Renée Mie Fredensborg Hansen
@rmfredensborg
Postdoc at @DTUSpace with multi-frequency altimetry observations of sea ice 🛰️🧊❄️ Tweets are my own.
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Just in time for #Cryo2iceSymposium next week! Have a look at our preprint on cracking the snow code from altimetry using multi-frequency airborne observations along a dual-frequency near-coincident @esa_cryosat and @NASA_ICESat2 orbit! Marking also the last study of my PhD! 🛰
Discussion open for comments on @EgUsphere: Exploring microwave penetration into snow on Antarctic summer sea ice along CryoSat-2 and ICESat-2 (CRYO2ICE) orbit from multi-frequency air- and spaceborne altimetry doi.org/10.5194/egusph…
We've investigated the CryoVEx/DEFIANT Antarctic 2022/2023 campaign data for the CRYO2ICE sea ice under-flight on December 13 2022 over the Weddell Sea in our preprint: egusphere.copernicus.org/preprints/2024…. Have a look, and let's discuss!
Airborne data from the ESA CryoVEx/DEFIANT Antarctic campaign of 2022/23 is now available on CS2EO! Time to delve in 👇 ‼️earth.esa.int/eogateway/news…
Discussion open for comments: Dual-hemisphere sea ice thickness reference measurements from multiple data sources for evaluation and product inter-comparison of satellite altimetry doi.org/10.5194/essd-2…
essd.copernicus.org
Dual-hemisphere sea ice thickness reference measurements from multiple data sources for evaluation...
Abstract. Sea ice altimetry currently remains the primary method for estimating sea ice thickness from space, however time-series of sea ice thickness estimates are of limited use without having been...
It was great to see @rmfredensborg present this at #Cryo2ice! New preprint: "Exploring microwave penetration into snow on Antarctic summer sea ice along #CryoSat and ICESat-2 (CRYO2ICE) orbit from multi-frequency air- and spaceborne altimetry" 👉egusphere.copernicus.org/preprints/2024…
Excited for #CRISTAL? So are we! Take a look at our preprint investigating the potential for snow depth estimation from dual-frequency altimetry using current satellite missions, and get a taste of future expectations with simulations based on the design of #IRIS!
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/preprints/2024… @CIRFA_SFI @UiTNorgesarktis @Bristol_Glac @CPOM_news @DTUcryo @esa_cryosat @NASA_ICE
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/preprints/2024… @CIRFA_SFI @UiTNorgesarktis @Bristol_Glac @CPOM_news @DTUcryo @esa_cryosat @NASA_ICE
We join the 27th IAHR Int. Symp. on Ice in Gdánsk, Poland, this week. @rmfredensborg presented sea ice ridge statistics in Barents Sea and Fram Strait from #ICESat-2! 🛰️ Interesting discussions on deformed ice, offshore ice-ocean-structure, applications of remote sensing! ⛴️🧊❄️
@hskourup and @rmfredensborg at ESA-ESRIN for the #St3TART-FO kick-off meeting! Exited to continue on the procedures for establishing fiducial reference measurements (#FRMs) for #Sentinel-3 Altimetry Cryo products 🛰, to support validation of altimetry sea ice variables ❄️🧊
This is just the sort of thing we're looking for at the #Cryo2ice symposium 🤩 "Arctic Freeboard and Snow Depth From Near‐Coincident CryoSat‐2 and ICESat‐2 (CRYO2ICE) Observations: A First Examination of Winter Sea Ice During 2020–2022" 👉agupubs.onlinelibrary.wiley.com/doi/pdf/10.102…
❗️❗️❗️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.com/doi/full/10.10…
Paper celebration day! 📝 We may not be able to share the snacks with you, but we can definitely share our latest papers! Check out the links below if you're looking for some Sunday reading material. Enjoy diving into the research! 📚
As a teaser here is the dream team earlier this week on the ice collected amazing in-situ, drone and airborne data. Photo credit: Thomas Newman (@ES_UCL).
Join me for my CryoSat-2 talk on how we can read in thickness distributions like in a 📔book on the thermodynamic and dynamic history of the ice! 🧊🛰️ ⏲️12:05 in Room 1.61 #ESAatEGU #EGU2024 Preview of the talk in the figure: Mean thickness is not telling us the full story!
We're representing #ESAatEGU this week with a whopping 40+ #CryoSat posters & talks Loads going on RN, from rapid changes in sea ice to hydrology of ice sheets, ice shelves and glaciers 🌊🧊 Check it all out - and say hi to @ESA_EO if you're there ;) 👉earth.esa.int/eogateway/news…
🆕 Big #Cryo2ice news! 🆕 CryoSat and ICESat2 data give us a sneak peak of what to expect from the upcoming CRISTAL mission. Better understanding of snow thickness on ice, one of the biggest sources of uncertainty in ice thickness estimates. ❄️☃️❄️👇
❗️❗️❗️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.com/doi/full/10.10…
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