[Arcsix] [EXTERNAL] Alek Petty's talk

[Matteo Ottaviani]

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Hi All,

sorry for this late notice...at 2pm ET (20 minutes from now), the Cryosphere group at GISS will be hosting a talk on ICE-SAT2 by Alek Petty, who's part of our ARCSIX team. Details below in case you're interested and you have time.

Best Regards,
Matteo


Hi all,

We will have the next Cryosphere meeting this Thursday, 2pm (4th May), with a presentation from Alek Petty, a polar climate scientist at the Earth System Science Interdisciplinary Center (ESSIC) at the University of Maryland (alekpetty.com<https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Falekpetty.com%2F&data=05%7C01%7CArcsix%40espo.nasa.gov%7C8de0e7b5449e4a854bd208db4cc7357f%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638188190708400877%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=7VXTrUOK%2FRFuTUxfsQeQvlCJncgHcsj1gxUSM1b63dc%3D&reserved=0>).

Alek will join us virtually. The meeting will be hybrid in the 7th floor Sellers Space and on https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcolumbiauniversity.zoom.us%2Fj%2F9103087083&data=05%7C01%7CArcsix%40espo.nasa.gov%7C8de0e7b5449e4a854bd208db4cc7357f%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638188190708400877%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=Tz1LS3jGyYo28H8kPIySg0Z114yulClQgoAR3KFkzGE%3D&reserved=0

His talk and abstract are below.

See you then!
Lettie


High-resolution sea ice profiling with NASA’s ICESat-2: recent product updates and data assimilation activities

NASA’s ICESat-2 laser altimetry mission is revolutionizing our understanding of the polar regions including its fast-changing sea ice cover. ICESat-2, launched in late 2018, has been specially designed for advanced sea ice profiling due its combination of high resolution (<20 m), high precision (< 2 cm over flat surfaces) and dense (10 kHz, overlapping shots) along-track sampling across a novel three-beam pair configuration. ICESat-2 also benefits from dense polar coverage (profiling up to 88 degrees N/S) and has collected year-round data with minimal downtime since production started in October 2018.



In this talk I present an overview of recent developments in profiling sea ice (and polar ocean) state variables from ICESat-2, on-going efforts to validate these data and reconcile them with estimates produced from other satellites (e.g., ESA’s CryoSat-2) and new initiatives to explore the assimilation of these data into state-of-the-art sea ice models.


--
Lettie Roach, PhD (she/her)
lettie-roach.github.io<https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Flettie-roach.github.io%2F&data=05%7C01%7CArcsix%40espo.nasa.gov%7C8de0e7b5449e4a854bd208db4cc7357f%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638188190708400877%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=OewFG%2BpaEtNmb8JPgiOc8vaqJ%2F5qIshXXYABBT9MuWw%3D&reserved=0>
Associate Research Scientist
NASA Goddard Institute for Space Studies
Center for Climate Systems Research
Columbia University in the City of New York

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