For a fuller description of the paper itself, go to the end of this web page.
Each simulation published in this paper corresponds to a unique 5 or 6 character code on the web pages.
The following table lists the name of the simulation as used in the paper, and the corresponding code name
The webpage gives you the ability to examine the published simulations, but you can also download the raw (netcdf) files to perform your own analysis. Detailed instructions on how to use the webpages and access the data can be found here: Using_BRIDGE_webpages.pdf
Using a series of freshwater hosing experiments from the SOFIA experimental design, the climate response to a constant and uniform flow of 0.1Sv from the AIS over ~1000 years is investigated.
You can have make you own analysis and plots by going here
| Simulation Name as in Paper | Simulation name on web pages |
|---|---|
| piControl | xpurb |
| antwater | xpzdb |
| antwater 60S | xpurd |
Antarctic Ice Sheet (AIS) meltwater has a significant impact on the climate system; however, the manner in which the AIS loses mass does not strongly control this response.
| Name | Mistry etal 2025 |
|---|---|
| Brief Description | Antarctic Ice Sheet (AIS) meltwater has a significant impact on the climate system; however, the manner in which the AIS loses mass does not strongly control this response. |
| Full Author List | A. Mistry, DJ. Lunt, X. Ren |
| Title | Global climate system response to SOFIA Antarctic meltwater in HadCM3-M2.1 |
| Year | 2025 |
| Journal | EGUsphere |
| Volume | 19 |
| Issue | 3-4 |
| Pages | |
| DOI | 10.5194/tc-19-6989-2025 |
| Contact's Name | Amar Mistry |
| Contact's email | jz18106@bristol.ac.uk |
| Abstract | As the climate continues to warm, the Antarctic Ice Sheet (AIS) and its surrounding floating ice shelves are becoming increasingly susceptible to rapid collapse. Despite the potential impact this poses to the global climate system, the effects of ice-climate feedbacks are not directly considered by most existing coupled climate models, including those in the most recent Coupled Model Intercomparison Project (CMIP6). As such, there remains much uncertainty over the impact of this additional meltwater on current global climate change projections. Here, we use the coupled atmospheric-ocean general circulation model HadCM3-M2.1 to study the effect of a continuous meltwater discharge from the AIS on the global climate system. This involves carrying out a series of freshwater hosing experiments based on the newly proposed Southern Ocean Freshwater Input from Antarctica (SOFIA) Initiative. Due to the relative computational efficiency of the HadCM3-M2.1 model, we are able to explore longer timescales than is usual. We find that ~1000 years of continuous meltwater drives global atmospheric cooling, sea ice expansion in both hemispheres and a northward shift of the Intertropical Convergence Zone (ITCZ). The resulting freshening of the global ocean results in the weakening of both the AMOC and AABW. This triggers pervasive ocean warming at depths greater than 5000 m. An additional sensitivity study is also conducted in which the sensitivity of the climate model response to a change in the horizontal distribution of AIS meltwater is tested. As a result, we find that the manner in which the AIS loses mass, whether that be predominately through iceberg mass loss or basal melt, is unlikely to affect the global climate response to AIS meltwater. |