In south Florida, the pace of sea level rise at
local tidal gauges, by last year, had gone exponential.
He checked
local tidal gauges, revealing that seas in the region were rising nearly 10 times faster than the long - term rate recorded in that region.
Not exact matches
Bangladeshis don't want to give up land to rising tides, and
local scientists complain that Pethick's analysis relies on only three
tidal gauges.
The biggest difficulty in using
tidal gauges to study global sea level trends is separating
local changes from global changes.
This will have introduced an artificial «sea level rise» trend into the
tidal gauge records for those areas, which is actually due to the
local land subsiding.
We define nuisance flooding as occurring when the water level at a NOAA
tidal gauge exceeds the
local threshold for minor flooding impacts that has been established by the
local Weather Forecasting Offices (WFO) of the National Weather Service (NWS).
However, as we have seen throughout this section, the
tidal gauge estimates the IPCC used to estimate global sea level trends are contaminated by
local trends, such as tectonic activity, post-glacial rebound... and the coastal subsidence that Syvitski et al. identified!
So, the effects of such events on
local trends would vary from
tidal gauge to
tidal gauge.
In order to use
tidal gauges to reliably estimate global sea level changes, researchers have to successfully separate the components of shifting land heights and
local sea level variability from any global trends.
A good scientist would have issued a correction something along the lines of «I missed the fact that
tidal gauges are influenced strongly by
local changes in land elevation due to river silt, human activity, post-ice age rebound, and earthquakes.
So you've gone through and looked at all the individual
tidal gauges, corrected for
local effects like post glacial rebound from the last ice age,
local subsidence due to soil compaction or groundwater removal,
local soil buildup due to
tidal or river silt deposition, discontinuities due to earthquakes, and the like?
With respect to Church et al 2008, you're neglecting to mention (or perhaps didn't read enough of the paper to notice) is that, unlike you're «eyeballing» method, they actually adjusted
tidal gauges for changes in
local land elevation before drawing any conclusions from unadjusted data.