Simulation von Treibhausgasen in der Atmosphäre Publikationen

Enders, V., Müller, A., Frey, M. M., Hase, F., Kleinschek, R., Knapp, M., Löw, B., Morino, I., Nakaoka, S.-I., Nara, H., Tanimoto, H., Vardag, S. N., Voss, K., and Butz, A.: Towards routine shipborne measurements of columnar CO₂, CH₄, CO, and NO₂: a case study for tracking  regional-scale emission patterns

Lukas Pilz, Christopher Lüken-Winkels , Michał Gałkowski , David Ho , Christoph Gerbig , Fei Chen , Sanam N. Vardag, Evaluation of high-resolution WRF simulation in urban areas — Effect of different physics schemes on simulation performance in the Rhine-Main-Neckar area, Atmospheric Research, 2025

Eva-Marie Metz, Sanam N. Vardag, Andrew F. Feldman, Benjamin Poulter, Thomas Colligan, Brenden J. Fischer-Femal, André Butz, Responses of Terrestrial Ecosystem Respiration to Soil Moisture Across Australia’s Aridity Regimes, Environmental Research Letters, 2025

Vardag, S.N and Lauvaux, T. IG3IS Urban Greenhouse Gas Emission Observation and Monitoring Good Research Practice Guidelines 12. Forward Modelling

Bechthold, M., Barfuss, W., Butz, A., Breier, J., Constantino, S. M., Heitzig, J., Schwarz, L., Vardag, S. N., and Donges, J. F.: Social norms and groups structure safe operating spaces in renewable resource use in a social-ecological multi-layer network model, Eearth System Dynamics, 2025

Zhang, J., Chen, J., Vardag, S.N., Tang, H.: Inverse Estimation of Urban Methane Emissions Using Both Column and Surface Observations: an OSSE Study, JGR Atmopshere, 2025

Yun, Jeongmin ; Liu, Junjie; Baker , David ; Basu, Sourish; Chevallier, Frédéric; Johnson, Matthew; Li, Xing; Liu, Zhiqiang; Miller , Scot ; Philip, Sajeev; Vardag, Sanam N.; Xiao, Jingfeng; Zeng, Ning,: Interannual variability in African regional ecosystem carbon fluxes and their drivers revealed by satellite observations, under review in Global Biogeochemical Cycles, 2025

Glauch, T., Marshall, J., Gerbig, C., Botía, S., Gałkowski, M., Vardag, S. N., and Butz, A.: pyVPRM: a next-generation vegetation photosynthesis and respiration model for the post-MODIS era, Geosci. Model Dev., 18, 4713–4742, 2025.

Vardag, S. N., Metz, E.‐M., Artelt, L., Basu, S., and  Butz, A. (2025). CO₂ release during soil rewetting shapes the seasonal carbon dynamics in South American Temperate region. Geophysical Research Letters, 52, e2024GL111725.

Metz, E.-M., Vardag, S. N., Basu, S., Jung, M., and Butz, A.: Seasonal and interannual variability in CO₂ fluxes in southern Africa seen by GOSAT, Biogeosciences, 22, 555–584, 2025.

Vardag, S.N and Butz, A.: In die Atmosphäre und wieder zurück. Von Daten zum Handeln, Ruperto Carola Forschungsmagazin, Feb.2025

Vardag, S. N. and Maiwald, R.: Optimising urban measurement networks for CO₂ flux estimation: a high-resolution observing system simulation experiment using GRAMM/GRAL, Geosci. Model Dev., 17, 1885–1902, 2024

Knapp, M., Kleinschek, R., Vardag, S. N., Külheim, F., Haveresch, H., Sindram, M., Siegel, T., Burger, B., and Butz, A.: Quantitative imaging of carbon dioxide plumes using a ground-based shortwave infrared spectral camera, Atmos. Meas. Tech., 17, 2257–2275, 2024

May, M., Wald, S., Suter, I., Brunner, D., Vardag, S.N.: Evaluation of the GRAMM/GRAL model for high-resolution wind fields in Heidelberg, Germany, Atmospheric Research, 2024

