Sentences with phrase «dust concentrations»
Figure 2: Monthly mean dust concentration measured at Barbados.
realclimate.org
According to the study's authors, quantifying the amount and sources of atmospheric dust concentrations is also important to improve future climate change predictions.
Atmospheric scientists in Boulder, Colorado, who sent a plane up to measure dust concentrations at every thousand feet detected dust up to 37,000 feet.
In addition, the results showed that dust concentrations during peak periods exceeded World Health Organization (WHO) air quality guidelines.
«The fine - particle dust concentrations exceed the WHO air quality standard and could have broader implications on respiratory health throughout the region, including in the Caribbean and the southeastern United States.»
Recent and past dust concentrations and fluxes from a developing array of Antarctic ice cores.
Other proxy data, such as dust concentration, and snow accumulation, suggest an even more rapid transition, requiring about a 7 °C (13 °F) warming in just a few years.»
Higher dust concentrations can suppress rainfall and enhance drought conditions, by dispersing water among the dust particles, so that water droplets are not heavy enough to fall.
Quite accidentally we discovered that when dust concentrations were high hurricane activity was low and visa versa.
The period of greatest dust concentrations coincided with the time of severe drought in the Sahel.
In observational data, we find striking and globally coherent increases of atmospheric dust concentrations and deposition during the coldest phases of glacial − interglacial climate cycles.
In addition, aerosol, dirt, and dust concentrations are maximized in the lowest layers of the atmosphere when the atmosphere is dominated by sinking air (high pressure).
The study's results suggest the ice sheet hasn't lost as much reflectivity as previously thought, and that black carbon and dust concentrations haven't increased significantly and are thus not responsible for darkening on the upper ice sheet.
The circle in the image shows the position of the dust concentration, in which planets are thought to be formed.
«The dust concentrations measured on Cayenne were far greater than any those of any major European city from pollutants,» said Joseph Prospero, UM Rosenstiel School professor emeritus and lead author of the study.
Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and colleagues analyzed the dust concentrations in aerosol samples from two locations, French Guiana's capital city Cayenne and the Caribbean islands of Guadeloupe, to understand the amount, source regions, and seasonal patterns of airborne dust that travels across the North Atlantic Ocean.
In this regard it is important to note that the dust concentrations over the tropical North Atlantic as implied by the Barbados measurements (Fig. 1) were much greater during the early 1970s than they were during the 1960s or in the later 1970s (Prospero and Nees 1977).