Index Catalog // ScholarsArchive@OSU

Lidar-derived canopy architecture predicts brown creeper occupancy of two western coniferous forests

Creator:: Vogeler, Jody C., Hudak, Andrew T., Vierling, Lee A., and Vierling, Kerri T.
Abstract:: In western conifer-dominated forests where the abundance of old-growth stands is decreasing, species such as the Brown Creeper (Certhia americana) may be useful as indicator species for monitoring the health of old-growth systems because they are strongly associated with habitat characteristics associated with old growth and are especially sensitive to...
Resource Type:: Article
Full Text:: OCCUPANCY OF TWO WESTERN CONIFEROUS FORESTS JODY C. VOGELER1,4, ANDREW T. HUDAK2, LEE A. VIERLING3, AND

Deploying initial attack resources for wildfire suppression: spatial coordination, budget constraints, and capacity constraints

Creator:: Lee, Yohan, Fried, Jeremy S., Albers, Heidi J., and Haight, Robert G.
Abstract:: We combine a scenario-based, standard-response optimization model with stochastic simulation to improve the efficiency of resource deployment for initial attack on wildland fires in three planning units in California. The optimization model minimizes the expected number of fires that do not receive a standard response-defined as the number of resources...
Resource Type:: Article
Full Text:: constraints Yohan Lee, Jeremy S. Fried, Heidi J. Albers, and Robert G. Haight Abstract:We combine a scenario

The plant phenology monitoring design for The National Ecological Observatory Network

Creator:: Elmendorf, Sarah C., Jones, Katherine D., Cook, Benjamin I., Diez, Jeffrey M., Enquist, Carolyn A. F., Hufft, Rebecca A., Jones, Matthew O., Mazer, Susan J., Miller-Rushing, Abraham J., Moore, David J. P., Schwartz, Mark D., and Weltzin, Jake F.
Abstract:: Phenology is an integrative science that comprises the study of recurring biological activities or events. In an era of rapidly changing climate, the relationship between the timing of those events and environmental cues such as temperature, snowmelt, water availability, or day length are of particular interest. This article provides an...
Resource Type:: Article
Full Text:: Matthew O. Jones,8 Susan J. Mazer,9 Abraham J. Miller-Rushing,10 David J. P. Moore,11 Mark D. Schwartz

Calculating CO2 and H2O eddy covariance fluxes from an enclosed gas analyzer using an instantaneous mixing ratio

Creator:: Burba, George, Schmidt, Andres, Scott, Russell L., Nakai, Taro, Kathilankal, James, Fratini, Gerardo, Hanson, Chad, Law, Beverly, McDermitt, Dayle K., Eckles, Robert, Furtaw, Michael, and Velgersdyk, Michael
Abstract:: Eddy covariance flux research has relied on open- or closed-path gas analyzers for producing estimates of net ecosystem exchange of carbon dioxide (CO₂) and water vapor (H₂O). The two instruments have had different challenges that have led to development of an enclosed design that is intended to maximize strengths and...
Resource Type:: Article
Full Text:: in some situations, especially when measuring in fluctuating pressure fields (Lee & Massman, 2011

Eddy covariance measurements with a new fast-response, enclosed-path analyzer: Spectral characteristics and cross-system comparisons

Creator:: Novick, K. A., Walker, J., Chan, W.S., Schmidt, A., Sobek, C., and Vose, J. M.
Abstract:: A new class of enclosed path gas analyzers suitable for eddy covariance applications combines the advantages of traditional closed-path systems (small density corrections, good performance in poor weather) and open-path systems (good spectral response, low power requirements), and permits estimates of instantaneous gas mixing ratio. Here, the extent to which...
Resource Type:: Article
Full Text:: comparisons E e c K a b c d a A R R A K E S D I C O 1 fl h o t c t e e a 0 h Agricultural and

On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums

Creator:: Ryu, Youngryel, Baldocchi, Dennis D., Black, T. Andrew, Detto, Matteo, Law, Beverly E., Leuning, Ray, Miyata, Akira, Reichstein, Markus, Vargas, Rodrigo, Ammann, Christof, Beringer, Jason, Flanagan, Lawrence B., Gu, Lianhong, Hutley, Lindsay B., Kim, Joon, McCaughey, Harry, Moors, Eddy J., Rambal, Serge, and Vesala, Timo
Abstract:: The regular monitoring of evapotranspiration from satellites has been limited because of discontinuous temporal coverage, resulting in snapshots at a particular point in space and time. We developed a temporal upscaling scheme using satellite-derived instantaneous estimates of evapotranspiration to produce a daily-sum evapotranspiration averaged over an 8-day interval. We tested...
Resource Type:: Article
Full Text:: mean daily-sums O s Y R L , a b c d e f g h i j k l m n o p q r s a A R R A K

