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Topic: Satellite

NASA’s Gravity Recovery and Climate Experiment (GRACE) satellites data reveals River Areas Flood Potential

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Every year, river flooding takes a heavy toll of lives and property damage in the United States. A new study has found that the potential of a river basin to flood can be assessed months in advance of flood season by using data from NASA’s Gravity Recovery and Climate Experiment (GRACE) twin satellites. The new finding could eventually lead to longer lead times for flood warnings.

“Case studies of the catastrophic Missouri River floods of 2011 show that flood-potential early warning times could be increased by a couple of seasons using these satellite data,” said co-author Jay Famiglietti.

The flooded confluence of the Nishnabotna and Missouri Rivers in Iowa, June 2011. A study of the 2011 Missouri River Basin floods has shown that NASA satellite data can help predict the potential of a river basin to flood as much as 11 months in advance of flood season. (U.S. Army Corps of Engineers)

The flooded confluence of the Nishnabotna and Missouri Rivers in Iowa, June 2011. A study of the 2011 Missouri River Basin floods has shown that NASA satellite data can help predict the potential of a river basin to flood as much as 11 months in advance of flood season. (U.S. Army Corps of Engineers)

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NASA set to launch Orbiting Carbon Observatory-2 this morning July 1st, 2014

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Orbiting Carbon Observatory-2 (OCO-2) mission is scheduled to launch from Vandenberg Air Force Base in central California tomorrow, July 1st, at 2:56am PDT (6:56am CDT).

OCO-2 — the first dedicated NASA mission to monitor atmospheric carbon dioxide on global scales — has only a 30-second launch window each day. The launch window is short because the spacecraft needs to be precisely aligned within a series of Earth-observing satellites known as the “A-Train.”

NASA's Orbiting Carbon Observatory-2 gets ready for launch at Vandenberg Air Force Base in central California. The spacecraft is perched atop a United Launch Alliance Delta II rocket, which will boost it to an orbit around Earth. (NASA/Bill Ingalls)

NASA’s Orbiting Carbon Observatory-2 gets ready for launch at Vandenberg Air Force Base in central California. The spacecraft is perched atop a United Launch Alliance Delta II rocket, which will boost it to an orbit around Earth. (NASA/Bill Ingalls)

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NASA reports on Intense Solar Storm that barely missed Earth

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Last month (April 8th-11th), scientists, government officials, emergency planners and others converged on Boulder, Colorado, for NOAA’s Space Weather Workshop—an annual gathering to discuss the perils and probabilities of solar storms.

The current solar cycle is weaker than usual, so you might expect a correspondingly low-key meeting. On the contrary, the halls and meeting rooms were abuzz with excitement about an intense solar storm that narrowly missed Earth.

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NASA study reveals Warm Ocean Water melting Antarctic Ice Shelf from below

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – Ocean waters melting the undersides of Antarctic ice shelves are responsible for most of the continent’s ice shelf mass loss, a new study by NASA and university researchers has found.

Scientists have studied the rates of basal melt, or the melting of the ice shelves from underneath, of individual ice shelves, the floating extensions of glaciers that empty into the sea. But this is the first comprehensive survey of all Antarctic ice shelves. The study found basal melt accounted for 55 percent of all Antarctic ice shelf mass loss from 2003 to 2008, an amount much higher than previously thought.

This photo shows the ice front of Venable Ice Shelf, West Antarctica, in October 2008. It is an example of a small-size ice shelf that is a large melt water producer. The image was taken onboard the Chilean Navy P3 aircraft during the NASA/Centro de Estudios Cientificos, Chile campaign of Fall 2008 in Antarctica. (Image credit: NASA/JPL-Caltech/UC Irvine)

This photo shows the ice front of Venable Ice Shelf, West Antarctica, in October 2008. It is an example of a small-size ice shelf that is a large melt water producer. The image was taken onboard the Chilean Navy P3 aircraft during the NASA/Centro de Estudios Cientificos, Chile campaign of Fall 2008 in Antarctica. (Image credit: NASA/JPL-Caltech/UC Irvine)

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NASA reports on the effects of Strong Solar Flares

 

Written by Karen C. Fox
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Given a legitimate need to protect Earth from the most intense forms of space weather — great bursts of electromagnetic energy and particles that can sometimes stream from the sun — some people worry that a gigantic “killer solar flare” could hurl enough energy to destroy Earth, but this is not actually possible.

Solar activity is indeed currently ramping up toward what is known as solar maximum, something that occurs approximately every 11 years. However, this same solar cycle has occurred over millennia so anyone over the age of 11 has already lived through such a solar maximum with no harm.

The Solar and Heliospheric Observatory spacecraft captured this image of a solar flare as it erupted from the sun early on Nov 4, 2003. This was the most powerful flare measured with modern methods, classified as an X28. (Credit: ESA and NASA/SOHO)

The Solar and Heliospheric Observatory spacecraft captured this image of a solar flare as it erupted from the sun early on Nov 4, 2003. This was the most powerful flare measured with modern methods, classified as an X28.
(Credit: ESA and NASA/SOHO)

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NASA works with Amateur Radio Operators to construct image of Earth using PhoneSat

 

Written by Ruth Dasso Marlaire
NASA Ames Research Center

NASA - National Aeronautics and Space AdministrationMoffett Field, CA – For about one week, engineers at NASA’s Ames Research Center, Moffett Field, CA, and amateur radio operators around the world collaborated to reconstruct an image of Earth sent to them from three smartphones in orbit.

