📢 New publication! Ahead of #ESA #CRISTAL, we explore dual-frequency #altimetry for estimating 🧊 snow depth over sea ice.
🛩️ Part 1: Airborne multi-freq altimetry → snow depth 👉 tc.copernicus.org/articles/19/...
🛰️ Part 2: Compare w/ CryoSat-2 & ICESat-2 #CRYO2ICE 👉 tc.copernicus.org/articles/19/...
🛩️ Part 1: Airborne multi-freq altimetry → snow depth 👉 tc.copernicus.org/articles/19/...
🛰️ Part 2: Compare w/ CryoSat-2 & ICESat-2 #CRYO2ICE 👉 tc.copernicus.org/articles/19/...
Multi-frequency altimetry snow depth estimates over heterogeneous snow-covered Antarctic summer sea ice – Part 1: C∕S-, Ku-, and Ka-band airborne observations
Abstract. The recent alignment of CryoSat-2 to maximise orbital coincidence with the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) over the Southern Ocean and Antarctica in July 2022, known as...
tc.copernicus.org
October 20, 2025 at 8:37 AM
📢 New publication! Ahead of #ESA #CRISTAL, we explore dual-frequency #altimetry for estimating 🧊 snow depth over sea ice.
🛩️ Part 1: Airborne multi-freq altimetry → snow depth 👉 tc.copernicus.org/articles/19/...
🛰️ Part 2: Compare w/ CryoSat-2 & ICESat-2 #CRYO2ICE 👉 tc.copernicus.org/articles/19/...
🛩️ Part 1: Airborne multi-freq altimetry → snow depth 👉 tc.copernicus.org/articles/19/...
🛰️ Part 2: Compare w/ CryoSat-2 & ICESat-2 #CRYO2ICE 👉 tc.copernicus.org/articles/19/...
Fabulous talk by @BryonyFreer at #Cryo2ice about the drainage of Engelhardt Subglacial Lake and changes in the nearby grounding zone from @NASAEarth’s ICESat-2 @esa_cryosat and @DLR_SpaceAgency’s TerraSAR-X
February 3, 2025 at 3:56 PM
Fabulous talk by @BryonyFreer at #Cryo2ice about the drainage of Engelhardt Subglacial Lake and changes in the nearby grounding zone from @NASAEarth’s ICESat-2 @esa_cryosat and @DLR_SpaceAgency’s TerraSAR-X
Story of a slow demise of an Antarctic ice shelf: @CapComCatWalk at #cryo2ice in Iceland shows what happened to Conger-Glenzer Ice Shelf which used to be the eastern part of Shackleton Ice Shelf, East Antarctica — coming soon in @NatureGeosci
February 3, 2025 at 3:56 PM
Story of a slow demise of an Antarctic ice shelf: @CapComCatWalk at #cryo2ice in Iceland shows what happened to Conger-Glenzer Ice Shelf which used to be the eastern part of Shackleton Ice Shelf, East Antarctica — coming soon in @NatureGeosci
#Cryo2Ice brings ESA’s CryoSat-2 into a synced orbit w/ NASA’s ICESat-2. They see different things. It’s huge and the science this enables is 🤩🤯.
But… is it okay to have a ❤️-to-💜 chat about diversity in the high echelons of polar science? Or is this still “not a good time?”
But… is it okay to have a ❤️-to-💜 chat about diversity in the high echelons of polar science? Or is this still “not a good time?”
September 15, 2020 at 1:39 PM
#Cryo2Ice brings ESA’s CryoSat-2 into a synced orbit w/ NASA’s ICESat-2. They see different things. It’s huge and the science this enables is 🤩🤯.
But… is it okay to have a ❤️-to-💜 chat about diversity in the high echelons of polar science? Or is this still “not a good time?”
But… is it okay to have a ❤️-to-💜 chat about diversity in the high echelons of polar science? Or is this still “not a good time?”
