Sentences with phrase «tune atmospheric models»

Not exact matches

Von Issendorff and his colleagues expect their findings will fine - tune models that explain and predict cloud formation and climate, atmospheric chemistry, and the evolution of water - rich objects in outer space, such as fledgling comets.

On that topic, I question the precision of the model's parameters on the grounds that the scenarios to which the model is tuned are not persistent, reliable, indicative features of the atmospheric / oceanic circulation.

«What we've done is we've taken a model that was once tied to plant phenology and adapted it to be more tuned to the atmospheric component so that we can isolate the part that's driven by the climate system or is driven by the atmosphere.»

The experiments were performed with ModelE2, a new version of the NASA Goddard Institute for Space Sciences (GISS) coupled general circulation model that includes three different versions for the atmospheric composition components: a noninteractive version (NINT) with prescribed composition and a tuned aerosol indirect effect (AIE), the TCAD version with fully interactive aerosols, whole - atmosphere chemistry, and the tuned AIE, and the TCADI version which further includes a parameterized first indirect aerosol effect on clouds.

None of these could have been caused by an increase in atmospheric CO2, Model projections of warming during recent decades have greatly exceeded what has been observed, The modelling community has openly acknowledged that the ability of existing models to simulate past climates is due to numerous arbitrary tuning adjustments, Observations show no statistically valid trends in flooding or drought, and no meaningful acceleration whatsoever of pre-existing long term sea level rise (about 6 inches per century) worldwide, Current carbon dioxide levels, around 400 parts per million are still very small compared to the averages over geological history, when thousands of parts per million prevailed, and when life flourished on land and in the oceans.