Jack Landy (@jclandy) header
Jack Landy (@jclandy) profile picture

Jack Landy

@jclandy

Associate Professor @cirfa_SFI @UiTNorgesarktis. Formerly of @Bristol_Glac @CeosUofm. Excited by all things sea ice.

 Tromsø, Norway
Joined January 2013
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Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)Photo by Jack Landy (@jclandy)
Jack Landy retweeted
Monojit Saha (@76mono) profile picture
Monojit Saha@76mono29 Jan 2025
1/ 📢 Excited to share our new research published in #TheCryosphere on snow depth estimation in the Canadian Arctic Archipelago using #Cryo2Ice satellite data! 🛰️ Here's a thread on what we found and why it matters. 🧵👇 tc.copernicus.org/articles/1…
Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations

Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations

Abstract. Observations of snow on Arctic Sea ice are vitally important for sea ice thickness estimation, bio-physical processes, and human activities. While previous studies have combined CryoSat-2-...

tc.copernicus.org
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Our work with Odile Crabeck, @HutterNils and @jclandy about the rapid decrease of sea-ice density in summer leading to non-decreasing ice freeboard during 0.6 m ice thickness loss:
Image from Evgenii Salganik (@jenyasalganik)
The Cryosphere (@EGU_TC) profile pictureThe Cryosphere@EGU_TC10 Sep 2024
Discussion open for comments on @EgUsphere: Impacts of air fraction increase on Arctic sea-ice thickness retrieval during melt season doi.org/10.5194/egusphere-20…
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At 87.5N, 15.5W we made quick stop to deploy an @UiTNorgesarktis weather station and and an @arctic_passion ice mass balance buoy. Fingers crossed they survive the drift towards Fram Strait and gather some valuable data. #NPIArcticOceanCruise #SUDARCO #Arctic
Image from Oceans & Sea Ice NPI (@OceanSeaIceNPI)
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☀️🧊 Great news! 🧊☀️ Cryo-TEMPO gets a new Summer Sea Ice product! #CryoSat’s remarkable 1⃣4⃣-year record of global ice and sea levels got another upgrade 📈 ☀️ Summer sea ice 🇦🇶 Southern Ocean data in Winter Sea Ice product ⏰ Near-real time functionality 🗺️ Extended coverage for Coastal Oceans & Inland Waters ➕more! 👉earth.esa.int/eogateway/news…
Sea ice North of Svalbard Credit: Peter Prokosch, through the GRID-Arendal resources library. Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0)

ALT Sea ice North of Svalbard Credit: Peter Prokosch, through the GRID-Arendal resources library. Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Generic (CC BY-NC-SA 2.0)

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Sea ice thickness estimates derived from #CryoSat measurements are used in the @metoffice global ocean–sea ice forecasting system 🌊🧊🗺️🔮 A new @ESSOpenArchive preprint tests the sensitivity of short-range forecasts to the snow depth, radar freeboard product and assumed radar penetration through the snowpack 🗞️ @CPOM_news @carmenjulianab @JulienneStroeve @jclandy @micheltsamados 🔗essopenarchive.org/users/746…
Image from ESA's CryoSat mission (@esa_cryosat)
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💚 Over the past few days, we've been exploring science for a green and sustainable society here at @ESA_EO 📢 And we've heard loads of updates from our favourite ice mission! 👇
Image from ESA's CryoSat mission (@esa_cryosat)
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🤩 Thank you so much to all these fantastic people who joined us in ESRIN this week to discuss the next improvements to CryoTEMPO - an incredible 13+ year record of Earth's ice and water - with more soon to come 🤩
Image from ESA's CryoSat mission (@esa_cryosat)
ESA's CryoSat mission (@esa_cryosat) profile pictureESA's CryoSat mission
@esa_cryosat14 Nov 2023
🧊⏰ CryoTEMPO time ⏰🧊 🗓️ Next week, 20-21 Nov, we have the CryoTEMPO User Consultation Meeting here in ESRIN 🧪 We'll analyse the test data set generated with the new processors that go into operation early next year 🗺️ New geographical regions & more to come 📺 Stay tuned!
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Discussion open for comments on @EgUsphere: Sea ice transport and replenishment across and within the Canadian Arctic Archipelago: 2016–2022 doi.org/10.5194/egusphere-20…
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Climate scientists are tearing their hair out, so why are millions not in the streets demanding #ClimateActionNow? Watch and share @MrNishKumar helping @FrediOtto rouse the masses in the latest punchy "Climate Science Translated" video! 🔥🌎 #NoNewOil #ClimateCrisis #Language
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Jack Landy retweeted
Dave Babb (@dave_babb) profile picture
Dave Babb@dave_babb12 Oct 2023
The Arctic Ocean has lost much of its multiyear sea ice (MYI). This is well understood, but what exactly has driven this loss? In our new paper we create a MYI budget to examine the relative contributions of export, melt and replenishment to MYI loss. agupubs.onlinelibrary.wiley.…
The Stepwise Reduction of Multiyear Sea Ice Area in the Arctic Ocean Since 1980

