Sentences with phrase «e.g. esper»

In a good number of the reconstructions, the sampling is largely of the extratropics, and the estimates largely represent extratropical temperature changes (e.g. Esper et al, 2003).

Not exact matches

This does two things that may be important: it allows the non-annually resolved proxies to be used (recent previous reconstructions, e.g. MBH98, Esper et al., used only those with at least a value each year, to allow calibration against the instrumental record; Moberg's approach allows the use of data that only provide 50 y means); and it throws away the long - term signal from the tree rings, which they consider to be untrustworthy.

[Response: It's probably worth adding that Jim's last conclusion is not universally shared (e.g. fig 3 from Esper et al, 2012 shows a very good correspondence between TRW and MXD chronologies).