Pascal Hagenmuller (@docmepra) profile picture

Pascal Hagenmuller

@docmepra

Passionate about snow and mountains for my work @meteofrance @CNRS and leisure

 Grenoble, France
Joined February 2019
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  • Following84
  • Followers146
Trying another way to share our field campaign on social media. Follow us on Instagram.
IVORI ERC Project (@ivori_erc) profile pictureIVORI ERC Project@ivori_erc15 Sep 2023
Replying to @ivori_erc
follow our story : instagram.com/ercivori/
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Pascal Hagenmuller retweeted
IVORI ERC Project (@ivori_erc) profile picture
IVORI ERC Project@ivori_erc7 Jul 2023
Our Ct scanner is almost ready to depart for #CHARS 🤞🏻🤞🏻🤞🏻🤞🏻 for the safe transportation and successful installation in the high arctic to discover the wonder of arctic snow microstructure
Image from IVORI ERC Project (@ivori_erc)
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Melaine Le Roy (@subfossilguy) profile picture
Melaine Le Roy@subfossilguy25 May 2023
St Sorlin Glacier will disappear by 2050! 🥵😱 (much sooner than previously expected!) This result is irrespective of the climate scenario used and it applies to most of the glaciers in French Alps (75%) whose accumulation area lies below 3400 m asl... lameteorologie.fr/issues/202…
Image from Melaine Le Roy (@subfossilguy)
Image from Melaine Le Roy (@subfossilguy)
Image from Melaine Le Roy (@subfossilguy)
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Int. Glaciol. Soc. (@igsoc) profile picture
Int. Glaciol. Soc.@igsoc19 May 2023
New JOG paper! “Snow and avalanche climates in the French Alps using avalanche problem frequencies” by Benjamin Reuter, Pascal Hagenmuller, Nicolas Eckert --> doi.org/10.1017/jog.2023.23 @INRAE_Lyon_Gre @SLFDavos @meteofrance @CNRS @docmepra
Figure. 2. Assessing avalanche problem types for natural release: the type of weak layer and the snow instability indicators for two avalanche release processes are subsequently combined with weather information (trigger) to derive the problem type. In some cases, two avalanche problem types are used to describe the situation, e.g. a non-persistent weak layer within the recent snow and a persistent weak layer.

ALT Figure. 2. Assessing avalanche problem types for natural release: the type of weak layer and the snow instability indicators for two avalanche release processes are subsequently combined with weather information (trigger) to derive the problem type. In some cases, two avalanche problem types are used to describe the situation, e.g. a non-persistent weak layer within the recent snow and a persistent weak layer.

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ALPALGA (@ALPALGA1) profile picture
ALPALGA@ALPALGA14 May 2023
The 📷contest @ALPALGA1 2023-2024 is open! Hikers, trekkers, sportspeople, scientists, share your emotions in front of the red snows in mountains and subpolar regions! Help scientists to a 1st participatory census! With @kilianfound. Tell your friends! alpalga.fr/en/photo-contest/
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The Cryosphere (@EGU_TC) profile picture
The Cryosphere@EGU_TC26 Apr 2023
New research article: Can Saharan dust deposition impact snowpack stability in the French Alps? doi.org/10.5194/tc-17-1755-2…
Can Saharan dust deposition impact snowpack stability in the French Alps?

Can Saharan dust deposition impact snowpack stability in the French Alps?

Abstract. Saharan dust deposits can turn snow-covered mountains into a spectacular orange landscape. When avalanches release, a formerly buried dust layer can become apparent, possibly marking the...

tc.copernicus.org
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Bad year to collect snow for @ivori_erc, with one of the worst winters since 1960-1961 at Col de Porte (1325 m, France) in terms of snow depth. Typically for the end of February, the average snow depth is 110 cm, the 20th quantile is 65 cm, and now there is only about 6 cm.
Snow depth climatology at Col de Porte, Chartreuse, France, 1325 m for the last 62 years. The current winter 2022-2023 is shown in pink.

ALT Snow depth climatology at Col de Porte, Chartreuse, France, 1325 m for the last 62 years. The current winter 2022-2023 is shown in pink.

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Intéressé.e par l'instrumentation de pointe sur la neige à Météo-France ? Fait rare : un poste de technicien supérieur instrumentation (H/F) est ouvert en externe dans mon équipe au centre d'études de la neige. Détail et candidature ici : place-emploi-public.gouv.fr/…
Image from Pascal Hagenmuller (@docmepra)
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Int. Glaciol. Soc. (@igsoc) profile picture
Int. Glaciol. Soc.@igsoc16 Dec 2022
New JGLAC FirstView article! "Disentangling creep and isothermal metamorphism during snow settlement with X-ray tomography” by Antoine Bernard, Pascal Hagenmuller, Maurine Montagnat, Guillaume Chambon > doi.org/10.1017/jog.2022.109 @CNRS @IGE_Grenoble @Univ_Toulouse @docmepra @egg_igs
Fig. 4. Vertical slices of segmented tomographic images for sample S2 representing the same region (a) before loading; (b) after 120 h under a dead load of 2.1 kPa. Note that most grains remain well identifiable in the two images. The volume (b) after 120 h is smaller to reflect the compaction.

