Chappellaz Jérôme Profile
Chappellaz Jérôme

@ChappellazJ

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Full Professor at EPFL. Paleoclimatologist. Former Director of the French Polar Institute IPEV. Chairman of the ICE MEMORY Foundation.

Grenoble, France
Joined November 2013
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@JULLIENPierre
JULLIEN Pierre
11 months
En Antarctique, un forage atteint de la glace datant de plus de 1 million d’années ⁦@TAAFofficiel⁩ ⁦@PolarObs⁩ ⁦@_IPEV⁩ ⁦@ChappellazJ⁩ ⁦
lemonde.fr
Les recherches du projet européen Beyond Epica permettent aux scientifiques de reconstituer l’histoire du climat et de l’atmosphère de la Terre.
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@OldestIce
Beyond EPICA
11 months
The Beyond EPICA ice core drilling has finally reached the bedrock at a depth of 2800 m: this is a huge success for our project and for ice core science! We have strong indications that 1.2 million years of climate record are stored in the uppermost 2480 m of ice. 📸©PNRA/IPEV
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@OldestIce
Beyond EPICA
11 months
The drilling passed the depth of 2747 m and the processing is now only a few meters behind. Ice core boxes are being transferred to Mario Zucchelli Station. On January 2nd, the Australian MYIC team visited our camp and had some coffee and a cake (photo). 📸J. Westhoff©PNRA/IPEV
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@OldestIce
Beyond EPICA
11 months
For all these years, it was just a name, a hope, a dream. Now the water stable isotope measurements confirmed that we have officially surpassed EPICA Dome C as the oldest continuous ice core record! We are truly Beyond EPICA! Merry Christmas to everyone! 📸F. Scoto©PNRA/IPEV
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@NicolettiStef63
Stefano Nicoletti
1 year
Red alarm 🚨 : the glaciers are melting not only in the two Poles but especially in the high mountains of the world. The project @icememory_ aims collecting ice cores from 20 endangered glaciers around tho world in 20 years.
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@NicolettiStef63
Stefano Nicoletti
1 year
Thanks to ice cores, scientists are mapping out how the Earth environment and temperatures vary over millennia. A repository for the ice cores is under preparation near the Italo-French Concordia station in #Antartica: a natural freezer with a temperature around minus 55°Celsius.
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@forel_heritage
Forel Heritage Association
1 year
Learn more about the research conducted on board FOREL by scientists from @epflENAC https://t.co/5KgOISdqEx
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@epflENAC
EPFL-ENAC
1 year
This summer, two teams from @EPFL_en have visited the #Arctic. One to gain a better understanding of the air composition, the other to quantify the greenhouse gases sequestered in #Greenland fjords sourced by glacial water. @SwissPolar @ChappellazJ
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actu.epfl.ch
Climate change is particularly intense in the Arctic. To assess its consequences and determine what role this region plays in global warming, two teams of scientists from EPFL have visited the area....
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@forel_heritage
Forel Heritage Association
1 year
The « FOREL Greenland 2024 » expedition, initiated by the Forel Heritage Association, is coming to an end. FOREL docked at the port « La Base » in Lorient. The crew can now celebrate the success of this first mission before preparing FOREL for winter refit that lies ahead.
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@epflENAC
EPFL-ENAC
1 year
À Estavayer-le-Lac, un énorme bloc rocheux amené par un #glacier, intrigue. Jérôme Chappellaz, #glaciologue et #climatologue @EPFL, raconte l'histoire des blocs erratiques et leur importance pour comprendre les glaciers.
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rts.ch
Au programme aujourd'hui: 1. Invité fil rouge: Jérôme Chappellaz, glaciologue, climatologue et professeur à lʹEPFL 2. Grégoire, ambassadeur touristique à vélo 3. Les toits végétalisés Bluefactory 4....
