iiinova — where your digital self keeps evolving

Miguel D. Mahecha @miguelmahecha.bsky.social · 12/06/2026

This is a great opportunity at our university! Please forward to suitable candidates!

Miguel D. Mahecha @miguelmahecha.bsky.social · 25/05/2026

Thanks for inviting me to our neighbour university @uni-jena.de to tomorrow! See you at the BioGeoColloquium @ellisunitjena.bsky.social

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Reposted by Miguel D. Mahecha

Johannes Quaas @jquaas.bsky.social · 09/04/2026

If you haven't seen it yet, our international Conference on Connections between Biodiversity, Climate, and Human Behaviour is taking shape: cbc-conference.org Abstract deadline next Friday, 14 April. Great keynote speakers and nice side-events, please check out the programme or get in touch!

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Reposted by Miguel D. Mahecha

Eos @eos.org · 19/03/2026

Researchers analyzed 40 years of satellite greenness data and tracked the center of mass of global vegetation. They found that the planet’s center of greenness has been shifting northward and eastward and that this movement has accelerated over the past decade. eos.org/articles/ear...

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Miguel D. Mahecha @miguelmahecha.bsky.social · 25/03/2026

Come and join my team and work with the amazing @gdkrmr.bsky.social !

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Miguel D. Mahecha @miguelmahecha.bsky.social · 05/03/2026

As described in the paper the projection to the lat-long surface leads to an error and is misleading ... (multiple vectors can have the same lat-long positions) ...that is why a x,y,z-version is needed.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 05/03/2026

More specifically, check out this element greenwave.earth/centroid.html (... especially before calling it chartjunk! ... how sad... is this really how we want to communicate amongst scientist?? 🙈)

greenwave.earth

3D Centroid Explorer - The Green Wave

Explore the 3D centroid trajectory of global greening over time with The Green Wave interactive visualization.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 05/03/2026

We needed to show the centre of mass of global vegetation greenness, which lies inside the sphere — that’s the blue trajectory you see. The transparency allows this ... if we chose a viewing angle that makes this visible. If you have a better solution, we’d genuinely love to hear it 🙂

greenwave.earth

The Green Wave

Explore the Green Wave: interactive visualizations of global vegetation greenness and seasonal dynamics, with trajectories, centroids, and climate-related context.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 05/03/2026

The transparency is functional! The quantity we estimate (the centre of global vegetation greenness in this case) lies inside the sphere, while the data are on the surface. We made the sphere transparent to show both the interior point and the surface pixels contributing to it @gdkrmr.bsky.social

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Miguel D. Mahecha @miguelmahecha.bsky.social · 03/03/2026

And now in عربي Arabic! Thanks to Khalil Teber!

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Miguel D. Mahecha @miguelmahecha.bsky.social · 01/03/2026

Our PNAS paper in a mini nutshell! www.pnas.org/doi/10.1073/...

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Reposted by Miguel D. Mahecha

iDiv Biodiversity Research @idiv-research.bsky.social · 23/02/2026

🌍 The earth’s green is increasing and its centre is moving north-east. Vegetational shift to the north is even stronger in the southern summer – surprising new facet of #globalgreening 🌱 Published in PNAS 1/x

The greenness of the Earth’s terrestrial vegetation changes throughout the seasons. Researchers can calculate the global “green centre” and track its movement over several decades. They have observed a gradual shift towards the north-east. By Ida Flik. https://greenwave.earth/

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Reposted by Miguel D. Mahecha

Proceedings of the National Academy of Sciences @pnas.org · 27/02/2026

The wave of green that sweeps Earth from the north in boreal summer to the south in austral summer is shifting due to climate change. Researchers found the centroid of the wave moving northward since 1982 and eastward since 2010. In PNAS: ow.ly/PjPU50YmYKz

Global greenness in September. Shown is a globe depicting average global terrestrial greenness in September, visualized as “height over ground” and averaged over the period 2000–2023. Greenness is derived from satellite remote-sensing observations provided by NASA’s Moderate Resolution Imaging Spectroradiometer and illustrates the large-scale spatial distribution of vegetation activity across the terrestrial biosphere.
CREDIT: Ida Flik

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Miguel D. Mahecha @miguelmahecha.bsky.social · 27/02/2026

This website and design is done my the amazing Ida Flik - half scientist, half data journalist: idaflik.github.io

idaflik.github.io

portfolio — ida flik

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Miguel D. Mahecha @miguelmahecha.bsky.social · 27/02/2026

and German 😜 ... and we had no time for more... but depending on the responses might consider it soon! What do you think? Helpful?

