Browsing Faculty of Arts and Sciences by Author "Dunn, Allison L."

Now showing items 1-4 of 4

    • High sensitivity of peat decomposition to climate change through water-table feedback 

      Ise, Takeshi; Dunn, Allison L.; Wofsy, Steven; Moorcroft, Paul (Nature Publishing Group, 2008)
      Historically, northern peatlands have functioned as a carbon sink, sequestering large amounts of soil organic carbon, mainly due to low decomposition in cold, largely waterlogged soils. The water table, an essential ...

    • A Satellite-based Biosphere Parameterization for Net Ecosystem CO2 Exchange: Vegetation Photosynthesis and Respiration Model (VPRM) 

      Mahadevan, Pathmathevan; Wofsy, Steven C.; Matross, Daniel M.; Xiao, Xiangming; Dunn, Allison L.; Lin, John C.; Gerbig, Christoph; Munger, J. William; Chow, Victoria Ye; Gottlieb, Ellaine W. (American Geophysical Union, 2008)
      We present the Vegetation Photosynthesis and Respiration Model (VPRM), a satellite-based assimilation scheme that estimates hourly values of Net Ecosystem Exchange (NEE) of CO2 for 12 North American biomes using the Enhanced ...

    • Seasonal Controls on the Exchange of Carbon and Water in an Amazonian Rain Forest 

      Hutyra, Lucy R.; Munger, J. William; Saleska, Scott R.; Gottlieb, Ellaine W.; Daube, Bruce C.; Dunn, Allison L.; Amaral, Daniel F.; de Camargo, Plinio B.; Wofsy, Steven C. (American Geophysical Union, 2007)
      The long-term resilience of Amazonian forests to climate changes and the fate of their large stores of organic carbon depend on the ecosystem response to climate and weather. This study presents 4 years of eddy covariance ...

    • Variations in Atmospheric \(CO_2\) Mixing Ratios across a Boston, MA Urban to Rural Gradient 

      Briber, Brittain M.; Hutyra, Lucy R.; Dunn, Allison L.; Raciti, Steve M.; Munger, J. William (MDPI AG, 2013)
      Urban areas are directly or indirectly responsible for the majority of anthropogenic \(CO_2\) emissions. In this study, we characterize observed atmospheric \(CO_2\) mixing ratios and estimated \(CO_2\) fluxes at three ...