The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . January February March April May July September October 3123 21 Total WIND An analysis of the wind at Santa Lucia shows an excess ofnorth and south winds over those of all other directions. Thewind-rose for the entire period of observation (Fig. 104) clearlyexpresses this fact. When this element is removed we observe astrongly seasonal distribution of the wind. The winter is the timeof north and south winds. In summer the winds are chiefly f


The Andes of southern Peru, geographical reconnaissance along the seventy-third meridian . January February March April May July September October 3123 21 Total WIND An analysis of the wind at Santa Lucia shows an excess ofnorth and south winds over those of all other directions. Thewind-rose for the entire period of observation (Fig. 104) clearlyexpresses this fact. When this element is removed we observe astrongly seasonal distribution of the wind. The winter is the timeof north and south winds. In summer the winds are chiefly fromthe northeast or the southwest. Among single months, Augustand February show this fact clearly as well as the less decisivecharacter of the summer (February) wind. The mean wind velocity for the month of February was 540meters per minute for the morning and 470 meters per minute forthe afternoon. The higher morning rate, an unusual feature of 8 The record is copied literally without regard to the absurdity of the secondand third decimal places. METEOROLOGICAL RECORDS 167 JUNE, 1913. OCT FEB


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Keywords: ., bookauthorbo, bookcentury1900, bookdecade1910, booksubjectgeology