Oceanographer @ccrc_unsw, usually to be found in on, or sometimes under-, water.
Sydney, New South Wales
Joined March 2012
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Proud to see Fernando’s first PhD paper out, wahoo!
NEW: Sobral et al. use a simulation to explore how the EAC transports heat, its seasonal variability, and how this affects other important variables for temperature in the ocean.🌊
🔗Check out their #OpenAccess paper: doi.org/10.1029/2023JC020438
#AGUPubs
ALT New in JGR: Oceans: Mean-State and Seasonal Variability in Temperature Structure and Heat Transport in the East Australian Current System From a Multi-Decadal Regional Ocean Model by Sobral et al. 2024
Awesome images, and a rather fantastic patch of ocean
Just in – data from our newest Earth-observing satellite, PACE!
With PACE data, scientists can study microscopic life in the ocean and particles in the air, allowing us to monitor ocean health, air pollution, and impacts of climate change. More: go.nasa.gov/4aNNGe2
ALT Three panel image with brown land in the top right corner and ocean below.The section to the left shows the ocean in true color. The ocean is dark blue, near the coastline swirls of teal and green begin to form – a phytoplankton bloom. The middle section of the image is shown in pink further out and green near the shore. The right section of the image is shown in reds, yellows, and greens closer to the shore and dark blues and purples further out.
It's been a rather rainy week here in Sydney, it felt a lot like the record rains of 2022. So I plotted up the data and wow! This week has been an almost perfect match with April 2022. However, in 2022 we had already received an entire year's worth of rainfall by this stage.
You can see the effect of an increase in the amount of freshwater flowing into the ocean in this ocean colour image from @IMOS_AUS oceancurrent (red patches along the coast next to rivers and estuaries). Note how the plumes flow north due to Coriolis!
Neil Malan retweeted
Last June was the warmest on record,
last July too,
last August too,
last September too,
last October too,
last November too,
last December too,
last January too,
and last February too.
ourworldindata.org/temperatu…
Oof! The Kuroshio looking a bit toasty
Sea temps across much of the global ocean are alarmingly high, with extensive MHW activity. However, coastal waters off Japan have been in a near-permanent MHW state for ~1 year. The current winter MHW is remarkable, with max intensity of >11 degC !!! #marineheatwaves #MHWs
Neil Malan retweeted
Sea temps across much of the global ocean are alarmingly high, with extensive MHW activity. However, coastal waters off Japan have been in a near-permanent MHW state for ~1 year. The current winter MHW is remarkable, with max intensity of >11 degC !!! #marineheatwaves #MHWs
Neil Malan retweeted
🚢#SEAmester, SA's 🇿🇦 floating classroom, offers a 10-day #marine #science programme to #postgrads in the core sciences. Combine classroom learning with hands-on #research experience at sea⚓️
⏰Apply by 15 April.
seamester.co.za/apply/?doing…
Hey all #OSM2024 attendees - interested in subsurface marine heatwaves? Come and hear my thoughts in Great Hall A at 10:30 this morning
What does it all mean? With an increase in extreme rainfall expected in the future, we need to pay more attention to freshwater discharge in normally ‘dry’ areas such as eastern Australia.
To keep pace with a changing climate, and the expected increase in extreme events, we need to include freshwater discharge in our model simulations, and ensure our observe networks don’t neglect coastal salinity.
Neil Malan retweeted
Floodwaters pulsing into the sea normally clear within six days, but the 2022 floods in eastern Australia were different.
It can leave a 50 metre thick layer of brown water in the sea – and cause real problems, write @NeilMalan + @moninya (@UNSW). theconversation.com/when-flo…
It turns out it hangs around for a surprisingly long time.
We used a combination of moorings, gliders and remote sensing to define an observational extremes framework for salinity. This allowed us to track the extent and longevity of freshwater plumes associated with floodwaters
What happens when a historic year of rainfall dumps a bunch of freshwater into the ocean next to a western boundary current?
In @NatureComms today, @moninya, @mphemming, Tim Ingleton and I look at the impact of the 2022 East Australian floods on the ocean
nature.com/articles/s41467-0…
Neil Malan retweeted
Renewables cheaper than nuclear, coal now and into the future: CSIRO. The nation’s top science agency concludes that fossil fuels and nuclear tech cannot produce electricity as cheaply as wind and solar farms. smh.com.au/politics/federal/…
SW Indian Ocean is still going
The MHW in the western Indian Ocean, off Madagascar, continues to develop, with absolute temps exceeding 28 degC (~3 deg C warming anomaly)
#MHWs #marineheatwaves
Unfortunately it looks like the SW Indian Ocean marine heatwave, which has been going since May, is only intensifying as we head into summer - not good news for some of my favourite islands.
image: marineheatwaves.org
Neil Malan retweeted
A significant MHW has developed off Madagascar, with 'severe' intensity recorded for last two weeks and SSTs of >27 deg C (> 2 deg warmer than average).
#MHWs #marineheatwaves
