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Altimetry Data Fusion
A Greatly Improved 25-year Record of Ice Shelf Elevation at High Temporal and Spatial Resolution
Satellites: ERS-1 + ERS-2 + Envisat + CryoSat-2 (+ ICESat + ICESat-2 coming)
Time span: 1992-present (26+ years)
Temporal resolution: 3 months
Spatial resolution: 3-5 km
Grid posting: 1 km
Goal:: Invert for high-resolution ice-shelf melt time series
Authors: Paolo, Nilsson, Gardner (JPL).
NASA MEaSUREs Inter-mission Time Series of Land Ice Velocity and Elevation (ITS_LIVE)
We will accelerate ice sheet and glacier change research by producing a globally-comprehensive and temporally dense multi-sensor record of land ice and ice shelf velocity and elevation, updated in near-real time as new data become available. Such a record is not presently available to the community, slowing scientific discovery from these information-rich data streams.
PI: Gardner (JPL), Co-I’s: Agram, Hua, Linick, Nilsson, Paolo, Walker (JPL), Scambos (U.Colorado), Fahnestock, Meyer (U.Alaska), $4.2M, 2018–2023.
JPL Cryosphere Altimetry Processing Toolkit (a Python Library)
Set of tools for processing and integrating satellite and airborne altimetry data.
- Johan Nilsson (firstname.lastname@example.org) - Core developer
- Fernando Paolo (email@example.com) - Lead developer
- Alex Gardner (firstname.lastname@example.org) - Project PI
NASA’s Ice, Cloud and Elevation Satellite 2 Mission.
ICESat and CryoSat-2
Multi-sensor analyses of Antarctic ice shelf response to climate variability
Primary project goals: Develop a detailed history of Antarctic ice-shelf mass and stress changes on seasonal-to-interannual time scales and small spatial scales; improve our understanding of the environmental processes that cause these changes; and assess whether proxies for variability of the ice-shelf mass budget can be obtained from coarse-grid global climate models (GCMs). Our main data sources for this study are: ICESat laser altimeter data (2003-2009); Operation IceBridge (OIB) airborne laser altimeter and radio echo sounding (RES) ice thickness data (2009-present); CryoSat-2 radar altimeter (RA) data (2010-present); and European Space Agency (ESA) RA satellites ERS-1, ERS-2 and Envisat (1992-2012).
PI: Padman (ESR), Co-I: Fricker (Scripps), $637k, 2013–2016, and $385k, 2017–2019.