Search Results - "Desai, A. R"

Albedo estimates for land surface models and support for a new paradigm based on foliage nitrogen concentration by Hollinger, D.Y, Ollinger, S.V, Richardson, A.D, Meyers, T.P, Dail, D.B, Martin, M.E, Scott, N.A, Arkebauer, T.J, Baldocchi, D.D, Clark, K.L, Curtis, P.S, Davis, K.J, Desai, A.R, Dragoni, D, Goulden, M.L, Gu, L, Katul, G.G, Pallard, S.G, Paw U., K.T, Schmid, H.P, Stoy, P.C, Suyker, A.E, Verma, S.B

“…Vegetation albedo is a critical component of the Earth's climate system, yet efforts to evaluate and improve albedo parameterizations in climate models have…”
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CO2, CO, and CH4 measurements from tall towers in the NOAA Earth System Research Laboratory's Global Greenhouse Gas Reference Network: instrumentation, uncertainty analysis, and recommendations for future high-accuracy greenhouse gas monitoring efforts by Andrews, A E, Kofler, J D, Trudeau, M E, Williams, J C, Neff, D H, Masarie, K A, Chao, D Y, Kitzis, D R, Novelli, P C, Zhao, C L, Dlugokencky, E J, Lang, P M, Crotwell, M J, Fischer, M L, Parker, M J, Lee, J T, Baumann, D D, Desai, A R, Stanier, C O, De Wekker, S F. J, Wolfe, D E, Munger, J W, Tans, P P

“…A reliable and precise in situ CO2 and CO analysis system has been developed and deployed at eight sites in the NOAA Earth System Research Laboratory's (ESRL)…”
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A primer for data assimilation with ecological models using Markov Chain Monte Carlo (MCMC) by Zobitz, J. M., Desai, A. R., Moore, D. J. P., Chadwick, M. A.

“…Data assimilation, or the fusion of a mathematical model with ecological data, is rapidly expanding knowledge of ecological systems across multiple spatial and…”
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Modelling contrasting responses of wetland productivity to changes in water table depth by Grant, R. F, Desai, A. R, Sulman, B. N

“…Responses of wetland productivity to changes in water table depth (WTD) are controlled by complex interactions among several soil and plant processes, and…”
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The imprint of surface fluxes and transport on variations in total column carbon dioxide by Keppel-Aleks, G, Wennberg, P. O, Washenfelder, R. A, Wunch, D, Schneider, T, Toon, G. C, Andres, R. J, Blavier, J.-F, Connor, B, Davis, K. J, Desai, A. R, Messerschmidt, J, Notholt, J, Roehl, C. M, Sherlock, V, Stephens, B. B, Vay, S. A, Wofsy, S. C

“…New observations of the vertically integrated CO2 mixing ratio, ⟨CO2⟩, from ground-based remote sensing show that variations in CO2⟩ are primarily determined…”
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Quantifying the effects of harvesting on carbon fluxes and stocks in northern temperate forests by Wang, W, Xiao, J, Ollinger, S. V, Desai, A. R, Chen, J, Noormets, A

“…Harvest disturbance has substantial impacts on forest carbon (C) fluxes and stocks. The quantification of these effects is essential for the better…”
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PEAT‐CLSM: A Specific Treatment of Peatland Hydrology in the NASA Catchment Land Surface Model by Bechtold, M., De Lannoy, G. J. M., Koster, R. D., Reichle, R. H., Mahanama, S. P., Bleuten, W., Bourgault, M. A., Brümmer, C., Burdun, I., Desai, A. R., Devito, K., Grünwald, T., Grygoruk, M., Humphreys, E. R., Klatt, J., Kurbatova, J., Lohila, A., Munir, T. M., Nilsson, M. B., Price, J. S., Röhl, M., Schneider, A., Tiemeyer, B.

“…Peatlands are poorly represented in global Earth system modeling frameworks. Here we add a peatland‐specific land surface hydrology module (PEAT‐CLSM) to the…”
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Contrasting carbon dioxide fluxes between a drying shrub wetland in Northern Wisconsin, USA, and nearby forests by Sulman, B. N., Desai, A. R., Cook, B. D., Saliendra, N., Mackay, D. S.

“…Wetland biogeochemistry is strongly influenced by water and temperature dynamics, and these interactions are currently poorly represented in ecosystem and…”
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First direct measurements of formaldehyde flux via eddy covariance: implications for missing in-canopy formaldehyde sources by DiGangi, J. P., Boyle, E. S., Karl, T., Harley, P., Turnipseed, A., Kim, S., Cantrell, C., Maudlin III, R. L., Zheng, W., Flocke, F., Hall, S. R., Ullmann, K., Nakashima, Y., Paul, J. B., Wolfe, G. M., Desai, A. R., Kajii, Y., Guenther, A., Keutsch, F. N.

