'National park fund' diaporamas de présentation

Weather Patterns of the Pacific Coast

Weather Patterns of the Pacific Coast. Rain and Snowfall Patterns. Water from the Sky. Topographic Lifting, Condensation, and Rainfall. Clouds form anytime that moist air rises and cools below the dew poin t . As the water droplets get larger, some get so heavy, they fall to the sky as rain.

311 views • 13 slides

Fisheries Collapses

Fisheries Collapses. Technology and Food Demands. Escapement Rate and Harvests. The biggest threat to recovery is open ocean harvest. Nearly 70% of salmon harvested are in Canadian waters. 10% are harvested in Alaskan waters, while only 8.5% are harvested commercially in Washington.

218 views • 12 slides

Sediment Deposition and River Structures

Sediment Deposition and River Structures. Deposition of Large Materials. Once rivers reach lower gradients, their erosional power decreases and their ability to carry sediment downstream also decreases. With low flows, rivers deposit larger material, forming cobble banks and gravel bars.

315 views • 11 slides

Fish Hatcheries

810 views • 10 slides