Sentences with phrase «paleoclimatic data for»

Paleoclimatic data for southwestern North America provide extensive documentation of past droughts (21, 22).

Specifically, providing user - friendly open access to a comprehensive uniform database incorporating all relevant paleoclimatic data for the past 2000 years in a logical format will spur these advances.

Not exact matches

A 2008 study led by James Hansen found that climate sensitivity to «fast feedback processes» is 3 °C, but when accounting for longer - term feedbacks (such as ice sheet disintegration, vegetation migration, and greenhouse gas release from soils, tundra or ocean), if atmospheric CO2 remains at the doubled level, the sensitivity increases to 6 °C based on paleoclimatic (historical climate) data.

... Migration appears to be limited to either the preceding or following seasonal layer for each species, suggesting that paleoclimatic interpretations based on data with lower than annual resolution are not likely to be affected.

DESCRIPTION: Temperature sensitive paleoclimatic multi-proxy data from 17 sites worldwide were used to generate thousand year long records of temperature for both hemispheres.

However in W. 2.1 we find on p. 11 «Table 1: Principal Sources of Proxy Data for Paleoclimatic Reconstructions After Bradley (1999)».

Quite often this awkward nature of paleoclimatic proxy data is not properly accounted for when performing standard time series analyses, which were developed for evenly sampled and stationary time series over a well - defined time axis.

We thank Dorian Burnette for assistance with map graphics and the many researchers who made their paleoclimatic and climate model output available; M.B. Stevens, J.F. Gonzalez - Rouco, and H. Beltrami for providing ECHO - g output data for analysis; and the paper's two reviewers and editor.

Assuming the paleoclimatic evidence (ice core data for example) for the temperature / CO2 correlation is resonably accurate, it is apparent that climate shifts from warming to cooling at CO2 peaks (maximum «forcing») and from cooling to warming at CO2 troughs (minimum «forcing»).

There are three possible methods for assessing the background of natural internal variability: examination of the historical data record, examination of the paleoclimatic proxy data record, and long - term climate model simulations.