Researcher for climate and/or surface mass budget modelling of the Polar regions

Are you interested in working with climate models? And motivated by understanding climate change in the Arctic and Antarctic regions? Here is a great opportunit

PolarRES and OCEAN:ICE launch new video series: "Explain it two Two Ways" - PolarRES

We are thrilled to share an exciting collaboration between OCEAN:ICE and PolarRES – the launch […]

Ice and Climate

Experimental video channel dedicated to sharing the latest in glaciology, climate change research and sea level rise. Posted by Ruth Mottram Discussions on @[email protected]

PolarRES (@[email protected])

Attached: 1 image 💡Introducing the Explain it in Two Ways #video series🎥, a collaboration with @OceanIceEU🔗 ✨In the first episode, @Ruth_Mottram demystifies the concept of #surfacemassbalance for both the general and #scientific public📣 Watch the videos on our website👀👇 https://polarres.eu/polarresnews/explain-it-in-two-ways-surface-mass-balance/ #H2020 @[email protected]

PolarRES and OCEAN:ICE launch new video series: "Explain it two Two Ways" - PolarRES

We are thrilled to share an exciting collaboration between OCEAN:ICE and PolarRES – the launch […]

polarportal (@[email protected])

Attached: 4 images Another very high melt day. Interestingly this year's extreme melt is occurring on exactly the same days of the year as one of the highest extreme melt events previously recorded, in 2012. A few comparisons from #Greenland in 2012 and 2023. You can explore more here: http://polarportal.dk/en/greenland/surface-conditions/

Surface Conditions: Polar Portal

What is the surface mass balance of Antarctica? An intercomparison of regional climate model estimates

<p><strong class="journal-contentHeaderColor">Abstract.</strong> We compare the performance of five different regional climate models (RCMs) (COSMO-CLM<span class="inline-formula">²</span>, HIRHAM5, MAR3.10, MetUM, and RACMO2.3p2), forced by ERA-Interim reanalysis, in simulating the near-surface climate and surface mass balance (SMB) of Antarctica. All models simulate Antarctic climate well when compared with daily observed temperature and pressure, with nudged models matching daily observations slightly better than free-running models. The ensemble mean annual SMB over the Antarctic ice sheet (AIS) including ice shelves is <span class="inline-formula">2329±94</span> Gt yr<span class="inline-formula">⁻¹</span> over the common 1987–2015 period covered by all models. There is large interannual variability, consistent between models due to variability in the driving ERA-Interim reanalysis. Mean annual SMB is sensitive to the chosen period; over our 30-year climatological mean period (1980 to 2010), the ensemble mean is 2483 Gt yr<span class="inline-formula">⁻¹</span>. However, individual model estimates vary from <span class="inline-formula">1961±70</span> to <span class="inline-formula">2519±118</span> Gt yr<span class="inline-formula">⁻¹</span>. The largest spatial differences between model SMB estimates are in West Antarctica, the Antarctic Peninsula, and around the Transantarctic Mountains. We find no significant trend in Antarctic SMB over either period. Antarctic ice sheet (AIS) mass loss is currently equivalent to around 0.5 mm yr<span class="inline-formula">⁻¹</span> of global mean sea level rise <span class="cit" id="xref_paren.1">(<a href="#bib1.bibx66">Shepherd et al.</a>, <a href="#bib1.bibx66">2020</a>)</span>, but our results indicate some uncertainty in the SMB contribution based on RCMs. We compare modelled SMB with a large dataset of observations, which, though biased by undersampling, indicates that many of the biases in SMB are common between models. A drifting-snow scheme improves modelled SMB on ice sheet surface slopes with an elevation between 1000 and 2000 m, where strong katabatic winds form. Different ice masks have a substantial impact on the integrated total SMB and along with model resolution are factored into our analysis. Targeting undersampled regions with high precipitation for observational campaigns will be key to improving future estimates of SMB in Antarctica.</p>

LA STAGIONE ESTIVA DELLA GROENLANDIA SEMBRA TERMINATA, QUASI UN MESE PRIMA DEL&nbsp;PERIODO