Practical considerations for addressing uncertainties in monitoring bulk deposition
Dammgen, Ulrich; Erisman, Jan Willem; Cape, J. Neil; Grunhage, Ludger; Fowler, David. 2005 Practical considerations for addressing uncertainties in monitoring bulk deposition. Environmental Pollution, 134 (3). 535-548. 10.1016/j.envpol.2004.08.013Full text not available from this repository.
The assessment of the deposition of both wet (rain and cloud) and dry sedimenting particles is a prerequisite for estimating element fluxes in ecosystem research. Many nations and institutions operate deposition networks using different types of sampler. However, these samplers have rarely been characterized with respect to their sink properties. Major errors in assessing bulk deposition can result from poor sampling properties and defective sampling strategies. Relevant properties are: sampler geometry and material, in particular the shape of the rim; sink properties for gases and aerosols; and microbial transformations of the collected samples. An adequate number of replicates allows the identification of samples which are contaminated, in particular by bird droppings. The paper discusses physical and chemical properties of the samplers themselves. The dependence of measurement accuracy on the number of replicates and the sampling area exposed is discussed. Recommendations are given for sampling strategies, and for making corrections and substitution of missing data. Recommendations are given for sampling strategies and for making corrections and substitution of missing data.
|Programmes:||CEH Programmes pre-2009 publications > Biogeochemistry > BG01 Measuring and modelling trace gas, aerosol and carbon > BG01.1 UK nitrogen and sulphur compounds|
|CEH Sections:||_ Atmospheric Sciences|
|Additional Keywords:||Wet deposition, Sampling artefacts, Precipitation sampling|
|NORA Subject Terms:||Meteorology and Climatology
Ecology and Environment
|Date made live:||09 Sep 2008 14:19|
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