The joint effort was part of NASA’s nanosatellite mission, called PhoneSat, which launched on Sunday, April 21st, 2013 aboard the Antares rocket from NASA’s Wallops Island Flight Facility in Virginia.

Although the ultimate goal of the PhoneSat mission was to determine whether a consumer-grade smartphone can be used as the main flight avionics for a satellite in space, the three miniature satellites (named Alexander, Graham and Bell) also took pictures of Earth and transmitted these “image-data packets” to multiple ground stations on Earth. Above photo was taken by the PhoneSat-1 (Bell) nanosatellite and reconstructed by the Ames Phonesat Team and multiple amateur radio operators around the world. (Image credit: NASA Ames)

Although the ultimate goal of the PhoneSat mission was to determine whether a consumer-grade smartphone can be used as the main flight avionics for a satellite in space, the three miniature satellites (named Alexander, Graham and Bell) also took pictures of Earth and transmitted these “image-data packets” to multiple ground stations on Earth. Above photo was taken by the PhoneSat-1 (Bell) nanosatellite and reconstructed by the Ames Phonesat Team and multiple amateur radio operators around the world. (Image credit: NASA Ames)

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Fort Campbell Eagle Challenge Fitness Tour Hosts City Slicker Urban Orienteering

 

Morale, Welfare and RecreationFort Campbell, KY – The next event in the Eagle Challenge Fitness Tour (ECFT) is the City Slicker Urban Orienteering event on April 27th.  Urban Orienteering will challenge you mentally as well as physically.

You will be provided with a basic satellite image map that you must use to navigate throughout the urban (on-post) environment.  Your mission will be to locate as many navigation points as you can within the two hour time limit and return to the starting position. «Read the rest of this article»

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NASA to use RQ-14 Dragon Eye unmanned aircraft to study Costa Rica’s active Turrialba Volcano Plume

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Studying volcanos can be hazardous work, both for researchers and aircraft. To penetrate such dangerous airspace, unmanned aerial vehicles (UAVs), especially those with electric engines that ingest little contaminated air, are an emerging and effective way to gather crucial data about volcanic ash and gases.

Last month, a team of NASA researchers deployed three repurposed military UAVs with special instruments into and above the noxious sulfur dioxide plume of Costa Rica’s active Turrialba volcano, near San Jose.

NASA researchers modified three repurposed Aerovironment RQ-14 Dragon Eye unmanned aerial vehicles acquired from the United States Marine Corps to study the sulfur dioxide plume of Costa Rica's Turrialba volcano. The project is designed to improve the remote sensing capability of satellites and computer models of volcanic activity. (Image credit: Google/NASA/Matthew Fladeland)

NASA researchers modified three repurposed Aerovironment RQ-14 Dragon Eye unmanned aerial vehicles acquired from the United States Marine Corps to study the sulfur dioxide plume of Costa Rica’s Turrialba volcano. The project is designed to improve the remote sensing capability of satellites and computer models of volcanic activity. (Image credit: Google/NASA/Matthew Fladeland)

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NASA’s Cassini spacecraft captures pictures of Saturn’s battered moon Rhea

 

Written by Jia-Rui C. Cook
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Following its last close flyby of Saturn’s moon Rhea, NASA’s Cassini spacecraft captured these raw, unprocessed images of the battered icy moon. They show an ancient, cratered surface bearing the scars of collisions with many space rocks.

Scientists are still trying to understand some of the curious features they see in these Rhea images, including a curving, narrow fracture or a graben, which is a block of ground lower than its surroundings and bordered by cliffs on either side.

This image was taken on March 10, 2013, and received on Earth March 10, 2013 by NASA's Cassini spacecraft. The camera was pointing toward Rhea at approximately 174,181 miles (280,317 kilometers) away, and the image was taken using the CL1 and CL2 filters. (Image Credit: NASA/JPL/Space Science Institute)

This image was taken on March 10, 2013, and received on Earth March 10, 2013 by NASA’s Cassini spacecraft. The camera was pointing toward Rhea at approximately 174,181 miles (280,317 kilometers) away, and the image was taken using the CL1 and CL2 filters. (Image Credit: NASA/JPL/Space Science Institute)

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United Nations forum places Space Weather on the Agenda

 

Written by Dr. Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Rewind to the late 1950s. The Soviet Union had just launched the first artificial satellite, Sputnik. The United States, caught short, was scrambling to catch up, kick-starting a Cold War space race that would last for decades.  Space was up for grabs, and it seemed like anything could happen.

Into this void stepped the United Nations. In 1958, the General Assembly “recognizing the common interest of mankind in furthering the peaceful use of outer space … and desiring to avoid the extension of present national rivalries into this new field….” established the Committee on the Peaceful Uses of Outer Space (COPUOS).

The UN Committee on the Peaceful Uses of Outer Space (UNCOPUOS). (Credit: UN Information Service)

The UN Committee on the Peaceful Uses of Outer Space (UNCOPUOS). (Credit: UN Information Service)

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