#greennessofcalgary — Public Fediverse posts

How much does landform position matter for vegetation dynamics across Calgary?

I explored how ΔNDVI (2025-2024) varies across geomorphon classes (summit, ridge, slope, hollow, valley, etc.) using a large spatial dataset (~194k observations).

A few key points from the analysis:
• Non-parametric Kruskal–Wallis test shows statistically significant differences between geomorphons
• However, the effect size is moderate (ε² ≈ 0.04)
• Distributions strongly overlap — landform position matters, but it is not a deterministic driver
• Median ΔNDVI tends to be higher in lower landscape positions (hollows, footslopes, valleys), consistent with moisture and accumulation controls

#EnvironmentalData #RemoteSensing #NDVI #LandscapeEcology #Geomorphology #DataAnalysis #RStats
#ReproducibleResearch #Calgary #GreennessOfCalgary #Sentinel2

Nose Hill Park, Calgary
Median composite of Sentinel-2 imagery (mid-May to mid-September 2025).
Band combination: 12-8-3, emphasizing substrate contrasts, vegetation structure, and moisture patterns.

#RemoteSensing #EarthObservation #Sentinel2 #OpenData #GIS #QGIS #GeoDataArt #GeoSpectralArt #Calgary #Alberta #UrbanEcology #GeospatialAnalysis #Canada #GreennessOfCalgary #Copernicus #CopernicusSentinel #NoseHillPark

📌 Thematic hashtags I use in my Mastodon posts

To help readers navigate the different topics I work on, I use several specialized hashtags.
Here is a short overview of each one:

#GreennessOfCalgary — my project on analyzing the vegetation patterns and green spaces of Calgary using remote sensing, classification, and cartography.

#ClimateOfCalgary — visualization and analysis of local meteorological data.

#SvystunovaGully — materials from my Independent long-term study of geochemical processes in groundwater around a high-mineralized mine-water impoundment in Svystunova Gully (https://doi.org/10.5281/zenodo.15528794).

#InhuletsRiver — posts related to the research project on the technogenic impact on the Inhulets River (Kryvyi Rih, Ukraine), in which I take part.

#GeoDataArt #GeoSpectralArt — beautiful images that emerge during the analysis of satellite data.

The list will expand as my projects evolve.