Many monoterpenes have been identified in forest emissions using gas chromatography (GC). Until now, it has been impossible to determine whether all monoterpenes are appropriately measured using GC techniques. We used a proton transfer reaction mass spectrometer (PTR-MS) coupled with the eddy covariance (EC) technique to measure …
Journal: Atmospheric Chemistry And Physics, Volume 5 (2): 505-513 (2005), ISBN . DOI: 10.5194/acp-5-505-2005 Sites: US-Blo
Observed responses of upland-oak vegetation of the eastern deciduous hardwood forest to changing CO2, temperature, precipitation and tropospheric ozone (O3) were derived from field studies and interpreted with a stand-level model for an 11-year range of environmental variation upon which scenarios of future …
Journal: Global Change Biology, Volume 11 (9): 1402-1423 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.00991.x Sites: US-WBW
Understanding links between the disturbance regime and regional climate in boreal regions requires observations of the surface energy budget from ecosystems in various stages of secondary succession. While several studies have characterized fire-induced differences in surface energy fluxes from boreal ecosystems during summer months, …
Journal: Journal Of Geophysical Research, Volume 110 (D13): n/a-n/a (2005), ISBN . DOI: 10.1029/2004jd005158 Sites: US-Bn1, US-Bn2, US-Bn3
A unique dataset obtained with combinations of minisodars and 915-MHz wind profilers at the Atmospheric Boundary Layer Experiments (ABLE) facility in Kansas was used to examine the detailed characteristics of the nocturnal low-level jet (LLJ). In contrast …
Journal: Journal Of Applied Meteorology, Volume 44 (10): 1593-1606 (2005), ISBN . DOI: 10.1175/jam2294.1 Sites: US-Wlr
Solar radiation and dew point temperature are important input variables for many crop growth ecological, hydrological, and meteorological models. It is also well known that solar radiation and dew point temperature (and relative humidity) data are not readily available for …
Journal: Agricultural And Forest Meteorology, Volume 130 (1-2): 71-84 (2005), ISBN . DOI: 10.1016/j.agrformet.2005.02.004 Sites: US-Ne1, US-Ne2, US-Ne3
Journal: Biogeosciences, Volume 2 (2): 175-187 (2005), ISBN . DOI: 10.5194/bg-2-175-2005 Sites: BR-Sa1, BR-Sa3
During the summer of 2001, NO2, total peroxy nitrates (ΣPNs), total alkyl nitrates (ΣANs), HNO3, volatile organic compounds (VOC), CO2, O3, and meteorological variables were measured at Granite Bay, CA. The diurnal variation in ΣPNs, ΣANs and HNO3 were all strongly correlated …
Journal: Atmospheric Chemistry And Physics Discussions, Volume 5 (4): 4801-4843 (2005), ISBN . DOI: 10.5194/acpd-5-4801-2005 Sites: US-Blo
The association between ∼10-km scale horizontal variation of radiometric surface temperature (Ts) and aircraft-derived fluxes of sensible heat (H) and moisture (LE) is the focus of this work. We use aircraft, surface, and satellite data from a Cooperative Atmospheric-Surface Exchange Studies (CASES) field program, which …
Journal: Journal Of Geophysical Research: Atmospheres, Volume 110 (D6): n/a-n/a (2005), ISBN . DOI: 10.1029/2004jd004542 Sites: US-Wlr
Ecosystem-atmosphere fluxes of 12CO2 and 13CO2 are needed to better understand the impacts of climate and land use change on ecosystem respiration (FR), net ecosystem CO2 exchange (FN), …
Journal: Agricultural And Forest Meteorology, Volume 132 (1-2): 1-19 (2005), ISBN . DOI: 10.1016/j.agrformet.2005.06.005 Sites: US-Ro1
Estimates of net ecosystem exchange (NEE) of CO2 have been measured on a variety of ecosystems world wide including grasslands, savannahs, boreal, pine, deciduous, Mediterranean and tropical rain forests as well as arctic tundra. While there have been numerous comparisons between net primary productivity of arid and semiarid grasslands …
Journal: Global Change Biology, Volume 11 (6): 927-939 (2005), ISBN . DOI: 10.1111/j.1365-2486.2005.00951.x Sites: MX-Lpa