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HAWC August 14, 2014 HAWC with the Pico de Orizaba in the background, August 2014. The High Altitude Water Cherenkov Experiment or High Altitude Water Cherenkov Observatory (also known as HAWC) is a gamma-ray and cosmic ray observatory located on the flanks of the Sierra Negra volcano in the Mexican state of Puebla at an altitude of 4100 meters, at
As the first high-altitude gamma-ray observatory providing wide-field coverage of a significant portion of the southern sky, SWGO is expected to complement existing and future instruments such as the High-Altitude Water Cherenkov (HAWC) observatory, the Large High Altitude Air Shower Observatory (LHAASO), and the Cherenkov Telescope Array (CTA).
High altitude sites are also above most of atmosphere's water vapor, making them ideal for infrared astronomy and submillimeter astronomy as those wavelengths are strongly absorbed by water vapor. On the other hand, high altitude does not offer as significant an advantage for radio astronomy at longer wavelengths, so relatively few radio ...
Milagro (the Spanish word for miracle) was a ground-based water Cherenkov radiation telescope situated in the Jemez Mountains near Los Alamos, New Mexico at the Fenton Hill Observatory site. It was primarily designed to detect gamma rays but also detected large numbers of cosmic rays. It operated in the TeV region of the spectrum at an altitude ...
The observatory is at an altitude of 4,410 metres (14,470 ft) above sea level. [2] Observations started in April 2019. [3] The observatory covers an area of some 145 hectares (360 acres). It has three underground observing pools, each “more than triple the size of the Water Cube (National Aquatic Center) in Beijing”. One of the pools is ...
Evapotranspiration, caused by strong winds and intense sunlight at high altitude, balances the remaining 90% of the water loss. It is nearly a closed lake. [5] [10] [15] The city of Puno in Peru, the largest urban settlement on the lake. Since 2000, Lake Titicaca has experienced constantly receding water levels.
It is approximately 18 km × 8 km (11.2 mi × 5.0 mi) with around 20 km 3 (4.8 cu mi) of water. Atitlán is an endorheic lake, fed by two nearby rivers and not draining into the ocean. It is shaped by deep surrounding escarpments and three volcanoes on its southern flank.
At higher altitude water evaporates and boils at lower temperature. Although () is constant, varied air composition results in varied (). Thus on average, at a given location or altitude, the psychrometric constant is approximately constant.