“…We report the first observations of formaldehyde (HCHO) flux measured via eddy covariance, as well as HCHO concentrations and gradients, as observed by the…”
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Biological and physical influences on soil 14CO2 seasonal dynamics in a temperate hardwood forest by Phillips, C L, McFarlane, K J, Risk, D, Desai, A R

“…While radiocarbon (14 C) abundances in standing stocks of soil carbon have been used to evaluate rates of soil carbon turnover on timescales of several years…”
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Montane ecosystem productivity responds more to global circulation patterns than climatic trends by Desai, A R, Wohlfahrt, G, Zeeman, M J, Katata, G, Eugster, W, Montagnani, L, Gianelle, D, Mauder, M, Schmid, H-P

“…Regional ecosystem productivity is highly sensitive to inter-annual climate variability, both within and outside the primary carbon uptake period. However,…”
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The potential of carbonyl sulfide as a proxy for gross primary production at flux tower sites by Blonquist Jr, J. M., Montzka, S. A., Munger, J. W., Yakir, D., Desai, A. R., Dragoni, D., Griffis, T. J., Monson, R. K., Scott, R. L., Bowling, D. R.

“…Seasonal dynamics of atmospheric carbonyl sulfide (OCS) at regional and continental scales and plant OCS exchange at the leaf level have shown a close…”
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Bulk Transfer Coefficients Estimated From Eddy‐Covariance Measurements Over Lakes and Reservoirs by Guseva, S., Armani, F., Desai, A. R., Dias, N. L., Friborg, T., Iwata, H., Jansen, J., Lükő, G., Mammarella, I., Repina, I., Rutgersson, A., Sachs, T., Scholz, K., Spank, U., Stepanenko, V., Torma, P., Vesala, T., Lorke, A.

“…The drag coefficient, Stanton number and Dalton number are of particular importance for estimating the surface turbulent fluxes of momentum, heat and water…”
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Survival and activity of probiotic lactobacilli in skim milk containing prebiotics by Desai, A.R, Powell, I.B, Shah, N.P

“…Seven strains were cultured anaerobically at 37 °C for 48 h in 12% (w/v) reconstituted skim milk containing 5% (w/v) Hi‐maize, lactulose, inulin, or raftilose…”
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Assessing filtering of mountaintop CO2 mole fractions for application to inverse models of biosphere-atmosphere carbon exchange by Brooks, B.-G J, Desai, A R, Stephens, B B, Bowling, D R, Burns, S P, Watt, A S, Heck, S L, Sweeney, C

“…There is a widely recognized need to improve our understanding of biosphere-atmosphere carbon exchanges in areas of complex terrain including the United States…”
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Discrimination of dairy industry isolates of the Lactobacillus casei group by Desai, A R, Shah, N P, Powell, I B

“…Lactobacilli are a major part of the microflora of the gut and of many fermented dairy products, and are found in a variety of environments. Lactobacillus…”
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Thermal adaptation of net ecosystem exchange by Yuan, W., Luo, Y., Liang, S., Yu, G., Niu, S., Stoy, P., Chen, J., Desai, A. R., Lindroth, A., Gough, C. M., Ceulemans, R., Arain, A., Bernhofer, C., Cook, B., Cook, D. R., Dragoni, D., Gielen, B., Janssens, I. A., Longdoz, B., Liu, H., Lund, M., Matteucci, G., Moors, E., Scott, R. L., Seufert, G., Varner, R.

“…Thermal adaptation of gross primary production and ecosystem respiration has been well documented over broad thermal gradients. However, no study has examined…”
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Ecosystem carbon dioxide fluxes after disturbance in forests of North America by Amiro, B. D., Barr, A. G., Barr, J. G., Black, T. A., Bracho, R., Brown, M., Chen, J., Clark, K. L., Davis, K. J., Desai, A. R., Dore, S., Engel, V., Fuentes, J. D., Goldstein, A. H., Goulden, M. L., Kolb, T. E., Lavigne, M. B., Law, B. E., Margolis, H. A., Martin, T., McCaughey, J. H., Misson, L., Montes-Helu, M., Noormets, A., Randerson, J. T., Starr, G., Xiao, J.

“…Disturbances are important for renewal of North American forests. Here we summarize more than 180 site years of eddy covariance measurements of carbon dioxide…”
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Lagged Wetland CH4 Flux Response in a Historically Wet Year by Turner, J., Desai, A. R., Thom, J., Wickland, K. P.

“…While a stimulating effect of plant primary productivity on soil carbon dioxide (CO2) emissions has been well documented, links between gross primary…”
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The Importance of Spring Mixing in Evaluating Carbon Dioxide and Methane Flux From a Small North‐Temperate Lake in Wisconsin, United States by Gorsky, A. L., Lottig, N. R., Stoy, P. C., Desai, A. R., Dugan, H. A.

“…In limnological studies of temperate lakes, most studies of carbon dioxide (CO2) and methane (CH4) emissions have focused on summer measurements of gas fluxes…”
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