Journal metrics

Journal metrics

  • IF value: 4.252 IF 4.252
  • IF 5-year value: 4.890 IF 5-year 4.890
  • CiteScore value: 4.49 CiteScore 4.49
  • SNIP value: 1.539 SNIP 1.539
  • SJR value: 2.404 SJR 2.404
  • IPP value: 4.28 IPP 4.28
  • h5-index value: 40 h5-index 40
  • Scimago H index value: 51 Scimago H index 51
Discussion papers | Copyright
https://doi.org/10.5194/gmd-2018-131
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 18 Jun 2018

Development and technical paper | 18 Jun 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

A Hydrological Cycle Model for the Globally Resolved Energy Balance Model (GREB) v1.0

Christian Stassen1, Dietmar Dommenget1, and Nicholas Loveday2 Christian Stassen et al.
  • 1School of Earth Atmosphere and Environment, ARC Centre of Excellence for Climate System Science, Monash University, Melbourne, Australia
  • 2Bureau of Meteorology, Darwin, Northern Territory, Australia

Abstract. In this study, we describe the development of the hydrological cycle for the Globally Resolved Energy Balance (GREB) model. Starting from a very simple zero order hydrological cycle model included in the GREB model, we develop three new models: precipitation, evaporation and horizontal transport of water vapour. Precipitation is modelled based on the actual simulated specific and relative humidity in GREB and the prescribed boundary condition of vertical velocity. The evaporation bulk formula is slightly refined by considering differences in the sensitivity to winds between land and oceans, and by improving the estimates of the wind magnitudes. Horizontal transport of water vapour is improved by approximating moisture convergence by vertical velocity. The new parameterisations are fitted against observations (GPCP) and reanalysis data sets (ERA-Interim). The new hydrological cycle is evaluated against CMIP model simulation, reduction in correction terms and by three different sensitivity experiments (Annual Cycle, El Nino Southern Oscillation and Climate Change). The skill of the hydrological cycle in the GREB model is now within the range of more complex CMIP5 CGCMs and capable of simulating key features of the climate system within the range of uncertainty of CMIP5 model simulations. The results illustrate that the new GREB model’s hydrological cycle is a useful model to study the climate’s hydrological response to external forcings and also to study inter-model differences or biases.

Download & links
Christian Stassen et al.
Interactive discussion
Status: open (until 13 Aug 2018)
Status: open (until 13 Aug 2018)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Christian Stassen et al.
Christian Stassen et al.
Viewed
Total article views: 187 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
147 35 5 187 4 5
  • HTML: 147
  • PDF: 35
  • XML: 5
  • Total: 187
  • BibTeX: 4
  • EndNote: 5
Views and downloads (calculated since 18 Jun 2018)
Cumulative views and downloads (calculated since 18 Jun 2018)
Viewed (geographical distribution)
Total article views: 187 (including HTML, PDF, and XML) Thereof 187 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited
Saved
No saved metrics found.
Discussed
No discussed metrics found.
Latest update: 15 Jul 2018
Publications Copernicus
Download
Short summary
In this research article we describe the development of a new model for the water-cycle for the simple Globally Resolved Energy Balance model called GREB. Before this work the water-cycle in GREB was merely a dummy. We compare our simple model against more complex models and find a similar skill. The results illustrate that the new GREB model's water-cycle is a useful tool to study the changes of the water-cycle to external forcings like El Nino or climate change.
In this research article we describe the development of a new model for the water-cycle for the...
Citation
Share