Publication Abstracts

Nusbaumer et al. 2019

Nusbaumer, J., P.M. Alexander, A.N. LeGrande, and M. Tedesco, 2019: Spatial shift of Greenland moisture sources related to enhanced Arctic warming. Geophys. Res. Lett., 46, no. 24, 14723-14731, doi:10.1029/2019GL084633.

Understanding the atmospheric moisture budget of Greenland is critical for predicting future Greenland climate. However, past attempts to quantify the provenance of Greenland precipitation have been limited to certain seasons. Here we present an analysis of Greenland moisture sources using water tracers in the GISS climate model, which can provide source estimates for all time periods. The North Atlantic is found to be the dominant moisture source, except during summer when continental sources increase substantially. The variability is also found to be partially correlated with the Greenland Blocking Index. The key finding, however, is a long-term trend in the moisture source location for Northwest Greenland, with an increase in more locally-sourced moisture over time during non-summer months. This is at least partially related to sea ice loss in the Baffin Bay region, along with a larger increase in sea surface temperatures for the region relative to other locales.

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BibTeX Citation

  author={Nusbaumer, J. and Alexander, P. M. and LeGrande, A. N. and Tedesco, M.},
  title={Spatial shift of Greenland moisture sources related to enhanced Arctic warming},
  journal={Geophys. Res. Lett.},

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RIS Citation

ID  - nu04000e
AU  - Nusbaumer, J.
AU  - Alexander, P. M.
AU  - LeGrande, A. N.
AU  - Tedesco, M.
PY  - 2019
TI  - Spatial shift of Greenland moisture sources related to enhanced Arctic warming
JA  - Geophys. Res. Lett.
VL  - 46
IS  - 24
SP  - 14723
EP  - 14731
DO  - 10.1029/2019GL084633
ER  -

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