Final wrap-up session of #cryo2ice in Reykjavik. What an amazing meeting this has been bringing together the CryoSat-2 and ICESat-2 communities at an in-between location. Thankyou to @esa @esa_cryosat and @NASAEarth for a wonderful week!
February 3, 2025 at 3:57 PM
Final wrap-up session of #cryo2ice in Reykjavik. What an amazing meeting this has been bringing together the CryoSat-2 and ICESat-2 communities at an in-between location. Thankyou to @esa @esa_cryosat and @NASAEarth for a wonderful week!
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/19/...
tc.copernicus.org/articles/19/...
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- a...
tc.copernicus.org
January 30, 2025 at 1:23 AM
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/19/...
tc.copernicus.org/articles/19/...
This week in "ideas I thought were new but actually aren't".
In the final sentence of her 2005 PhD thesis, Katherine Giles stressed that it would be really neat to steer ICESat onto a CryoSat ground track.
It took 15 years and a second iteration of both missions for Cryo2Ice to happen!
In the final sentence of her 2005 PhD thesis, Katherine Giles stressed that it would be really neat to steer ICESat onto a CryoSat ground track.
It took 15 years and a second iteration of both missions for Cryo2Ice to happen!
February 7, 2025 at 10:29 AM
This week in "ideas I thought were new but actually aren't".
In the final sentence of her 2005 PhD thesis, Katherine Giles stressed that it would be really neat to steer ICESat onto a CryoSat ground track.
It took 15 years and a second iteration of both missions for Cryo2Ice to happen!
In the final sentence of her 2005 PhD thesis, Katherine Giles stressed that it would be really neat to steer ICESat onto a CryoSat ground track.
It took 15 years and a second iteration of both missions for Cryo2Ice to happen!
9/ You can learn more about the #Cryo2Ice Campaign which realigned #ESA 's #Cryosat2 to have better coincidence to #NASA's #ICESat2 which made this study possible: t.co/F4jKH64ooa
https://earth.esa.int/eogateway/missions/cryosat/cryo2ice
t.co
January 30, 2025 at 1:23 AM
Really exciting to hear about @esa’s upcoming CRISTAL mission from all the speakers this morning at #cryo2ice. This is a Ku/Ka band satellite radar altimeter in a near-polar orbit (from 88• north and to 88• south).
February 3, 2025 at 3:57 PM
Really exciting to hear about @esa’s upcoming CRISTAL mission from all the speakers this morning at #cryo2ice. This is a Ku/Ka band satellite radar altimeter in a near-polar orbit (from 88• north and to 88• south).
Still going strong here at #cryo2ice in Iceland with @dr_slfarrell showing the shape, structure & seasonal cycle of Arctic sea ice ridges from @NASAEarth’s ICESat-2. Tracking sea ice properties with satellite altimetry is challenging but this team has it all figured out!
February 3, 2025 at 3:57 PM
Still going strong here at #cryo2ice in Iceland with @dr_slfarrell showing the shape, structure & seasonal cycle of Arctic sea ice ridges from @NASAEarth’s ICESat-2. Tracking sea ice properties with satellite altimetry is challenging but this team has it all figured out!
Next up at #cryo2ice our own Ben Smith from @UW showing how @esa_cryosat + @NASAEarth’s ICESat-2 + SAR velocities + @polargeospatial @WorldViewSpace imagery can be used for tracking ice changes at the margins of West Antarctica
February 3, 2025 at 3:57 PM
Next up at #cryo2ice our own Ben Smith from @UW showing how @esa_cryosat + @NASAEarth’s ICESat-2 + SAR velocities + @polargeospatial @WorldViewSpace imagery can be used for tracking ice changes at the margins of West Antarctica
Status: this preprint is open for discussion
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow Depth Estimation on Lead-less Landfast ice using Cryo2Ice satellite observations, EGUsphere [preprint], doi.org/10.5194/egus..., 2023.
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow Depth Estimation on Lead-less Landfast ice using Cryo2Ice satellite observations, EGUsphere [preprint], doi.org/10.5194/egus..., 2023.
