Not exact matches
(Parenthetically, tide gauge
measurements of
sea level are
made relative to the adjacent land, and have shown
sea level rises encroaching on the shoreline).
Has realclimate ever done (or considered doing) an entry about the immense contribution that satellite
measurements have
made in the past two - three decades, in helping us to understand various components of the earth system (e.g., vegetation, ozone, ice sheet mass, water vapor content, temperature,
sea level height, storms, aerosols, etc.)?
Indeed, the first point
made in this Skeptical Science article is «A variety of different
measurements find steadily rising
sea levels over the past century.».
[Ankh]:» «As for CO2 itself, the old
measurements made at
sea -
level pressure had little to say about the frigid and rarified air in the upper reaches of the atmosphere, where most of the infrared absorption takes place.
I've been doing climate database work for a long time and have learned a few shortcut methods that
made it at least possible to get an average
sea level out of the
measurements.
A combination of 33 - year satellite records,
measurements made over the past century, and long - term proxy analysis suggests Arctic
sea ice may be at its lowest
level for more than 1,000 years.
Global
sea level keeps marching up at a rate of over 30 cm per century since 1992 (when global
measurements via altimetry on satellites were
made possible), and that is perhaps a better indicator that global warming continues unabated.
If it were true then starting from 3.0 mm / yr today and looking back would entail a decline in
sea level of 28.2 cm / century back in 1985 when GEOSAT was launched to
make such
measurements.
Things like
sea level rise and ARGO
measurements are used to «correct» CERES data so that it all appears to
make sense.