Lake Michigan Coastal Dunes
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Lake Michigan Coastal Dune Home
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Research Methods - Site Observations


We record the surface conditions at dune research sites with photographs, notes and sketches. In all seasons, we record if sand is moving while we are at the site.

Summer records include the condition of the vegetation and the presence of ripples which indicate recent sand movement.

Autumn records include visible variations in moisture across the beach and dunes and interesting features like sand pillars or adhesion ripples. We also record patterns of recent sand movement such as streamlined deposits of sand.

Winter records include the areas of exposed sand, snow cover, niveo-aeolian deposits and surface ice. We measure snow depths and record whether exposed sand is frozen or not. We use erosion pins as reference markers for our observations.

Spring records include areas of melting snow, thawing niveo-aeolian deposits, and evidence of mass wasting (slumping, sliding) as slopes adjust to warm conditions.

Summer observations on foredune.
Recording vegetation characteristics on foredune in summer.
(Hoffmaster State Park in June 2005).
Winter observations on foredune.
Recording snow depths and niveo-aeolian deposit patterns on foredune in winter. (Hoffmaster State Park in February 2005.)

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Last updated 03/23/10.