An interdisciplinary framework for evaluating 19th century landscape paintings for ecological research

Creator:: Warren, Dana R., Loeb, Harper M., Betjemann, Peter, Munck, Isabel A., Keeton, William S., Shaw, David C., and Harvey, Eleanor J.
Abstract:: As we contemplate the future of forest landscapes under changing climate conditions and land-use demands, there is increasing value in studying historic forest conditions and how these landscapes have changed following past disturbances. Historic landscape paintings are a potential source of data on preindustrial forests with highly detailed, full-color depictions...
Resource Type:: Article
Full Text:: ://esajournals.onlinelibrary.w iley.com /doi/10.1002/ecs2.4649 by O regon State U niversity, W iley O nline Library on [10/09

Use of change-point detection for friction–velocity threshold evaluation in eddy-covariance studies

Creator:: Barr, A. G., Richardson, A. D., Hollinger, D. Y., Papale, D., Arain, M. A., Black, T. A., Bohrer, G., Dragoni, D., Fischer, M. L., Gu, L., Law, B. E., Margolis, H. A., McCaughey, J. H., Munger, J. W., Oechel, W., and Schaeffer, K.
Abstract:: The eddy-covariance method often underestimates fluxes under stable, low-wind conditions at night when turbulence is not well developed. The most common approach to resolve the problem of nighttime flux underestimation is to identify and remove the deficit periods using friction-velocity (u*) threshold filters (u*[superscript Th]). This study modifies an accepted...
Resource Type:: Article
Full Text:: A D W a b c d e f g h i j k l m n o p a A R R A K E F U C , 0 h Agricultural

Empirical assessment of uncertainties of meteorological parameters and turbulent fluxes in the AmeriFlux network

Creator:: Schmidt, Andres, Hanson, Chad, Chan, W. Stephen, and Law, Beverly E.
Abstract:: Terrestrial ecosystem-atmosphere exchange of carbon, water vapor, and energy has been measured for over a decade at many sites globally. To minimize measurement and analysis errors, quality assurance data have been collected over short periods along-side tower instruments at AmeriFlux research sites. Theoretical and empirical error and uncertainty values have...
Resource Type:: Article
Full Text:: such as the stochastic nature of turbu- lence, unmet assumptions (e.g., horizontal advection [Lee, 1998

New North American truffles (Tuber spp.) and their ectomycorrhizal associations

Creator:: Guevara, Gonzalo, Bonito, Gregory, Trappe, James M., Cazares, Efren, Williams, Gwendolyn, Healy, Rosanne A., Schadt, Christopher, and Vilgalys, Rytas
Abstract:: Recent surveys of belowground fungal biodiversity in Mexico and USA have revealed many undescribed truffle species, including many in the genus Tuber. Here we describe seven new species: Tuber beyerlei, T. castilloi, T. guevarai, T. lauryi, T. mexiusanum, T. miquihuanense and T. walkeri. Phylogenetic analyses place these species within the...
Resource Type:: Article
Full Text:: . canaliculatum Gilkey g, p T. candidum Harknessf, o, p T. castellanoi Bonito & Trappec, p *T. castilloi

ScholarsArchive@OSU

Lidar-derived canopy architecture predicts brown creeper occupancy of two western coniferous forests

Deploying initial attack resources for wildfire suppression: spatial coordination, budget constraints, and capacity constraints

The plant phenology monitoring design for The National Ecological Observatory Network

Calculating CO2 and H2O eddy covariance fluxes from an enclosed gas analyzer using an instantaneous mixing ratio

Eddy covariance measurements with a new fast-response, enclosed-path analyzer: Spectral characteristics and cross-system comparisons

On the temporal upscaling of evapotranspiration from instantaneous remote sensing measurements to 8-day mean daily-sums

An interdisciplinary framework for evaluating 19th century landscape paintings for ecological research

Use of change-point detection for friction–velocity threshold evaluation in eddy-covariance studies

Empirical assessment of uncertainties of meteorological parameters and turbulent fluxes in the AmeriFlux network

New North American truffles (Tuber spp.) and their ectomycorrhizal associations

Limit your search

Academic Affiliation

Creator

Date

Decade

File Format

Language

License

Peer Reviewed

Resource Type

Rights Statement

Search Constraints

Search Results

Limit your search