Media Information

 
 
 
Collection:
NASA Scientific Visualization Studio Collection
Title:
Solar Irradiance (WMS)
Instrument:
SORCE/TIM
Description:
This is the legend for the solar irradiance animation, indicating the magnitude of the incident solar radiation flux.
Abstract:
The Earth's climate is determined by energy transfer from the sun to the Earth's land, oceans, and atmosphere. As the Earth moves around the sun, the fact that the Earth's axis is tilted means that the sun's overhead position moves from the Northern Hemisphere to the Southern Hemisphere and back from one summer to the next. This effect causes winters to be cold and summers warm in the Northern Hemisphere and the opposite in the Southern Hemisphere. This animation shows the incoming solar irradiance on the Earth at noon on the Greenwich meridian during an entire year, illustrating this movement. The magnitude of this irradiance comes from measurements by the TIM instrument on SORCE. Since the Earth's orbit is elliptical, the magnitude of the solar irradiance at the Earth is least when the Earth is farthest from the sun and greatest when the earth is closest. This 6 or 7 percent change can be seen in the animation by watching the dark bands move. When the bands expand from the bright spot, the Earth is getting closer to the sun, from July through December, and when they contract the Earth is moving away, from January through June. The sun's irradiance is also variable from day to day, but that effect is about ten times smaller than the effect of the earth's orbit.
Completed:
2005-02-28
Credit:
*Please give credit for this visualization to*
NASA/Goddard Space Flight Center
Scientific Visualization Studio
Studio:
SVS
Animator:
Horace Mitchell (Lead)
Scientist:
Gary Rottman (University of Colorado)
Scientist:
Tom Woods (University of Colorado)
Series:
WMS
Data Collected:
2003/06/20-2004/06/1 9
DEPC Metadata:
*DEPC Metadata* is available here.
Keywords:
GCMD
Keywords:
EARTH SCIENCE
Keywords:
Atmosphere
Keywords:
Sun-earth Interactions
Keywords:
Solar Activity
Keywords:
Atmospheric Radiation
Keywords:
Incoming Solar Radiation
Keywords:
Solar Irradiance
note:
More Information on this topic available at
http://lasp.colorad…
Web Map Service:
*This product is available through our Web Map Service. Click here to learn more. [ http://svs.gsfc.nas…]*
facet_where:
Colorado
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Sun
facet_what:
Meridian
facet_what:
WMS
facet_what:
SORCE
Animation Number:
3109
UID:
SPD-SCIVS-http://svs .gsfc.nasa.gov/vis/a 000000/a003100/a0031 09/sorcebar.0000-IMA GE
original url:

Solar Irradiance (WMS)