This study evaluates the potential impact of clouds on ecosystem CO2 and CO2 isotope fluxes (“isofluxes”) in two contrasting ecosystems (a broadleaf deciduous forest and a C4 grassland) in a region for which cloud cover, meteorological, and isotope data are available for driving the isotope‐enabled land surface model (ISOLSM). …
Journal: Journal Of Geophysical Research, Volume 114 (G1): (2009), ISBN . DOI: http://doi.org/10.1029/2007JG000675 Sites: US-ARM
Characterizing net ecosystem exchanges (NEE) of CO2 and sensible and latent heat fluxes in heterogeneous landscapes is difficult, yet critical given expected changes in climate and land use. We report here a measurement and modeling study designed to improve our understanding of surface to atmosphere gas exchanges under very heterogeneous …
Journal: Journal Of Geophysical Research, Volume 114 (G4): (2009), ISBN . DOI: http://doi.org/10.1029/2009JG001003 Sites: US-ARM
Journal: Water Resources Research, Volume 45 (4): (2009), ISBN . DOI: 10.1029/2008WR007045 Sites: US-Rwe
Journal: Agricultural And Forest Meteorology, Volume 149 (9): 1531-1540 (2009), ISBN . DOI: 10.1016/j.agrformet.2009.04.006 Sites: US-UMB
Journal: Biogeochemistry, Volume 95 (1): 61-76 (2009), ISBN . DOI: 10.1007/s10533-009-9325-9 Sites: US-NR1, US-NR3, US-NR4
Recent studies have illuminated the process of hydraulic redistribution, defined as the translocation of soil moisture via plant root systems, but the long-term ecohydrologic significance of this process is poorly understood. We investigated hydraulic redistribution (HR) by Prosopis velutina Woot. (velvet mesquite) in an …
Journal: Water Resources Research, Volume 44 (W02440): n/a-n/a (2008), ISBN . DOI: 10.1029/2007wr006149 Sites: US-SRM
Tundra-atmosphere exchanges of carbon dioxide (CO2) and water vapour were measured near Daring Lake, Northwest Territories in the Canadian Low Arctic for 3 years, 2004–2006. The measurement period spanned late-winter until the end of the growing period. Mean temperatures during the measurement period varied from about …
Journal: Global Change Biology, Volume 14 (4): 740-756 (2008), ISBN . DOI: 10.1111/j.1365-2486.2007.01529.x Sites: CA-DL1
Validation comparisons between satellite-based surface energy balance models and tower-based flux measurements over heterogeneous landscapes can be strongly influenced by the spatial resolution of the remote sensing inputs. In this paper, a two-source energy balance model developed to use thermal and visible /near-infrared remotely …
Journal: Remote Sensing Of Environment, Volume 112 (2): 337-349 (2008), ISBN . DOI: 10.1016/j.rse.2006.11.032 Sites: US-Whs, US-Wkg
Forest soils are important components of the global carbon cycle because they both store and release carbon. Carbon dioxide is released from soil to the atmosphere as a result of plant root and microbial respiration. Additionally, soils in dry forests are often sinks of methane from the atmosphere. Both carbon dioxide and methane …
Journal: Forest Ecology And Management, Volume 255 (12): 4047-4055 (2008), ISBN . DOI: 10.1016/j.foreco.2008.03.051 Sites: US-Fmf, US-Fuf
Journal: San Francisco Estuary And Watershed Science, Volume 6 (3): n/a-n/a (2008), ISBN . DOI: 10.15447/sfews.2008v6iss3art1 Sites: US-Tw1