The Stepwise Reduction of Multiyear Sea Ice Area in the Arctic Ocean Since 1980

Multiyear sea ice (MYI) loss from the Arctic Ocean has primarily occurred through two stepwise reductions: 1989 and 2006–2008 1989 was the result of high MYI export, while 2006–2008 was the resul...

agupubs.onlinelibrary.wiley.com
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Jack Landy retweeted
Dave Babb (@dave_babb) profile picture
Dave Babb@dave_babb6 Oct 2023
The Open Access article will be out next week, but here's a little tease of our latest paper on one of the most dramatic changes occurring in the Arctic Ocean - The loss of multiyear sea ice & transition to a younger, thinner ice pack. This paper was a struggle, but here we are!
JGR Oceans (@JGROceans) profile pictureJGR Oceans@JGROceans5 Oct 2023
Multiyear ice once covered the majority of the Arctic Ocean, however its areal extent has declined with ice pack transitioning to a younger state that is more susceptible to melt. Babb et al., explore trends in multiyear ice export, melt and replenishment. agupubs.onlinelibrary.wiley.…
Image from JGR Oceans (@JGROceans)
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Jack Landy retweeted
JGR Oceans (@JGROceans) profile picture
JGR Oceans@JGROceans5 Oct 2023
Multiyear ice once covered the majority of the Arctic Ocean, however its areal extent has declined with ice pack transitioning to a younger state that is more susceptible to melt. Babb et al., explore trends in multiyear ice export, melt and replenishment. agupubs.onlinelibrary.wiley.…
Image from JGR Oceans (@JGROceans)
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A 2-yr Postdoctoral Position on modelling sea ice biogeochemistry is opened at the Norwegian Polar Institute, Tromsø, Norway (until Sep. 30). The position is funded by the RCN project BREATHE, led by Karley Campbell (UiT). jobbnorge.no/en/available-jo…
Image from Sebastien Moreau (@sebasti15137515)
Image from Sebastien Moreau (@sebasti15137515)
Image from Sebastien Moreau (@sebasti15137515)
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Jack Landy retweeted
Eero Rinne (@EeroRinne) profile picture
Eero Rinne@EeroRinne23 Aug 2023
Want to live in the high Arctic? Know your way around research instruments? Want to facilitate Arctic education and research? jobbnorge.no/ledige-stilling… (To Finnish followers: Yes. Finnish-Swedish is a Scandinavian language. If you did tjänstemannasvenska at uni, you'll be fine!)
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Jack Landy retweeted
Dave Babb (@dave_babb) profile picture
Dave Babb@dave_babb11 Jul 2023
Do you post a pre-print? I don't know. Will twitter still exist in a few months? Seems doubtful. With that in mind, here is a pre-print of our latest paper on the stepwise reduction of multiyear sea ice area in the Arctic Ocean from 1980-2021. doi.org/10.22541/essoar.1688…
Image from Dave Babb (@dave_babb)
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📢 Polar scientists call for urgent action in view of rapid Arctic and Antarctic change 📢 ▶️ Read the full call to action here: scar.org/scar-news/aspect-ne… @ASPeCt_seaice @CliC_WCRP @WCRP_climate @WMO
Image from Scientific Committee on Antarctic Research (SCAR) (@SCAR_Tweets)
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Replying to @jclandy @ERC_Research @CIRFA_SFI
Don't forget to mention to your non-nynorsk speaking followers that there's an English-speaking podcast episode included!
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🌬️❄️ NEW 🌬️❄️ Wind redistribution of snow impacts the Ka- and Ku-band radar signatures of Arctic sea ice. @CMOS_Winnipeg @AWI_Media @CPOM_news & more 👇 🔗tc.copernicus.org/articles/1…
Snow ripples. Image by MargD from Pixabay

ALT Snow ripples. Image by MargD from Pixabay

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Our preprint on Arctic #CRYO2ICE freeboards and derived snow depth from near-coincident dual-frequency altimetry is out! - and just in time for #igsseaice2023 🧊❄️🛰️ have a look and feel free to contact me to discuss further or if you have any comments!
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We have an open Postdoctoral Researcher position (3 years and 4 months) in Remote Sensing of the Polar Regions @CIRFA_SFI. This position has an open remit, so we are asking for candidates to propose an exciting project working with our research group! jobbnorge.no/en/available-jo…
Photo Wenkai Guo

ALT Photo Wenkai Guo

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