Bjørn K Vottestad

A closer look at the coastlines at Bangladesh shows extreme variations of sealevels that cannot be explained as just searise.
Open the post.

"Earth's surface gained 115,000 km2 of water and 173,000 km2 of land over the past 30 years, including 20,135 km2 of water and 33,700 km2 of land in coastal areas."

https://www.nature.com/articles/nclimate3111

Coastline colours;
-3m/yr Red, Orange, Sand, Light green, Green. +3m/yr

https://aqua-monitor.appspot.com/?datasets=shoreline&fbclid=IwAR3jFi3-ehckI6OLh5_elmk8tyxuQuzs76cHgtaUezNANkvFMAAWPkyoQtQ

https://notrickszone.com/2021/11/18/sea-level-alarmism-unravels-as-earths-coastlines-are-observed-expanding-since-1984/

According to long-term global tide gauge data (from the 100 tide gauges with more than 80 years of continuous data), sea levels have been gradually rising at rates of about +0.25 mm/year with no perceptible acceleration since the early 20th century.
Likewise, when satellite altimeters were originally deployed in the 1990s to early 2000s they consistently did "not show any sea level rise.”
A lack of sea level rise didn’t advance the narrative, of course.
So instead of reporting on what the actual satellite observations showed, arbitrary, subjective assumptions were employed to "correct” the data to show sea levels have been rising at rates of 3.2 mm/year instead.

The GMSL satellite altimeter data showed no rising trend for the first 5 years of the record. The first 5 years were then "corrected” to show +2.3 mm/year of sea level rise.

The GRACE satellite data showed the was a -0.12 mm/yr sea level fall trend from 2003 to 2008. After "correction,” this was changed to a +1.9 mm/year sea level rising trend.

"…the untampered results, not showing the desired sea level rise, were replaced by ‘corrected’ results. ntil August 4, 2011 the European Space Agency’s Envisat satellite was showing less than +0.976 mm/year sea level rise since 2004. A few months later, thanks entirely to further corrections, the same data set showed +2.97 mm/year of sea level rise.”

Conclusions by Parker and Ollier, 2016.

This analysis shows that the global network of tide gauges provide the best available measurement of the sea levels while the additional or substitutional information provided by GPS or satellite altimeter is of little help. The work is based on all the tide gauges included in the PSMSL surveys. The satellite altimeter GMSL models have crucial flaws that make them close to useless. These findings are important for coastal management.
The tide gauge results of sufficient quality and length permit the computation of local relative rates of rise or fall of sea level. The absence of acceleration in the naïve averaging of the tide gauges in the network and every local tide gauge indicate these rates are stable. Local planning should be locally based on these local rates and not on unrealistic computations.

https://notrickszone.com/2023/09/14/have-sea-level-rise-data-been-faked-altimetry-corrects-non-trends-to-show-rapid-acceleration/

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