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Observed Covariance Between Ecosystem Carbon Exchange And Atmospheric Boundary Layer Dynamics At A Site In Northern Wisconsin

by Fianna O'Brien - January 27, 2017

Ecosystem CO2 exchange and atmosphere boundary layer (ABL) mixing are correlated diurnally and seasonally as they are both driven by solar insulation. Tracer transport models predict that these covariance signals… More

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The Impact Of Forest Structure On Near-Ground Temperatures During Two Years Of Contrasting Temperature Extremes

by Fianna O'Brien - January 27, 2017

The thermal environment of clear-cut, partially cut, and uncut forest sites in northern Wisconsin are examined for a warm year and a cool year. Temperatures at 0.5 m above and 0.05 m… More

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Measurements Of PAR Transmittance Within Boreal Forest Stands During BOREAS

by Fianna O'Brien - January 27, 2017

This paper shows the results of solar flux measurements routinely collected within boreal conifer forests during BOREAS 1994. Such vegetation have open canopies with a high level of clumping and… More

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The Impact Of Induced Drought On Transpiration And Growth In A Temperate Pine Plantation Forest

by Fianna O'Brien - January 27, 2017

The effects of early growing season droughts on water and carbon balances in conifer forests are poorly understood. In this study, the response of canopy transpiration (Ec) and growth rates… More

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Partitioning Of Water Flux In A Sierra Nevada Ponderosa Pine Plantation

by Fianna O'Brien - January 27, 2017

The weather patterns of the west side of the Sierra Nevada Mountains (cold, wet winters and hot, dry summers) strongly influence how water is partitioned between transpiration and evaporation and… More

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Pulse Emissions Of Carbon Dioxide During Snowmelt At A High-Elevation Site In Northern Arizona, U.S.A.

by Fianna O'Brien - January 27, 2017

The paradigm that winter is a dormant period of soil biogeochemical activity in high elevation or high latitude ecosystems has been amply refuted by recent research. Carbon dioxide (CO2) released… More

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A Multiscale And Multidisciplinary Investigation Of Ecosystem–Atmosphere CO2 Exchange Over The Rocky Mountains Of Colorado

by Fianna O'Brien - January 27, 2017

A significant fraction of Earth consists of mountainous terrain. However, the question of how to monitor the surface–atmosphere carbon exchange over complex terrain has not been fully explored. This article… More

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Seasonal Hydrology Explains Interannual And Seasonal Variation In Carbon And Water Exchange In A Semiarid Mature Ponderosa Pine Forest In Central Oregon

by Fianna O'Brien - January 27, 2017

We analyzed 7 years (2002–2008) of micrometeorological and concurrent biological observations of carbon and water fluxes at a mature ponderosa pine forest in central Oregon in a semiarid climate. We… More

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Ecosystem-Level CO2 Fluxes From A Boreal Cutover In Eastern Canada Before And After Scarification

by Fianna O'Brien - January 27, 2017

Carbon (C) cycling in the boreal forest is driven by both natural and human disturbances, but there is little information on the impact of forest management practices on ecosystem-level C… More

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Leaf Area Index Measurements At Fluxnet-Canada Forest Sites

by Fianna O'Brien - January 27, 2017

Leaf area index (LAI) measurements made at 17 forest sites of the Fluxnet Canada Research Network are reported here. In addition to LAI, we also report other major structural parameters… More

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