TERN Warra Tall Eucalypt SuperSite Panoramic Photopoint Image Collection

High quality digital images are captured using a digital SLR camera at the plots (core 1 hectare vegetation plot) at the TERN Warra Tall Eucalypt SuperSite using the panoramic photopoint method. The panoramic photopoint method may be the most informative in open forests/woodlands and rangelands. Three photopoints are established configured in an equilateral triangle (2.5m sides) with the centre marked with a star dropper and the location recorded with DGPS. At each photopoint take photographic sequences in a 360° panorama, with up to 40 photographs with a minimum 50% overlap between consecutive photographs. For more information about the method, see
White, el al. (2012) AusPlots Rangelands Survey Protocols Manual Version 1.2.9.

The Warra Tall Eucalypt SuperSite was established in 2012 and is located in a stand of tall, mixed-aged Eucalyptus obliqua forest (1.5, 77 and >250 years-old) with a rainforest / wet sclerophyll understorey and a dense man-fern (Dicksonia antarctica) ground-layer. The site experienced a fire in January 2019, which consumed the ground layer and killed a high proportion of the understorey trees but stimulated dense seedling regeneration. For additional site information, see https://www.tern.org.au/tern-observatory/tern-ecosystem-processes/warra-tall-eucalypt-supersite/.

Other images collected at the site include digital hemispherical photography, phenocam time-lapse images taken from fixed under and overstorey cameras, five-photopoint images, and ancillary images of fauna and flora.

本数据集采用数码单反相机，通过全景摄影点法，在TERN Warra高大桉树超级站点的核心1公顷植被样地内采集高质量数码影像。全景摄影点法在开阔森林、林地与牧场中堪称信息获取最为全面的影像采集方案。本次共布设3个摄影点，以边长2.5米的等边三角形布局，中心点采用星状定位桩标记，并通过差分全球定位系统（DGPS）记录点位坐标。在每个摄影点处需采集360°全景影像序列，连续影像间的重叠度不低于50%，单序列影像最多可达40张。有关该采集方法的详细说明，请参阅White等人（2012）发布的《AusPlots牧场调查规程手册（AusPlots Rangelands Survey Protocols Manual）》版本1.2.9。

TERN Warra高大桉树超级站点始建于2012年，坐落于由1.5年、77年及250年以上林龄的高大斜桉（Eucalyptus obliqua）组成的混交林分中，林下植被涵盖雨林与湿硬叶灌丛，地表覆盖有密集的南极蚌壳蕨（Dicksonia antarctica）。该站点曾于2019年1月遭遇火灾，地表植被被完全焚毁，多数林下树木死亡，但同时触发了密集的幼苗更新过程。如需获取该站点的更多详细信息，请访问：https://www.tern.org.au/tern-observatory/tern-ecosystem-processes/warra-tall-eucalypt-supersite/。

本站点采集的其他影像类型还包括数码半球摄影影像、由固定安装于林下与林冠层的物候相机（phenocam）采集的延时摄影影像、5个摄影点全景影像，以及动植物辅助观测影像。