http://sealevel.colorado.edu/
Mis-pasted link On Apr 29, 2012, at 22:43, Ken Caldeira <[email protected]> wrote: > I would be very suspicious of indirect quotes attributed to unnamed ipcc > authors. The truth of scientific statements depends on how they are > qualified. > > I am no expert in this area but my understanding is that satellites are > subject to decaying orbits, aliasing with respect to satellite orbits and > tides, and a myriad of other complicating factors. > > Often, people who claim they are showing 'raw' satellite data are just > displaying their ignorance of these complicating factors. > > My understanding is that satellites are often calibrated using tide gage > data. See for example. > > http://imos.org.au/srscalval.html > > http://imos.org.au/srscalval.html > > Ken Caldeira > [email protected] > +1 650 704 7212 > http://dge.stanford.edu/labs/caldeiralab > > Sent from a limited-typing keyboard > > On Apr 29, 2012, at 21:52, Robert Chris <[email protected]> wrote: > >> I have come across the work of Nils-Axel Morner who holds that IPCC reports >> that sea level is rising are inaccurate and alarmist. In his 2004 paper >> (http://www.sciencedirect.com/science/article/pii/S0921818103000973) he >> shows a graph of 'raw data' from the TOPEX/Poseidon satellite which shows >> that over the period from 1993 to 1999 there was no discernible change in >> global sea level. In IPCC AR4 Ch5 reference is made to a 2004 paper by >> Cazenave and Nerem which presents the same TOPEX/Poseidon data extended to >> 2003 but now shows a clear rising trend >> (http://www.eos.ubc.ca/~mjelline/453website/eosc453/E_prints/2003RG000139.pdf). >> In AR4 this series is further extended to 2006 and shows a continuing >> rising trend. It is very much based on this paper that the AR4 drew its >> conclusions about sea level rise. >> >> Can someone explain to me why, at least for the first 6 years, these two >> presentations of the same data show such divergent trends? >> >> Morner is also reported as saying: >> >> 'In 2003 the satellite altimetry record was mysteriously tilted upwards to >> imply a sudden sea level rise rate of 2.3mm per year. When I criticised this >> dishonest adjustment at a global warming conference in Moscow, a British >> member of the IPCC delegation admitted in public the reason for this new >> calibration: ‘We had to do so, otherwise there would be no trend.’ >> (http://iceagenow.info/2011/12/satellite-sea-level-data-tilted-distort-figures-sea-level-expert/) >> >> >> Robert Chris >> The Open University >> [email protected] >> -- >> You received this message because you are subscribed to the Google Groups >> "geoengineering" group. >> To view this discussion on the web visit >> https://groups.google.com/d/msg/geoengineering/-/WuGgEKlDiLEJ. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/geoengineering?hl=en. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
