@@dawnofgeospatialworld but i see you use images without the “RT” in front of the filename (which indicates that no atmospheric correction is done). Does the landsat file in this video go through atmospheric corrections? If yes, can you show me how? Thank you
The process will be same. Just check the band numbers for Landsat 5. like Thermal band of L5 is B6. In the LST calculation formula, put 11.45 for w value (10.8*BT/14388)
@@rayjaybalderama3443 As you can see in this video, if you need inland water surface temperature, you can use LST method. There are some small waterbodies in that location & surface temperature was calculated. But if you want to calculate sea surface temperature, there will be different method to calculate that.
I had the same problem, i fixed it by checking my initial data from landsat8. For this tutorial you have to use Lvl 1 data instead of Lvl 2. (In my case i used [ L1TP ] instead of [ L2SP ] from Landsat8)
Make a tutorial on future prediction of LST map
Esta formula solo sirve para Ladsat 8, este procedimiento puede servir para Landsat 5 o 9 ?
For Landsat 5 & 7: ruclips.net/video/UmxjBwGK56g/видео.html
Ma'am for Min NDVI values is negative but in the PV formula you taken as positive value instead of (-0.172219)
two negative signs makes one positive sign. (if we minus any negative value then, '- ' + '-' = +)
@@dawnofgeospatialworld at 4:59 shouldnt it be like:
( ( NDVI - ( - 0.172219 ) / ( 0.619821 - ( -0.172219 ) ) )
thus
( ( NDVI + 0.172219 ) / ( 0.619821 + 0.172219 ) )
Doublechecking myself by this example:
ruclips.net/video/weYG1c1pRS8/видео.html
@@АртурГолятин when two minus signs come then it becomes plus sign
Please, does the procedure of LST retrieval require preprocessing for the thermal band?
no
Do we need to do atmospheric correction with SCP plugin before doing this calculations or no?
Yes, Atmospheric correction is needed
@@dawnofgeospatialworld but i see you use images without the “RT” in front of the filename (which indicates that no atmospheric correction is done). Does the landsat file in this video go through atmospheric corrections? If yes, can you show me how? Thank you
@@ferrellananda Follow the step 1 (Top of Atmosphere)
@@ferrellananda You can check this video also, ruclips.net/video/UmxjBwGK56g/видео.htmlsi=Z72NKBSgNgfeQjar
Hi! thank you, very helpful :) do you have a scholarly source for the method you've used in this video that you could link here?
This is a general method. You can search articles in google scholar.
we to use this method? if we donwload and extract thermal data from ERA 5 or Nasa is it the same?
Maybe data will be little bit changed
❤
more useful thank you
You are welcome
Thank you so much!
We are happy to help you!
Hello, my value of radiance_add_band for landsat 7 is -0.06709, should i still use the negative sign or ignore it?
Yes, Use the negative sign
Is this methodology based on research? If so, can you tell me the name of the article?
This is the general methodology for calculating LST from Landsat 8-9 images
@@dawnofgeospatialworld Este metodo sirve para Landsat 5?
at 6:17 if I use landsat9 do I still have to use 10.8 for wavelength?
Yes You can use 10.8 for Landsat 8 & 9
Ma'am is it same for landsat 4,5 data
For Landsat 5/7 : ruclips.net/video/UmxjBwGK56g/видео.html
how can we calculate LST using SCP?
What would be the LST formula for Landsat 5 TM sensor?
The process will be same. Just check the band numbers for Landsat 5. like Thermal band of L5 is B6.
In the LST calculation formula, put 11.45 for w value (10.8*BT/14388)
can it be used for water temperature?
Yes you can use it, but it doesn't give the accurate temperature for all time because of the temp. difference between Land & Water.
do I still need to calculate the ndvi for water temperature? If not, what should I calculate?
@@rayjaybalderama3443 You can Check Chlorophyll Index instead of NDVI. But I don't think This method will that much effective for Water Temperature.
@@rayjaybalderama3443 As you can see in this video, if you need inland water surface temperature, you can use LST method. There are some small waterbodies in that location & surface temperature was calculated.
But if you want to calculate sea surface temperature, there will be different method to calculate that.
Hello mam, I'm doing same steps as you but my LST value is very high(53 to 81).
I'm using landsat 8...
Mask/clip with your study area
mine is coming 66to 81
using landsat 10
@@thenameisabii Landsat 10?
I had the same problem, i fixed it by checking my initial data from landsat8.
For this tutorial you have to use Lvl 1 data instead of Lvl 2. (In my case i used [ L1TP ] instead of [ L2SP ] from Landsat8)
please in LST I found a great value, I don't know what the problem is (min=309 and max=346)
Do you convert the BT value from Kelvin to Celsius?
@@dawnofgeospatialworld YES the problem is solved thank you
@@EMINOUELABGHARY PLEASE HELP ME... My value is big too.. how to resolve it?