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nikobesic.bsky.social
Nikola Besic
@nikobesic.bsky.social
590 followers 370 following 41 posts
Environmental remote sensing and spatial modeling (🛰〰️🌳, previously 📡〰️🌧️), randonnée 🥾, vélo 🚲, et théâtre 🎭 :) 📍 LIF - Géodata Paris / French Mapping Agency (@ignfrance.bsky.social) + info ➡️ https://nbesic.github.io
nbesic.github.io
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cnrs.fr
CNRS @cnrs.fr · 12d
Le réchauffement climatique n’est pas une « arnaque ». C’est un fait.

Face aux nouvelles déclarations climatosceptiques de Donald Trump, les scientifiques du CNRS réagissent en rappelant les faits.
👉 www.cnrs.fr/fr/actualite...
Le réchauffement climatique n’est pas une « arnaque ». C’est un fait
Face à la nouvelle négation du changement climatique par Donald Trump, les scientifiques du CNRS réagissent en rappelant les faits et les leviers d’acti
www.cnrs.fr
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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · 11d
Multiple models, one forest: a Bayesian perspective.

Led by Nicolas Picard, we combined climate-sensitive forest models to see where they agree - and where they don’t.

A better way to predict European beech’s future in a changing climate.

Read more 👉 authors.elsevier.com/c/1lrB815DJ-...
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Reposted by Nikola Besic
tguinaldo.bsky.social
Thibault Guinaldo @tguinaldo.bsky.social · 13d
La Journée mondiale de la mer est aujourd'hui.
Pour l'occasion, un article grand public sur l'importance des océans dans le système climatique :

- une augmentation de l'acidité
- des extrêmes chauds + intenses et + chauds
- un niveau qui ↗️

Avec des conséquences désastreuses
👇
tinyurl.com/bdcmx2hb
L’océan face au changement climatique | Météo-France
En absorbant la chaleur, l'océan a un important effet modérateur sur le climat et ses changements. Il est aussi particulièrement vulnérable au réchauffement climatique global et à l'augmentation du co...
tinyurl.com
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Reposted by Nikola Besic
corneliussenf.bsky.social
Cornelius Senf @corneliussenf.bsky.social · Sep 4
Want to do a PhD in remote sensing? Interested in mountain forest ecosystems? Then apply for a PhD position in our lab! You will be part of the newly founded Centre for Forest Management in the Alps, working on scaling tree productivity from tree to landscape scale. Deadline 21st September.
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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Aug 24
Many thanks to Martin, Philippe, and all other co-authors for the great collaboration!

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Aug 24
🔍 More highlights:

- Height time series captures local forest growth, validated with ALS.

- Species-specific height–age curves consistent with field data.

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Aug 24
🔍 Highlights:

- Yearly forest height, AGB, and GSV maps (2018–2024) at 10–30 m resolution in France.

- Canopy height validated with NFI data (MAE = 3.07 m).

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Aug 24
Happy to be part of the team led by Martin Schwartz (@lsce-ipsl.bsky.social) behind our new publication:

“Retrieving yearly forest growth from satellite data: A deep learning based approach.”

📖 Published in Remote Sensing of Environment:
www.sciencedirect.com/science/arti...

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Retrieving yearly forest growth from satellite data: A deep learning based approach
High-resolution mapping of forest attributes is crucial for ecosystem monitoring and carbon budget assessments. Recent advancements have leveraged sat…
www.sciencedirect.com
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Reposted by Nikola Besic
remybeugnon.bsky.social
Rémy Beugnon @remybeugnon.bsky.social · Jul 9
🌳 One of my dearest projects—with brilliant friends and colleagues—is out in @NatureComms

We show that how you plant tree species (not just which) can significantly boost forest functioning.

🔗 rdcu.be/evtXs

👇 A short thread
rdcu.be
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Reposted by Nikola Besic
kirstenkrueger.bsky.social
Kirsten Krüger @kirstenkrueger.bsky.social · Aug 4
Interested in working with a fun and inspiring team? We are looking for a new PhD (mountain forest management) and PostDoc (forest adaptive capacity, w/ @juditlecinadiaz.bsky.social)

Comes along with:
🧗🏻‍♀️ mountain/ sport buddies
🙃 good + bad jokes
☕️👬amazing social time
💭 great ideas and conversations
rupertseidl.bsky.social
Rupert Seidl @rupertseidl.bsky.social · Jul 24
Come work with us! We are looking to fill a PhD (mountain forest management) and PostDoc position (forest adaptive capacity, w/ @juditlecinadiaz.bsky.social). We'd be happy to have you as part of our dynamic team!

PhD: www.lss.ls.tum.de/fileadmin/w0...

PostDoc: www.lss.ls.tum.de/fileadmin/w0...
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Reposted by Nikola Besic
realhopejahren.bsky.social
Hope Jahren @realhopejahren.bsky.social · Aug 2
Keep sciencing. We are living through a time when looking at a rock and wondering how old it is qualifies as an act of resistance.
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Reposted by Nikola Besic
publicsenat.fr
Public Sénat @publicsenat.fr · Jul 29
#Archives2025 👉En France, la baisse des émissions de gaz à effet de serre prévue en 2025 n’est que de 0,8 % selon le baromètre du Citepa. Un chiffre jugé alarmant par le climatologue Jean Jouzel, qui dénonce un « relâchement » général.

➡️ https://go.publicsenat.fr/Gy7
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Reposted by Nikola Besic
lsce-ipsl.bsky.social
Laboratoire des Sciences du Climat et de l'Environnement @lsce-ipsl.bsky.social · Jul 23
Replay et diapos du séminaire sont disponibles (lien 🎥)

@valmasdel.bsky.social revient sur les principales conclusions du dernier rapport du @hc-climat.bsky.social qui a été présenté puis remis au premier ministre la semaine dernière.

www.lsce.ipsl.fr/replay-semin...