ALT Fig. 4. Vertical slices of segmented tomographic images for sample S2 representing the same region (a) before loading; (b) after 120 h under a dead load of 2.1 kPa. Note that most grains remain well identifiable in the two images. The volume (b) after 120 h is smaller to reflect the compaction.

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Marie Dumont (@mpneige) profile picture
Marie Dumont@mpneige13 Dec 2022
Brillant PhDdefense from Léo Viallon-Galinier on the use of physical modeling and machine learning for #snow #avalanche risk forecasting, supervised by @docmepra and Nicolas Eckert, CNRM/CEN and INRAE ❄️🏔 Exciting perpectives for operational avalanche risk forecasting ! 👏🏻 – at Grenoble, France
Image from Marie Dumont (@mpneige)
Image from Marie Dumont (@mpneige)
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Pascal Hagenmuller retweeted
Marie Dumont (@mpneige) profile picture
Marie Dumont@mpneige17 Nov 2022
Hi snow and avalanches people 🏔️❄️⛷️ Wondering if dust deposition impact snow stability ? Our attempt of answer here : tc.copernicus.org/preprints/… in discussion @EGU_TC
Image from Marie Dumont (@mpneige)
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GLAMOS (@glamos_ch) profile picture
GLAMOS@glamos_ch28 Sep 2022
Worse than 2003: Swiss glaciers melted like never before More than 6% or 3 km3 loss of ice during one single year! Simply incredible... Check out media release by @scnatCH scnat.ch/en/uuid/i/2e076759-…
Image from GLAMOS (@glamos_ch)
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-30 degree Celsius + brand new tomograph with an effective resolution down to 2-3 micron + happy faces = sounds good for project @ivori_erc !!!
Team IVORI in front of the tomograph TomoPolar at -30C

ALT Team IVORI in front of the tomograph TomoPolar at -30C

JIMA phantom showing an effective resolution < 3 microns

ALT JIMA phantom showing an effective resolution < 3 microns

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Time to unwrap the presents from @ivori_erc. Long-awaited tomograph #ProCon just arrived at #CEN #CNRM. Looking forward to using it to capture snow microstructure in the Alps (2022/23) and the Arctic (2023/24) #CHARS
Image from Pascal Hagenmuller (@docmepra)
Image from Pascal Hagenmuller (@docmepra)
Image from Pascal Hagenmuller (@docmepra)
Image from Pascal Hagenmuller (@docmepra)
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HDR defense « Snow mechanics: from snow microstructure to avalanche formation » #CNRM #CEN ✅ !!! – at Meylan, France
Image from Pascal Hagenmuller (@docmepra)
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Our journal was today officially launched at the #ICTMS conference, we look forward to support the #tomography community! Open access fees fully waived and the race is on for the first paper in the journal elsevier.com/locate/tmater Please share/retweet
Image from Tomography of Materials & Structures (@TomographyJrnl)
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Int. Glaciol. Soc. (@igsoc) profile picture
Int. Glaciol. Soc.@igsoc25 Jun 2022
Abstract submission deadline to the IGS/SLF - Intl Symposium on Snow is fast approaching. The symposium is being held in Davos, Switzerland 25 - 30 September 2022 at the Davos Congress Centre. Submit your abstract ASAP and register your interest to attend. igsoc.org/event/davos_2022
Image from Int. Glaciol. Soc. (@igsoc)
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IVORI ERC Project (@ivori_erc) profile picture
IVORI ERC Project@ivori_erc23 Jun 2022
🚨job alert🚨 Skilled in numerical model design and programming ? Join our #ERCStG Project IVORI ! We are looking for an engineer for the implementation and optimization of a exciting new snow model ! Please RT More here : umr-cnrm.fr/IMG/pdf/engineer…
Image from IVORI ERC Project (@ivori_erc)
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Sanguina Nivalis (sang des glaciers), an algae living in snow. 2450 m, massif du Taillefer.
Image from Pascal Hagenmuller (@docmepra)
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Damn it ! Another 50 cm of new snow at col de Porte (1325 m), the snowpack height has just doubled in the last 48h, which means that the @ivori_erc intensive measurement campaign is not over yet 😞. At least it is beautiful and funny with the kids 😃.
Image from Pascal Hagenmuller (@docmepra)
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