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sábado, 21 de junio de 2014

NASA : Storm Cell Over the Southern Appalachian Mountains.- Tormenta Sobre los Apalaches del Sur

Tormenta Sobre los Apalaches del SurEsta imagen de una célula tormentosa sobre las montañas sureñas de los Apalaches fue captada desde un avión de gran altitud ER-2 de la NASA el pasado 23 de Mayo de 2014, durante un estudio encaminado a lograr una mejor comprensión de las precipitaciones sobre terreno montañoso.

Ver Imagen Tormenta Sobre los Apalaches del Sur Credits: NASA/Stu Broce

Storm Cell Over the Southern Appalachian Mountains
This storm cell photo was taken from NASA's high-altitude ER-2 aircraft on May 23, 2014, during a study aimed at gaining a better understanding of precipitation over mountainous terrain. The Integrated Precipitation and Hydrology Experiment, or IPHEx, field campaign is part of the ground validation effort for the Global Precipitation Measurement (GPM) mission, an international satellite mission led by NASA and the Japan Aerospace Exploration Agency. GPM's Core Observatory launched Feb. 27, 2014, to provide next-generation observations of rain and snow worldwide every three hours. But to get accurate measurements from space, scientists have to understand what is happening on the ground.
For the six-week IPHEx field campaign over the southern Appalachian mountains, the NASA team and their partners at Duke University and NOAA's Hydrometeorological Test Bed set up ground stations with rain gauges and ground radar throughout western North Carolina. In addition to the ground sites, they also collected data sets from satellites and two aircraft.
The NASA ER-2 aircraft that deployed to Robins Air Force Base in Warner Robins, Georgia, was able to fly when rain was in the air. The ER-2's cruising altitude of 65,000 feet kept it well above the storm systems it was observing, allowing it to act as a proxy-satellite. The aircraft carried a suite of instruments, including three that took measurements similar to those taken by GPM's Core Observatory.
Image Credit: NASA / Stu Broce
Guillermo Gonzalo Sánchez Achutegui
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