Earth ID: 3124

Monthly Average Erythemal Index (UV exposure) for 2000-2001 (WMS)

Visualizations by Jeff de La Beaujardiere Released on March 7, 2005

The Erythemal Index is a measure of ultraviolet (UV) radiation at ground level on the Earth. (The word 'erythema' means an abnormal redness of the skin, such as is caused by spending too much time in the sun—a sunburn is damage to your skin cells caused by UV radiation.) Atmospheric ozone shields life at the surface from most of the harmful components of solar radiation. Chemical processes in the atmosphere can affect the level of protection provided by the ozone in the upper atmosphere. This thinning of the atmospheric ozone in the stratosphere leads to elevated levels of UV at ground level and increases the risks of DNA damage in living organisms.

This animation shows monthly average erythemal index for 2000-01 through 2001-12. The image size is 288x180 pixels (288x176 pixels for the MPEG movie); each pixel corresponds to an area 1 degree in longitude by 1.25 degrees in latitude.

This product is available through our Web Map Service.

Color scale for this animation showing low exposure values as shades of blue and green and higher values as yellow orange, or red. The units as joules per square meter.

Visualization Credits

Jeff de La Beaujardiere (NASA): Lead Animator
Richard McPeters (NASA/GSFC): Scientist

Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio

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https://svs.gsfc.nasa.gov/3124

Data Used:

Earth Probe/TOMS/Erythemal

2000-01-01 through 2001-12-31

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Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

This item is part of these series:
Erythemal UV
WMS

Keywords:
DLESE >> Atmospheric science
GCMD >> Earth Science >> Atmosphere >> Atmospheric Radiation >> Ultraviolet Radiation
NASA Science >> Earth

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0