Aerial photography from the Casey region taken during January 2011 used for Adelie penguin analysis

• Other Authors: SOUTHWELL, COLIN (hasPrincipalInvestigator), SOUTHWELL, COLIN (processor), EMMERSON, LOUISE (hasPrincipalInvestigator), EMMERSON, LOUISE (processor), NEWBERY, KYM (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: biota; imageryBaseMapsEarthCover; PENGUINS; EARTH SCIENCE; BIOLOGICAL CLASSIFICATION; ANIMALS/VERTEBRATES; BIRDS; Aerial Photography; Casey; Cronk Group; Frazier Group; Windmill Islands; Adelie Penguins; Cameras; Aircraft; CONTINENT > ANTARCTICA; GEOGRAPHIC REGION > POLAR; Casey Station; Cronk Island; Frazier; Frazier Island; Adelie penguin; Antarc*; Antarctica
• Online Access: https://researchdata.ands.org.au/aerial-photography-casey-penguin-analysis/699235; https://data.aad.gov.au/metadata/records/Adelie_Aerial_Photography_Casey20102011; http://nla.gov.au/nla.party-617536

Aerial photographs were taken at 3 islands in the Cronk group and 3 islands in the Frazier group of the Windmill islands where occupancy surveys in 2010-11 found breeding Adelie penguin populations. The photographs were taken to estimate the size of breeding Adelie penguin populations. Photographs of the Cronk Island group were taken on the 2 January 2011. One flight was made along a northeast-southwest direction across the three main islands, Hollin, Midgley and Beall (see below). The flight started at 02:10:23 UTC and finished at 03:40:45 UTC. The SkyTraders crew were the flight and camera operators. The daily weather observations from Casey Station for 2 January 2011 were 14.0 hour of sunlight, winds from the North at 6-13 knots and 2/8 cloud cover. Photographs of the Frazier Island group were taken on the 23 January 2011. Aerial photos were taken from a CASA C212 airplane (VHA) flying at ~140 knots and ~750m altitude using a Nikon D200 camera with a 55 mm real lens which is converted to a 75 mm lens (including the focal length magnification factor of 1.5 for non-35mm format). The Nikon D200 camera was set to normal which allows for varied speed and aperture and was set on autofocus. A 3-second shutter closure interval was programmed using an external intervalometer. All photographs were recorded on the cameras internal memory card and downloaded after the flight was over.