Willen, Matthias O; Broerse, Taco; Groh, Andreas; Wouters, Bert; Kuipers Munneke, Peter; Horwath, Martin; van den Broeke, Michiel R; Schröder, Ludwig (2021): Mass and volume time series of Antarctic drainage systems derived by a coupled state space analysis of satellite observations and model products [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.930250
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Abstract:
We investigated time series of 17 Antarctic drainage basins from April 2002 until August 2016 using data from the satellite gravimetry mission GRACE, a multi-mission altimetry product, and products from regional climate and firn modeling. The model products are cumulated surface mass balance anomalies (cSMBA) derived from RACMO2 outputs and firn thickness change predicted by the firn densification model (FDM) IMAU-FDM. We simultaneously evaluated these data sets in a state-space model framework to separate time-variable contributions from ice-dynamics and climatological forcing to mass and volume changes of the drainage systems. We parametrize long-term changes by a trend with a time-variable rate. Further we separate residual cyclic, first-order auto regressive (AR(1)), and irregular short-term variations.
For each drainage basin we provide a file that includes mass and volume time series of the input data sets and the estimated signals along with their uncertainty (single standard deviation). The basin numbers refer to drainage systems defined by Zwally et al. (2012).
Supplement to:
Willen, Matthias O; Broerse, Taco; Groh, Andreas; Wouters, Bert; Kuipers Munneke, Peter; Horwath, Martin; van den Broeke, Michiel R; Schröder, Ludwig (2021): Separating Long‐Term and Short‐Term Mass Changes of Antarctic Ice Drainage Basins: A Coupled State Space Analysis of Satellite Observations and Model Products. Journal of Geophysical Research-Earth Surface, 126(6), e2020JF005966, https://doi.org/10.1029/2020JF005966
Related to:
Schröder, Ludwig; Horwath, Martin; Dietrich, Reinhard; Helm, Veit; van den Broeke, Michiel R; Ligtenberg, Stefan R M (2019): Gridded surface elevation changes from multi-mission satellite altimetry 1978-2017. PANGAEA, https://doi.org/10.1594/PANGAEA.897390
Further details:
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 273739224: Priority Programme 1889 Regional Sea Level Change and Society
Coverage:
Median Latitude: -73.430000 * Median Longitude: 1.827765 * South-bound Latitude: -81.845000 * West-bound Longitude: -158.650000 * North-bound Latitude: -65.764000 * East-bound Longitude: 159.179000
Date/Time Start: 2002-04-01T00:00:00 * Date/Time End: 2016-08-31T00:00:00
Event(s):
Antarctic_basin_4 * Latitude Start: -78.185000 * Longitude Start: -35.417000 * Latitude End: -70.918000 * Longitude End: -0.642000 * Location: Antarctica * Method/Device: Multiple investigations (MULT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Willen, Matthias O | |||
| 2 | DATE/TIME | Date/Time | Willen, Matthias O | Geocode – Start | ||
| 3 | DATE/TIME | Date/Time | Willen, Matthias O | Geocode – End | ||
| 4 | Binary Object | Binary | Willen, Matthias O | |||
| 5 | Binary Object (Media Type) | Binary (Type) | Willen, Matthias O | |||
| 6 | Binary Object (File Size) | Binary (Size) | Bytes | Willen, Matthias O |
Change history:
2022-05-13T10:02:31 – Data files updated (export script correction). The "Alt-FDM" columns contained wrong values in a previous version which is resolved now.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
17 data points