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THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS Mission and Substorm
…
| Title |
THEMIS Mission and Substorm Simulation |
| Abstract |
This visualization combines simulations of the THEMIS (Time History of Events and Macroscale Interactions during Substorms) mission orbits with a GGCM (Geospace General Circulation Model) simulation. It illustrates how the five THEMIS satellites will work together to detect substorm events in the magnetosphere. One goal of the THEMIS mission is to test how these substorm events are related to the formation of the aurora. This mission consists of five identical spacecraft (usually designated P1, P2, P3, P4 and P5) with orbits aligned so they reach their apogee along the same line from the Earth. This alignment remains fixed in space so as the Earth moves around the Sun, the constellation of spacecraft will extend on the nightside of the Earth in winter to sample the Earth's magnetosphere, and on the dayside of the Earth in summer to sample the incoming solar wind. This way they can better map the geospace environment. Probes P1 and P2 are called the 'outer probes' and P3, 4, and 5 are the 'inner probes'. P3 and P4 share the same orbit. The outer probes will detect the onset of the substorm, while the inner probes will monitor the Earthward plasma flows from the event. For more information on the GGCM model, visit the Community Coordinated Modeling Center and OpenGGCM. |
| Completed |
2006-05-18 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
THEMIS and the March 2007 Su
…
| Title |
THEMIS and the March 2007 Substorm |
| Abstract |
NASA's Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission observed the dynamics of a rapidly developing substorm in March of 2007. This visualization combines the orbits of the THEMIS satellites with a magnetohydrodynamical simulation of the Earth's magnetosphere corresponding to this time. |
| Completed |
2007-11-21 |
|
Digital Data Matrix Scanner
…
| Name of Image |
Digital Data Matrix Scanner Developnent At Marshall Space Flight Center |
| Date of Image |
2004-01-08 |
| Full Description |
Research at NASA's Marshall Space Flight Center has resulted in a system for reading hidden identification codes using a hand-held magnetic scanner. It's an invention that could help businesses improve inventory management, enhance safety, improve security, and aid in recall efforts if defects are discovered. Two-dimensional Data Matrix symbols consisting of letters and numbers permanently etched on items for identification and resembling a small checkerboard pattern are more efficient and reliable than traditional bar codes, and can store up to 100 times more information. A team led by Fred Schramm of the Marshall Center's Technology Transfer Department, in partnership with PRI,Torrance, California, has developed a hand-held device that can read this special type of coded symbols, even if covered by up to six layers of paint. Before this new technology was available, matrix symbols were read with optical scanners, and only if the codes were visible. This latest improvement in digital Data Matrix technologies offers greater flexibility for businesses and industries already using the marking system. Paint, inks, and pastes containing magnetic properties are applied in matrix symbol patterns to objects with two-dimensional codes, and the codes are read by a magnetic scanner, even after being covered with paint or other coatings. The ability to read hidden matrix symbols promises a wide range of benefits in a number of fields, including airlines, electronics, healthcare, and the automotive industry. Many industries would like to hide information on a part, so it can be read only by the party who put it there. For instance, the automotive industry uses direct parts marking for inventory control, but for aesthetic purposes the marks often need to be invisible. Symbols have been applied to a variety of materials, including metal, plastic, glass, paper, fabric and foam, on everything from electronic parts to pharmaceuticals to livestock. The portability of the hand-held scanner makes work faster and easier. It reads marks in darkness, under bright light that might interfere with optical reading of visible marks, and can detect symbols obscured by discoloration or contamination. Through a license with NASA, another partner, Robotic Vision Systems, Inc., of Nashua, New Hampshire, will sell the scanner on the commercial market. NASA continues to seek additional companies to license the product. Joint efforts by Marshall researchers and industry partners are aimed at improving dentification technology as part of NASA's program to better life on Earth through technology designed for the space program. In this photo, Don Roxby, Robotic Vision Systems, Inc., (left)demonstrates the magnetic handheld scanner for Fred Schramm, (Right) MSFC Technology Transfer Department. |
|
Antarctic Megadunes: Image o
…
nasa, nasaimageofthedaygalle
…
In Antarctica, relentless wi
…
megadunes_modis
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2002 |
| creator |
NASA -- Satellite images courtesy of Mark Fahnestock, University of Maryland, College Park, Antarctica map courtesy of the CIA World Fact Book, megadune and sastrugi photos courtesy of Ted Scambos, University of Colorado, Boulder |
