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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Check out our new paper, if you fancy 🙂 “A year-round satellite sea-ice thickness record from CryoSat-2” @UiTNorgesarktis @Bristol_Glac @GeogBristol @ES_UCL @CPOM_news @ECCCSciTech @AWI_Media @CeosUofm @um_research @NOCnews @esa_cryosat @esaclimate nature.com/articles/s41586-0…
Jack Landy retweeted
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…
We investigate some of the reasons why snow and sea ice freeboards measured by three different satellite missions match or don't in the Arctic... Takeaways: surface roughness and the seasonal variation of snow and ice properties really matter!
Some model simulations of CRISTAL Ku- and Ka-band waveforms in the expected DD-SAR sea ice mode highlight geographic variations in the mean fraction of the snow depth "penetrated" by the twin radars
We're lucky to have received support from several grants to complete this work, mainly the @ESA_EO @esa_cryosat Polar+ Snow on Sea Ice Project. Please share your comments on the paper! @carmenjulianab @isolde_glis @RobbieMallett @rmfredensborg @micheltsamados
Take a look at our new preprint in @EGU_TC Anticipating CRISTAL: An exploration of multi-frequency satellite altimeter snow depth estimates over Arctic sea ice, 2018–2023 egusphere.copernicus.org/pre… @CIRFA_SFI @UiTNorgesarktis @Bristol_Glac @CPOM_news @DTUcryo @esa_cryosat @NASA_ICE
Jack Landy retweeted
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:
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…
Jack Landy retweeted
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
Great work from Claude preparing and defending his thesis on a really challenging but important topic! Check out his paper on sources of ku-band radar backscatter over snow covered sea ice ieeexplore.ieee.org/abstract…
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Jack Landy retweeted
☀️🧊 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…
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)
Awesome thread from @rmfredensborg summarising our new cryo2ice paper 🙌 @CIRFA_SFI
❗️❗️❗️Are you as excited about the upcoming #ESA #CRISTAL mission and estimating snow depth from dual-frequency altimetry along the orbits as us? We've evaluated this possiblity - albeit from laser and radar - from Arctic #CRYO2ICE orbits for 2020-2022! ➡️agupubs.onlinelibrary.wiley.…
Jack Landy retweeted
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…
Very cool! Great to see this summer sea ice thickness dataset from @esa_cryosat having an impact on Arctic forecasting! @CIRFA_SFI @UiTNorgesarktis
📉 #Arctic sea ice is declining due to #GlobalWarming
🔮 Accurate forecasting of sea ice is important to understand impact of changes
🆕 A new preprint uses #CryoSat summer sea ice data to reduce short term forecast error & benefit long-term forecasts
👉essopenarchive.org/doi/full/…
ALT Frozen sea. Photo by SAUMIK SAMANTA: https://www.pexels.com/photo/photo-of-a-frozen-sea-14341194/
Anne Braakmann-Folgmann @UiTNorgesarktis and @DavidBrockley & Lin Gilbert at @MSSLSpaceLab have been working hard to prepare for a NEAR REAL TIME @esa_cryosat summer sea ice freeboard dataset to support such forecasting applications 🧊🛰 Out this summer!!
Just published! Smashing work Yong-Fei @Princeton doi.org/10.1029/2023GL105672
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Jack Landy retweeted
💚 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! 👇
Jack Landy retweeted
🤩 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 🤩
Jack Landy retweeted
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…
👏👏👏 Well done to Dr Glissenaar who rocked her phd defence yesterday! If you want to know anything about satellite observations of sea ice change in the Canadian Arctic 👉 talk to Isolde!
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Jack Landy retweeted
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