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Light level geolocator. A red knot equipped with a GLS. A light level geolocator, light-level logger or global location sensor ( GLS) is a lightweight, electronic archival tracking device, usually used in bird migration research to map migration routes, identify important staging areas, and sometimes provide additional ecological information.
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes the absorption and scattering of radiation in a medium, such as a plasma, dielectric, shielding material, glass, etc. An opaque object is neither transparent (allowing all light to pass through ...
Light level geolocator, a lightweight electronic archival tracking device, usually used in bird migration. Geolocation, the identification of the real-world geographic location of an object. Geolocation software, software used to deduce the geographic location of another party. GPS navigation device, a device typically used in cars for navigation.
CGS units. 10−4 ph. The lux (symbol: lx) is the unit of illuminance, or luminous flux per unit area, in the International System of Units (SI). [ 1][ 2] It is equal to one lumen per square metre. In photometry, this is used as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface.
The birds' habit of returning to the same territory each year allows scientists in Hawaiʻi to attach tiny light level geolocator devices to the birds and retrieve them the following year in the same location. Such research showed that the birds made the 3,000 mi (4,800 km) nonstop flight between Alaska and Hawai'i in 3–4 days.
Lightmap. Cube with a simple lightmap (shown on the right). A lightmap is a data structure used in lightmapping, a form of surface caching in which the brightness of surfaces in a virtual scene is pre-calculated and stored in texture maps for later use. Lightmaps are most commonly applied to static objects in applications that use real-time 3D ...
At these locations around the world, cats are the star. It’s a tail as old as time. You’re in the right place at the right moment and the next thing you know, you’re living in the White ...
Using a tiny light-level geolocator biologists have proven that the black poll flies an average of 2540 km (2270 to 2770 km) non-stop over an average of 62 h, up to 3 days, corresponding to about 41 km/h. In 2013, 37 blackpolls from Vermont and Nova Scotia carried a miniaturized geolocator weighing 0.5 g with the harness on their back.