#VegetationIndex
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gpgrs.bsky.social
Remote Sensing post👇
An interesting paper on optimizing the EVI (Enhanced Vegetation Index). 🌐🍁
#RemoteSensing #EnvironmentalMonitoring #PlanetScope #EO #SatelliteImagery #Forestry #GIS #EVI #VegetationIndex #NDVI #optimization

Many thanks to
@rvnfxri.bsky.social
and
@sajadsayadi.bsky.social
sajadsayadi.bsky.social Sajad Sayadi @sajadsayadi.bsky.social · Sep 22
‪Sajad Sayadi‬
Classic NDVI can be fuzzy over bright soils and sparse canopies. We re-parameterized EVI with PSO for semi-arid mountains on Sentinel-2.
Have you tried scene-specific EVI tuning?

#RemoteSensing #EVI #Vegetation #Indexes #PSO #Sentinel2

See more details here👇 doi.org/10.1109/Metr...
NDVI (left) vs PSO-tuned EVI (right) in semi-arid mountains; the optimized EVI produced a wider vegetation value range, higher variance, and mapped more vegetation pixels than NDVI and the conventional EVI.
October 30, 2025 at 1:53 PM
sajadsayadi.bsky.social
Looking for something better than NDVI as a vegetation index?
Follow the flowchart below.

#RemoteSensing #Vegetationindex #NDVI #EVI #Sentinel2 #Workflow

See more details here👉 doi.org/10.1109/Metr...
Flowchart for moving beyond NDVI: Sentinel-2 multispectral data feeds two paths: (a) Generation of NDVI; (b) Calculate EVI coefficients with PSO → Classification with EVI. In parallel, Google Earth imagery → Manual classification (veg/non-veg).
September 27, 2025 at 11:26 AM
sajadsayadi.bsky.social
We conducted a binary visual comparison of EVI vegetation maps (traditional vs optimized) over a semi-arid mountain site.

#RemoteSensing #EVI #SemiArid #VegetationIndex #Optimization #Binarymap

See more details here👇 doi.org/10.1109/Metr...
Red: vegetation by tuned EVI but non-vegetation by traditional EVI; Blue: the opposite
September 24, 2025 at 6:22 PM
kiwiincolorado.bsky.social
Progress In High-Resolution #Vegetation #Mapping - #China's Leap Toward Advanced #Environmental #Monitoring
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tinyurl.com/nkcw4whs
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#GIS #spatial #remotesensing #imagery #FVC #NDVI #model #modeling #agriculture #spatialanalysis #spatiotemporal #vegetationindex #farming #crops #climatechange
January 25, 2024 at 9:17 PM