Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.524 IF 4.524
  • IF 5-year value: 5.558 IF 5-year
    5.558
  • CiteScore value: 4.84 CiteScore
    4.84
  • SNIP value: 1.425 SNIP 1.425
  • SJR value: 3.034 SJR 3.034
  • IPP value: 4.65 IPP 4.65
  • h5-index value: 52 h5-index 52
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 55 Scimago H
    index 55
Discussion papers
https://doi.org/10.5194/tc-2019-16
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-2019-16
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 25 Feb 2019

Research article | 25 Feb 2019

Review status
This discussion paper is a preprint. A revision of the manuscript for further review has not been submitted.

Estimate of Greenland and Antarctic ice-sheet total discharge from multiple GRACE solutions

Ida Russo1, Guillaume Ramillien2, Frédéric Frappart2, and Frédérique Rémy2 Ida Russo et al.
  • 1Centro Euro-Mediterraneo per i Cambiamenti Climatici, Bologna, Italy
  • 2LEGOS, Observatoire Midi-Pyrénées, Toulouse, France

Abstract. In this work a method for the estimation of 2003–2010 monthly-mean total discharge from Greenland and Antarctica is presented. We show that measurements of time-variable gravity from GRACE when combined with estimates of precipitation and sublimation can realistically reconstruct the total discharge from the ice-sheets into the ocean. In particular, the total discharge has been calculated as a 8-member ensemble-mean obtained by combining multiple GRACE solutions with water fluxes from both an high resolution regional atmospheric climate model (RACMO2) and a global reanalysis (ERA-Interim). The gravimetric measurements of mass variations and the precipitation and sublimation atmospheric fields have been combined in the ice-sheets water mass balance equation, according to the main drainage basin systems. The use of the combined land-atmosphere water mass balance has also been tested, which however led to a large underestimation of total discharge. A comparison among the different GRACE solutions is also performed, highlighting similarities and differences and analyzing the possible causes. GRACE datasets show similar ice-sheet mass trends on Antarctica and over the majority of the Greenland basins, while significant differences (up to a factor of 1.9) have been found in mass-loss areas characterized by strongly negative water height trends. This is likely primarily caused by the different pre-processing techniques applied to the raw gravimetric data.

Ida Russo et al.
Interactive discussion
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Interactive discussion
Status: closed (peer review stopped)
Status: closed (peer review stopped)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Ida Russo et al.
Ida Russo et al.
Viewed  
Total article views: 386 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
279 106 1 386 0 3
  • HTML: 279
  • PDF: 106
  • XML: 1
  • Total: 386
  • BibTeX: 0
  • EndNote: 3
Views and downloads (calculated since 25 Feb 2019)
Cumulative views and downloads (calculated since 25 Feb 2019)
Viewed (geographical distribution)  
Total article views: 120 (including HTML, PDF, and XML) Thereof 119 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 22 May 2019
Publications Copernicus
Download
Citation