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By Lumistar's Chief Scientist

December 15, 2015

Christmas Shown From Space Using Infrared Process

Nasa Photo of Christmas Lights

New photos created from NASA’s Suomi NPP satellite, shows the extent of holiday light displays in the U.S. compared to the rest of the year. By comparing the light from the Christmas holiday with the rest of the year, the differential is extracted and shown on the map. Scientists found that nighttime lights around major U.S. cities shone 20 percent to 50 percent brighter around Christmas. Dark green in the key is used to indicate areas where lights have the largest gain mostly suburbs being 50 percent brighter in December. The images released were taken between 2012 and 2013 and include 70 American cities. The difference is most pronounced in suburbs and small towns where residents have bigger yards and bigger homes. Lights were brightest between Thanksgiving and New Year’s Day.

The Suomi NPP weather satellite, launched in 2011, has a sounder infrared spectrometer named Cross-track Infrared Sounder (CrIS), and a scanning radiometer named Visible Infrared Imaging Radiometer Suite (VIIRS). Since 1980, polar-orbiting weather satellites have included both imagers and sounders. These types of sensors record data continuously, using different wavelengths to infer information on a global scale.

The CrIS sounder infrared spectrometer is an instrument measuring temperature and water vapor as a function of different heights within the atmosphere. The scanner collects multiple spectral data via 1,305 separated spectral channels (sensors), internally separating infrared energy into wavelengths, similar to a weather balloon. CrIS produces high-resolution, three-dimensional temperature, pressure, and moisture profiles. These profiles are used to enhance weather forecasting models, and they will facilitate both short- and long-term weather forecasting.

The VIIRS uses radiometric and infrared imaging, thereby using a color pallet to ‘paint’ polarized heat images by assigning color to each heat temperature, which is the sole instrument used to create the above map. VIIRS collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth’s albedo. VIIRS can record infrared light even in the presence of clouds, moonlight and air particles.

Together VIIRS and CrIS combine infrared instruments and can determine cloud top height and thermodynamic phase (ice or water particles), and make estimates of microphysical and optical properties that indicate the amount of water and ice in the cloud layer. The Suomi NPP satellite is the result of a partnership between NASA, the National Oceanic and Atmospheric Administration, and the Department of Defense.

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  1. Hope certain gov agencies don’t use this data to justify getting rid of Christmas due to it’s carbon footprint. Oh snap, the satellite used for this study was taxpayer funded to study ‘climate change’. Not kidding.

    Comment by Reno R. — December 16, 2015 @ 09:53


  3. @Reno Well said.

    Comment by DIR — December 18, 2015 @ 12:34


  5. @Reno Maybe if so much money wasn’t wasted on this junk science, cameras @Lumistar which is legit science would be less money. just sayin

    Comment by hubwolf — December 21, 2015 @ 14:16


  7. Merry Christmas Lumistar! Another great article. Best Wishes.

    Comment by Laurie J. — December 24, 2015 @ 09:55


  9. Happy New Year!

    Comment by Willie T — January 2, 2016 @ 11:23


  11. @Reno LOL

    Comment by Thomas M — January 12, 2016 @ 18:41


  13. Wonder what differential algorithm was used in this study.

    Comment by Shabar S — January 26, 2016 @ 02:28


  15. How can anyone disagree with ‘consensus’? After all the ‘majority’ of scientists agree climate change is man made. Sometimes it’s 99%, sometimes it’s 95%, 97%, or just ‘almost all’. Depends on how thirsty the audience is…for kool-aid.

    Comment by LastNameFirstNameLast — February 3, 2016 @ 16:49


  17. Bunch of fake liberals on this site!

    Comment by HelloTR — February 12, 2016 @ 04:27


  19. Climate change is real yo! Just use your thermal camera and point it to the sky. OK!

    Comment by OR Man — February 13, 2016 @ 12:02


  21. Great article, keep writing on this infrared, I enjoy very much. Sub’d.

    Comment by Kehlani L — February 16, 2016 @ 01:00


  23. Me and this article, sitting in a tree, L—–R-N-I-N-G!

    Comment by Jimmy — March 22, 2016 @ 03:49


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