Search Results - "Friend, D. A."

Carbon and nitrogen cycle dynamics in the O-CN land surface model: 1. Model description, site-scale evaluation, and sensitivity to parameter estimates by Zaehle, S, Friend, A.D

“…Nitrogen (N) availability plays a key role in terrestrial biosphere dynamics. To understand and quantify the role of terrestrial N in the Earth system, we…”
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Carbon and nitrogen cycle dynamics in the O-CN land surface model: 2. Role of the nitrogen cycle in the historical terrestrial carbon balance by Zaehle, S, Friend, A.D, Friedlingstein, P, Dentener, F, Peylin, P, Schultz, M

“…Global-scale results of the new O-CN terrestrial biosphere model coupling the carbon (C) and nitrogen (N) cycles show that the model produces realistic…”
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Europe-wide reduction in primary productivity caused by the heat and drought in 2003 by Friend, A. D, Valentini, R, Aubinet, M, Matteucci, G, Heinesch, B, Ciais, Ph, Allard, V, Soussana, J. F, Manca, G, Schulze, E. D, Viovy, N, Loustau, D, Ourcival, J. M, Papale, D, Bernhofer, Chr, Knohl, A, Buchmann, N, Grünwald, T, Krinner, G, Granier, A, Seufert, G, Ogée, J, Carrara, A, Miglietta, F, Chevallier, F, Friedlingstein, P, Reichstein, M, Keronen, P, De Noblet, N, Rambal, S, Pilegaard, K, Vesala, T, Sanz, M. J

“…Future climate warming is expected to enhance plant growth in temperate ecosystems and to increase carbon sequestration. But although severe regional heatwaves…”
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Consistent limitation of growth by high temperature and low precipitation from range core to southern edge of European beech indicates widespread vulnerability to changing climate by Hacket-Pain, A. J., Cavin, L., Friend, A. D., Jump, A. S.

“…The aim of our study was to determine variation in the response of radial growth in Fagus sylvatica L (European Beech) to climate across the species full…”
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Assimilation of global MODIS leaf area index retrievals within a terrestrial biosphere model by Demarty, J., Chevallier, F., Friend, A. D., Viovy, N., Piao, Shilong, Ciais, P.

“…We investigate the capability of global leaf area index (LAI) retrievals from the Moderate Resolution Imaging Spectroradiometer (MODIS) to be assimilated…”
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Statistical estimation and generalized additive modeling of rock glacier distribution in the San Juan Mountains, Colorado, United States by Brenning, A., Grasser, M., Friend, D. A.

“…Our goal is to quantify rock glacier abundance and analyze the topographic controls of rock glacier distribution patterns. For this purpose we use statistical…”
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Site-level model intercomparison of high latitude and high altitude soil thermal dynamics in tundra and barren landscapes by Ekici, A, Chadburn, S, Chaudhary, N, Hajdu, L. H, Marmy, A, Peng, S, Boike, J, Burke, E, Friend, A. D, Hauck, C, Krinner, G, Langer, M, Miller, P. A, Beer, C

“…Modeling soil thermal dynamics at high latitudes and altitudes requires representations of physical processes such as snow insulation, soil freezing and…”
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Impact of climate variability and land use changes on global biogenic volatile organic compound emissions by Lathière, J., Hauglustaine, D. A., Friend, A. D., De Noblet-Ducoudré, N., Viovy, N., Folberth, G. A.

“…A biogenic emissions scheme has been incorporated in the global dynamic vegetation model ORCHIDEE (Organizing Carbon and Hydrology in Dynamic EcosystEms) in…”
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Decomposing uncertainties in the future terrestrial carbon budget associated with emission scenarios, climate projections, and ecosystem simulations using the ISI-MIP results by Nishina, K, Ito, A, Falloon, P, Friend, A. D, Beerling, D. J, Ciais, P, Clark, D. B, Kahana, R, Kato, E, Lucht, W, Lomas, M, Pavlick, R, Schaphoff, S, Warszawaski, L, Yokohata, T

“…We examined the changes to global net primary production (NPP), vegetation biomass carbon (VegC), and soil organic carbon (SOC) estimated by six global…”
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Response of Earth's surface temperature to radiative forcing over A.D. 1-2009 by Friend, A. D.

“…An energy balance model (EBM) of the annual global mean surface temperature is described and calibrated to the sensitivity and temporal dynamics of the Goddard…”
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Quantifying the global carbon cycle response to volcanic stratospheric aerosol radiative forcing using Earth System Models by Foley, A. M., Willeit, M., Brovkin, V., Feulner, G., Friend, A. D.

