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The night sky in the World - Pierantonio Cinzano
(DEM). The ... time consuming, in particular if the line of sight is not vertical and requires computation for each of its points. Darker areas (white ... for clean atmosphere with aerosol clarity K=1, corresponding to a vertical extinction in V band of 0.33 mag at sea level (0 ...
lightpollution.it

Maps of night sky brightness - Light pollution in italy - Pierantonio Cinzano Web pages
K=1(Garstang 1986, 1989), corresponding to a vertical extinction in photometrical V band of 0.33 mag at sea level (0.21 mag at ... measured by the Operational Linescan System of US Air Force DMSP satellites. We account for extinction along light paths, double scattering of light from atmospheric molecules and aerosols, Earth curvature and ...
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Biodiversity Conservation in Britain: Science Replacing Tradition
Habitat diversity is hard to measure, and should include the vertical (architectural) complexity, the availability of cover, as well as the number of successional stages, ... T, 1992 Fragmentation of Phragmites habitats. minimum viable population sizes, habitat suitability and local extinction of moths, midges, flies, aphids and birds. Conservation Biology 6: 530.536 Usher, M ...
www.eco-action.org

The Regional Impacts of Climate Change
(Hecky et al., 1994). Since then, warming has created a barrier to vertical circulation. Additional warming could strengthen this barrier and reduce the mixing of deep, nutrient-rich ... their catchment areas. The loss of small wetlands may lead to a significant risk of extinction for local populations of turtles and small birds (Gibbs, 1993), although taxa that are easily ...
www.grida.no

IISG Projects - Habitats & Ecosystems
Summary of Progress: The purpose of our study is to determine whether the local extinction of mottled sculpin could be caused by round gobies interfering with spawning and determine whether ... suspect that female round gobies use their fused "suction-cup" pelvic fins to attach to vertical walls and high ceilings during egg deposition. Because it is difficult to attach to corners ...
www.iisgcp.org

Architectural Salvage in Canada - Salvage Ontario
Furthermore, when interdependent parties establish a course of dealing forming a vertical infrastructure capped by a merchant who retails the public, the resulting commerce is an industry ...
www.legacyvintage.com

Champ of Lake Champlain
Body described as having a long neck, snake-like body, a long tail, with a vertical range of motion and has a point to it. The creature ranges from 15 to ... be. Theories abound. One theory suggests that Champ is a dinosaur that managed to escape extinction and lives on in Lake Champlain. Another suggests that the creatures could be surviving zeuglodons ...
lclt.org

Planetary Ejections and Cratering
Fields. Even the iridium layer of the Cretaceous-Tertiary Boundary, the time of the dinosaurs extinction, spreads around the world along mid-latitudes (the Fields are along the mid-latitudes). The ... eyewitness accounts comments: "The explosion was observed from many points in the form of a vertical fountain." Such a description sounds more like the release of energy from the Earth than ...
livingcosmos.com

Air Sea Interaction Laboratory of IO PAS
Grabowski J, Papayannis A, Zielinski T "Preliminary results of lidar based studies of the aerosol vertical distribution in the lower troposphere over urban coastal areas" OCEANOLOGIA 46 (3): 347-364 2004 ... Baltic cruise - May 2000" OCEANOLOGIA 44 (3): 339-354 2002 Zielinski T, Zielinski A "Aerosol extinction and aerosol optical thickness in the atmosphere over the Baltic Sea determined with lidar" J ...
www.iopan.gda.pl

CHAMP - Coral Reef Biology - NOAA's Coral Health and Monitoring Program
Aside from their awe-inspiring vertical relief, coral reefs are an oasis of nutrients and food in oligotrophic tropical waters. The ... . antillarum in the Western Atlantic. An explanation that has been put forth for the ecological extinction of this keystone specie is that due to severe overfishing, populations of D. antillarum were ...
www.coral.aoml.noaa.gov