You can find a demonstration video on how to use the application
Please contact us at
firstname.lastname@example.org if you have any question, suggestion or issue with the application.
Landsat 5 availability with MODIS emissivity (August 2002 - December 2011), with NDVI (
January 1984 - December 2011 ).
Landsat 7 availability with MODIS emissivity (August 2002 - present), with NDVI ( January
1999 - present).
Landsat 8 availability with all emissivities (March 2013 - present).
In order to estimate the LST with the application you need to to the following:
1) Draw a polygon on the map by clicking (not dragging) on the map in order to select vertices
of the polygon.
2) Select your preffered Landsat source. Please check the availabillity for each Landsat
3) Select your preffered emissivity source. Please check the important notes above about
emissivity. For more details on this subject please refer to the paper.
4) Click the "Calculate LST" button. The results will be presented below the map.
Please use small polygons as GEE has a limit for the size of data that can be downloaded. We reccomend to search for areas below 10,000 km^2. In any case a message will appear
to inform you if you selected a big polygon.
It is recommended to use MODIS and NDVI-based emmisivity for Urban/Peri-Urban areas and
ASTER emissivity for Natural/Isolated areas. Refer to the paper for more details.
For each LST result you will find a "show" button that displays the LST as a layer on the
For each LST result you will also find a "download" button that downloads the LST as a .tiff
image. In order to download all the images click the "download all" button at the end of
All images are masked against water, snow, clouds and cloud shadows with fmask. Regions
that are not showing LST means that are masked.
Added "Contact us" button. You can now contact us by filling the form.
Please let us know through this feature if you encountered any issues with the application or if you hace any questions requests and suggestions to improve it.
USGS Landsat pre-collection updated with the new tier 1 collection. Landsat 7 and 8 are
available up to the present date.
The paper describing the application is now published and available online
New User Manual and updates button was added containing more information about the application.
The updated logs documenting any changes to the application will be added there.
The default layer prefference for the map changed from "Map" to "Satellite". This option
provides better contrast with the LST results palette.