Index Catalog // ScholarsArchive@OSU

Creator:: DeBell, Thomas C., Goertzen, Luke, Selker, John, and Udell, Chet
Abstract:: Research in geoscience often requires transmission of significant amounts of data from remote locations. The emergence of microcontrollers and open-source sensors are allowing connectivity to affordable, distributed in-situ monitoring. This report describes the OPEnS Hub, a modular data hub orders of magnitude cheaper than commercial dataloggers when scaled to multiple...
Resource Type:: Poster

Creator:: Hilgersom, Koen, van Emmerik, Tim, Solcerova, Anna, Berghuijs, Wouter, Selker, John, and van de Giesen, Nick
Abstract:: Fibre optic distributed temperature sensing (DTS) is widely applied in Earth sciences. Many applications require a spatial resolution higher than that provided by the DTS instrument. Measurements at these higher resolutions can be achieved with a fibre optic cable helically wrapped on a cylinder. The effect of the probe construction,...
Resource Type:: Article

Creator:: van de Giesen, Nick, Steele-Dunne, Susan C., Jansen, Jop, Hoes, Olivier, Hausner, Mark B., Tyler, Scott, and Selker, John
Abstract:: Over the past five years, Distributed Temperature Sensing (DTS) along fiber optic cables using Raman backscattering has become an important tool in the environmental sciences. Many environmental applications of DTS demand very accurate temperature measurements, with typical RMSE < 0.1 K. The aim of this paper is to describe and...
Resource Type:: Article

Creator:: Oregon State University. Extension Service, Selker, John, and Rupp, David Earl
Abstract:: Directly below commercial mint fields, percolation in excess of 10 ppm of nitrogen as nitrate (NO3 --N), the EPA drinking water standard, occurs for much of the year (Figure 1, page 2). Concentrations rise rapidly after irrigation starts in June, indicating that this nitrogen is being pushed through by irrigation...
Resource Type:: Technical Report

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