Paleo Climate

Below are links to earlier posts regarding paleo climate, along with associated graphs.  Click on the links to read the text associated with the graphs and click on any of the graphs to see a larger copy.

Paleo Climate Proxies

Climate Reconstrucions

A comparison of climate reconstructions from a composite of many ocean sediment cores (Bintanja) versus three different ice core reconstructions (Greenland GISP2 and Vostok and EPICA from Antarctica).

Matching Ice Core and Ocean Sediment Core Climate Proxies

Climate Reconstructions Adjusted to Match

A comparison of adjusted climate reconstructions from a composite of many ocean sediment cores (Bintanja) versus three different ice core reconstructions (Greenland GISP2 and Vostok and EPICA from Antarctica). The ice core reconstructions have been adjusted by the factor indicated to better match the ocean sediment reconstruction.

Climate Reconstructions Adjusted to Match

A comparison of adjusted climate reconstructions from a composite of many ocean sediment cores (Bintanja) versus three different ice core reconstructions (Greenland GISP2 and Vostok and EPICA from Antarctica). The composite ocean core reconstruction and Greenland GISP2 ice core reconstruction have been adjusted by the factor indicated to better match the Antarctica Vostok and EPICA ice core reconstructions.

Interglacial Comparisons

Interglacial Period Comparison

This graph compares the current interglacial period with the previous four interglacials using the EPICA ice core climate reconstruction. Each interglacial period has been normalized to the time the global temperature departure first reached the current “normal” temperature. Click on graph to enlarge.

Three Million Years of Climate Change

Climate Reconstructions

Global temperature reconstructions for the last million years from oxygen isotope ratio analyses of ocean sediment cores (Bintanja), Antarctic ice cores (EPICA and Vostok), and a Greenland ice core (GISP2).

Climate Reconstructions

Global temperature reconstructions for the last 3 million years from oxygen isotope ratio analyses of ocean sediment cores (Bintanja), Antarctic ice cores (EPICA and Vostok), and a Greenland ice core (GISP2).

Climate Reconstruction

Global temperature reconstruction for the last 3 million years based on oxygen isotope ratio analyses of ocean sediment cores (Bintanja).

Holocene Climate

Climate Reconstructions 11000 Years

Comparison of climate reconstructions for the last 11,000 years based on oxygen isotope ratio analyses of ice cores from Antarctica (EPICA and Vostok) and from Greenland (GISP2 and GRIP) along with the more recent HADCRUT4 global temperature measurement analysis (click to enlarge).

Climate Reconstructions 4000 Years

Comparison of climate reconstructions for the last 4,000 years based on oxygen isotope ratio analyses of ice cores from Antarctica (EPICA and Vostok) and from Greenland (GISP2 and GRIP) along with the more recent HADCRUT4 global temperature measurement analysis (click to enlarge).

Climate Reconstructions 2000 Years

Comparison of climate reconstructions for the last 2000 years based on oxygen isotope ratio analyses of ice cores from Antarctica (EPICA and Vostok) and from Greenland (GISP2 and GRIP) along with the more recent HADCRUT4 global temperature measurement analysis (click to enlarge).

Climate Reconstructions 2000 Years Composite

Composite of EPICA, Vostok, GISP2, and GRIP ice core climate reconstructions normalized to the 1000 year period ending 200 years ago and compared with the recent HADCRUT4 global temperature departure analysis (click to enlarge).

Climate Reconstructions 2000 Years to 0 AD

Composite of EPICA, Vostok, GISP2, and GRIP ice core climate reconstructions normalized to the 1000 year period ending 200 years ago and compared with the recent HADCRUT4 global temperature departure analysis, showing scale in years (click to enlarge).

The graphs below from Wikipedia show show longer time perspectives of 5 million and 65 million years.  The links go to explanatory text at Wikipedia.

5 Million Years of Climate Change

65 Million Years of Climate Change

 

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