Accurate Measurement of Atmospheric Helium Isotopes

Evidence for interannual variability of the carbon cycle from the National Oceanic and Atmospheric Administration/Climate Monitoring and Diagnostics Laboratory Global Air Sampling Network

T. J. Conway, Pieter P. Tans, Lee S. Waterman et al. · Journal of Geophysical Research Atmospheres · 1994 · 848 citations

Natural Sciences, Earth Sciences, Environmental Sciences +17

A Mass Spectrometer for Isotope and Gas Analysis

A. O. Nier · Review of Scientific Instruments · 1947 · 559 citations

Natural Sciences, Chemistry, Analytical Chemistry +15

TERRESTRIAL INERT GASES: Isotope Tracer Studies and Clues to Primordial Components in the Mantle

J. E. Lupton · Annual Review of Earth and Planetary Sciences · 1983 · 377 citations

Natural Sciences, Earth Sciences, Geology +17

Latitudinal distribution of the sources and sinks of atmospheric carbon dioxide derived from surface observations and an atmospheric transport model

Pieter P. Tans, T. J. Conway, Takakiyo Nakazawa · Journal of Geophysical Research Atmospheres · 1989 · 241 citations

Natural Sciences, Earth Sciences, Atmospheric Chemistry +7

Helium, argon, and carbon in some natural gases

Robert E. Zartman, G. J. Wasserburg, J. H. Reynolds · Journal of Geophysical Research Atmospheres · 1961 · 239 citations

Natural Sciences, Earth Sciences, Geology +13