Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-23T06:27:52Z http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 32 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.sme 2012-07-10T04:00:00Z

Solar Magnetic Eruptions (SME), such as Coronal Mass Ejections and Solar Flares, and their impact on Earth's space environment are the target of this Space Weather research.Solar Magnetic Eruptions ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ccif 2008-07-17T04:00:00Z

The Sun rings like a bell. By looking at the frequencies of this ringing we can tell what the bell is made of. In the case of the Sun we can tell the sound speed (temperature) ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.sw -180.0,-90.0,180.0,90.0 0000-07-01T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

This research looks at transport of chemical constituents in the lower stratosphere.Almost all air enters the stratosphere over the tropics. A slow, mean vertical circulation, called the Brewer-Dobson ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.pv -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

In early winter, cold temperatures result in the formation of a strong circumpolar flow in the stratosphere, known as the polar night vortex, producing favorable conditions for ozone depletion. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ccw2_cpw -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

Large scale stable precipitation (PRECL), cloud fraction, and meridional wind components are visualized using a high-resolution (T170) simulation of the CCM2 model.These images and animations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ccm2_tpw -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

Visualizations of high resolution precipitable water data show the complex global circulation patterns in our atmosphere.These images and animations were obtained by visualizing total ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ccm3 -180.0,-90.0,180.0,90.0 0000-01-01T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

The NCAR Community Climate Model (CCM3) is a state of the art atmospheric general circulation model designed for climate research on high-speed supercomputers and select upper-end workstations. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.csm -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

Surface temperature and its predicted change due to increased levels of greenhouse gases are simulated over a period of several decades using the NCAR Climate System Model. The Climate ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.eln -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

El Nino events that occurred in 1982 and 1997 are shown by viewing global sea surface temperatures, global sea surface temperature anomalies, and tropical cloud cover. The images and animations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.mm5 70.0,15.0,150.0,56.0 1993-06-01T00:00:00Z 1993-06-02T00:00:00Z 2008-07-16T04:00:00Z

The ability to predict the behavior of large storm systems is an important and necessary tool for helping save lives and property that can be lost during severe weather events. The MM5 numerical model ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.firehill 2008-07-16T04:00:00Z

This simulation prescribed similiar fuels to the flat land simulation, but with the addition of a 200 meter hill with upslope winds that drive the spread of the fire.Building ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.fire 2008-07-16T04:00:00Z

The early results shown here help to understand the circulation dynamics of a fire storm on a flat land surface.In the past, studies and numerical simulation of forest fires have treated ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.gate 2008-07-16T04:00:00Z

A Cloud Resolving Model was run using data from a unique 3D Atlantic tropical experiment, and visualizations were produced showing the formation and evolution of cloud systems ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ngcm -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

Climate models are often used to simulate future climates assuming specific changes in our environment. Predicted global temperature changes are shown by computing the effects of expected ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.hpcc 2008-07-16T04:00:00Z

Certain types of turbulence that occur in the oceans, atmosphere, or even on other planets are modeled using Quasi-Geostrophic equations. Visualizations of high resolution simulations ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.pv2 -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

This new simulation of the stratospheric polar night vortex breakdown was computed at a significantly higher resolution than the previous one (two to four times the horizontal and vertical ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.thorn -177.1,13.71,-61.48,76.63 1997-01-01T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

Daily total precipitation and daily maximum temperature are animated over a one-year subset (1997) of the 18-year Daymet U.S. Database of high-resolution gridded daily surface weather ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.mozart1 2008-07-16T04:00:00Z

Lightning emissions produce NOx which is used in the production of Ozone. The MOZART global atmospheric chemistry climate model, developed at NCAR, is used here to investigate this relationship.These ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.diana 2008-07-16T04:00:00Z

This simulation marks the first time a cloud-resolving simulation has been able to reproduce the formation of a tropical cyclone, given only information about atmospheric conditions on ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.hist -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

See samples from the first 30 years of numerical computation and visualization in atmospheric science.Lewis Fry Richardson published Weather Prediction by Numerical Process in 1922. He ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.ptcc 2008-07-16T04:00:00Z

The outer third of the Sun's radius is convectively unstable. Turbulent motions from this region known as Penetrative Turbulent Compressible Convection (PTCC) may penetrate into stable ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.pumping 2008-07-16T04:00:00Z

This research explores the transport of magnetic fields on the Solar surface by Penetrative Turbulent Compressible Convection (PTCC).This research attempts to better understand the process ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.seaice -180.0,-90.0,180.0,90.0 2008-07-16T04:00:00Z

After 140 years of a 1% annual increase in CO2, this simulation shows a dramatic reduction in sea ice thickness at the North Pole. Results for the South Pole are also shown.This simulation ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.coral -177.1,13.71,-61.48,76.63 2008-07-16T04:00:00Z

Coral reefs are one of nature's most beautiful and rich ecosystems, and rival rainforests in biodiversity. This simulation shows the long-term evolution of a coral reef, starting 21,000 ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.mft 2008-07-16T04:00:00Z

Solar Magnetic Flux Tubes are magnetic field concentrations near the surface of the sun. Because of their close relation to their much larger cousins, sun spots, they are of great interest ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.mcv 2008-07-16T04:00:00Z

The evolution of a squall line with a mesoscale convective vortex is modeled here using the Klemp-Wilhelmson numerical algorithm. The circulation patterns around the storm along with the ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.rs -180.0,-90.0,180.0,90.0 0000-01-01T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

The NCAR Community Climate Model (CCM3) is used to model sulfate aerosols in the atmosphere that originate from coal burning and smelting operations around the globe.Researchers at NCAR ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.sc 1995-06-02T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

These animations model a 1.5 hour supercell evolution and visualize fractal-like lightning branch structures from the storm.In early June, 1995, a severe storm swept across the West Texas ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.lan 112.0,20.0,116.0,24.0 2008-07-16T04:00:00Z

The Clark-Hall model was used to visualize tropical storm Russ which swept over Lantau Island, site of the Hong Kong Airport.Lantau Island is the site of the Hong Kong Airport, Chek Lap ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.herb 1996-07-31T00:00:00Z T00:00:00Z 2008-07-16T04:00:00Z

Typhoon Herb roared across northern Taiwan resulting in the loss of many lives and damage to property due to high winds, flooding, and landslides. Researchers are using advanced computer ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.fires 2008-07-16T04:00:00Z

Explore the basis of the universal fire shape as well as twirl and burst behavior. In this wildfire simulation, as the fire spreads, it evolves into a shape well-known to fire managers. ...

http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ucar.scd.vets.vg.cat 105.0,40.0,105.0,40.0 1992-12-01T00:00:00Z 1992-12-31T00:00:00Z 2008-07-16T04:00:00Z

NCAR and NOAA researchers worked togheter to study an incident where a cargo plane's engine was ripped off by clear air turbulence.In December of 1992, a DC-8 cargo plane westbound ...