01-Age estimates.gif

Figure “Alternative ice age estimate for Vostok ice core”

02-EPICA temperature and Milankovitch.gif

Figure “EPICA Dome – temperature and Milankovitch cycles”

03-EPICA temperature and CO2.gif

Figure “EPICA dome – Temperature and CO2”

04-Vostok temperature and Milankovitch.gif

Figure “Milankovitch cycles and temperature – Vostok ice core”

05-Vostok temperature and CO2.gif

Figure “Vostok ice core - Temperature and CO2”

06-Temperature - Vostok and EPICA.gif

Figure “Temperature – Vostok and EPICA ice cores”

07-Temperature - Vostok and GISP2.gif

Figure “Temperature Vostok and GISP2 ice cores”.

08-O18 - Nevado Huascaran.gif

Figure “Delta O18 Nevado Huascaran”

Epica-tpt-co2.csv

Temperature, CO2 and Milankovitch radiation from 802000 BP reformatted to 100 year time steps. The file has 4 columns, 8024 rows and 32022 non-blank items.

Epica-Vostok.csv

Temperature for Vostok and EPICA ice cores from 801700 BP reformatted to 100 year time steps. The file has 2 columns, 8020 rows and 20255 non-blank items.

Gisp2-tpt.csv

Temperature for the GISP2 (Greenland) ice core from 49000 BP. The file has 2 columns, 1637 rows and 3264 non-blank items.

hs2-100a.csv

O18 for Nevado Huascaran ice core from 19100 BP. The file has 3 columns, 199 rows and 567 non-blank items.

vostok-gisp2.csv

Comparison of Vostok and GISP2 temperature from 49981 BP. The file has 3 columns, 2397 rows and 4780 non-blank items.

Vostok-tpt-co2.csv

Temperature, CO2 and Milankovitch radiation form 422100 BP reformatted to 100 year time step. The file has 4 columns, 4226 rows and 1672 non-blank items.

01-Processing of tree ring data.gif

Figure “Tree rings – the 4 stages of processing”

01-Tree rings.jpg

02-Bristlecone Pine.jpg

Photo of Bristlecone Pines

02-Global tree ring width.gif

Figure “Global tree ring width”

03-Tree rings - temperature - global.gif

Figure “Global tree ring width and temperature”

04-Tree rings-temperature-northern.gif

Figure “Northern tree ring width and temperature”

05-Tree rings-temperature-southern.gif

Figure “Southern tree ring width and temperature”

06-Combined observed and calculated temperature - Dimmie.gif

Figure “Combined calculated and observed temperature – Dimmie”

07-Observed and calculated temperature - Dimmie.gif

Figure “Calculated and observed temperature – Dimmie”

08-Bristlecone pine tree rings.gif

Figure “Bristlecone pine tree ring widths”

09-Bristlecone pine and USA tree rings.gif

Figure “USA average tree ting width”

201-Northern hemisphere tree ring width.gif

Figure “Northern hemisphere tree ring width”

202-Tree ring width - Canada.gif

Figure “Tree ring width – Canada”

203-Tree ring width - Norway.gif

Figure “Tree ring width – Norway”

204-Tree ring width - Russia.gif

Figure “Tree ring width – Russia”

205-Tree ring width - Sweden.gif

Figure “Tree ring width – Sweden”

206-Tree ring width - USA.gif

Figure “Tree ring width – USA”

207- Southern hemisphere tree ring width.gif

Figure “Southern hemisphere tree ring width”

208-Tree ring width - Argentina.gif

Figure “Tree ring width – Argentina”

209-Tree ring width - New Zealand.gif

Figure “Tree ring width - New Zealand”

Stages of processing.csv

The file has 4 columns of annual tree ring width growth for the 4 stages of processing from 1579 to 1991. Te file has 2748 non-blank items.

Ring width and temperature.csv

The file has 7 columns of annual values. One with year, 3 with global , northern and southern tree rings and 3 with global , northern and southern temperatures. The file has 405 lines and 2004 non-blank items.

Ring width.csv

The files has global, northern and southern tree ring widths from 1600 to 2000. The file has 404 lines and 1523 non-blank items.

Northern hemisphere.csv

The file has tree ring data from 1600 to 1990 for 5 countries in the northern hemisphere. The files has 7 columns, 394 rows and 2650 non-blank items.

Southern hemisphere.csv

As above but for two countries in the southern hemisphere.

Canada.csv

The file has annual tree ring widths from 1600 to 2000 (if available) for two sites in Canada. For this and other country files the start data is in the early decades of the 17^th century and the files ends in the final decades of the 20^th century.

Norway.csv

As above

Russia.csv

As above

Sweden.csv

As above

USA.csv

As above but including data on Bristle Cone pines.

Argentina.csv

As above

New Zealand.csv

As above

BCone pine.csv

The file has annual ring widths for Bristle Cone Pine trees from the year 0 to 1990.

Dimmie.csv

The file has annual ring width, observed and calculated temperature for the period 1780 to 2007.