Sea level rise is a climate signal that’s notoriously difficult to measure properly. The ocean surface goes up for more than one reason – and working out how much is down to warming water versus added meltwater can cause some serious headaches for scientists.
Now, according to fresh research led by scientists at The Hong Kong Polytechnic University (PolyU), there’s a clearer answer.
The team has produced what it describes as the first highly precise 30-year record (1993–2022) of global ocean mass change – basically tracking how much extra water has been added to the seas over time.
How the researchers measured it
The researchers, led by Prof Jianli Chen with Dr Yufeng Nie as lead and corresponding author, used satellite laser…
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