Wind assistance for six swifts Apus apus during spring migration calculated for four different pressure levels (925, 850, 700 and 500 hPa, respectively) representing altitudes 750 m, 1500 m, 3000 m and 5000 m, respectively.
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Tailwinds are shown in normal font and headwinds are shown in bold font.*Did not make stopover in Liberia.
创建时间:
2015-12-02




