Index Catalog // ScholarsArchive@OSU

Creator:: Campbell, John L. and Ager, Alan A.
Abstract:: Fuel reduction treatments prescribed in fire-suppressed forests of western North America pose an apparent paradox with respect to terrestrial carbon management. Such treatments have the immediate effect of reducing forest carbon stocks but likely reduce future carbon losses through the combustion and mortality caused by high-severity wildfires. Assessing the long-term...
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Full Text:: sensitivity analysis John L. Campbell a,*, Alan A. Ager b aDepartment of Forest Ecosystems and Society

Creator:: Mix, Alan C., Tiedemann, R., and Blum, P.
Abstract:: More than 7 km of long and relatively continuous sediment sequences from 11 sites in the southeast and equatorial Pacific were recovered during Leg 202 for the study of the Earth’s climate and biogeochemical systems on scales that range from tectonic (millions of years) to orbital (tens to hundreds of...
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Creator:: Tepley, Alan J., Swanson, Frederick J., and Spies, Thomas A.
Abstract:: Forests dominated by Douglas-fir and western hemlock in the Pacific Northwest of the United States have strongly influenced concepts and policy concerning old-growth forest conservation. Despite the attention to their old-growth characteristics, a tendency remains to view their disturbance ecology in relatively simple terms, emphasizing infrequent, stand-replacing (SR) fire and...
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Full Text:: / western hemlock forests of the Pacific Northwest, USA ALAN J. TEPLEY,1,3 FREDERICK J. SWANSON,2 AND

Creator:: Ortiz, Joseph D., Mix, Alan C., Wheeler, Patricia A., and Key, R. M.
Abstract:: The stable isotopic signature of dissolved inorganic carbon (δ¹³CDIC) in the northeast Pacific Ocean is lower in near-surface waters by 1.1‰ relative to values predicted from global oceanic trends of δ¹³CDIC versus nutrients. A combination of anthropogenic carbon uptake from the atmosphere and thermodynamic, air-sea gas exchange processes in different...
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Full Text:: [Bindoff and McDougall, 1994]. The air-sea disequilibrium method (which is based on the •2C to •3C

Creator:: Mote, Philip W., Hamlet, Alan F., Clark, Martyn P., and Lettenmaier, Dennis P.
Abstract:: In western North America, snow provides crucial storage of winter precipitation, effectively transferring water from the relatively wet winter season to the typically dry summers. Manual and telemetered measurements of spring snow-pack, corroborated by a physically based hydrologic model, are examined here for climate-driven fluctuations and trends during the period...
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Full Text:: WESTERN NORTH AMERICA* BY PHILIP W. MOTE, ALAN F. HAMLET, MARTYN P. CLARK, AND DENNIS P. LETTENMAIER The

Creator:: Russell, Ann D., Emerson, Steven, Mix, Alan C., and Peterson, Larry C.
Abstract:: We examine the utility of the uranium (U) content of planktonic foraminifera tests as an indicator of past changes in seawater U content. The U/Ca ratio in foraminifera from Atlantic and Caribbean cores in constant in the Holocene and decreases by ~25% during the last glacial period. Magnesium/calcium (Mg/Ca) ratios...
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Full Text:: Alan C. Mix College of Oceanography, Oregon State University, Corvallis Larry C. Peterson

Creator:: Mix, Alan C., Morey, Ann E., Pisias, Nicklas G., and Hostetler, Steven W.
Abstract:: The sensitivity of the tropics to climate change, particularly the amplitude of glacial‐to‐interglacial changes in sea surface temperature (SST), is one of the great controversies in paleoclimatology. Here we reassess faunal estimates of ice age SSTs, focusing on the problem of no‐analog planktonic foraminiferal assemblages in the equatorial oceans that...
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Full Text:: problem yields cool ice age tropics Alan C. Mix, Ann E. Morey, and Nicklas G. Pisias College of

Creator:: Tepley, Alan J., Swanson, Frederick J., and Spies, Thomas A.
Abstract:: Early‐seral ecosystems make important contributions to regional biodiversity by supporting high abundance and diversity of many plant and animal species that are otherwise rare or absent from closed‐canopy forests. Therefore, the period of post‐fire tree establishment is a key stage in forest stand and ecosystem development that can be viewed...
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Full Text:: Oregon, USA ALAN J. TEPLEY,1,3,� FREDERICK J. SWANSON,2 AND THOMAS A. SPIES2 1Departments of

Creator:: Mix, Alan C., Le, J., and Shackleton, N. J.
Abstract:: A stable-isotope stratigraphy at Site 846 (tropical Pacific, 3°06'S, 90°49'W, 3307 m water depth), based on the benthic foraminifers Cibicides wuellerstorfi and Uvigerina peregrina, yields a high-resolution record of deep-sea δ¹⁸O and δ¹³C over the past 1.8 Ma, with an average sampling interval of 3 k.y. Variance in the δ¹⁸O...
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Full Text:: species offsets for δ 1 8 θ and δ13C (r = 0.01, n = 75, Fig. 2C). A single anomalous sample exists in

Creator:: Lee, ZhongPing, Weidemann, Alan, Kindle, John, Arnone, Robert, Carder, Kendall L., and Davis, Curtiss
Abstract:: Euphotic zone depth, z[subscript]1%, reflects the depth where photosynthetic available radiation (PAR) is 1% of its surface value. The value of z[subscript]1% is a measure of water clarity, which is an important parameter regarding ecosystems. Based on the Case-1 water assumption, z[subscript]1% can be estimated empirically from the remotely derived...
Resource Type:: Article
Full Text:: remote sensing ZhongPing Lee,1 Alan Weidemann,1 John Kindle,1 Robert Arnone,1 Kendall L. Carder,2 and

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