PROTECT paper#20 is now published!

The article “Quantifying Rainfall in Greenland: A Combined Observational and Modeling Approach” was published in the Journal of Applied Meteorology and Climatology.

Here are the main results:

  • A comprehensive understanding of precipitation rate and phase in Greenland is not only relevant to understand the current climatology, but also the future mass balance of the GrIS. This paper estimates rainfall totals at 17 Greenland meteorological stations, subjecting data from in-situ precipitation gauge measurements to seven different precipitation phase schemes to separate rain- and snowfall amounts, and then compared with the regional climate model RACMO2.3. 
Aputiteeq monthly time series for RACMO2.3p2 and average corrected AWS results with seven precipitation identification schemes of precipitation phase (Figure from the paper)
  • With observations rainfall fraction ranging from 5% to 57% for cumulative totals, rainfall accounts for aconsiderable fraction of total annual precipitation over Greenland’s coastal regions, with the highest rain fraction in the south (Narsarsuaq).
Observed rainfall fraction based on all cumulative monthly totals (Figure from the paper)
  • With a horizontal resolution of 5.5 km and simulation period from 1958-present, RACMO2.3 therefore is a useful tool to study spatial and temporal variability of rainfall in Greenland, although further statistical downscaling may be required to resolve the steep rainfall gradients.
RACMO2.3p2 modelled rainfall fraction (%) and annual total precipitation, rainfall based on 1958-2018 (Figure from the paper)

Be the first to comment

Leave a Reply

Your email address will not be published.