Snow Depth Estimation on Lead-less Landfast ice using Cryo2Ice satellite observations
Abstract. Observations of snow on Arctic sea ice are vitally important for sea ice thickness estimation as well as for understanding bio-physical processes and human-activities. This study is the firs...
doi.org
November 15, 2023 at 10:39 AM
Status: this preprint is open for discussion
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow Depth Estimation on Lead-less Landfast ice using Cryo2Ice satellite observations, EGUsphere [preprint], doi.org/10.5194/egus..., 2023.
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow Depth Estimation on Lead-less Landfast ice using Cryo2Ice satellite observations, EGUsphere [preprint], doi.org/10.5194/egus..., 2023.
4/ 🌊 We validated our results using in situ measurements near Cambridge Bay, Nunavut. On average, Cryo2Ice snow depths underestimated in situ values by 2 to 4 cm, but the snow depth distributions match well between Cryo2ice and in-situ.
January 30, 2025 at 1:23 AM
4/ 🌊 We validated our results using in situ measurements near Cambridge Bay, Nunavut. On average, Cryo2Ice snow depths underestimated in situ values by 2 to 4 cm, but the snow depth distributions match well between Cryo2ice and in-situ.
3/ 🔍 Our study is the first to assess snow depth retrieval using #Cryo2Ice data in a leadless region. Without leads to estimate sea surface height, we developed a method using ellipsoidal height differences between the satellites and accounting for tides.
January 30, 2025 at 1:23 AM
3/ 🔍 Our study is the first to assess snow depth retrieval using #Cryo2Ice data in a leadless region. Without leads to estimate sea surface height, we developed a method using ellipsoidal height differences between the satellites and accounting for tides.
Last week I had the opportunity to present our latest research to the ice altimetry community at the #CRYO2ICE symposium. I talked about AWI-ICENet1, our new AI-based retracking algorithm for ice altimetry (doi.org/10.5194/tc-1...). I took home fantastic feedback and a lot to think about.
September 30, 2024 at 10:36 AM
Last week I had the opportunity to present our latest research to the ice altimetry community at the #CRYO2ICE symposium. I talked about AWI-ICENet1, our new AI-based retracking algorithm for ice altimetry (doi.org/10.5194/tc-1...). I took home fantastic feedback and a lot to think about.
Published today in The Cryosphere
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations, The Cryosphere, 19, 325–346, doi.org/10.5194/tc-1..., 2025.
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations, The Cryosphere, 19, 325–346, doi.org/10.5194/tc-1..., 2025.
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- a...
doi.org
January 27, 2025 at 8:34 AM
Published today in The Cryosphere
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations, The Cryosphere, 19, 325–346, doi.org/10.5194/tc-1..., 2025.
Saha, M., Stroeve, J., Isleifson, D., Yackel, J., Nandan, V., Landy, J. C., and Lam, H. M.: Snow depth estimation on leadless landfast ice using Cryo2Ice satellite observations, The Cryosphere, 19, 325–346, doi.org/10.5194/tc-1..., 2025.
Satellite altimetry as a way to directly measure the height of Earth’s surface from space started in the 1970s, and has evolved through distinct eras. At Cryo2ice I highlighted what these data have taught us about Antarctic mass loss and the driving processes. #ErasTour #Cryo2ice
February 3, 2025 at 3:57 PM
Looking forward to joining #cryo2ice symposium in Reykjavik 🇮🇸 next week @NASA_ICE @esa_cryosat discussing #ICESat2 and #Cryosat2 applications for studying ice shelf and ice sheet dynamics, including tracking hydrology! 🛰 💧 🧊 🇦🇶
March 27, 2025 at 9:34 AM
Looking forward to joining #cryo2ice symposium in Reykjavik 🇮🇸 next week @NASA_ICE @esa_cryosat discussing #ICESat2 and #Cryosat2 applications for studying ice shelf and ice sheet dynamics, including tracking hydrology! 🛰 💧 🧊 🇦🇶