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@epflENAC
EPFL-ENAC
1 year
Le professeur @LyesseLaloui était l'invité de la RTS. Au fil d'une promenade dans la nature, on apprend à mieux connaître du directeur du Laboratoire de mécanique des sols de @EPFL-ENAC et son expertise dans le monde des #géomatériaux. https://t.co/E9IiufSLoB
rts.ch
Au programme aujourd'hui: 1. Invité fil rouge: Lyesse Laloui, directeur du Laboratoire de Mécanique des sols à l'EPFL 2. Carte postale: à la recherche de la molasse, du centre de Mézières aux grottes...
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@forel_heritage
Forel Heritage Association
1 year
Environmental DNA (eDNA) sampling by Virginie Marquez, postdoc in the group ELE (Ecosystems and Landscape Evolution) directed by Professor Loïc Pellissier @loic_pellissier, @ETH and @wsl_research | Spatial dynamics of #biodiversity | Environmental DNA. https://t.co/HWtRl31qD1
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@_CARVICE_
CARVICE_ocean
1 year
Sediment-rich water plume spreading into the fjord and reaching Sanna. Beautiful hydrodynamics!! Zoragarria 🤩@FGSE_UNIL @epflENAC @ClimactSuisse @UCT_news @NisotopesUCT @SwissPolar @ElhuyarZientzia @berria
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@forel_heritage
Forel Heritage Association
1 year
Scientific briefing to determine the day's sampling order. Samuel Jaccard @jaccsa (climatologist & professor @fgse_UNILand) and Julia Schmale (professor @EPFL, specialist in the composition of the atmosphere, aerosols and their interaction with clouds). @SwissPolar @epflENAC
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@mellelamoureux
Marine Lamoureux
1 year
"L’Arctique est la région du monde qui se réchauffe le plus" A l'occasion de notre série d'été en six épisodes sur le Svalbard, archipel qui concentre les grands défis contemporains, lisez notre entretien avec @ChappellazJ https://t.co/ihHZDZoCYw @elobern @LaCroix #Climat
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la-croix.com
À l’occasion du lancement dans « La Croix L’Hebdo » de notre reportage sur le Svalbard, en Norvège, Jérôme Chappellaz, glaciologue, professeur à EPFL (École polytechnique fédérale de Lausanne),...
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@laBnF
La Bibliothèque nationale de France
1 year
❄️ L’Arctique et l’Antarctique, pour en apprendre davantage sur les questions environnementales liées au réchauffement climatique et les enjeux stratégiques et géopolitiques en lien avec ces deux espaces aux pôles du globe : https://t.co/chV0CMtKDM
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@SwissPolar
Swiss Polar Institute @swisspolar.bsky.social
1 year
#GreenFjord field campaign #update
@forel_heritage
Forel Heritage Association
1 year
Jérôme Chappellaz preparing the Sub-Ocean probe, allowing measurements of dissolved methane in seawater. Jérôme is trying to determine whether the Greenland ice sheet is a significant source of naturally occurring methane. @ChappellazJ @SwissPolar @EPFL_en @jaccsa Greenfjord
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@forel_heritage
Forel Heritage Association
1 year
#Science onboard: FOREL's CTD-rosette is out of the water. The oceanographic activities of the GreenFjord project @SwissPolar coordinated by Pr. Jaccard @jaccsa (@EPFL_en). In background Pr. Chappellaz @ChappellazJ (@EPFL @CNRS), S. Lavanchy (ETS/HES) and Erwan (FOREL's crew).
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@icememory_
Ice Memory Foundation
1 year
🏆 [From the #Antarctic Treaty System to the ice memory heritage] Shipping of the Ice Memory ice cores to Antarctica are officially approved by the #ATCM! “In principle, we can start tomorrow to transport Ice Memory cores to Antarctica“ - @CarloBarbante vice-chair of #IceMemory
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@jaccsa
Samuel Jaccard
1 year
Ocean and atmosphere research in SW Greenland in full swing aboard RV Sanna! We are precisely aiming to better understand the role of melting ice on biological productivity, GHG fluxes and aerosol production @SwissPolar @_CARVICE_ @epflENAC @ISTE_UNIL @usys_ethzh
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