Sentences with phrase «cosmogenic isotope data»

The 22 - year period was chosen because the cosmogenic isotope data used for the reconstruction (see below) are available as 22 - year averaged data (Steinhilber et al. 2008).

The BHMF trend thus obtained is then compared with the most recent reconstructions of the near - Earth HMF strength based on geomagnetic, sunspot number, and cosmogenic isotope data.

Not exact matches

On the other hand, Esper's data appear to be in close agreement with variations in cosmogenic isotopes whose production rates are indicators of variation in solar irradiance, and thus, global temperatures on Earth.

36Cl is another useful cosmogenic isotope, but that too has data quality and bomb contamination problems in the modern period.

Different records of solar activity (Wolf and group sunspot number, data on cosmogenic isotopes, historic data) were analyzed by means of modern statistical methods, including one especially developed for this purpose.

«The solar and volcanic forcings we use are derived from reconstructions based on proxy data and are therefore also subject to considerable uncertainties, although recent explosive volcanic eruptions are likely to have cooled climate, and independent records of solar activity levels inferred from the cosmogenic isotope 10Be (43) and geomagnetic records (44) provide support to reconstructions (22, 45) that show generally increasing solar activity during the 20th century (12).»

Typical reconstructions of historic heliospheric magnetic field (HMF) BHMF are based on the analysis of the sunspot activity, geomagnetic data or on measurement of cosmogenic isotopes stored in terrestrial reservoirs like trees (14C) and ice cores (10Be).

The extreme AGW cherry picking is also to ignore the paleoclimatic data and the cosmogenic isotope changes that correlate with the paleoclimatic data,

Cosmogenic isotopes provide the most extendable indirect data on the cosmic ray flux, the state of the heliosphere, and hence on the solar magnetic activity during the past.

The modulation potential used in the calculations is based on the composite of data determined from the cosmogenic isotope records of 10Be and a neutron monitor.

The scientists initially determined the rate of the LIS collapse using «radiocarbon dates of organic matter and marine shells, cosmogenic dates from the surface of boulders, and the composition of isotopes in marine sediment cores», but then the scientists also used a state - of - the art climate model to see if its results would bear out the paleoclimate data.