noctilucent cloud वाक्य
उदाहरण वाक्य
मोबाइल
- It is the first satellite dedicated to studying noctilucent clouds, and made its first observations on May 25, 2007.
- Like an omen from the Book of Revelation, a wispy, silvery-blue noctilucent cloud hovered over Colorado late last month.
- The southerly drift of noctilucent clouds may be the miner's canary of global warming, a signal of bad times ahead.
- Somewhat frequent events are noctilucent clouds near the pinnacle of summer, which can only be seen outside of the city.
- In the decades after Otto Jesse's death in 1901, there were few new insights into the nature of noctilucent clouds.
- :: There has been much speculation that polar mesospheric clouds, sometimes known as noctilucent clouds, are seeded by carbon dioxide crystals.
- In that respect, they look similar to the mesospheric clouds, also known as noctilucent clouds on Earth, which occur about above our planet.
- The Earth presently moves through this plane around January 9 and July 9, when there is an increase in radar-detected meteors and meteor-related noctilucent clouds.
- Just below the mesopause, the air is so cold that even the very scarce water vapor at this altitude can be sublimated into polar-mesospheric noctilucent clouds.
- Because of the need for maximum cooling of the water vapor to produce noctilucent clouds, their distribution tends to be restricted to polar regions of Earth.
- Climate models predict that increased greenhouse gas emissions cause a cooling of the mesosphere, which would lead to more frequent and widespread occurrences of noctilucent clouds.
- NASA reported that the light came from an artificial noctilucent cloud formed by the exhaust particles of the rocket's fourth stage at an altitude of about.
- Chapman's role in the IGY and his support for amateur's work in auroras and noctilucent clouds, especially also with the Germans, has been discussed by Wilfried Schr�der.
- The possibility that small particles left behind on the orbital path almost one hundred days after the nucleus has passed could form noctilucent clouds is also slim.
- Also, some noctilucent clouds are made of smaller crystals, 30 nm or less, which are invisible to observers on the ground because they do not scatter enough light.
- The first physical confirmation that water ice is indeed the primary component of noctilucent clouds came from the HALOE instrument on the Upper Atmosphere Research Satellite in 2001.
- Blamont is credited with the discovery of Turbopause in 1959, the Interstellar wind in 1970, the Hydrogen envelope of comets in 1971 and the polar Noctilucent clouds in 1973.
- Project PoSSUM, the first commercial suborbital research program, offers its own space training program supporting PoSSUM upper atmospheric and noctilucent cloud research campaigns that use manned commercial space vehicles.
- "The most severe effect of entry through a noctilucent cloud would probably be the erosion of the thermal protection system during the most critical heating region, " the report said.
- "' Noctilucent clouds "'are the highest clouds in Earth's atmosphere, being bright polar mesospheric clouds illuminated by the Arctic sun from below the horizon, between latitudes of 50?and 70?
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