Global atmospheric response to emissions from a proposed reusable space launch system

The Road from the NASA Access-to-Space Study to a Reusable Launch Vehicle

portunity to reduce launch costs, and improve safety and reliability was to develop a fully reusable single-stage-to-orbit vehicle capable of delivering 25,000 lb to the International Space Station. The study identified many technologies that had to be matured before a commitment could be made to build such a vehicle. NASA accepted the recommendation and the need for new technology as the key t...

Local and remote atmospheric response to tropical instability waves: A global view from the space

A La Niña took place in the equatorial Pacific in 1999, and strong tropical instability waves (TIWs) developed, causing large meanders of a sea surface temperature (SST) front between the equator and 3◦N. High-resolution satellite measurements are used to describe the variability of SST, surface wind velocity, column-integrated water vapor, cloud liquid water and precipitation associated with t...

Towards a Global Social Support System: A Response to the Recent Commentaries

Nitrogen trifluoride global emissions estimated from updated atmospheric measurements.

Nitrogen trifluoride (NF(3)) has potential to make a growing contribution to the Earth's radiative budget; however, our understanding of its atmospheric burden and emission rates has been limited. Based on a revision of our previous calibration and using an expanded set of atmospheric measurements together with an atmospheric model and inverse method, we estimate that the global emissions of NF...

Atmospheric constraints on global emissions of methane from plants

[1] We investigate whether a recently proposed large source of CH4 from vegetation can be reconciled with atmospheric measurements. Atmospheric transport model simulations with and without vegetation emissions are compared with background CH4, d C-CH4 and satellite measurements. For present–day CH4 we derive an upper limit to the newly discovered source of 125 Tg CH4 yr . Analysis of preindustr...