The analysis focuses on concentrations rather than the total metal mass budget, because it is qpically variations in metal concentrations that are important for assessing potential environmental impacts. In facL much of the spatial variabiliq within the stream segment appears to be random, although a dimensionless shear stress model predicts the majoriq of locations where peak concentrations of metals contained in heavy minerals occur. The dimensionless shear stress model, however, only predicus the potential for enrichment and many sites where potential enrichment is predicted contain low concentrations of metals. Peak concentrations do not appear to be associated with metal-rich sediment waves moving through the system, but instead are probably the result of local hydraulic variabiliq. Sampling of boulder and cobble streams should be stratified by hydraulic environmenus in order to capture the full range of minimum and maximum metal concentrations within the stream system.
Emphasis is given to shortwave radiation components.
Results from this and other investigations of radiation in the Himalaya confirm remarkably consistent high transmissivities with low atmospheric turbidities. Seasonal cloudiness, elevation, and solar position appear to be the primary cause of changing global radiation in the region. Changes of local weather at Tilicho Lake, accompanied by snow flurries and subsequent snow melts, resulted in constanfly changing albedos and highly variable longwave and net radiation values throughout most days. Makalu-Barun National Park and Conservation Area, Nepal, are presented. Historical religious texts suggest that pilgrims may have been visiting sacred sites in the valley since the 14th century.