Index Catalog // ScholarsArchive@OSU

Interactive visual analysis promotes exploration of long-term ecological data

Creator:: Pham, Tuan, Jones, Julia A., Metoyer, Ronald, Swanson, Frederick, and Pabst, Robert
Abstract:: Long-term ecological data are crucial in helping ecologists understand ecosystem function and environmental change. Nevertheless, these kinds of data sets are difficult to analyze because they are usually large, multivariate, and spatiotemporal. Although existing analysis tools such as statistical methods and spreadsheet software permit rigorous tests of pre-conceived hypotheses and...
Resource Type:: Article
Full Text:: of long-term ecological data Interactive visual analysis promotes exploration of long-term

Uncertainty analysis: an evaluation metric for synthesis science

Creator:: Harmon, Mark E., Fasth, Becky, Halpern, Charles B., and Lutz, James A.
Abstract:: The methods for conducting reductionist ecological science are well known and widely used. In contrast, those used in the synthesis of ecological science (i.e., synthesis science) are still being developed, vary widely, and often lack the rigor of reductionist approaches. This is unfortunate because the synthesis of ecological parts into...
Resource Type:: Article
Full Text:: . Ecosphere, 6(4), art63. doi:10.1890/ES14-00235.1 10.1890/ES14-00235.1 Ecological Society of America

Viewing forests through the lens of complex systems science

Creator:: Filotas, Elise, Parrott, Lael, Burton, Philip J., Chazdon, Robin L., Coates, K. David, Coll, Lluis, Haeussler, Sybille, Martin, Kathy, Nocentini, Susanna, Puettmann, Klaus J., Putz, Francis E., Simard, Suzanne W., and Messier, Christian
Abstract:: Complex systems science provides a transdisciplinary framework to study systems characterized by (1) heterogeneity, (2) hierarchy, (3) self‐organization, (4) openness, (5) adaptation, (6) memory, (7) non‐linearity, and (8) uncertainty. Complex systems thinking has inspired both theory and applied strategies for improving ecosystem resilience and adaptability, but applications in forest ecology...
Resource Type:: Article
Full Text:: Ecological Research and Forestry Applications (CREAF), Autonomous University of Barcelona, Bellaterra 08193

Bed conduction impact on fiber optic distributed temperature sensing water temperature measurements

Creator:: O'Donnell Meininger, T. and Selker, J. S.
Abstract:: Error in distributed temperature sensing (DTS) water temperature measurements may be introduced by contact of the fiber optic cable sensor with bed materials (e.g., seafloor, lakebed, streambed). Heat conduction from the bed materials can affect cable temperature and the resulting DTS measurements. In the Middle Fork John Day River, apparent...
Resource Type:: Article
Full Text:: J. S. Selker Oregon State University, Department of Biological and Ecological Engineering

Thermal-plume fibre optic tracking (T-POT) test for flow velocity measurement in groundwater boreholes

Creator:: Bense, V. F, Hochreutener, R., Bour, O., Le Borgne, T., Lavenant, N., and Selker, J. S.
Abstract:: We develop an approach for measuring in-well fluid velocities using point electrical heating combined with spatially and temporally continuous temperature monitoring using distributed temperature sensing (DTS). The method uses a point heater to warm a discrete volume of water. The rate of advection of this plume, once the heating is...
Resource Type:: Article
Full Text:: , University of Rennes 1, Rennes, France 4Biological and Ecological Engineering, Oregon State University

Practical considerations for enhanced-resolution coil-wrapped distributed temperature sensing

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
Full Text:: Nick van de Giesen1 1Water Resources Section, Faculty of Civil Engineering and Geosciences, Delft

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Creator:: Liu, Z and Higgins, C. W.
Abstract:: Submersible pressure transducers have been utilized for collecting water level data since the early 1960s. Together with a digital data logger, it is a convenient way to record water level fluctuations for long-term monitoring. Despite the wide use of pressure transducers for water level monitoring, little has been reported regarding...
Resource Type:: Article
Full Text:: Department of Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon, 97331, USA

A new instrument to measure plot-scale runoff

Creator:: Stewart, R. D., Liu, Z., Rupp, D. E., Higgins, C. W., and Selker, J. S.
Abstract:: Accurate measurement of the amount and timing of surface runoff at multiple scales is needed to understand fundamental hydrological processes. At the plot scale (i.e., length scales on the order of 1–10 m) current methods for direct measurement of runoff either store the water in a collection vessel, which is...
Resource Type:: Article
Full Text:: 2Biological & Ecological Engineering Department, Oregon State University, Corvallis, OR, USA 3Oregon Climate

A new instrument to measure plot-scale runoff

Creator:: Stewart, R. D., Liu, Z., Rupp, D. E., Higgins, C. W., and Selker, J. S.
Abstract:: Accurate measurement of the amount and timing of surface runoff at multiple scales is needed to understand fundamental hydrological processes. At the plot-scale (i.e., length scales on the order of 1 to 10 m) current methods for direct measurement of runoff either store the water in a collection vessel, which...
Resource Type:: Article
Full Text:: State University, Blacksburg, VA, USA 2Biological & Ecological Engineering Department, Oregon State

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

Creator:: Liu, Z. and Higgins, C. W.
Abstract:: Submersible pressure transducers have been utilized for collecting water level data since early 1960s. Together with a digital datalogger, it is a convenient way to record water level fluctuations for long-term monitoring. Despite the widely use of pressure transducers for water level monitoring, little has been reported for their accuracy...
Resource Type:: Article
Full Text:: Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon 97331, USA Received: 2

ScholarsArchive@OSU

Interactive visual analysis promotes exploration of long-term ecological data

Uncertainty analysis: an evaluation metric for synthesis science

Viewing forests through the lens of complex systems science

Bed conduction impact on fiber optic distributed temperature sensing water temperature measurements

Thermal-plume fibre optic tracking (T-POT) test for flow velocity measurement in groundwater boreholes

Practical considerations for enhanced-resolution coil-wrapped distributed temperature sensing

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

A new instrument to measure plot-scale runoff

A new instrument to measure plot-scale runoff

Does temperature affect the accuracy of vented pressure transducer in fine-scale water level measurement?

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