Results 261 to 270 of about 1,378,855 (300)
Some of the next articles are maybe not open access.
Alpine Glaciers as Archives of Atmospheric Deposition
2009Alpine glaciers are natural archives of past precipitation. At high elevations where melting is negligible and precipitation occurs as snow throughout the year the manifold information contained in the annual snow layers is well preserved. This information is accessed by ice core drilling and analyses.
Schwikowski, M., Eichler, A.
openaire +2 more sources
Atmospheric deposition in complex forest landscapes
Boundary-Layer Meteorology, 1994Atmospheric dry deposition in eight forest edges was estimated by means of throughfall and bulk precipitation measurements. Dry deposition was found to be enhanced in the first 5 edge heights. Deposition enhancement was strongly dependent on forest density, edge aspect and on the gas or particle under consideration.
Draaijers, GPJ +2 more
openaire +2 more sources
Atmospheric Deposition Processes
1993Dry, wet, and occult (cloud drop) deposition all contribute to the removal of compounds from the atmosphere. Many atmospheric species undergo chemical and physical transformations which affect their removal rates. Deposition rates depend on the nature of both the compounds and the surfaces at which they deposit.
openaire +1 more source
Atmospheric deposition of nutrients to the North Atlantic Basin
Biogeochemistry, 1996Atmospheric chemical models are used to estimate the deposition rate of various inorganic oxides of nitrogen (NOy), reduced nitrogen species (NHx) and mineral dust to the North Atlantic Ocean (NAO). The estimated deposition of NOy to the NAO (excluding the coastal ocean) and the Caribbean is 360 × 109 Moles-N m-2 yr-1 (5.0 Tg N); this is equivalent to ...
Prospero, J.M. +8 more
openaire +2 more sources
Forest canopy transformation of atmospheric deposition
Water, Air, and Soil Pollution, 1988Solute fluxes to the ground in open plots and under the forest canopy of different species were investigated in a number of long-term ecosystem studies in West Germany. From the canopy flux balance, rates of interception deposition and canopy/deposition interactions were assessed. Chemically, both open precipitation and throughfall are dilute solutions
openaire +1 more source
The national atmospheric deposition program
Applied Geochemistry, 1995A total number of 1165 stream water and 1172 lake water samples were collected in two different projects in the autumns of 1990 and 1987, respectively. The sampling points in streams were determined to include a drainage area of ca 30 km2. The lakes were selected to represent the lakes in the size range of 0.01–10 km2.
Pertti Lahermo +2 more
openaire +1 more source
Atmospheric deposition sampler intercomparison
Water, Air, and Soil Pollution, 1988Two wet/dry atmospheric deposition sampler types were compared for 1 yr. The resistance required to open each of ten collectors was determined. Additionally, the opening and closing history of each sampler was recorded using a microdatalogger with a resolution of 1 min.
RichardC. Graham +2 more
openaire +1 more source
Atmospheric deposition of 7Be and 10Be
Geochimica et Cosmochimica Acta, 1989Measurements of {sup 10}Be in precipitation taken in Hawaii, Illinois and New Jersey over a period of five years are reported. The problem of contamination by the isotope being resuspended on wind blown soil that is also collected is addressed. Rain collected at Mauna Loa, Hawaii has such low values of dust contamination that it has been taken as clean,
Louis Brown +3 more
openaire +1 more source
Atmospheric Chemistry and Deposition
2001The two most significant elements with atmospheric components that influence ecological processes at Niwot Ridge are carbon (C) and nitrogen (N). The enrichment of the atmosphere by carbon dioxide (CO2) is ubiquitous across the globe. Global and regional patterns of the annual increases in atmospheric CO2 as well as the current and anticipated ...
openaire +1 more source
The atmospheric microplastics deposition contributes to microplastic pollution in urban waters
Water Research, 2022Xiaohu Dai, Bing-Jie Ni, Weng Fu
exaly