Google Earth Engine Tutorial: NDVI & NDWI
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- Опубликовано: 26 авг 2024
- This Google Earth Engine tutorial will show you how to get NDVI and NDWI using Sentinel-2 image.
The normalized difference vegetation index (NDVI) is a simple graphical indicator that can be used to analyze remote sensing measurements, often from a space platform, assessing whether or not the target being observed contains live green vegetation (Wikipedia).
Normalized Difference Water Index (NDWI) may refer to one of at least two remote sensing-derived indexes related to liquid water (Wikipedia).
Image: Sentinel 2 (TOA)
Filtering Image Collection Video: • Google Earth Engine Tu...
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Thank you so much for this great video tutorial. I will continue to follow your trainings.
Nice tutor. You are my inspiration
Nice
How to calculate land surface temperature by using sentinel 3 on GEE
wahh, saya telat nemu channel ini, subs dulu
wah lebih telat lagi saya mas ehehhehe
izin nyimak gan
please provide GEE code link also sir
I want to analyze an ndvi time series with the average values for each month in the series. Can you help me?
superbly done
youtube is the greatest teacher on this planet :)
sir, how can we export the ndvi image by giving a name to the the exported layer. for example, if i want to download some rainfall images the exported images will save by BAND1 Band 2 Band 3. i would like to have some meaning full names instred of having Band 1 band 2 band 3 some thing like May-01-2008..
Izin bertanya, apakah untuk mencari NDWI, nilai rgbVis harus sesuai range diatas (min: 0.004; max: 0.39)?
Nice video 👌👌👌
Caarry on broo..
Bigick
can we calculate the ndvi of wheat separately
Menarik om, pengen belajar jg
Ini bisa di export ke gdrive kah bang?
Mantap....lanjutkan bro
Hi, how can I calculate the average reflectance values on pixels from March until September for example? for each image I would like to know what statistics we have pixels for those wavelengths. Also, if in a place in Britain I have a pixel value for a terrain, how can I do a search to see if the same values are present elsewhere in Britain or why not in France? Thanks
Hi, thanks for coming
These Documentations may help you:
1. To get statistics of pixel values, you can check this: developers.google.com/earth-engine/reducers_reduce_region
2. How you can search the same values are present elsewhere, you can check this: developers.google.com/earth-engine/image_objects
@@INSGIS Grazie mille.
Prego!
Check this out. Display only specific pixels value. In this code, I only displayed each pixel that indicates non-vegetation area using NDVI
code.earthengine.google.com/a1a6aaed9da084af8561cd347e139048
izin bertanya kak, untuk pemberian warna apakah tidak ada klasifikasi khusus? dan bagaimana cara membedakan objek tersebut ?
Ada, berdasarkan range nilai NDVI dan NDWI-nya. Contoh, NDVI Min: -1 dan Max: 1. Bisa menggunakan visualisasi (Min Max), trus input jumlah warna sesuai dengan jumlah class yang ingin ditampilkan. Untuk cara native, kamu bisa lihat video ini ruclips.net/video/r1unfBs-KQ0/видео.html
assalamualaikum pak, apakah saya diperbolehkan untuk meminta contact person bapak? untuk keperluan penelitian saya.. terimakasih pak sebelumnyaa...
Where I can find palette for index?Thanks
there are a lot of resources, e.g developers.arcgis.com/javascript/latest/esri-color-ramps/
Como exportar para o GoogleDrive ? Grato.
code.earthengine.google.com/3d51924fd5834cbe55050b99f3c0a62b
What about VCI index ..? Is there any tutorial?
hmmmmmmm......
@@INSGIS I want link for that tutorial
How to export classified image
check this ruclips.net/video/jmQpVTqUtSU/видео.html. Just copy your classified image as a input in export function
mau nanya kak, untuk citra landsat bagaimana ya?
tinggal ganti nama band-nya mbak.. nir, red, dan swir di landsat ada di band mana.
@@INSGIS min kok gabisa ya pake ini min
@@INSGIS saya sudah pake nir B5, red B4, dan swir B6 sesuai diketentuan band nya
Assalamualaikum min, boleh saya ada keperluan untuk penelitian saya mengenai penggunaan Google earth engine, bisa gak min bikin tutorial masking Dan vegetasi mangrove Menggunakan landsat ?
waalaikumsalam.
Masking gmn mksdnya bg? Kalau lebih rinci mungkin saya bisa cba ngulik.
@@INSGIS misahin daratan dan perairan min
Perhitungan luas suatu perairan atau perhitungan luas tutupan lahan
@@hidayatjamaluli7984 Ini contoh misahin NDVI berdasarkan nilai. Mungkin bsa jadi referensi ruclips.net/video/r1unfBs-KQ0/видео.html
@@hidayatjamaluli7984 Ini contoh perhitungan luas ruclips.net/video/_26wHteF4Ig/видео.html