Sentences with phrase «concentrations on a regional scale»

Reductions in air Hg concentrations on a regional scale have been reported for areas where anthropogenic emissions have been reduced (Kellerhals et al., 2003; Wängberg et al., 2007).

Not exact matches

The new revision 3 (Easterling et al. 1996) data represent the best available data from the United States for analyzing long - term climate trends on a regional scale and may be used for studies attempting to determine the climatic impacts of increased concentrations of greenhouse gases.

Thus, as commented on by one of the mariners taking a sailboat through the NWP, at the regional scale ice located outside the proper ice edge (which may be defined by the 10 or 15 % ice concentration contour) may still present a formidable obstacle to progress with a small vessel.

Langmann, B., and S.E. Bauer, 2002: On the importance of reliable background concentrations of ozone for regional scale photochemical modelling.