“…Large volcanic eruptions can have a significant cooling effect on climate, which is evident in both modern and palaeo data. However, due to the difficulty of…”
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Quantifying uncertainties in soil carbon responses to changes in global mean temperature and precipitation by Nishina, K, Ito, A, Beerling, D. J, Cadule, P, Ciais, P, Clark, D. B, Falloon, P, Friend, A. D, Kahana, R, Kato, E, Keribin, R, Lucht, W, Lomas, M, Rademacher, T. T, Pavlick, R, Schaphoff, S, Vuichard, N, Warszawaski, L, Yokohata, T

“…Soil organic carbon (SOC) is the largest carbon pool in terrestrial ecosystems and may play a key role in biospheric feedbacks with elevated atmospheric carbon…”
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Turbulent flux modelling with a simple 2-layer soil model and extrapolated surface temperature applied at Nam Co Lake basin on the Tibetan Plateau by Gerken, T, Babel, W, Hoffmann, A, Biermann, T, Herzog, M, Friend, A. D, Li, M, Ma, Y, Foken, T, Graf, H.-F

“…This paper introduces a surface model with two soil-layers for use in a high-resolution circulation model that has been modified with an extrapolated surface…”
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Climate impact research: beyond patchwork by Huber, V, Schellnhuber, H. J, Arnell, N. W, Frieler, K, Friend, A. D, Gerten, D, Haddeland, I, Kabat, P, Lotze-Campen, H, Lucht, W, Parry, M, Piontek, F, Rosenzweig, C, Schewe, J, Warszawski, L

“…Despite significant progress in climate impact research, the narratives that science can presently piece together of a 2, 3, 4, or 5 °C warmer world remain…”
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A framework for the cross-sectoral integration of multi-model impact projections: land use decisions under climate impacts uncertainties by Frieler, K, Levermann, A, Elliott, J, Heinke, J, Arneth, A, Bierkens, M. F. P, Ciais, P, Clark, D. B, Deryng, D, Döll, P, Falloon, P, Fekete, B, Folberth, C, Friend, A. D, Gellhorn, C, Gosling, S. N, Haddeland, I, Khabarov, N, Lomas, M, Masaki, Y, Nishina, K, Neumann, K, Oki, T, Pavlick, R, Ruane, A. C, Schmid, E, Schmitz, C, Stacke, T, Stehfest, E, Tang, Q, Wisser, D, Huber, V, Piontek, F, Warszawski, L, Schewe, J, Lotze-Campen, H, Schellnhuber, H. J

“…Climate change and its impacts already pose considerable challenges for societies that will further increase with global warming (IPCC, 2014a, b)…”
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Evaluation of biospheric components in Earth system models using modern and palaeo-observations: the state-of-the-art by Foley, A. M, Dalmonech, D, Friend, A. D, Aires, F, Archibald, A. T, Bartlein, P, Bopp, L, Chappellaz, J, Cox, P, Edwards, N. R, Feulner, G, Friedlingstein, P, Harrison, S. P, Hopcroft, P. O, Jones, C. D, Kolassa, J, Levine, J. G, Prentice, I. C, Pyle, J, Vázquez Riveiros, N, Wolff, E. W, Zaehle, S

“…Earth system models (ESMs) are increasing in complexity by incorporating more processes than their predecessors, making them potentially important tools for…”
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Modelling the impact of future changes in climate, CO2 concentration and land use on natural ecosystems and the terrestrial carbon sink by Levy, P.E., Cannell, M.G.R., Friend, A.D.

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Economic value of improved quantification in global sources and sinks of carbon dioxide by Durant, A. J., Le Quéré, C., Hope, C., Friend, A. D.

“…On average, about 45 per cent of global annual anthropogenic carbon dioxide (CO 2 ) emissions remain in the atmosphere, while the remainder are taken up by…”
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The influence of land use change on global-scale fluxes of carbon from terrestrial ecosystems by LEVY, P. E, FRIEND, A. D, WHITE, A, CANNELL, M. G. R

“…A process-based approach to modelling the effects of land use change and climate change on the carbon balance of terrestrial ecosystems was applied at global…”
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The influence of masting phenomenon on growth-climate relationships in trees: explaining the influence of previous summers' climate on ring width by Hacket-Pain, Andrew J, Friend, Andrew D, Lageard, Jonathan G A, Thomas, Peter A

“…Tree growth is frequently linked to weather conditions prior to the growing season but our understanding of these lagged climate signatures is still poorly…”
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