Estimation of walrus populations on sea ice with infrared imagery and aerial photography

• Published in: Marine Mammal Science
• Main Authors: Udevitz, Mark S., Burn, Douglas M., Webber, Marc A.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2007
• Subjects: Odobenus rosmarus; Sea ice; St Lawrence Island; Alaska; walrus*
• Online Access: http://dx.doi.org/10.1111/j.1748-7692.2007.00169.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2007.00169.x; https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2007.00169.x

Abstract Population sizes of ice‐associated pinnipeds have often been estimated with visual or photographic aerial surveys, but these methods require relatively slow speeds and low altitudes, limiting the area they can cover. Recent developments in infrared imagery and its integration with digital p...