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#tidyverse — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #tidyverse, aggregated by home.social.

  1. Does urban greenery yield microclimatic cooling? Spatial analysis of Calgary (Summer 2025) shows a non-linear NDVI vs LST response.

    🛠 Stack: Google Earth Engine (Landsat 8/9, Sentinel-2) + R (terra, tidyverse).

    📊 Key Findings:
    🔹 Cooling Deficit (NDVI < 0.34): LST stays trapped at 35–36°C. Heat stress overrides evapotranspiration; saplings & isolated lawns fail to cool.
    🔹 Tipping Point (NDVI > 0.34): Cooling begins above 0.34. Dense canopy (NDVI > 0.70) suppresses LST below 28–30°C (6–8°C delta).

    💡 Takeaway: Urban forestry can't just count saplings. Without threshold canopy density, isolated greenery is decoration, not climate infrastructure.

    🔗 Link to the research:
    datastory.org.ua/calgarys-summ

    #RemoteSensing #GIS #RStats #rspatial #terra #tidyverse #GoogleEarthEngine #UrbanForestry #Calgary #YYC #OpenData #GreennessOfCalgary #FOSSGIS #Landsat #Sentinel2

  2. After dithered images my next obsession is 'workflow managers' 🎈Yesterday night I binged some videos from #riffomonas about #reproducible research (CC248 to CC256). He used #snakemake , which looked very nice! Now I also looked up #nextflow It looks fierce!
    I am going to learn one of them, and snakemake currently feels more approachable... But what do you think? Any advice? I want to use it in my #bioinformatics #pipeline s; I mainly write in R
    #rstats #tidyverse
    riffomonas.org