Search Results - "Z. Barcza"

Effect of spatial heterogeneity on the validation of remote sensing based GPP estimations by Gelybó, Gy, Barcza, Z., Kern, A., Kljun, N.

“…► Remote sensing based gross primary production (GPP) estimations were evaluated using data from a tall eddy-covariance flux tower. ► Four different methods…”
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Modelling of grassland fluxes in Europe: Evaluation of two biogeochemical models by Sándor, R., Barcza, Z., Hidy, D., Lellei-Kovács, E., Ma, S., Bellocchi, G.

“…•The biogeochemical models PaSim and Biome-BGC MuSo are compared.•An analysis of C and water cycles is performed on five European grassland sites.•The two…”
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Development of the Biome-BGC model for simulation of managed herbaceous ecosystems by Hidy, D., Barcza, Z., Haszpra, L., Churkina, G., Pintér, K., Nagy, Z.

“…► We present the development of the Biome-BGC model to improve its performance in herbaceous ecosystems. ► Phenology representation and soil hydrology were…”
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The carbon budget of semi-arid grassland in a wet and a dry year in Hungary by Nagy, Z., Pintér, K., Czóbel, Sz, Balogh, J., Horváth, L., Fóti, Sz, Barcza, Z., Weidinger, T., Csintalan, Zs, Dinh, N.Q., Grosz, B., Tuba, Z.

“…Data on net ecosystem exchange (NEE) dynamics and carbon balance of a dry, extensively managed sandy grassland, as measured in Hungary in the years 2003 and…”
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Partitioning European grassland net ecosystem CO2 exchange into gross primary productivity and ecosystem respiration using light response function analysis by Gilmanov, T.G, Soussana, J.F, Aires, L, Allard, V, Ammann, C, Balzarolo, M, Barcza, Z, Bernhofer, C, Campbell, C.L, Cernusca, A

“…Tower CO2 flux measurements from 20 European grasslands in the EUROGRASSFLUX data set covering a wide range of environmental and management conditions were…”
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Trends and temporal variations of major greenhouse gases at a rural site in Central Europe by Haszpra, L., Barcza, Z., Hidy, D., Szilágyi, I., Dlugokencky, E., Tans, P.

“…In this study the trends and temporal variations of four major greenhouse gases (CO 2, CH 4, N 2O, SF 6) measured at Hegyhátsál, Hungary, are analyzed. The…”
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How well do tall-tower measurements characterize the CO2 mole fraction distribution in the planetary boundary layer? by Haszpra, L, Barcza, Z, Haszpra, T, Pátkai, Zs, Davis, K J

“…Planetary boundary layer (PBL) CO2 mole fraction data are needed by transport models and carbon budget models as both input and reference for validation. The…”
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Variation of CO2 mole fraction in the lower free troposphere, in the boundary layer and at the surface by Haszpra, L, Ramonet, M, Schmidt, M, Barcza, Z, Pátkai, Zs, Tarczay, K, Yver, C, Tarniewicz, J, Ciais, P

“…Eight years of occasional flask air sampling and 3 years of frequent in situ measurements of carbon dioxide (CO2 ) vertical profiles on board of a small…”
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Productivity, Respiration, and Light-Response Parameters of World Grassland and Agroecosystems Derived From Flux-Tower Measurements by Gilmanov, Tagir G., Aires, L., Barcza, Z., Baron, V. S., Belelli, L., Beringer, J., Billesbach, D., Bonal, D., Bradford, J., Ceschia, E., Cook, D., Corradi, C., Frank, A., Gianelle, D., Gimeno, C., Gruenwald, T., Guo, Haiqiang, Hanan, N., Haszpra, L., Heilman, J., Jacobs, A., Jones, M. B., Johnson, D. A., Kiely, G., Li, Shenggong, Magliulo, V., Moors, E., Nagy, Z., Nasyrov, M., Owensby, C., Pinter, K., Pio, C., Reichstein, M., Sanz, M. J., Scott, R., Soussana, J. F., Stoy, P. C., Svejcar, T., Tuba, Z., Zhou, Guangsheng

“…Grasslands and agroecosystems occupy one-third of the terrestrial area, but their contribution to the global carbon cycle remains uncertain. We used a set of…”
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Variation of CO 2 mole fraction in the lower free troposphere, in the boundary layer and at the surface by Haszpra, L., Ramonet, M., Schmidt, M., Barcza, Z., Pátkai, Zs, Tarczay, K., Yver, C., Tarniewicz, J., Ciais, P.

