Sentences with phrase «isotopic measurements»

Although the samples are two orders of magnitude smaller than typical air samples for methane isotopic measurements, Fischer's team was able to obtain precise measurements of carbon - 13 to carbon - 12 ratios.

Cuffey developed a technique to combine these temperature measurements, which are smoothed as a result of heat diffusion in the ice, with isotopic measurements of old ice to come up with an estimated temperature of 11.3 degrees, plus or minus 1.8 degrees Celsius, warming since the depths of the ice age.

This talk provides an overview and tour of the findings from Curiosity, featuring spectacular high definition images, tantalizing mineralogical evidence for fresh water, and atmospheric isotopic measurements indicative of an ancient climate different from today.

«In addition, we are currently developing a method that also allows for high - precision hydrogen isotopic measurements on methane in ice cores, which will further improve our emission flux constraints,» revealed Fischer.

Using chemical, biological, optical, and isotopic measurements, researchers from Québec, Denmark, Finland, and Sweden have analyzed hundreds of samples from 14 circumpolar regions spanning from Alaska to Russia (from the subarctic zone to the High Arctic).

Paul — please reference the isotopic measurements you reference.

The use of isotopes has not yet conclusively identified new sources nor constrained the N2O budget better than other approaches, but the emerging data set of isotopic measurements, including measurements of the intra-molecular position of 15N in N2O isotopomers (Yoshida and Toyoda, 2000) will provide better constraints in the future.