Sentences with phrase «planetary boundary layer»

Finds that the intensified deficit in precipitation is accompanied by increased downward shortwave radiation flux, tropospheric subsidence, enhanced evaporative fraction, and elevated planetary boundary layer height, all of which can lead to surface drying

«Every day, more than 800 million viruses are deposited per square metre above the planetary boundary layer — that's 25 viruses for each person in Canada,» said University of British Columbia virologist Curtis Suttle, one of the senior authors of a paper in the International Society for Microbial Ecology Journal that outlines the findings.

These SCIAMACHY observations were backscattered sunlight observations and have good sensitivity to the planetary boundary layer.

In the macroturbulent simulation, there is no subgrid - scale diffusion of heat or momentum above the planetary boundary layer.

Within the planetary boundary layer, in situ instrumentation includes towers, tethered balloons, and surface data collection platforms.

We apply a globally uniform threshold to the AGCM, and model subgrid fluctuations in wind speed using information from the AGCM's parameterizations of the planetary boundary layer, along with dry and moist convection.

The focus of evaluating AGCMs has been on large - scale dynamics and certain meteorological variables; far less so on the partitioning of sensible and latent heat flux, or the moisture content of the planetary boundary layer.

Perlwitz et al. (2001) estimate that this feedback reduces the global dust load by roughly 15 %, as dust radiative forcing reduces the downward mixing of momentum within the planetary boundary layer, the surface wind speed, and thus dust emission (Miller et al., 2004a).

Second - order turbulence models of the Mellor and Yamada type have been widely used to simulate the planetary boundary layer (PBL).