A global mid-latitude study of the atomic oxygen green line emission intensity at 5577 A has been undertaken with the goal of developing a climatological understanding of the emission behavior and its usefulness as a tracer for the atmosphere near 97 km. Long-term observations have been analysed at nine stations covering ...

The effects of air motion in firn on geochemical species is examined. Stable isotope data from Taylor Mouth, Antarctica are compared with data from nearby Taylor Dome and are found to be significantly different. Three possible reasons for the difference between these two records are presented: (1) the standard stable isotope ...

A prevalence of cold, high pressure (P > 100 MPa) environments in the Solar System, and beyond, is discussed in the context of contemporary efforts to understand the origin and abundance of life in the Universe. Constraints on the depths of fluid circulation in extraterrestrial seafloors are explored through a model for the ...