Cathy Clerbaux
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cathyclerbaux.bsky.social
Cathy Clerbaux
@cathyclerbaux.bsky.social
38 followers 25 following 16 posts

Physicist; Senior Scientist @ CNRS; Invited professor @ ULB
Satellite remote sensing expert

Videos
Environmental science 47%
Geology 19%
Posts Replies Media Videos

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · 11d
Hurricane Melissa passing over the Caribbean, as seen by the IASI satellite, which “observes” cloud temperatures. Winds exceeded 250 mph!

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Oct 6
Methane (CH4) is a greenhouse gas. You've all heard that cow farts contribute to global warming, but it's actually cow burps that release CH4...

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Sep 2
There you go, the ozone hole that returns every year, but is no longer growing. Proof that international environmental regulations work!
On the left are temperatures in the polar vortex, on the right are ozone concentrations for the last 30 days.

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Aug 20
IASI-NG - Day 8: Engineers found this image in the launch videos! The raptor survived 😀

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Aug 13
Hi Corwin. Yes ! Phoebe gave a GREAT seminar. I am still in Boulder. Will contact you when my new PhD starts, in October. He already worked on GW during its intership, with IASI. IASI-NG will be better as it has an improved S/N. But it will take months (9?) before we get the data. We keep in touch.

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Aug 13
Metop-SG was launched last night by Ariane 6, with the IASI-NG infrared remote sensor onboard !

It is the continuation of the IASI program launched 18 years ago. See our best-of here : youtu.be/87LoUXFBjx8
New discoveries to be expected, as the instrument has better instrumental specifications.
IASI Best of [2025]
YouTube video by Cathy Clerbaux
youtu.be

Reposted by Cathy Clerbaux

copernicusecmwf.bsky.social
Copernicus ECMWF @copernicusecmwf.bsky.social · Jul 15
Why are Europe and the Arctic warming twice as fast as the global average? Explore the science behind these regional trends in our latest article.
climate.copernicus.eu/why-are-euro...

#CopernicusClimate

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Jul 8
A look back at the exceptional heatwave at the end of June/beginning of July in France and Belgium: > 35°C measured at ground level for a week, that's 6-8°C higher than the average for the previous 15 years on the same dates.

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Jun 26
A very sunny June in Europe, as seen from space

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · May 8
Guess how much of the ocean floor humans have visually explored?

Less than 0.001%, the size of the blue square shown on the map of Belgium in the image below. More in this paper : www.science.org/doi/10.1126/...

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · May 1
A good summary of the media speculations for the recent electricity black out here : www.carbonbrief.org/qa-what-we-d...

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Jan 30
These 2 maps compare mortality in urban areas in Europe, between 2015 and 2099, for an “optimistic” and a “pessimistic” scenario. In green, the lives gained where it will be less cold; in purple, the excess mortality due to heat peaks. It's the Mediterranean region that's taking the biggest hit.

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Jan 24
It's not moving fast enough, but it's heading in the right direction...

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Jan 11
The 1.6°C temperature increase recorded in 2024 is a bit puzzling... more in this paper (in French): theconversation.com/pourquoi-le-...
Pourquoi le record de températures en 2024 est une surprise pour les scientifiques
Les températures records mesurées en 2024 ne s’expliquent que partiellement par les activités humaines émettrices de gaz à effet de serre. Celles-ci surprennent jusqu’aux scientifiques.
theconversation.com

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Dec 11
There are around 600 active volcanoes, with some 60 eruptions recorded every year. This image shows the sulfur dioxide (SO2) emitted by 4 volcanoes and carried by the winds, as observed by satellite in November.

Reposted by Cathy Clerbaux

sciencecqfd.bsky.social
La Science, CQFD @sciencecqfd.bsky.social · Dec 4
[RDV 16h !] #Ozone, molécule paradoxale. Stratosphérique, elle protège des rayons UV. Troposphérique, elle nuit à la santé humaine. Comment l’étudie-t-on dans ces différentes couches ? Où en est le fameux "trou" ? tinyurl.com/232uqj5n avec Sophie Godin-Beekmann et @cathyclerbaux.bsky.social

cathyclerbaux.bsky.social
Cathy Clerbaux @cathyclerbaux.bsky.social · Nov 25
Cold drop in Valencia, as seen by the IASI thermal infrared satellite