@cea.fr @ipsl.bsky.social
[Replay] Séminaire de Valérie Masson-Delmotte - LSCE
Valérie Masson-Delmotte présente les principales conclusions du dernier rapport du Haut Conseil pour le Climat : "Relancer l'action climatique face à l'aggravation des impacts et à l'affaiblissement d...
www.lsce.ipsl.fr
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Reposted by Nikola Besic
monicapiccinini.bsky.social
Monica Piccinini @monicapiccinini.bsky.social · Jul 21
Human influence on Amazon’s aboveground carbon dynamics intensified over the last decade.

www.nature.com/articles/s41...
Human influence on Amazon’s aboveground carbon dynamics intensified over the last decade - Nature Communications
New high-resolution datasets for the Amazon forest show a loss of carbon in 2010-2020, with gains by forest growth outweighed by losses by deforestation and degradation. Human losses intensified over ...
www.nature.com
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Reposted by Nikola Besic
lecartographe.bsky.social
Le Cartographe 🗺️🍷 @lecartographe.bsky.social · Jul 17
La couv de Libe de demain
Titraille bien triste
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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Jul 16
🛠️ Try the tool: zenodo.org/records/1531...

Congrats again to @gbrldst.bsky.social for leading this important step toward more accurate and flexible flux measurements!

#EnvironmentalMonitoring #CarbonCycle #EcosystemFluxes #Wavelets

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gabdst/TurbulenceFlux.jl: v0.2.0
A Julia package for high resolution flux estimation
zenodo.org
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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Jul 16
📍 At the Hesse forest site (FR-Hes @icos-ri.eu), this method reveals:
– higher summer carbon uptake (+2 ± 1 µmol/m²/s)
– better nighttime respiration estimates
– strong agreement with standard EC

Implemented in TurbulenceFlux.jl (Julia)

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Jul 16
@gbrldst.bsky.social introduces a wavelet-based method to analyze turbulent fluxes in time & frequency, using a metric based on the vertical Reynolds stress tensor to adaptively localize turbulence.
This helps separate turbulence from advection.

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Jul 16
🌍 Flux towers are essential for tracking CO₂, water vapor, and heat exchange between ecosystems and the atmosphere.
But traditional 30-min eddy-covariance averaging often misses rapid responses to environmental change.

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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · Jul 16
🌱 New publication 🌱

Excited to share a study led by @gbrldst.bsky.social, now out in AMT:
"Turbulent transport extraction in time and frequency and the estimation of eddy fluxes at high resolution"
w/ myself, @e-joetzjer.bsky.social & @mcuntz.bsky.social

📄 amt.copernicus.org/articles/18/...

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Turbulent transport extraction in time and frequency and the estimation of eddy fluxes at high resolution
Abstract. We introduce a novel framework for estimating eddy fluxes using cross-scalogram smoothing, addressing key limitations of the standard eddy-covariance method. The standard approach suffers fr...
amt.copernicus.org
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Reposted by Nikola Besic
esa.int
European Space Agency @esa.int · Jun 23
🆕 The first stunning images from our groundbreaking #Biomass satellite mission have been released – they mark a major leap forward in our ability to understand how Earth’s forests are changing and exactly how they contribute to the global carbon cycle 🌳🌍

www.esa.int/Applications...
This image features part of Bolivia. This vibrant image was created using the radar instrument’s different polarisation channels, with each colour revealing distinct characteristics of the landscape. For instance, green hues mainly represent rainforest, red hues forested floodplains and wetlands, and blue–purple is indicative of grasslands, while black areas are rivers and lakes. The image spans approximately 90 km along the Biomass satellite's flight path (length) and 60 km across in width, with north oriented to the right.
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bonpote.com
Bon Pote @bonpote.com · Jun 21
"La France ne s'adaptera pas à un réchauffement climatique de +4°C"
Intervention magistrale de @cassouman40.bsky.social . Chaque phrase prononcée est précise et lourde de sens. Un discours lucide sur le service public qui mériterait d'être entendu de tous les Français.
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tommaso-jucker.bsky.social
Tommaso Jucker @tommaso-jucker.bsky.social · May 27
So excited to finally share our new paper charting the global spectrum of tree crown architecture, out today at @natcomms.nature.com ‬🧪🌐

Paper link 🔗: www.nature.com/articles/s41...

A brief thread of what we found 🧵
Schematic diagram showing the major axes of tree crown architecture
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nikobesic.bsky.social
Nikola Besic @nikobesic.bsky.social · May 23
Check out our preprint currently under review at Comptes Rendus. Géoscience - Sciences de la Terre (French Academy of Sciences).

We examine the current state of the French forest carbon sink and discuss how to enhance carbon sink quantification in the near future.

arxiv.org/abs/2505.11512
An outlook on the Rapid Decline of Carbon Sequestration in French Forests and associated reporting needs
In this study, we present and discuss changes in carbon storage in the French forests from 1990 to 2022, derived from CITEPA statistics on forest carbon accounting, fed by National Forest Inventory (N...
arxiv.org
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arthurobuntspecht.bsky.social
Arthur Gessler @arthurobuntspecht.bsky.social · May 10
High-income groups disproportionately contribute to climate extremes worldwide - Nature Climate Change
High-income groups disproportionately contribute to climate extremes worldwide - Nature Climate Change
While climate injustice is widely recognized, a quantification of how emissions inequality translates into unequal accountability is still lacking. Here researchers examine how affluent groups disproportionately contribute to the increase in mean temperature and the frequency of extreme events.
www.nature.com
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