Encore - Standing Wave Over Mitchell County, North Carolina

August 11, 2018


Today and every Saturday Earth Science Picture of the Day invites you to rediscover favorites from the past. Saturday posts feature an EPOD that was chosen by viewers like you in our monthly Viewers' Choice polls. Join us as we look back at these intriguing and captivating images.

Photographer: Doug Sudduth
Summary Author: Doug Sudduth; Jim Foster

January 2013 Viewer's Choice The photo above features a lenticular wave cloud (at center) as viewed from Mitchell County, North Carolina, during the morning of January 9, 2013. The camera is looking south toward Mount Mitchell and the Black Mountain Range of western North Carolina. They're referred to as a standing wave cloud since they form at the wave crest in stationary air currents. The wave undulates but the crest (moist region) and trough (dry region) are generally pinned on the lee side of elevated terrain.

Photo Details: Canon SLR 50D; 28-135 Canon zoom lens; 200 ASA; ISO 8.0; exposures every 10 seconds for 15 minutes starting at 9:00 a.m.