Land Surface Temperature (LST) Data Extraction From Sentinel-3 SLSTR Level 2 Data using ESA SNAP

How to extract Land Surface Temperature ( LST ) data from Sentinel-3 SLSRT Level 2 data using ESA SNAP and ArcGIS. If you dont have ArcGIS Software, you can use Free and Open Source QGIS Software available from www.qgis.org.
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[@GEO2004]

If you are looking for Sea Surface Temperature extraction, I have created a tutorial using Sentinel 3 SLSTR here : kzbin.info/www/bejne/oXXFhqhpn7V6qNU

[@frezzix]

first of all thank you for the video. I'm working on a project for university course. I am a beginner in this type of softwares. The satellite image I obtained covers a very large area, but the data I need must belong to a very small city. Is there some kind of clipping method can i use for this?

[@GEO2004]

If you are looking for clipping method, you can use subset tool from raster menu.

[@rodrigopassos4783]

This tutorial is so useful, thanks a lot !!!

[@GEO2004]

Glad it was helpful!

[@MrEduardogj]

Thanks for the useful tutorial! Is it possible to extract LST data from Sentinel-3 and use it directly in ArcGIS without using ESA SNAP? If so, what funtion or tool would be best to project the data?

[@GEO2004]

There are raster function in arcgis pro 2.6 to do that, but I am not yet testing the feature at this moment

[@federicoascolani6457]

Thanks for the tutorial. So, the final spacial resolution for the LST image is 1km pixel, am I right? Thank you in advance.

[@GEO2004]

Yes you are right

[@mrfaizi2450]

How did you check the final Spatial Resolution.. after extraction ..what is spatial resolution before extraction in SNAP?

[@federicoascolani6457]

@@mrfaizi2450 I don't remember well, possibly by zooming to the size of the pixel and meassuring it.

[@nomadhomad3685]

Cant you just project the ESA data within the GIS software itself (via Project Raster on Arc Pro for example?)? Thanks

[@GEO2004]

Yes, you must export the data to geotiff format tho

[@nomadhomad3685]

@@GEO2004 and that's because ESA exports the product as a .jpg and not a .tif like the USGS does, right?

[@GEO2004]

@@nomadhomad3685 yes

[@fabriciodiazajata8861]

Gracias amigo tu video me ayudo bastante!!!

[@GEO2004]

de nada!!

[@pragyapandey2043]

How to check if the data is projected correctly in the world map or not

[@GEO2004]

Add other data in same area that have correct world map information, if those data overlaid correctly, then they must be correcy

[@alexandrealekseev2207]

Hello, thank you for the great tutorial. I'm a beginner in this field, but I was wondering if it was possible to monitor LST on a real-time basis using this process ? Thank you very much and have a great day!

[@GEO2004]

no, it can't, satellite imagery have delay on its publishing because the data needs to be processed first in the ground station. unless you want to monitor at coarser resolution using LST from weather/meteorological satellite, now that is possible

[@alexandrealekseev2207]

@@GEO2004 hello and thank you for your answer. Actually I'm searching for a way to monitor temperature on a real time basis on a broad range. Could we talk about it via email or something ? That would be great, thank you

[@GEO2004]

You can mail me at [e-mail] but if those are what you want, I suggest you to learn about google earth engine or microsoft planetary, those services will helps you to achieve your dream

[@LoriRSS]

Hello, do you have an idea how I can perform this workflow in R?

[@GEO2004]

I am sorry, I never using R,

[@juarezantonio656]

unfortunately for me at Copernicus it only appears to download the global cover LST-S3 in 2019 :(

[@GEO2004]

Hmm, I never check the availability prior to 2019, but there are products from other sensors like Modis or landsat that also provide similar products

[@primandaauliarachman6207]

Is that possible for Java island to reach temperature of -40?

[@GEO2004]

In celcius? That is not possible

[@primandaauliarachman6207]

I just saw your older answer about this thank you. But I had another problem. Why the pixel value doesn't show the right value of temperature when I inputted the processed raster data to QGIS?

[@GEO2004]

I don't know, I never tried it using qgis

[@primandaauliarachman6207]

@@GEO2004 thank you again, after reviewing your video once more time, I found myself missed a bit at the tutorial 😂. Wish the best for you, teacher 🙏

[@GEO2004]

Hahaha all righttt

[@mikefiifia-m]

Where is the link to download the multiple data

[@prajwalparmar4486]

Do we need to preprocess the data ?

[@GEO2004]

Nope

[@mariagkolemi6880]

Timestamps Intro 00:00 Download data from Copernicus Open Access Hub 0:27 Load Data into SNAP 2:25 Reproject data so it's displayed correctly 3:30 Export data as tif 4:45 Open with ArcGIS 5:30

[@GEO2004]

thanks, wish more people doing this!

[@mrfaizi2450]

Sir i have done the same until 5:36 ..But after exporting and opening in ArcMap it shows layer in RGB not in high and low values. help me to fix ..where i am doing mistake.

[@mrfaizi2450]

And the exported file have three more bands.

[@GEO2004]

I am sure you missed the export step at 5:09

[@mrfaizi2450]

@@GEO2004 you should clear your audiance that export the lst from reprojected layer .... I was doing it with the same lst layer that is in my raw data ... So i spent a lot of time to fix my mistake... Please elaborate..

[@GEO2004]

oh I am so sorry if it is not clear for you, so, is finally you able to export the correct layer?

[@mrfaizi2450]

@@GEO2004 yes ..But i have spent a lot of time ...😅and learned a lot .Thanks .Take care

[@monaallam130]

Thanks for this video, where the link of the other video to download multiple data

[@GEO2004]

Will upload soon

[@Lickanx3]

thanks, is very nice. You know if i can use this LST for geothermic exploration ?

[@GEO2004]

It is possible, but only on wide area geothermal phenomena due to the low resolution of slstr

[@Lickanx3]

@@GEO2004 ok, thaks, how is the resolution?

[@GEO2004]

One kilometers

[@filippogregori2724]

Thanks!!! Wow

[@GEO2004]

You're welcome!

[@sondangdamayanti850]

bisakah cara ini digunakan untuk sst?

[@GEO2004]

Bisa, saya buatkan videonya

[@sondangdamayanti850]

@@GEO2004 terimakasih

[@poki_1997]

those temperature aren't real, how can you have 40°C and 10km away you have -40°C ..

[@GEO2004]

Have you tried it ? Could you confirm is there any valid pixels that have -43 °c temperature? If you are only looking the legend in the thumbnails and commenting out about that, well I dont have any words to response

[@keertimanisha]

same question. It is ranged too far apart. please help.

[@GEO2004]

The range is a result from calculation involves all over the scene area. Try to make a subset of your data. And the outliers will be gone

[@samueli26]

those minus temperatur because cloud intrupt

[@GEO2004]

Indeed