Alarmists Find New Excuse: Sea Levels Aren’t Rising Because ‘Ocean Bottom Deformation’

Sea turtle
Mark Kolbe/Getty

Scientists in the Netherlands have found a new excuse as to why sea levels are stubbornly refusing to rise in line with Al Gore’s doomsday predictions: “ocean bottom deformation.”
Apparently, they claim in a study by Thomas Frederikse et al, the weight of the extra water caused by all those melting glaciers and icecaps is so great that it is causing the sea bed to sink.

Their paper – titled ‘Ocean Bottom Deformation Due To Present-Day Mass Redistribution and Its Impact on Sea Level Observations’ – is published in Geophysical Research Letters.Here is the abstract:

Present-day mass redistribution increases the total ocean mass and, on average, causes the ocean bottom to subside elastically. Therefore, barystatic sea level rise is larger than the resulting global mean geocentric sea level rise, observed by satellite altimetry and GPS-corrected tide gauges. We use realistic estimates of mass redistribution from ice mass loss and land water storage to quantify the resulting ocean bottom deformation and its effect on global and regional ocean volume change estimates. Over 1993–2014, the resulting globally averaged geocentric sea level change is 8% smaller than the barystatic contribution. Over the altimetry domain, the difference is about 5%, and due to this effect, barystatic sea level rise will be underestimated by more than 0.1 mm/yr over 1993–2014. Regional differences are often larger: up to 1 mm/yr over the Arctic Ocean and 0.4 mm/yr in the South Pacific. Ocean bottom deformation should be considered when regional sea level changes are observed in a geocentric reference frame.

What this means is that seas are expanding much faster than is shown either by satellite altimetry or tide gauges. We just can’t see it because it’s happening, unnoticed, on the deep sea beds.

Read the rest at Breitbart.

Tidalgate: Climate Alarmists Caught Faking Sea Level Rise

AP/Tassanee Vejpongsa

Alarmist scientists have been caught red-handed tampering with raw data in order to exaggerate sea level rise.

The raw (unadjusted) data from three Indian Ocean gauges – Aden, Karachi and Mumbai – showed that local sea level trends in the last 140 years had been very gently rising, neutral or negative (ie sea levels had fallen).

But after the evidence had been adjusted by tidal records gatekeepers at the global databank Permanent Service for Mean Sea Level (PSMSL) it suddenly showed a sharp and dramatic rise.

The whistle was blown by two Australian scientists Dr. Albert Parker and Dr. Clifford Ollier in a paper for Earth Systems and Environment.

The paper – Is the Sea Level Stable at Aden, Yemen? – examines the discrepancies between raw and adjusted sea level data in Aden, Karachi and Mumbai.

Kenneth Richard at No Tricks Zone reports:

The authors expose how PSMSL  data-adjusters make it appear that stable sea levels can be rendered to look like they are nonetheless rising at an accelerated pace.

The data-adjusters take misaligned and incomplete sea level data from tide gauges that show no sea level rise (or even a falling trend).  Then, they subjectively and arbitrarily cobble them together, or realign them.   In each case assessed, PSMSL data-adjusters lower the earlier misaligned rates and raise the more recent measurements.  By doing so, they concoct a new linearly-rising trend.

Here is a before/after from Karachi:

Read the rest at Breitbart.