subsurface
subsurface on World Data Ocean: a running collection of 2 stories we have gathered and hand-picked because they are worth your time. Every post here touches on subsurface in some way — the news, the analysis, the deep dives, and the occasional surprise find. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to explore, analyze, and… New stories are added to this page as we find them, so check back if you want to keep up with what is happening around subsurface, or subscribe to the RSS feed to get them as soon as they are published. Browse the collection below, or head back to the homepage to see everything World Data Ocean is covering right now.
‘Thunderquakes’ do more than shake the ground — they map it
Recent research demonstrates a novel application of “thunderquakes”—low-frequency seismic events generated by distant storms—to map subterranean landscapes. Scientists have ingeniously repurposed existing fiber-optic cables, typically used for telecommunications, to detect these vibrations and create high-resolution geological maps. This innovative technique offers a non-invasive means of identifying potential hazards beneath urban areas and beyond. For further exploration of oceanographic research, consider our article detailing how we are tracking plastic pollution across remote ocean regions.
Assessing Mediterranean Sea temperature and salinity trends using Argo float data and reanalysis products between 2012 and 2025
A recent study rigorously assesses Mediterranean Sea temperature and salinity trends from 2012 to 2025, leveraging data from Argo floats and reanalysis products across three key basins. Findings reveal consistent warming, particularly in the Western Mediterranean and Ionian Sea, alongside salinity fluctuations influenced by North Atlantic freshening. Notably, subsurface salinification is also observed. While discrepancies exist due to data density, both datasets confirm ongoing warming and salinification, underscoring the impact of climate change.