Eastern Geographic Science Center
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Reston PhenoCam
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Images like those shown on this page are used in landscape phenology research. The Reston PhenoCam is one of two operated by the USGS in Virginia (follow this link for the other camera in the Shenandoah National Park). These cameras are used in the development of satellite-based vegetation monitoring methods. The images of the ground, shrub, and forest canopy conditions (for example, presence and absence of leaves and leaf color), are compared with vegetation measurements made from satellite imagery (right-top). Hemispherical photographs of the canopy (right-bottom) taken | periodically during field data collection are also analyzed and compared against PhenoCam and satellite image data. PhenoCam images also record the timing of other biological events, such as bud formation and burst that, while not detectable by satellites, provide an image archive of use to biologists conducting phenology research. The ultimate goal is to uncover and understand potential impacts of climate change on eastern forest vegetation, hydrology, and habitats. |
PhenoCam![]() The Webcam is updated every 30 minutes 10am to 4:30pm. Larger view... Animations Showing PhenoCam ViewsOnce the camera has been operated for a sufficient period, animations that show spring and fall phenology will be posted here (check back often!). Examples from the Shenandoah PhenoCam are currently provided:![]() ![]() ![]() ![]() ![]() |
Satellite![]() A August 12, 2012, Landsat image accessed via GLOVIS. Canopy View![]() March 7, April 25, and October 23, 2012: Periodic photographs are taken from beneath the canopy in Reston, Virginia, using a skyward-facing, fish-eye lens that can be used to measure when leaves come out and how much tree cover exists at specific locations. Larger view... |