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EUV was a 1-dimension limb imager designed to observe height and density of the daytime ionosphere by detecting the glow of oxygen ions and other species at wavelengths between 55 and 85 nm. FUV was a 2-dimension imager that observes the limb and below at 135 and 155 nm, where bright emissions of atomic oxygen and molecular nitrogen are found.
A multiple-vortex tornado outside of Dallas, Texas on April 2, 1957. Since Dallas lies at the lower end of the "Tornado Alley", tornadoes have on occasion been a threat to the city. Most tornadoes hit the city during the months of April and May. [15] Dallas was hit by a powerful tornado on April 2, 1957; the tornado was later rated F3. [16]
Relationship of the atmosphere and ionosphere. The ionosphere (/ aɪ ˈ ɒ n ə ˌ s f ɪər /) [1] [2] is the ionized part of the upper atmosphere of Earth, from about 48 km (30 mi) to 965 km (600 mi) above sea level, [3] a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar ...
International Reference Ionosphere (IRI) is a common permanent scientific project of the Committee on Space Research (COSPAR) and the International Union of Radio Science (URSI) started 1968/69. It is the international standard empirical model for the terrestrial ionosphere since 1999.
Balloons cannot reach it because the air is too thin, but satellites cannot orbit there because the air is too thick. Hence, most experiments on the ionosphere give only small pieces of information. HAARP approaches the study of the ionosphere by following in the footsteps of an ionospheric heater called EISCAT near Tromsø, Norway. There ...
In 2022, locations in Dallas and several others in Houston closed down, according to Houston Historic Retail. Since 2020, Krispy Kreme locations in Richardson, Cedar Hill, Mesquite and Watauga ...
Pages in category "Ionosphere" The following 50 pages are in this category, out of 50 total. ... Ionized-air glow; Ionosonde; Ionosphere-Thermosphere Storm Probes;
But the need for air conditioning in the summer takes the cake. The Dallas-Fort Worth area will experience its hottest days of the year this week — and, most likely, for the remainder of July.