date: Fri, 08 Nov 1996 17:38:50 +0100
from: Theodor Forster <theodor.forsteratXYZxyz.ch>
subject: Sharpness quality test
By order of Fritz Schweingruber I send you 10 chronologies from the sibirian
region 65�21'N 66�58'E to 69�06'N 84�32'E.
You found a drastical decrease in the max. latewooddensity compared to the
measured summertemperatures from 1950 to 1990.
To check the influence of technical inaccuracies in that timeframe, I
choosed from each site all cores with top sharpness quality and calculaded a
second chronology with them.
Therefore you receive the following files splited out in larix sibirica and
picea obovata. The second divide up is rowdates and indexed dates.
LASIALL.HCR larix / all cores / from 7 sites / row
LASITOP.HCR larix / 50 cores top quality / from same 7 sites / row
LASI ALL.HCI larix / all cores / from same 7 sites / index
LASITOP.HCI larix / 50 cores top quality / from same 7 sites / index
PCOBALL.HCR spruce / all cores / from 3 sites / row
PCOBTOP.HCR spruce / 26 cores top quality / from same 3 sites / row
PCOBALL.HCI spruce / all cores / from same 3 sites / index
PCOBTOP.HCI spruce / 26 cores top quality / from same 3 sites / index
Please compare the complete chronologies (LASIALL,PCOBALL) and the
chronologies only with cores of top quality (LASITOP,PCOBTOP) with the
summertemperatures in the same region.
The results will show us the influence of technical inaccuracies, which we
can not eliminate totaly.
Attachment Converted: c:\eudora\attach\SHARTEST.zip