Publications

Publications Found: 1437

Evaporation From Lake Superior: 2 Spatial distribution and variability
Spence, C., Blanken, P., Hedstrom, N., Fortin, V., Wilson, H.

Evaporation is a critical component of the water balance of each of the Laurentian Great Lakes, and it is expected that because of their shear size, evaporation cannot be spatially or temporally uniform. Despite this, examples of spatially distributed estimates of evaporation in the scientific literature are rare for most of the …


Journal: Journal Of Great Lakes Research, Volume 37 (4): 717-724 (2011). DOI: 10.1016/j.jglr.2011.08.013 Sites: US-GL1

Seasonal And Interannual Variability In 13c Composition Of Ecosystem Carbon Fluxes In The U.S. Southern Great Plains
Torn, M. S., Biraud, S. C., Still, C. J., Riley, W. J., Berry, J. A.

The δ13C value of terrestrial CO2 fluxes (δbio) provides important information for inverse models of CO2 sources and sinks as well as for studies of vegetation physiology, C3 and C4 vegetation fluxes, and ecosystem carbon residence times. From 2002.2009, we measured atmospheric CO2 concentration and δ13C-CO2 at four heights (2 …


Journal: Tellus B: Chemical And Physical Meteorology, Volume 63 (2): 181-195 (2011). DOI: http://doi.org/10.1111/j.1600-0889.2010.00519.x Sites: US-ARM

Evidence Of Increased Net Ecosystem Productivity Associated With A Longer Vegetated Season In A Deciduous Forest In South-Central Indiana, Usa
DRAGONI, D., SCHMID, H. P., WAYSON, C. A., POTTER, H., GRIMMOND, C. S., RANDOLPH, J. C.

Observations of net ecosystem exchange (NEE) of carbon and its biophysical drivers have been collected at the AmeriFlux site in the Morgan-Monroe State Forest (MMSF) in Indiana, USA since 1998. Thus, this is one of the few deciduous forest sites in the world, where a decadal analysis on net ecosystem productivity (NEP) trends is …


Journal: Global Change Biology, Volume 17 (2): 886-897 (2011). DOI: 10.1111/j.1365-2486.2010.02281.x Sites: US-MMS

Seasonal Pattern Of Regional Carbon Balance In The Central Rocky Mountains From Surface And Airborne Measurements
Desai, A.R., Moore, D.J.P., Ahue, W.K.M., Wilkes, P.T.V., De Wekker, S.F.J., Brooks, B.G., Campos, T.L., Stephens, B.B., Monson, R.K., Burns, S.P., Quaife, T., Aulenbach, S.M., Schimel, D.S.

High-elevation forests represent a large fraction of potential carbon uptake in North America, but this uptake is not well constrained by observations. Additionally, forests in the Rocky Mountains have recently been severely damaged by drought, fire, and insect outbreaks, which have been quantified at local scales but not assessed …


Journal: Journal Of Geophysical Research, Volume 116 (G04009): 1-16 (2011). DOI: 10.1029/2011JG001655 Sites: US-NR1

Disturbance And The Resilience Of Coupled Carbon And Nitrogen Cycling In A North Temperate Forest
Nave, L.E., Gough, C.M., Maurer, K.D., Bohrer, G, Hardiman, B.S., Le Moine, J., Munoz, A.B., Nadelhoffer, K.J., Sparks, J.P., Strahm, B.D., Vogel, C.S., Curtis, P.S.

Much of our biogeochemical understanding of forest disturbances comes from studies of severe or stand-replacing events, which may have different impacts on coupled carbon (C) and nitrogen (N) cycling than …


Journal: Journal Of Geophysical Research, Volume 116 (G04016): n/a-n/a (2011). DOI: 10.1029/2011JG001758 Sites: US-UMd

Comparing Laser-Based Open- And Closed-Path Gas Analyzers To Measure Methane Fluxes Using The Eddy Covariance Method
Detto, M., Verfaillie, J., Anderson, F., Xu, L., Baldocchi, D.

Closed- and open-path methane gas analyzers are used in eddy covariance systems to compare three potential methane emitting ecosystems in the Sacramento-San Joaquin Delta (CA, USA): a rice field, a peatland pasture and a restored wetland. The study points out similarities …


Journal: Agricultural And Forest Meteorology, Volume 151 (10): 1312-1324 (2011). DOI: 10.1016/j.agrformet.2011.05.014 Sites: US-Snd

Carbon Dioxide Exchange Of A Pepperweed ( Lepidium Latifolium L.) Infestation: How Do Flowering And Mowing Affect Canopy Photosynthesis And Autotrophic Respiration?
Sonnentag, O., Detto, M., Runkle, B. R. K., Teh, Y. A., Silver, W. L., Kelly, M., Baldocchi, D. D.

The net ecosystem carbon dioxide (CO2) exchange of invasive plant infestations, such as perennial pepperweed (Lepidium latifolium L.), is not well understood. A characteristic feature …


Journal: Journal Of Geophysical Research, Volume 116 (G1): n/a-n/a (2011). DOI: 10.1029/2010jg001522 Sites: US-Snd

Oxygen Isotope Composition Of Evapotranspiration And Its Relation To C4 Photosynthetic Discrimination
Griffis, T.J., Lee, X., Baker, J.M., Billmark, K., Erickson, N. Schultz,M., Zhang, X., Fassbinder, J., Xiao, W., Hu, N.

The oxygen isotope of water (18O-H2O) and carbon dioxide (18O-CO2) is an important signal of global change and can provide constraints on the coupled carbon-water cycle. Here, simultaneous observations of 18O-H2O (liquid and vapor phases) and 18O-CO2


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 116 (G1): n/a-n/a (2011). DOI: 10.1029/2010JG001514 Sites: US-Ro1, US-Ro2, US-Ro3, US-Ro4

Characteristics Of The Flux Of Isoprene And Its Oxidation Products In An Urban Area
Park, C., Schade, G. W., Boedeker, I.

We measured the mixing ratios and fluxes of isoprene and its oxidation products, methacrolein (MACR) and methyl vinyl ketone (MVK) from a tall flux tower in metropolitan Houston, Texas, during summertime using a relaxed eddy accumulation (REA) system combined with a dual-channel GC-FID instrument. We show that isoprene was affected …


Journal: Journal Of Geophysical Research: Atmospheres, Volume 116 (D21): n/a-n/a (2011). DOI: 10.1029/2011jd015856 Sites: US-Ylw

Three-Dimensional Canopy Fuel Loading Predicted Using Upward And Downward Sensing LiDAR Systems
Skowronski, N. S., Clark, K. L., Duveneck, M., Hom, J.

We calibrated upward sensing profiling and downward sensing scanning LiDAR systems to estimates of canopy fuel loading developed from field plots and allometric equations, and then used the LiDAR datasets to predict canopy bulk density (CBD) and crown fuel weight (CFW) in wildfire prone stands in the New Jersey Pinelands. …


Journal: Remote Sensing Of Environment, Volume 115 (2): 703-714 (2011). DOI: 10.1016/j.rse.2010.10.012 Sites: US-Ced