The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . on. The daily march of cloudiness isclosely coordinated. Quotations from Mr. Littles field notes fol-low: In the morning there is seldom any noticeable wind. Abreeze starts at 10 a. m., generally about 180° (i. e. due south),increases to 2 or 3 velocity at noon, having veered some 25° to thesouthwest. It reaches a maximum velocity of 3 to 4 at about m., now coming about 225° (i. e. southwest). By 6 p. m. the wind 2 This is the elevation obtained by the Peruvian Expedition. Raimondis figure(1,832 m
The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . on. The daily march of cloudiness isclosely coordinated. Quotations from Mr. Littles field notes fol-low: In the morning there is seldom any noticeable wind. Abreeze starts at 10 a. m., generally about 180° (i. e. due south),increases to 2 or 3 velocity at noon, having veered some 25° to thesouthwest. It reaches a maximum velocity of 3 to 4 at about m., now coming about 225° (i. e. southwest). By 6 p. m. the wind 2 This is the elevation obtained by the Peruvian Expedition. Raimondis figure(1,832 m.) is higher. 136 THE ANDES OF SOUTHERN PERU has died down considerably and the evenings are entirely freefrom it. The wind action is about the same every day. It is nota cold wind and, except with the fog, not a damp one, for I havenot worn a coat in it for three weeks. It has a free unobstructedsweep across fairly level pampas. . At an interval of everythree or four days a dense fog sweeps up from the southwest,dense enough for one to be easily lost in it. It seldom makes even. Fig. 88—Wind roses for a station on the eastern border of the Coast Desert nearCaraveli during the summer (January to March) of 1913. Compare with Fig. diameter of the circle in each case represents the proportion of calm. Note thecharacteristic morning calm. a sprinkle of rain, but carries heavy moisture and will wet a manon horseback in 10 minutes. It starts about 3 p. m. and clearsaway by p. m. . During January, rain fell in camp twiceon successive days, starting at p. m. and ceasing at p. was merely a light, steady rain, more the outcome of a densefog than a rain-cloud of quick approach. In Caraveli, itself, I amtold that it rains off and on all during the month in short, lightshowers. This record is dated early in February and, in laternotes, that month and March are recorded rainless. Chosica (elevation 6,600 feet), one of the meteorological sta-tions of the Harvar
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Keywords: ., bookauthorbo, bookcentury1900, bookdecade1910, booksubjectgeology
