa of northern Chile (20° to 25° S.) it notinfrequently breaks with a roar that heralds its coming anhour in advance. In the Majes Valley (12° S.) it blows gustilyfor a half-hour and about noon (often by eleven oclock) itsettles down to an uncomfortable gale. For an hour or two CLIMATOLOGY OF THE PERUVIAN ANDES 131 before the sea-breeze begins the air is hot and stifling, anddust clouds hover about the traveler. The maximum tempera-ture is attained at this time and not around 2.00 p. m. as is nor-mally the case. Yet so boisterous is the noon wind that the

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