Mass and volume time series of Antarctic drainage systems derived by a coupled state space analysis of satellite observations and model products

DOI

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).

Identifier
DOI https://doi.org/10.1594/PANGAEA.930250
Related Identifier https://doi.org/10.1029/2020JF005966
Related Identifier https://doi.org/10.1594/PANGAEA.897390
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.930250
Provenance
Creator Willen, Matthias O ORCID logo; Broerse, Taco ORCID logo; Groh, Andreas ORCID logo; Wouters, Bert ORCID logo; Kuipers Munneke, Peter; Horwath, Martin (ORCID: 0000-0001-5797-244X); van den Broeke, Michiel R ORCID logo; Schröder, Ludwig ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 273739224 https://gepris.dfg.de/gepris/projekt/273739224 Priority Programme 1889 Regional Sea Level Change and Society
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 17 data points
Discipline Earth System Research
Spatial Coverage (-158.650W, -81.845S, 159.179E, -65.764N); Antarctica
Temporal Coverage Begin 2002-04-01T00:00:00Z
Temporal Coverage End 2016-08-31T00:00:00Z