Index Catalog // ScholarsArchive@OSU

A large proportion of North American net ecosystem production is offset by emissions from harvested products, river/stream evasion, and biomass burning

Creator:: Turner, David P., Jacobson, Andrew R., Ritts, William D., Wang, Weile L., and Nemani, Ramakrishna
Abstract:: Diagnostic carbon cycle models produce estimates of net ecosystem production (NEP, the balance of net primary production and heterotrophic respiration) by integrating information from (i) satellite-based observations of land surface vegetation characteristics; (ii) distributed meteorological data; and (iii) eddy covariance flux tower observations of net ecosystem exchange (NEE) (used in...
Resource Type:: Article
Full Text:: I LE L . WANG ‡ and RAMAKRISHNA NEMANI‡ *Department of Forest Ecosystems and Society, Oregon State

Sunlight mediated seasonality in canopy structure and photosynthetic activity of Amazonian rainforests

Creator:: Bi, Jian, Knyazikhin, Yuri, Choi, Sungho, Park, Taejin, Barichivich, Jonathan, Ciais, Philippe, Fu, Rong, Ganguly, Sangram, Hall, Forrest, Hilker, Thomas, Huete, Alfredo, Jones, Matthew, Kimball, John, Lyapustin, Alexei I., Mõttus, Matti, Nemani, Ramakrishna R., Piao, Shilong, Poulter, Benjamin, Saleska, Scott R., Saatchi, Sassan S., Xu, Liang, Zhou, Liming, and Myneni, Ranga B.
Abstract:: Resolving the debate surrounding the nature and controls of seasonal variation in the structure and metabolism of Amazonian rainforests is critical to understanding their response to climate change. In situ studies have observed higher photosynthetic and evapotranspiration rates, increased litterfall and leaf flushing during the Sunlight-rich dry season. Satellite data...
Resource Type:: Article

HilkerThomasForestrySunlightMediatedSeasonalitySupplementaryInfo.pdf

Creator:: Bi, Jian, Knyazikhin, Yuri, Choi, Sungho, Hilker, Thomas, and et al.
Abstract:: Resolving the debate surrounding the nature and controls of seasonal variation in the structure and metabolism of Amazonian rainforests is critical to understanding their response to climate change. In situ studies have observed higher photosynthetic and evapotranspiration rates, increased litterfall and leaf flushing during the Sunlight-rich dry season. Satellite data...
Full Text:: , John Kimball, Alexei I. Lyapustin, Matti Mõttus, Ramakrishna R. Nemani

HilkerForestrySatelliteObservedWidespread.pdf

Creator:: Hilker, Thomas, Natsagdorj, Enkhjargal, Waring, Richard H., Lyapustin, Alexei, and Wang, Yujie
Abstract:: The Mongolian Steppe is one of the largest remaining grassland ecosystems. Recent studies have reported widespread decline of vegetation across the steppe and about 70% of this ecosystem is now considered degraded. Among the scientific community there has been an active debate about whether the observed degradation is related to...
Full Text:: article is protected by copyright. All rights reserved. Myneni, R. B., Ramakrishna, R., Nemani, R

HilkerThomasForestrySatelliteObservedWidespread.pdf

Creator:: Hilker, Thomas, Natsagdorj, Enkhjargal, Waring, Richard H., Lyapustin, Alexei, and Wang, Yujie
Abstract:: The Mongolian Steppe is one of the largest remaining grassland ecosystems. Recent studies have reported widespread decline of vegetation across the steppe and about 70% of this ecosystem is now considered degraded. Among the scientific community there has been an active debate about whether the observed degradation is related to...
Full Text:: Environment, 127, 385–393. Myneni RB, Keeling CD, Tucker CJ, Asrar G, Nemani RR (1997a) Increased plant

Spatial and Temporal Dynamics of Broad-scale Predictive Models : Influences of Scale

Creator:: Hooper, Samuel
Abstract:: Developing accurate predictive distribution models requires adequately representing relevant spatial and temporal scales, as these scales are ultimately reflective of the relationships between distributions and influential environmental conditions. In this research, we considered both spatial and temporal scale and the influence each has on predicting broad-scale distributions of two disparate...
Resource Type:: Masters Thesis
Full Text:: climatic variation at both regional (Bonan 1997) and global scales (Nemani and Running 1995), and

Atmospheric inverse modeling to constrain regional-scale CO₂ budgets at high spatial and temporal resolution

Creator:: Gockede, Mathias, Michalak, Anna M., Vickers, Dean, Turner, David P., and Law, Beverly E.
Abstract:: We present an inverse modeling framework designed to constrain CO2 budgets at regional scales. The approach captures atmospheric transport processes in high spatiotemporal resolution by coupling a mesoscale model with Lagrangian Stochastic backward trajectories. Terrestrial biosphere CO₂ emissions are generated through a simple diagnostic flux model that splits the net...
Resource Type:: Article

Glacier change in a basin of the Peruvian Andes and implications for water resources

Creator:: Burns, Patrick J.
Abstract:: Declines in glacier area and volume are widespread. These changes will have important hydrologic consequences since glaciers store tremendous amounts of fresh water and buffer seasonally low flows in many densely populated regions. In this thesis I focus on a region that is hydrologically vulnerable to glacier change, namely the...
Resource Type:: Masters Thesis

Forestry theses accepted by colleges and universities in the United States : July 1981 - June 1990

Creator:: Fox, M. Anne, 1939-
Abstract:: This is a bibliography of doctoral dissertations and masters' theses in forestry and related topics issued during the period from July 1981 through June 1990. The colleges and universities included are all accredited by the Society of American Foresters. The actual listings were supplied by the individual institutions. Topics covered...
Resource Type:: Book

ScholarsArchive@OSU

A large proportion of North American net ecosystem production is offset by emissions from harvested products, river/stream evasion, and biomass burning

Sunlight mediated seasonality in canopy structure and photosynthetic activity of Amazonian rainforests

HilkerThomasForestrySunlightMediatedSeasonalitySupplementaryInfo.pdf

HilkerForestrySatelliteObservedWidespread.pdf

HilkerThomasForestrySatelliteObservedWidespread.pdf

Spatial and Temporal Dynamics of Broad-scale Predictive Models : Influences of Scale

Atmospheric inverse modeling to constrain regional-scale CO₂ budgets at high spatial and temporal resolution

Glacier change in a basin of the Peruvian Andes and implications for water resources

Forestry theses accepted by colleges and universities in the United States : July 1981 - June 1990

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