| identifier |
megadunes_modis |
|
Smoke Signals from the Alask
…
nasa, nasaimageofthedaygalle
…
Large, lightning-induced fir
…
PIA04363
| mediatype |
IMAGE |
| mediatype |
image |
| date |
2004-06-30 |
| creator |
NASA -- Image courtesy NASA/GSFC/LaRC/JPL, www-misr.jpl.nasa.gov/ MISR Team and Dominic Mazzoni (JPL). Text by Clare Averill (Raytheon/JPL). |
| identifier |
PIA04363 |
|
Summer Turns to Autumn in Ne
…
PIA02631
Sol (our sun)
Multi-angle Imaging SpectroR
…
| Title |
Summer Turns to Autumn in New England |
| Original Caption Released with Image |
The green hues of summer give way to the reds and browns of autumn in this pair of MISR nadir-camera views acquired on August 26, 2000 (left) and October 20, 2000 (right). The images include eastern Vermont, New Hampshire, and western Maine, as well as the southeastern corner of Quebec province. New Hampshire's White Mountains run roughly north-south through the center of each image. Linear patterns associated with forest clear cuts are apparent in the upper left quadrant of the images. Some scattered cumulus clouds are present, and urban centers show up as patches of gray. The city of Portland, Maine, is at the lower right corner, to the southeast of Sebago Lake. Sherbooke, Quebec, is visible to the northeast of Lake Memphremagog, which straddles the US-Canadian border. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology. |
|
Smoke Signals from the Alask
…
PIA04363
Sol (our sun)
Multi-angle Imaging SpectroR
…
| Title |
Smoke Signals from the Alaska and Yukon Fires |
| Original Caption Released with Image |
. Some of the smoke from these fires was detected as far away as New Hampshire. These visualizations were captured on June 30th by the Multi-angle Imaging SpectroRadiometer (MISR) on NASA's Terra spacecraft. Here, MISR distinguishes clouds from smoke and retrieves heights and optical depths for the smoke -- information which will help to improve models of how smoke aerosols are transported. The images cover an area extending from the Mackenzie Bay in northwest Canada, through the Alaskan Interior and along the Alaska-Yukon border, south to the Wrangell Mountains. The first panel in the series is a natural-color image from MISR's 60° forward viewing camera. Smoke plumes notable along the right-hand edge are situated southwest of the Peel River in the Yukon Territory, and plumes extending west from the left-hand edge are situated in the vicinity of the Yukon River and the town of Eagle at the Alaska-Canada border. In the lower portion of the image, thick smoke obscures the Wrangell Mountain range. The next panel in the series is a stereoscopic height field, in which topography, smoke plumes and clouds are all being detected. Analysis indicates that most of the smoke and many low clouds are situated at heights between about 1 and 4 kilometers above the surface, while a few high clouds attained much greater altitudes. The third panel from the left is a smoke mask, in which the image is classified as either non-smoke, or as smoke with low confidence (lc) or high confidence (hc), represented by the blue, red and green pixels, respectively. Many of the actual smoke "plumes" were identified as high-confidence smoke, including parts of plumes in the Peel River region (upper right) and Yukon River/Alaska-Canada border region (left-hand edge). This smoke mask is produced by a computerized "machine-learning" classifier which detects smoke by examining the spectral, textural, and angular features in the radiances from three oblique-viewing MISR cameras. Ultimately, the classifier will be trained to identify plume-like shapes, thus making it possible to automatically isolate plume heights from the stereo product. The right-hand panel displays MISR's aerosol optical depth retrieval, in which the brightness and contrast changes of the surface at different view angles are used to measure the attenuation of sunlight as it passes through a column of the atmosphere. Increasing amounts of smoke aerosol appear as green, yellow, orange and red pixels, and clearer skies are indicated by blue pixels. Areas where the aerosol optical depth could not be retrieved, either because the smoke was too thick to see the surface contrast or because the presence of clouds precluded a retrieval, are shown in dark gray. The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously and every 9 days views the entire globe between 82 degrees north and 82 degrees south latitude. The non-animated data products were generated from a portion of the imagery acquired, Large lightning-induced fires were active in Alaska and the Yukon Territory from mid-June to mid-July, 2004. Thick smoke particles filled the air during these fires, prompting Alaskan officials to issue air quality warnings [ http://airnow.gov/ ], during Terra orbits 24123. The still panels cover an area of about 400 kilometers 898 kilometers, and use data from blocks 35 to 41 within World Reference System-2 path 64. MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, Calif., for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, Md. JPL is a division of the California Institute of Technology. |
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