“…Eight years of occasional flask air sampling and 3 years of frequent in situ measurements of carbon dioxide (CO2) vertical profiles on board of a small…”
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Spatial representativeness of tall tower eddy covariance measurements using remote sensing and footprint analysis by Barcza, Z., Kern, A., Haszpra, L., Kljun, N.

“…We present a method for the estimation of the spatial representativeness of tall tower eddy covariance measurements monitoring a heterogeneous landscape. The…”
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How well do tall-tower measurements characterize the CO 2 mole fraction distribution in the planetary boundary layer? by Haszpra, L., Barcza, Z., Haszpra, T., Pátkai, Zs, Davis, K. J.

“…Planetary boundary layer (PBL) CO2 mole fraction data are needed by transport models and carbon budget models as both input and reference for validation. The…”
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Bridging the gap between climate models and impact studies: the FORESEE Database by Dobor, L., Barcza, Z., Hlásny, T., Havasi, Á., Horváth, F., Ittzés, P., Bartholy, J.

“…Studies on climate change impacts are essential for identifying vulnerabilities and developing adaptation options. However, such studies depend crucially on…”
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Long-term tall tower carbon dioxide flux monitoring over an area of mixed vegetation by Haszpra, L., Barcza, Z., Davis, K.J., Tarczay, K.

“…A methodology is described to determine the carbon budget of an extended region with mixed vegetation. The eddy covariance measuring system is operated at 82 m…”
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Interannual variability of grasslands' carbon balance depends on soil type by Pintér, K., Barcza, Z., Balogh, J., Czóbel, Sz, Csintalan, Zs, Tuba, Z., Nagy, Z.

“…Interannual variation of carbon fluxes of grasslands on sandy (5 years data) and heavy clay soils (4 years data) have been analysed. The sandy grassland was…”
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Measuring system for the long-term monitoring of biosphere/atmosphere exchange of carbon dioxide by Haszpra, L., Barcza, Z., Bakwin, P. S., Berger, B. W., Davis, K. J., Weidinger, T.

“…We describe an ongoing program being carried out in Hungary to investigate the role of the temperate continental region in the global carbon cycle. Carbon…”
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Analysis of the 21-years long carbon dioxide flux dataset from a Central European tall tower site by Barcza, Z., Kern, A., Davis, K.J., Haszpra, L.

“…•21-years long carbon dioxide flux dataset is presented from a Central Europen tall tower site.•net ecosystem production (NEP) increased during the years.•net…”
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Effect of tillage and crop type on soil respiration in a long-term field experiment on chernozem soil under temperate climate by Gelybó, Gy, Barcza, Z., Dencső, M., Potyó, I., Kása, I., Horel, Á., Pokovai, K., Birkás, M., Kern, A., Hollós, R., Tóth, E.

“…The objective of this study was to investigate the effect of soil tillage and crop type on soil respiration (Rs) in a typical Central European agricultural…”
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Conditional interval reduction method: A possible new direction for the optimization of process based models by Hollós, R., Fodor, N., Merganičová, K., Hidy, D., Árendás, T., Grünwald, T., Barcza, Z.

“…Application of process-based models at different spatial scales requires their proper parameterization. This task is typically executed using trial-and-error…”
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Sensitivity of simulated soil water content, evapotranspiration, gross primary production and biomass to climate change factors in Euro-Mediterranean grasslands by Bellocchi, G., Barcza, Z., Hollós, R., Acutis, M., Bottyán, E., Doro, L., Hidy, D., Lellei-Kovács, E., Ma, S., Minet, J., Pacskó, V., Perego, A., Ruget, F., Seddaiu, G., Wu, L., Sándor, R.

“…•We quantified the sensitivity of seven grassland models to climate change factors•Consistency among the models was variable and depended on the climate change…”
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