Mj. Salinger et al., RECONSTRUCTION OF NEW-ZEALAND CLIMATE INDEXES BACK TO AD1731 USING DENDROCLIMATIC TECHNIQUES - SOME PRELIMINARY-RESULTS, International journal of climatology, 14(10), 1994, pp. 1135-1149
Reconstructions of temperature and zonal and meridional flow over New
Zealand are presented for the period back to AD 1731. The reconstructi
ons have made use of ring-width chronologies from five endemic species
(three different genera); the first time multispecies reconstructions
have been attempted in New Zealand. The chronologies were standardize
d using techniques that attempted to maintain as much of the low-frequ
ency variance in the tree-ring series as possible, so that long-term c
limatic trends could be detected. In independent periods verification,
the reconstructions of temperature explain between 30 and 33 per cent
of the variance, whereas zonal and meridional flow reconstructions ex
plain 31-43 per cent and 18-39 per cent of the variance, respectively.