Publications

Publications Found: 1437

Observational Constraints On The Contribution Of Isoprene Oxidation To Ozone Production On The Western Slope Of The Sierra Nevada, California
Dreyfus, G. B., Schade, G. W., Goldstein, A. H.

Observations of isoprene and its oxidation products methacrolein (MACR) and methyl vinyl ketone (MVK) are used to quantify the impact of isoprene oxidation on ozone production along the western slope of the Sierra Nevada mountains. Regular daytime up-slope wind flow patterns transport anthropogenic volatile organic compounds (VOC) …


Journal: Journal Of Geophysical Research, Volume 107 (D19): n/a-n/a (2002). DOI: 10.1029/2001jd001490 Sites: US-Blo

Estimation Of Tropical Forest Structural Characteristics Using Large-Footprint Lidar
Drake, J. B., Dubayah, R. O., Clark, D. B., Knox, R. G., Blair, J., Hofton, M. A., Chazdon, R. L., Weishampel, J. F., Prince, S.

Quantification of forest structure is important for developing a better understanding of how forest ecosystems function. Additionally, estimation of forest structural attributes, such as aboveground biomass (AGBM), is an important step in identifying the amount of carbon in terrestrial vegetation pools and is central to global carbon …


Journal: Remote Sensing Of Environment, Volume 79 (2-3): 305-319 (2002). DOI: 10.1016/s0034-4257(01)00281-4 Sites: CR-Lse

Comparative Measurements Of Carbon Dioxide Fluxes From Two Nearby Towers In A Central Amazonian Rainforest: The Manaus Lba Site
Araújo, A. C., Nobre, A. D., Kruijt, B., Elbers, J. A., Dallarosa, R., Stefani, P., von Randow, C., Manzi, A. O., Culf, A. D., Gash, J. H. C., Valentini, R., Kabat, P.

Forests around Manaus have staged the oldest and the longest forest-atmosphere CO2 exchange studies made anywhere in the Amazon. Since July 1999 the exchange of CO2, water, and energy, as well as weather variables, have been measured almost continuously over two forests, 11 km apart, in the Cuieiras reserve near Manaus, Brazil. This …


Journal: Journal Of Geophysical Research, Volume 107 (D20): (2002). DOI: 10.1029/2001JD000676 Sites: BR-Ma2

Carbon Exchange Of An Old-Growth Eastern Hemlock (Tsuga Canadensis) Forest In Central New England
Hadley, J. L., Schedlbauer, J. L.


Journal: Tree Physiology, Volume 22 (15-16): 1079-1092 (2002). DOI: 10.1093/treephys/22.15-16.1079 Sites: US-Ha2

Evapotranspiration And Soil Water Content In A Scrub-Oak Woodland Under Carbon Dioxide Enrichment
Hungate, B. A., Reichstein, M., Dijkstra, P., Johnson, D., Hymus, G., Tenhunen, J. D., Hinkle, C., Drake, B. G.

Leaf conductance often decreases in response to elevated atmospheric CO2 concentration (Ca) potentially leading to changes in hydrology. We describe the hydrological responses of Florida scrub oak to elevated Ca during an eight-month period two years after Ca


Journal: Global Change Biology, Volume 8 (3): 289-298 (2002). DOI: 10.1046/j.1365-2486.2002.00468.x Sites: US-KS2

Modeling Seasonal To Annual Carbon Balance Of Mer Bleue Bog, Ontario, Canada
Frolking, S., Roulet, N. T., Moore, T. R., Lafleur, P. M., Bubier, J. L., Crill, P. M.

Northern peatlands contain enormous quantities of organic carbon within a few meters of the atmosphere and play a significant role in the planetary carbon balance. We have developed a new, process-oriented model of the contemporary carbon balance of northern peatlands, the Peatland Carbon Simulator (PCARS). Components of PCARS are …


Journal: Global Biogeochemical Cycles, Volume 16 (3): 1-21 (2002). DOI: 10.1029/2001gb001457 Sites: CA-Mer

Photosynthesis And Respiration Of Black Spruce At Three Organizational Scales: Shoot, Branch And Canopy
Rayment, M. B., Loustau, D., Jarvis, P. J.
To gain insight into the function of photosynthesis and respiration as processes operating within a global ecosystem, we measured gas exchange of mature black spruce (Picea mariana (Mill.) B.S.P.) trees at three organizational scales: individual shoots, whole branches and a forest canopy. A biochemical …


Journal: Tree Physiology, Volume 22 (4): 219-229 (2002). DOI: 10.1093/treephys/22.4.219 Sites: CA-Obs

Relationship Of Area-Averaged Carbon Dioxide And Water Vapour Fluxes To Atmospheric Variables
Mahrt, L., Vickers, D.

Area-averaged fluxes are constructed from a combination of aircraft and tower data collected during BOREAS. The averaging area includes both conifer and deciduous forests, wetlands, burned areas and bodies of water. The area-averaged water vapour flux is closely related …


Journal: Agricultural And Forest Meteorology, Volume 112 (3-4): 195-202 (2002). DOI: 10.1016/s0168-1923(02)00079-5 Sites: CA-Fen, CA-Oas, CA-Obs, CA-Ojp, CA-SJ3

Measurement Carbon Dioxide Concentration Does Not Affect Root Respiration Of Nine Tree Species In The Field
Burton, A. J., Pregitzer, K. S.
Inhibition of respiration has been reported as a short-term response of tree roots to elevated measurement CO2 concentration ([CO2]), calling into question the validity of root respiration rates determined at CO2 concentrations that differ from the soil [CO2] in …


Journal: Tree Physiology, Volume 22 (1): 67-72 (2002). DOI: 10.1093/treephys/22.1.67 Sites: US-SP1

Estimating Net Primary Productivity From Grassland Biomass Dynamics Measurements
Scurlock, J. M., Johnson, K., Olson, R. J.

To address the need for a high quality data set based upon field observations suitable for parameterization, calibration, and validation of terrestrial biosphere models, we have developed a comprehensive global database on net primary productivity (NPP). We have compiled field measurements of biomass and associated environmental …


Journal: Global Change Biology, Volume 8 (8): 736-753 (2002). DOI: 10.1046/j.1365-2486.2002.00512.x Sites: US-KFB, US-Kon