Climate scientist with a passion for the past, interest in future and concern about changes happening right now. Views are my own.
Melbourne, Australia
Joined July 2009
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Very excited to see our work on the different types of El Niño published today @NatureGeosci showing dramatic changes of El Niño towards more Central and stronger Eastern Pacific El Niño events @unimelb @Monash_Science @uow @anuearthscience @CSIROnews #climatechange @NASA @NOAA
Mandy Freund retweeted
The El Niño climate pattern has long influenced weather across the globe. @AndrewKingClim @ClimateFreund @JosephineRBrown @nicola__maher @adi_sen99 @OurANU @unimelb theconversation.com/extreme-…
Mandy Freund retweeted
It threatens to compound the worst effects of climate change. @ClimateFreund @unimelb theconversation.com/a-record…
Mandy Freund retweeted
La Niña seems still possible but not very likely. We looked at year to year transitions from El Niño and historically only 16.7% of all cases resulted into a La Niña the next year iopscience.iop.org/article/1…
Mandy Freund retweeted
A new study by Ruby Lieber, Dr. Josephine Brown, Dr. Andrew King and Dr. Mandy Freund reveals that ENSO teleconnections may amplify with climate change, leading to more severe temperature and precipitation extremes globally.
climateextremes.org.au/clima…
La Niña seems still possible but not very likely. We looked at year to year transitions from El Niño and historically only 16.7% of all cases resulted into a La Niña the next year iopscience.iop.org/article/1…
Mandy Freund retweeted
Reaching Net Zero is critical and our pathway towards Net Zero is also critical as it affects how our climate will look after we cease emitting Greenhouse gases. Go check out a new Briefing note by @ClimateExtremes to learn more about it.
#NetZero
What is net zero and what happens after we reach it? After net zero, the global average temperature is expected to roughly stabilise. Temperatures over land would begin to cool, while parts of the ocean continue to warm. Read our new briefing note here:
climateextremes.org.au/under…
Mandy Freund retweeted
I am excited to see this study published @CommsEarth! It uses a deep learning model to infer summertime atmospheric blocking frequencies from seasonally averaged surface temperature reconstructions over the Last Millennium. 1/n nature.com/articles/s43247-0…
Mandy Freund retweeted
Signs of this potential La Niña are emerging fairly late. But new research may help make predictions earlier writes @ClimateFreund @unimelb theconversation.com/australi…
Mandy Freund retweeted
The precipitation stacked up along the strong thermal boundary, held in place by important areas of high pressure and enhanced by the orography.
The rain is still falling but we already know Austria rainfall records are being pulverised (more on that when the dust settles).
Mandy Freund retweeted
New paper led by Ruby Lieber and with @JosephineRBrown @ClimateFreund studies ENSO teleconnections with extremes. Ruby found amplification of teleconnections in many regions with global warming and this effect is stronger in models with strengthening ENSO journals.ametsoc.org/view/jo…
Mandy Freund retweeted
Excited to share our new paper on two multi century seasonal streamflow reconstructions for western Tasmania! We show streamflow has been declining in the last 100 years but the 15th century was much drier. Awesome team of co-authors👇sciencedirect.com/science/ar…
Mandy Freund retweeted
The Bureau of Meteorology has declared that El Niño and a positive Indian Ocean Dipole (IOD) are underway. Warmer and drier conditions have already been forecast for spring and summer for parts of Australia. Details: bom.gov.au/climate/enso/
Mandy Freund retweeted
Europe's summer #droughts since 2015 have been the most severe for centuries - but not the only multi-year droughts. This is shown by #isotope analyses of #tree rings across Europe, which thus prove to be a unique tool for #climate research.
Full story👉gfz-potsdam.de/en/press/news…
ALT Pic above: Locations of the trees for isotope analysis, distributed throughout Europe. Here: Principle of minimally invasive removal of a wood sample from a living tree trunk using an increment borer: A drill core about the thickness of a small finger is pulled out of the living tree trunk by hand. Tree rings allow precise dating centuries into the past: The isotope ratios of carbon 13C to 12C and oxygen 18O to 16O in the cellulose of the tree trunk are indicators of drought or moisture at the time of tree growth. (Pictures: G. Helle / GFZ)
Mandy Freund retweeted
The 2015-2018 summer drought event was unprecedented in Western and Central Europe over the last 400 years, though multi-year droughts were more frequent during the Maunder Minimum.
@ClimateFreund
nature.com/articles/s43247-0…
Three babies (two bubs & one PhD) and seven years later, I am delighted to share our research on unusual European hydroclimate using tree-ring isotopes. (nature.com/articles/s43247-0…). @GFZ_Potsdam @FU_Berlin @AWI_de @ClimateCollege @CSIROnews 1/n
This study was only possible with the support of my co-authors & many amazing people along the way. A big thank you to everyone involved in the ISONET project, the tree-ring community & numerous remarkable individuals throughout the process. 10/n #DFG
@dfg_public @CopernicusEU
The reconstruction, statistics and additional information are available at: doi.org/10.26188/21988628.v1. 11/11