Search Results - "Vossbeck, M."

Adjoint analysis of the 2007 all time Arctic sea-ice minimum by Kauker, F., Kaminski, T., Karcher, M., Giering, R., Gerdes, R., Voßbeck, M.

“…The past two decades saw a steady decrease of summer Arctic sea ice extent. The 2007 value was yet considerably lower than expected from extrapolating the…”
Get full text

Mean European Carbon Sink Over 2010–2015 Estimated by Simultaneous Assimilation of Atmospheric CO2, Soil Moisture, and Vegetation Optical Depth by Scholze, M., Kaminski, T., Knorr, W., Voßbeck, M., Wu, M., Ferrazzoli, P., Kerr, Y., Mialon, A., Richaume, P., Rodríguez-Fernández, N., Vittucci, C., Wigneron, J.‐P., Mecklenburg, S., Drusch, M.

“…The northern land biosphere is believed to be the main global sink of CO2, but the contribution of Europe is uncertain. While bottom‐up estimates and inverse…”
Get full text

Simultaneous assimilation of SMOS soil moisture and atmospheric CO2 in-situ observations to constrain the global terrestrial carbon cycle by Scholze, M., Kaminski, T., Knorr, W., Blessing, S., Vossbeck, M., Grant, J.P., Scipal, K.

“…Carbon dioxide (CO2) is the most important anthropogenic greenhouse gas contributing to about half of the total anthropogenic change in the Earth's radiation…”
Get full text

Constraining a terrestrial biosphere model with remotely sensed atmospheric carbon dioxide by Kaminski, T., Scholze, M., Vossbeck, M., Knorr, W., Buchwitz, M., Reuter, M.

“…We present two novel earth observation products derived from the BESD and EMMA XCO2 products which were respectively retrieved from SCIAMACHY and GOSAT…”
Get full text

Observing the continental-scale carbon balance: assessment of sampling complementarity and redundancy in a terrestrial assimilation system by means of quantitative network design by Kaminski, T, Rayner, P. J, Voßbeck, M, Scholze, M, Koffi, E

“…This paper investigates the relationship between the heterogeneity of the terrestrial carbon cycle and the optimal design of observing networks to constrain…”
Get full text

Retrieving surface parameters for climate models from Moderate Resolution Imaging Spectroradiometer (MODIS)-Multiangle Imaging Spectroradiometer (MISR) albedo products by Pinty, B., Lavergne, T., Voßbeck, M., Kaminski, T., Aussedat, O., Giering, R., Gobron, N., Taberner, M., Verstraete, M. M., Widlowski, J.-L.

“…We present a computer‐efficient software package enabling us to assimilate operational remote‐sensing flux products into a state‐of‐the‐art two‐stream…”
Get full text

Partitioning the solar radiant fluxes in forest canopies in the presence of snow by Pinty, B., Lavergne, T., Kaminski, T., Aussedat, O., Giering, R., Gobron, N., Taberner, M., Verstraete, M. M., Voßbeck, M., Widlowski, J.-L.

“…The main goal of this study is to help bridge the gap between available remote sensing products and large‐scale global climate models. We present results from…”
Get full text

Paving the Road to Flex and Biomass: The Land Surface Carbon Constellation Study by Rodriguez-Fernandez, N., Barbier, M., Verrelst, J., Lindqvist, H., Bueechi, E., Munoz, P. Reyes, Mialon, A., Vreugdenhil, M., Dorigo, W., Bouvet, A., Kerr, Y., Vossbeck, M., Kaminski, T., Scholze, M.

“…Remote sensing observations of variables related to vegetation at microwave and optical/infrared wavelengths are presented over three regions in Europe in the…”
Get full text

Assimilation of carbonyl sulfide (COS) fluxes within the adjoint-based data assimilation system – Nanjing University Carbon Assimilation System (NUCAS v1.0) by Zhu, Huajie, Wu, Mousong, Jiang, Fei, Vossbeck, Michael, Kaminski, Thomas, Xing, Xiuli, Wang, Jun, Ju, Weimin, Chen, Jing M.

“…Modeling and predicting changes in the function and structure of the terrestrial biosphere and its feedbacks to climate change strongly depends on our ability…”
Get full text

Mean European Carbon Sink Over 2010–2015 Estimated by Simultaneous Assimilation of Atmospheric CO 2 , Soil Moisture, and Vegetation Optical Depth by Scholze, M., Kaminski, T., Knorr, W., Voßbeck, M., Wu, M., Ferrazzoli, P., Kerr, Y., Mialon, A., Richaume, P., Rodríguez-Fernández, N., Vittucci, C., Wigneron, J.‐P., Mecklenburg, S., Drusch, M.

