Kappelsberger, Maria T; Helm, Veit; Nilsson, Johan; Horwath, Martin; Gardner, Alex S: Satellite altimetry results over Lake Vostok, central East Antarctica, from CryoSat-2 (Nov 2010 - Feb 2024) and ICESat-2 (Apr 2019 - Apr 2024) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973958 (dataset in review)
Abstract:
This dataset contains satellite altimetry results over Lake Vostok, central East Antarctica, at two different processing stages: (1) surface elevation measurements along the satellite track and (2) monthly gridded surface elevation changes. Results from the CryoSat-2 satellite radar altimetry mission from November 2010 to February 2024 are provided at both processing stages and for the two waveform retrackers AWI-ICENet1 (based on a deep convolutional neural network architecture) and OCOG10 (10% of the offset center of gravity (OCOG) amplitude). The generation of the stage (2) gridded data from the stage (1) OCOG10-retracked measurements involve an empirical correction for the effect of time-variable surface and volume scattering. Hence, the resulting stage (2) dataset is labeled OCOG10-cor. For this empirical correction, we apply a tailored scattering correction using epoch differences over time intervals of 6 years and search radii of 5 km. The results from the ICESat-2 satellite laser altimetry mission from April 2019 to April 2024 are provided only at the processing stage (2). As input to our processing, we use the CryoSat-2 Level-1B waveform product Baseline E provided by ESA and the ICESat-2 ATL06.006 land ice height product (version 6) provided by NASA National Snow and Ice Data Center.
Keyword(s):
Supplement to:
Kappelsberger, Maria T; Nilsson, Johan; Horwath, Martin; Gardner, Alex S; Helm, Veit (submitted): A recent increase in ice-surface elevation over Lake Vostok, central East Antarctica, observed by ICESat-2 and CryoSat-2. Remote Sensing of Environment
Related to:
Helm, Veit; Dehghanpour, Alireza; Hänsch, Ronny; Loebel, Erik; Horwath, Martin; Humbert, Angelika (2024): AWI-ICENet1: a convolutional neural network retracker for ice altimetry. The Cryosphere, 18(9), 3933-3970, https://doi.org/10.5194/tc-18-3933-2024
Nilsson, Johan; Gardner, Alex S; Paolo, Fernando S (2022): Elevation change of the Antarctic Ice Sheet: 1985 to 2020. Earth System Science Data, 14(8), 3573-3598, https://doi.org/10.5194/essd-14-3573-2022
Schröder, Ludwig; Horwath, Martin; Dietrich, Reinhard; Helm, Veit; van den Broeke, Michiel R; Ligtenberg, Stefan R M (2019): Four decades of Antarctic surface elevation changes from multi-mission satellite altimetry. The Cryosphere, 13(2), 427-449, https://doi.org/10.5194/tc-13-427-2019
Further details:
Kappelsberger, Maria T; Helm, Veit; Nilsson, Johan; Horwath, Martin; Gardner, Alex S: Quicklooks of satellite altimetry results over Lake Vostok, central East Antarctica, from CryoSat-2 (Nov 2010 - Feb 2024) and ICESat-2 (Apr 2019 - Apr 2024) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973961
Funding:
German Research Foundation (DFG), grant/award no. 442929109: Advancing ice altimetry analysis to constrain the Antarctic Ice Sheet's response to climate change
Coverage:
Median Latitude: -77.386850 * Median Longitude: 105.440500 * South-bound Latitude: -79.288500 * West-bound Longitude: 99.340000 * North-bound Latitude: -75.485200 * East-bound Longitude: 111.541000
Date/Time Start: 2010-11-01T00:00:00 * Date/Time End: 2024-04-30T00:00:00
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Kappelsberger, Maria T | Geocode – start | ||
| 2 | DATE/TIME | Date/Time | Kappelsberger, Maria T | Geocode – end | ||
| 3 | File content | Content | Kappelsberger, Maria T | |||
| 4 | netCDF file | netCDF | Kappelsberger, Maria T | |||
| 5 | netCDF file (File Size) | netCDF (Size) | Bytes | Kappelsberger, Maria T |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
6 data points