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Can anyone point me toward an article that converts the LST values on the MODIS LST Image to degrees Celsius?

My purpose is find a reference (article, book or theses) for this formula that converts DN to degree celsius (C=DN*.02-273.15)

closed as unclear what you're asking by Dan C, nmtoken, KHibma, Vince, PolyGeo Nov 29 '18 at 20:04

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    Welcome to GIS StackExchange! As a new user, please take the tour to learn about our focused Q&A format. You have multiple tags on your question - are you using a particular software product? Your question is also unclear -- do you need assistance finding some MODIS documentation? – smiller Nov 29 '18 at 16:52
  • thank you so much but this not my aim, my purpose is find refrence (article, book or theses)for this fermola that convert DN to degree celsius(C=DN*.02-273.15) – papoola Nov 29 '18 at 19:31
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Your question is a little unclear, but I found this documentation

https://www.usgs.gov/media/videos/getting-started-modis-v6-land-surface-temperature-data-part-2

The Land Surface Temperature data is in degrees Kelvin. You can convert between Kelvin and Celsius through the formula below.

K − 273.15 = degC

EDIT: after review of other questions on the site (once the OP clarified that they are looking for a reference for multiplying LST by 0.2), I found this answer which referred to the MODIS LST User Guide:

How do I convert the LST values on the MODIS LST Image to degree celsius. The documentation referenced is the actual user guide for Modis LST. https://icess.eri.ucsb.edu/modis/LstUsrGuide/usrguide_mod11.html#sds

Per the linked post, Temperature in °C will be: DN * 0.02 - 273.15

Verify which sensor your data is using just in case they have different calibration values and then look for the appropriate user guide.

Per the Modis 11 Level 2 Product user Guide:

The effective calibration formula for the "LST" SDS is LST = the SDS data in uint16 * 0.02, giving a value in the range of 150-1310.7K.

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