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Filtering by: Alternative title ssim EC 1333-S Remove constraint Alternative title ssim: EC 1333-S Academic Affiliation College of Earth, Ocean, and Atmospheric Sciences Remove constraint Academic Affiliation: College of Earth, Ocean, and Atmospheric Sciences Resource Type Article Remove constraint Resource Type: Article

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Toward biologically meaningful net carbon exchange estimates for tall, dense canopies: Multi-level eddy covariance observations and canopy coupling regimes in a mature Douglas-fir forest in Oregon

Creator:

Thomas, Christoph K., Martin, Jonathan G., Law, Beverly E., and Davis, Kent

Abstract:

We sought to improve net ecosystem exchange (NEE) estimates for a tall, dense, mature Douglas-Fir forest in the Oregon Coast range characterized by weak flows, systematic wind directional shear, and limited turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels and concurrent biological measurements...

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turbulent mixing throughout the diurnal period. We used eddy covariance (EC) observations at two levels
GRACE storage-runoff hystereses reveal the dynamics of regional watersheds

Creator:

Sproles, E. A., Leibowitz, S. G., Reager, J. T., Wigington, P. J., Jr., Famiglietti, J. S., and Patil, S. D.

Abstract:

We characterize how regional watersheds function as simple, dynamic systems through a series of hysteresis loops using measurements from NASA's Gravity Recovery and Climate Experiment (GRACE) satellites. These loops illustrate the temporal relationship between runoff and terrestrial water storage in three regional-scale watersheds (> 150 000 km²) of the Columbia...

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ec ha rg e - D ry se as on se as on - S oil m atr ix dr ain s - G ro un dw ate r d
Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:

Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.

Abstract:

Although there is acute concern that insect-caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand-scale simulations or individual events. This study investigates landscape- and regional-scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...

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outbreaks in conifer forests? Meigs, G. W., Campbell, J. L., Zald, H. S., Bailey, J. D., Shaw, D. C
Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:

Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.

Abstract:

Although there is acute concern that insect‐caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand‐scale simulations or individual events. This study investigates landscape‐ and regional‐scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...

Resource Type:

Article

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outbreaks in conifer forests? Meigs, G. W., Campbell, J. L., Zald, H. S. J., Bailey, J. D., Shaw, D. C
Does wildfire likelihood increase following insect outbreaks in conifer forests?

Creator:

Meigs, Garrett W., Campbell, John L., Zald, Harold S. J., Bailey, John D., Shaw, David C., and Kennedy, Robert E.

Abstract:

Although there is acute concern that insect‐caused tree mortality increases the likelihood or severity of subsequent wildfire, previous studies have been mixed, with findings typically based on stand‐scale simulations or individual events. This study investigates landscape‐ and regional‐scale wildfire likelihood following outbreaks of the two most prevalent native insect pests...

Resource Type:

Article

Full Text:

outbreaks in conifer forests? Meigs, G. W., Campbell, J. L., Zald, H. S. J., Bailey, J. D., Shaw, D. C
A field comparison of multiple techniques to quantify groundwater–surface-water interactions

Creator:

González-Pinzón, Ricardo, Ward, Adam S., Hatch, Christine E., Wlostowski, Adam N., Singha, Kamini, Gooseff, Michael N., Haggerty, Roy, Harvey, Judson W., Cirpka, Olaf A., and Brock, James T.

Abstract:

Groundwater–surface-water (GW-SW) interactions in streams are difficult to quantify because of heterogeneity in hydraulic and reactive processes across a range of spatial and temporal scales. The challenge of quantifying these interactions has led to the development of several techniques, from centimeter-scale probes to whole-system tracers, including chemical, thermal, and electrical...

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SD of specific con- ductivity, σEC ≈ 0.6 μS/cm, indicates the goodness of the fit. It is smaller than
Geochemical evidence in the northeast Lau Basin for subduction of the Cook-Austral volcanic chain in the Tonga Trench

Creator:

Price, Allison A., Jackson, Matthew G., Blichert-Toft, Janne, Blusztajn, Jerzy, Conatser, Christopher S., Konter, Jasper G., Koppers, Anthony A. P., and Kurz, Mark D.

Abstract:

Lau Basin basalts host an array of geochemical signatures that suggest incorporation of enriched mantle source material often associated with intraplate hotspots, but the origin of these signatures remain uncertain. Geochemical signatures associated with mantle material entrained from the nearby Samoan hotspot are present in northwest Lau Basin lavas, and...

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ot op ic co m po si tio ns ar e co rr ec te d to th e La Jo lla va lu e of 0. 51 18 47 .S r
New ⁴⁰Ar/³⁹Ar age progression for the Louisville hot spot trail and implications for inter–hot spot motion

Creator:

Koppers, Anthony A. P., Gowen, Molly D., Colwell, Lauren E., Gee, Jeffrey S., Lonsdale, Peter F., Mahoney, John J., and Duncan, Robert A.

Abstract:

In this study we present 42 new ⁴⁰Ar/³⁹Ar incremental heating age determinations updated age progression for the Louisville seamount trail. Louisville is the South Hawaiian‐Emperor seamount trail, both trails representing intraplate volcanism (~80 Ma to present) and being examples of primary hot spot lineaments. Our age‐progressive trend from 71 to...

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Building, Corvallis, Oregon 97331–5503, USA Jeffrey S. Gee and Peter F. Lonsdale Scripps Institution of
Noble gases and coupled heat/fluid flow modeling for evaluating hydrogeologic conditions of volcanic island aquifers

Creator:

Heilweil, Victor M., Healy, Richard W., and Harris, Robert N.

Abstract:

Understanding groundwater conditions in the upland parts of volcanic island aquifers is critical for sustainable groundwater development in these resource-limited environments. Yet groundwater conditions in such settings are generally difficult to characterize because of sparse well drilling (high cost and/or limited access). Information needed for resource evaluation includes upland depth...

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⇑ Corresponding author. Tel.: +1 801 908 5042; fax E-mail address: heilweil@usgs.gov (V.M. Heilweil) s u m m a r y
Nested scales of spatial heterogeneity in juvenile walleye pollock Theragra chalcogramma in the southeastern Bering Sea

Creator:

Benoit-Bird, Kelly J., McIntosh, Neal E., and Heppell, Scott A.

Abstract:

We sought to characterize the distribution of juvenile walleye pollock Theragra chalcogramma in an area of intense predator-prey interactions and to describe habitat features that lead to their observed distributions. The distribution of juvenile walleye pollock around the Pribilof Islands in the southeastern Bering Sea in 2008 and 2009 was...

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Article

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rate of 1 m s−1, and zooplank- ton captured in the net were immediately preserved in a solution of 5

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Academic Affiliation

College of Earth, Ocean, and Atmospheric Sciences[remove]21
College of Forestry4
Fisheries and Wildlife1
Geosciences1
Integrative Biology1

Creator

Bailey, John D.3
Campbell, John L.3
Kennedy, Robert E.3
Koppers, Anthony A. P.3
Meigs, Garrett W.3
more Creators »

Date

Date range begin – Date range end

Current results range from 2011 to 2019

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Decade

2010-201921

Language

English [eng]21

License

Attribution 3.0 United States7
Attribution 4.0 (CC BY 4.0)3

Non-Academic Affiliation

Oregon State University. Sea Grant College Program2

Peer Reviewed

Yes20

Resource Type

Article[remove]21

Rights Statement

In Copyright16
Copyright Not Evaluated5

Subject

Climatic changes1
Columbia River Watershed1
Ocean acidification1
Streamflow1

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