Laserfiche WebLink
<br />will reveal the difference in exposed substrate or wetted perimeter <br />(fig. 2). This is photographic "regression analysis." An 8 - 10 hour <br />interval will nonnally be sufficient to negate any appreciable differences <br />in flow levels due to bank storage. <br /> <br />~ <br /> <br />Pictures may be the best data you will collect for selling your <br />recomnendations to the general public, administrators of construction <br />agencies managing water development projects, and judges or juries <br />adjudicating water laws. Black and white photographs and 35 rrm. slides <br />of key habitat types (e.g., riffles, runs, pools, islands and bars) <br />from elevated vantage points like bridges and high stream banks will <br />give results superior to ground level shots or photos from aircraft <br />high above the stream. Record appropriate, vital infonnation on all <br />photographs and slides as soon as they are received. <br /> <br />'" <br /> <br />5 <br />