Land cover classification of polygonal tundra from small-format aerial photography, Samoylov Island (Lena Delta, Siberia), summer 2008, with link to ESRI grid files ...

• Main Authors: Muster, Sina, Langer, Moritz, Heim, Birgit, Westermann, Sebastian, Boike, Julia
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Aerial Photographs; Arctic Tundra; island; Lake/Pond; river delta; Multiple investigations; Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn; lena delta; permafrost; Tundra; Siberia
• Online Access: https://dx.doi.org/10.1594/pangaea.786136; https://doi.pangaea.de/10.1594/PANGAEA.786136

Polygonal tundra on Samoylov Island (Lena Delta, Siberia) was mapped from small-format aerial photography. Sub-metre resolution aerial images were obtained by mounting two Nikon D200 cameras on a helium-filled dirigible. Images were acquired in the visible (VIS) and near-infrared (NIR) ranges (together referred to as the VNIR range). The internal IR-filters were removed from the cameras in a laboratory (LPD LLC, USA), allowing them to capture a maximum range from about 330 to 1200 nm. A Schneider Kreuznach B+W 486 UV-IR cut filter was used for one of the cameras to obtain images in the VIS range, from about 400 to 690 nm, while the second camera was fitted with a Schneider Kreuznach B+W IR-filter 093 to acquire images in the NIR range, above about 830 nm. Flights took place at noon on sunny, cloudless days (August 1, August 9 and August 15, 2008). An average flying altitude of 750 m resulted in a pixel size of about 0.18 m. The aerial image data were processed using ENVI 4.7 image processing software. NIR ...