Detecting denning polar bears with forward looking infra-red imagery (FLIR)
Polar bears give birth in snow dens in mid winter, and remain in dens until early spring. Survival and development of neonates is dependent on the stable environment within the maternal den. Petroleum related activities currently span approximately 200 km of the Alaskan Beaufort Sea coastal area. New and proposed developments are expected to dramatically expand the area influenced by petroleum activities. These activities are a potential threat to polar bears, especially as they might disturb denning females.
In order to help manage and mitigate potential disruptions of polar bear denning, we tested whether we could detect heat, rising through the roofs of maternal dens, with forward-looking infrared (FLIR) viewing devices. We tested detectability of dens by flying transects, over habitats known to hold dens, with FLIR equipped aircraft. We recorded flight and weather conditions at each observation and tallied whether or not the den was detected.
|Publication type||Conference Paper|
|Publication Subtype||Conference Paper|
|Title||Detecting denning polar bears with forward looking infra-red imagery (FLIR)|
|Series number||MMS 2003-042|
|Publisher||Minerals Management Service|
|Contributing office(s)||Alaska Science Center|
|Larger Work Type||Book|
|Larger Work Subtype||Conference publication|
|Larger Work Title||Ninth information transfer meeting and Barrow information update meeting: Final proceedings (MMS 2003-042)|
|Conference Title||Ninth Information Transfer Meeting and Barrow Information Update Meeting|
|Conference Location||Anchorage, AK|
|Conference Date||March 10-12, 2003|
|Google Analytic Metrics||Metrics page|