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Miguel D. Mahecha @miguelmahecha.bsky.social · 27/02/2026

Our team is highly international! When we came close to publishing our latest PNAs paper, we decided to use that diversity not only in the research — but also in the outreach. We built an interactive website explaining the results greenwave.earth in Chinese ...

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Miguel D. Mahecha @miguelmahecha.bsky.social · 27/02/2026

With this I am referring to this study: www.pnas.org/doi/10.1073/...

google.com

Google Search

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Miguel D. Mahecha @miguelmahecha.bsky.social · 27/02/2026

Interesting media pattern: our new PNAS paper on the global green wave is mostly covered in languages linked to the authors (German, Spanish, Italian …), strongest response from DE. Why does the origin of a study matter so much for coverage when the science itself is global? bsky.app/profile/migu...

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Reposted by Miguel D. Mahecha

Tobias Goldhammer @tgoldhammer.bsky.social · 24/02/2026

This is soooo cool. Check out this thread and the paper by @miguelmahecha.bsky.social @gdkrmr.bsky.social and colleagues and also make sure to play with the moving viridistice at greenwave.earth 💚

greenwave.earth

The Green Wave

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

Want to play with the idea?? greenwave.earth

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

This was a real team effort — huge thanks to all co-authors for the ideas, critical questions, and interpretation! Here I find @gdkrmr.bsky.social @dmlmont.bsky.social @meggart.bsky.social @anabastos.bsky.social @agwirthweigelt.bsky.social @jquaas.bsky.social @unileipzig.bsky.social

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

One conceptual aspect I especially like: We can now quantify biosphere change in kilometres per year — turning abstract phenological shifts into something like a combined compass and speedometer for the planet. 🧭

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

Why does this matter? Vegetation regulates carbon uptake, water fluxes, energy exchange, and biodiversity. When the global centre of vegetation activity moves, Earth system functioning moves with it.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

But the changes were surprising: 🌱 The centre of vegetation activity is shifting northeast. 🌱 Both hemispheric summer turning points are moving northward 🌱 The movement has accelerated over roughly the last 15 years. 🌱 The north–south seasonal swing is shrinking.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

The seasonal oscillation is obvious as we know from simply looking at our data ...eg. via our lexcube.org

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

We turned this thought experiment into a global analysis, tracking the centre of mass of Earth’s leaf area and related greenness indicators.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

If these “green weights” were updated every day, the equilibrium point would continuously move — tracing a seasonal flight path across the globe. That moving point is what we call the global green wave.

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

Now imagine adding weights only where Earth’s vegetation is green at a given moment. In January, Southern Hemisphere ecosystems pull the centre downward. Months later, Northern ecosystems take over. 🌍

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Miguel D. Mahecha @miguelmahecha.bsky.social · 23/02/2026

Imagine a perfectly symmetric ball floating in water. If you attach weights representing land masses, the ball would orient so that the geographic centre of land points downward. 🏐

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Reposted by Miguel D. Mahecha

Karin Mora @karinmora.bsky.social · 18/11/2025

New preprint for the #DeepFeatures project: Why choose between spatial detail and temporal fidelity in #EO data? We developed a #ContextAware #multimodalAI framework that unifies satellite data ( #Sentinel1 & #Sentinel2) into a single, high-resolution view of land surface properties. #AI4Science

Comparison between Sentinel-2 RGB imagery (left in each pair) and PCA projections of the learned feature embeddings (right) for twelve representative locations.

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Reposted by Miguel D. Mahecha

International Space Science Institute (ISSI) @issibern.ch · 23/10/2025

🌲🌲🌲 This week, @miguelmahecha.bsky.social and international colleagues examine as part of the ISSI Forum how genetic information can enhance the prediction and management of forest futures under accelerating climate change. 🌲🌲

Group photo of the participants of the ISSI Forum "Forest Genetic Resources and the Future Biomass in Forests: Implications for Climate and Policy, and the Pivotal Role of Earth Observation".

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