Sentences with phrase «based spectroscopic observations»
Materials known to exist at Pluto's surface from ground - based spectroscopic observations include highly volatile cryogenic ices of N2 and CO, along with somewhat less volatile CH4 ice, as well as H2O and C2H6 ices and more complex tholins that are inert at Pluto surface temperatures.
http://science.sciencemag.org/ Not exact matches
The appearance of the plumes in this graphic is based on spectroscopic observations of oxygen and hydrogen in the auroral emissions.
«We are looking at several cubic miles of lava in rapidly emplaced flows,» said Davies, who has developed models to predict the volume of magma erupted based on spectroscopic observations.
The «clear sky radiative forcing due to CO2» (3.7 W / m ^ 2 for a doubling per Myhre et al. 1998b and IPCC TAR) is not a measured entity based on empirical data from actual physical observations or reproducible experimentation, but rather an estimated value based on laboratory studies of spectroscopic data.