More than 19,000 undersea volcanoes discovered. Spectacular!

Is that the true reason for Climate Change? 😊 Or is it the heat island effect? We still have very little knowledge what actually goes on in our vast oceans!

Remember, Global Warming is a hoax and Climate Change is a religion!

"A team of oceanographers at the Scripps Institution of Oceanography, working with a colleague from Chungnam National University and another from the University of Hawaii, has mapped 19,000 previously unknown undersea volcanoes in the world's oceans using radar satellite data. ...
But most importantly, they have a very strong impact on deep-sea ocean flow. As currents run into seamounts, they are pushed upward, carrying colder water with them, and mix in unknown ways. Mapping such currents has become more important as the oceans absorb more heat and carbon dioxide from the atmosphere and freshwater melt, due to ongoing climate change. ..."

"... Seamounts are active or extinct volcanoes ..."

From the key points and abstract:

"Key Points

• We used the latest vertical gravity gradient maps to update and refine a global seamount catalog, finding 19,325 new seamounts
• Smaller seamounts (<2,500 m tall) having good bathymetry coverage (739) were modeled with a radially symmetric Gaussian function
• Two modeling approaches show that smaller seamounts have a sigma to height ratio of 2.4 which agrees with an earlier study by Smith (1988)

Seamounts are isolated elevations in the seafloor with circular or elliptical plans, comparatively steep slopes, and relatively small summit area (Menard, 1964). The vertical gravity gradient (VGG), which is the curvature of the ocean surface topography derived from satellite altimeter measurements, has been used to map the global distribution of seamounts. We used the latest grid of VGG to update and refine the global seamount catalog; we identified 19,325 new seamounts, expanding a previously published catalog having 24,643 seamounts. Seven hundred thirty-nine well-surveyed seamounts, having heights ranging from 421 to 2,500 m, were used to estimate the typical radially symmetric seamount morphology. First, an Empirical Orthogonal Function (EOF) analysis was used to demonstrate that these small seamounts have a basal radius that is linearly related to their height—their shapes are scale invariant. Two methods were then used to compute this characteristic base to height ratio: an average Gaussian fit to the stack of all profiles and an individual Gaussian fit for each seamount in the sample. The first method combined the radial normalized height data from all 739 seamounts to form median and median-absolute deviation. These data were fit by a 2-parameter Gaussian model that explained 99.82% of the variance. The second method used the Gaussian function to individually model each seamount in the sample and further establish the Gaussian model. Using this characteristic Gaussian shape we show that VGG can be used to estimate the height of small seamounts to an accuracy of ∼270 m."

Radar satellite data reveals 19,000 previously unknown undersea volcanoes

Global Distribution and Morphology of Small Seamounts (open access)

Figure 5 For each seamount example