TRANSFORM MODIS EMISSIVITY IN KELVIN - NV5 Geospatial

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Last Post 24 Aug 2012 07:16 AM by anon

TRANSFORM MODIS EMISSIVITY IN KELVIN

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anon

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Posts:1

24 Aug 2012 07:16 AM
Hello, How i can transform emissivity values fom MOD11A2 (band 31 and 32) in Kelvin? i already try the operation (b1*0.02) which is recommended in many papers to get the data value in Kelvin, but my values are two low to bel K, so can someone tell me the right procedure to get the temperature in K units? Best regards Maria

MariM

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Posts:2396
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27 Aug 2012 08:04 AM
I don't believe that you can convert emissivity to temperature in that way. I believe what you have is a MODIS product that has both emissivity and temperature images. According to the MODIS data product website, you can convert the MODIS integer values to floating point emissivity values by multiplying the data by 0.002. You can convert the temperature images as well by their published scale factor: http://lpdaac.usgs.gov/pr...oducts_table/myd11a1

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