Simulations with earth system model EC-Earth
Title: Simulations with earth system model EC-Earth
DNr: SNIC 2015/1-474
Project Type: SNIC Medium Compute
Principal Investigator: Qiong Zhang <qiong.zhang@natgeo.su.se>
Affiliation: Stockholms universitet
Duration: 2016-01-01 – 2017-01-01
Classification: 10501 10508 10509
Homepage: http://www.bolin.su.se/
Keywords:

Abstract

During 2015 we have completed all the PMIP exercises with EC-Earth 3.1. These simulations include the mid-Holocene simulation, and a series of green Sahara sensitivity experiments during this period. We also done standard PMIP experiment for Last Glacial Maximum with several ice-sheet reconstructions. A transient simulation for last millennium for 850-1850 also has been completed recently. We highly appreciate the computer resource from NSC provide us a productive year on climate model simulations. All our model results are available to the research community to use and we advertise the simulations in meetings and workshops. By doing this we have established several national and Nordic collaborations on climate modelling and been involved in climate relevant proposal applications. We foresee more modelling demands in coming year with such collaboration development. In 2015 we will focus on the testing all the setups with ESM version of EC-Earth for paleo simulations. The new implemented component LPJ-GUESS and carbon cycle are particularly important for paleo experiments, though higher demands on computer resources will be needed. We will perform these simulations by sharing among several relevant projects. As described in last year’s proposal, we also have several grants that require modelling effort. In a new VR grant “Greenland in a warming climate” (2015-2017) we have planned to improve the snow parameterisation and surface process of ice-sheet in EC-Earth, in order to understand the interaction between the Greenland ice-sheet and Arctic climate. These works are still ongoing. We also run CAM-iso for past and present day climate in our SNSB (Swedish National Space Board) project “Atmospheric modelling using space-based observations of stable water isotopes (2013-2016)”. A climate sensitivity study with ensemble simulations by changing CO2 level and ice-sheet is initiated within Bolin centre recently, and expect to be performed in first three months in 2016.