GCNP: Water Temperature & Flow Variationsの無料動画を見ましょう

(88.9 MB) 13 May 2016に追加されました 201 回再生しました Nature
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GCNP: Water Temperature & Flow Variations

アニメーションの説明:

What you need to know to deal with cold Colorado River water, treating hypothermia, and how water level fluctuations will effect the way you camp by the river.

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