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An environmentally driven time-integrating water sampler

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dc.creator Selker, John S.
dc.creator Rupp, David E.
dc.date.accessioned 2012-10-03T20:42:22Z
dc.date.available 2012-10-03T20:42:22Z
dc.date.issued 2005
dc.identifier.citation Selker, J. S. and D. E. Rupp (2005), An environmentally driven time-integrating water sampler, Water Resources Research, 41, W09201, doi:10.1029/2005WR004040. en_US
dc.identifier.uri http://hdl.handle.net/1957/34107
dc.description This is the publisher’s final pdf. The published article is copyrighted by American Geophysical Union and can be found at: http://sites.agu.org/. en_US
dc.description.abstract Quality concerns drive many water studies and practices, but obtaining samples from water bodies over time and space for quality determination is often difficult and expensive. We present a low-cost approach that allows integration of water samples over timescales of days to months to allow more widely distributed acquisition of time-integrated samples than possible with previous technology. The device is simply a submerged bottle with a small hole in the lid. In an alternative design the submerged bottle is connected by a tube to a second bottle located outside of the water. In either case, pressure changes inside the sampler arising from natural fluctuations in temperature and atmospheric pressure lead to an accumulation of water in the bottle. For example, when the sampler warms, air escapes the hole, and when it cools, water enters the hole, so with daily variation of 6°C per day the bottle will half fill in 1 month. Laboratory and environmental tests confirm the concept's function. Variants of the design for well sampling and use in deep water are also presented. en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.ispartofseries Water Resources Research en_US
dc.relation.ispartofseries Vol. 41 no. W09201 en_US
dc.subject passive en_US
dc.subject surface water en_US
dc.subject time integrating en_US
dc.subject water sampler en_US
dc.subject well water en_US
dc.title An environmentally driven time-integrating water sampler en_US
dc.type Article en_US
dc.description.peerreview yes en_US
dc.identifier.doi 10.1029/2005WR004040


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