Sentences with phrase «on atmospheric dust»

«Maybe others might be inspired and look at the geochemistry or atmospheric chemistry implications, such as how these water cluster structures on atmospheric dust nanoparticles could affect cloud formation, rain and acid rain,» Mavrikakis says.

Not exact matches

Scientists believe that dust has profound and somewhat mysterious influences on atmospheric chemistry, solar heat exchange and nutrient supply to the oceans and rain forests.

But Zahnle, an expert on atmospheric escape of gases, agrees with the main thrust of the study: Right now, dust storms are helping to bleed Mars dry.

But although some evidence points to past water oceans on Mars, only small amounts of carbonates have been found there — in Martian meteorites that landed on Earth and in atmospheric dust and bright soils on the planet.

Ice sheet albedo forcing is estimated to have caused a global mean forcing of about — 3.2 W m — 2 (based on a range of several LGM simulations) and radiative forcing from increased atmospheric aerosols (primarily dust and vegetation) is estimated to have been about — 1 W m — 2 each.

Low tack double - sided adhesive tape (the adhesive on the tape will attract atmospheric dust and fibres so it may be necessary to place a fresh strip over the original on a daily basis if the cat is persistent.)

Since coming to PNNL, he has led or been significantly involved in studies of effects of surface heterogeneity on boundary layer structure, of mesoscale atmospheric flows induced or modulated by complex terrain, of the simulation of dust emission by wind erosion, and of the capabilities of a variety of atmospheric instruments — including a mass spectrometer and wind profiling radar — for measuring atmospheric turbulence.

Think on atmospheric chemistry, individual rates for the reactions of nitrogen oxides and oxy - radicals can dependent on concentration, atmospheric pressure, temperature, light flux, liquid water levels, silicate surface (from dust) and «unknown unknowns *».

There are a number of man - made contributory factors that may have had specific impacts on the atmospheric heating, e.g. local warming in the cities (due to housing, roads, and other resultant factors), smoke and dust over long distances or deforestation of huge forest areas.

And when it lands on glaciers it accelerates their melting... By analysing atmospheric circulation patterns, Dr Marinoni and her colleagues found that winds could bring soot and dust from as far away as Europe, the Middle East and North Africa.

Hubert Lamb, founder of the CRU, identified a major part of the aerosol problem in 1970 when he created the Dust Veil Index (DVI) designed to quantify the impact of volcanic dust on the atmospheric energy balaDust Veil Index (DVI) designed to quantify the impact of volcanic dust on the atmospheric energy baladust on the atmospheric energy balance.

They showed the evidence to 77 domain experts (i.e., atmospheric chemists with expertise in condensation trails, and geochemists working on atmospheric deposition of dust and pollution), and asked about each of the claims made by «SLAP theorists.»

The estimated GST drop due to fine dust from the actual atmospheric nuclear explosions based on the published simulation results by other researchers (a single column model and Atmosphere - Ocean General Circulation Model) has served to explain the stagnation in global warming.

Note that solar energy loss calculations through the air mass do NOT account for reflections off of either high clouds or low clouds or atmospheric dust and turbidity: they are based on «clear sky» conditions regardless of clouds, dust, storms or wind.

Comment: The observed rapid climate change events, «RCCEs» are becoming stronger based on a significant increase in atmospheric dust in both the Antarctic and Greenland ice cores during the last glacial period, as compared to past glacial periods.

The researchers, most of them based at Columbia University's Lamont - Doherty Earth Observatory, say it cements the theory that atmospheric moisture, and thus dust, move in close step with temperature on a global scale; the finding may in turn help inform current ideas to seed oceans with iron - rich dust in order to mitigate global warming.

Its current dust output is essentially transport - limited, but with expected changes in future atmospheric circulation in response to increasing greenhouse gas concentrations, changes to deflation in the Bodélé may impose critical changes on the behavior of the Earth system in response to the role that dust plays in the biosphere and the sheer quantity emitted from this key region.