“…Abstract The northern land biosphere is believed to be the main global sink of CO 2 , but the contribution of Europe is uncertain. While bottom‐up estimates…”
Get full text

Consistent retrieval of land surface radiation products from EO, including traceable uncertainty estimates by Kaminski, Thomas, Pinty, Bernard, Voßbeck, Michael, Lopatka, Maciej, Gobron, Nadine, Robustelli, Monica

“…Earth observation (EO) land surface products have been demonstrated to provide a constraint on the terrestrial carbon cycle that is complementary to the record…”
Get full text

Constraining a land-surface model with multiple observations by application of the MPI-Carbon Cycle Data Assimilation System V1.0 by Schürmann, Gregor J, Kaminski, Thomas, Köstler, Christoph, Carvalhais, Nuno, Voßbeck, Michael, Kattge, Jens, Giering, Ralf, Rödenbeck, Christian, Heimann, Martin, Zaehle, Sönke

“…We describe the Max Planck Institute Carbon Cycle Data Assimilation System (MPI-CCDAS) built around the tangent-linear version of the JSBACH land-surface…”
Get full text

Arctic Mission Benefit Analysis: impact of sea ice thickness, freeboard, and snow depth products on sea ice forecast performance by Kaminski, Thomas, Kauker, Frank, Toudal Pedersen, Leif, Vossbeck, Michael, Haak, Helmuth, Niederdrenk, Laura, Hendricks, Stefan, Ricker, Robert, Karcher, Michael, Eicken, Hajo, Grabak, Ola

“…Assimilation of remote-sensing products of sea ice thickness (SIT) into sea ice–ocean models has been shown to improve the quality of sea ice forecasts. Key…”
Get full text

The BETHY/JSBACH Carbon Cycle Data Assimilation System: experiences and challenges by Kaminski, T., Knorr, W., Schürmann, G., Scholze, M., Rayner, P. J., Zaehle, S., Blessing, S., Dorigo, W., Gayler, V., Giering, R., Gobron, N., Grant, J. P., Heimann, M., Hooker-Stroud, A., Houweling, S., Kato, T., Kattge, J., Kelley, D., Kemp, S., Koffi, E. N., Köstler, C., Mathieu, P.-P., Pinty, B., Reick, C. H., Rödenbeck, C., Schnur, R., Scipal, K., Sebald, C., Stacke, T., van Scheltinga, A. Terwisscha, Vossbeck, M., Widmann, H., Ziehn, T.

“…We present the concept of the Carbon Cycle Data Assimilation System and describe its evolution over the last two decades from an assimilation system around a…”
Get full text

Application to MISR land products of an RPV model inversion package using adjoint and Hessian codes by Lavergne, Thomas, Kaminski, Thomas, Pinty, Bernard, Taberner, Malcolm, Gobron, Nadine, Verstraete, Michel M., Vossbeck, Michael, Widlowski, Jean-Luc, Giering, Ralf

“…The capability of the non-linear Rahman–Pinty–Verstraete (RPV) model to 1) accurately fit a large variety of Bidirectional Reflectance Factor (BRF) fields and…”
Get full text

Testing the use of adjoints for parameter estimation in a simple GCM on climate time-scales by Thomas Kaminski, Simon Blessing, Ralf Giering, Marko Scholze, Michael Vossbeck

“…The paper presents a feasibility study for a Climate Prediction Data Assimilation System following the methodological approach of the Carbon Cycle Data…”
Get full text

Rigorous Assessment of Mission Impact on Sea Ice Forecast Quality by Kaminski, T., Kauker, F., Pedersen, L. Toudal, Vossbeck, M., Haak, H., Niederdrenk, L., Hendricks, S., Ricker, R., Karcher, M., Eicken, H., Grabak, O.

“…We present the prototype of a a flexible modelling system for Arctic Mission Benefit Analysis (ArcMBA) that evaluates in a mathematically rigorous fashion the…”
Get full text

Constraining Terrestrial Carbon Fluxes Through Assimilation of SMOS Products by Kaminski, T., Scholze, M., Knorr, W., Vossbeck, M., Wu, M., Ferrazzoli, P., Kerr, Y., Mialon, A., Richaume, P., Rodrigucz-Femander, N., Vittucci, C., Wigneron, J.-P., Drusch, M.

“…The ongoing ESA funded 'SMOS + Vegetation' project combines a retrieval component that aims at further improving the SMOS VOD product with an assimilation…”
Get full text