The ecology of Pacific Northwest coastal sand dunes
The ecology of Pacific Northwest coastal sand dunes
The ecology of Pacific Northwest coastal sand dunes
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Number<br />
FIGURES<br />
Page<br />
1 Location <strong>of</strong> the <strong>Pacific</strong> <strong>Northwest</strong><br />
Coastal Region ................................................ 3<br />
<strong>The</strong> <strong>sand</strong> dune lacalities <strong>of</strong> the <strong>Pacific</strong><br />
<strong>Northwest</strong> Coastal Region ..................................*.*.... 5<br />
Exposure <strong>of</strong> Pleistocene <strong>sand</strong> ..................................... 9<br />
Wind regimes for two locations along the <strong>Pacific</strong><br />
<strong>Northwest</strong> coast ... ........................................... 11<br />
<strong>The</strong> development <strong>of</strong> <strong>coastal</strong> fogs .................................. 11<br />
Ocean currents along the <strong>Pacific</strong> <strong>Northwest</strong> coast ................. 14<br />
Longshore or I ittoral. currents .....*.................... 15<br />
Rip currents ..................................................... 15<br />
Cross section through a dune aquifer ............................. 16<br />
Transverse ridge zone ...........e...............~t....I.......... 24<br />
Transverse ridge. side view . ...........+................#...*... 24<br />
Transverse ridge trend and movement .............................. 25<br />
Transverse dune system ........................................... 26<br />
Oblique dune mavcment ............................................ 27<br />
Foredune.. ....................................................<br />
28<br />
Foredune formed by native plant species ............ . 29<br />
Retention ridge .................................................. 30<br />
Parabola dune system ..............e...*.*..........e.e*..........<br />
31<br />
Parabola <strong>dunes</strong> at Sand take. ..................................... 32<br />
Sand humocks farnted by European beachgrass ................*.* .. 33