Schmitt, T. D., Kuhn, J., Kleinschek, R., Löw, B. A., Schmitt, S., Cranton, W., Schmidt, M., Vardag, S. N., Hase, F., Griffith, D. W. T. and Butz, A.: An open-path observatory for greenhouse gases based on near-infrared Fourier transform spectroscopy, Atmos. Meas. Tech., 2023

Metz, E.-M., Vardag, S.N.,  Basu, S., Jung, M., Ahrens, B., El-Madany, T., Sitch, S., Arora, V.  K., Briggs, P. R. , Friedlingstein, P., Goll, D.S., Jain, A.K.,  Kato, E., Lombardozzi, D., Nabel,J .E. M. S., Poulter, B., Séférian, R., Tian, H., Wiltshire, A., Yuan, W., Yue, X., Zaehle, S.,  Deutscher, N.M.,  Griffith, D.W.T., Butz, A. Soil respiration–driven CO₂ pulses dominate Australia’s flux variability. Science, 379, 1332-1335, 2023

Ulrich, V., Brückner, J., Schultz, M., Vardag, S.N., Ludwig, C., Fürle, J., Zia, M., Lautenbach, S., Zipf, A. Private Vehicles Greenhouse Gas Emission Estimation at Street Level for Berlin Based on Open Data. ISPRS Int. J. Geo-Inf. 2023, 12, 138., 2023

Ebenhoch, S., Ruckelshausen, T., Siegmund, A., Teichert, V., Vardag, S.N.: Bildung für Nachhaltige Entwicklung,  Buchkapitel in Umwelt interdisziplinär, Bd. 1. Universitätsbibliothek, Heidelberg, 2022

Jungmann, M., Vardag, S.N., Kutzner, F., Keppler, F., Schmidt, M., Aeschbach, A., Gerhard, U., Zipf, A., Lautenbach, S., Siegmund, A., Goeschl, T. Butz, A.: Zooming-in for climate action—hyperlocal greenhouse gas data for mitigation action?. Clim Action 1, 8, 2022

Luther, A., Kostinek, J., Kleinschek, R., Defratyka, S., Stanisavljević, M., Forstmaier, A., Dandocsi, A., Scheidweiler, L., Dubravica, D., Wildmann, N., Hase, F., Frey, M. M., Chen, J., Dietrich, F., Nȩcki, J., Swolkień, J., Knote, C., Vardag, S. N., Roiger, A. and Butz, A.: Observational constraints on methane emissions from Polish coal mines using a ground-based remote sensing network, Atmos. Chem. Phys., 22(9), 5859–5876, 2022

Butz, A., Hanft, V., Kleinschek, R., Frey, M. M., Müller, A., Knapp, M., Morino, I., Agusti-Panareda, A., Hase, F., Landgraf, J., Vardag, S. N. and Tanimoto, H.: Versatile and Targeted Validation of Space-Borne XCO₂, XCH₄ and XCO Observations by Mobile Ground-Based Direct-Sun Spectrometers, Front. Remote Sens., 2, 775805, 2022

Ghasemifard, H.; Vogel, F.R.; Yuan, Y.; Luepke, M.; Chen, J.; Ries, L.; Leuchner, M.; Schunk, C.;  Vardag, S.N; Menzel, A. Pollution Events at the High-Altitude Mountain Site Zugspitze-Schneefernerhaus (2670 m a.s.l.), Germany. Atmosphere, 10, 330, 2019

Griffith, D. W. T., Pöhler, D., Schmitt, S., Hammer, S., Vardag, S. N., and Platt, U.: Long open-path measurements of greenhouse gases in air using near-infrared Fourier transform spectroscopy, Atmos. Meas. Tech., 11, 1549–1563, 2018

Vardag, S. N., Hammer, S., and Levin, I.: Evaluation of 4 years of continuous δ¹³C(CO₂) data using a moving Keeling plot method, Biogeosciences, 13, 4237–4251, 2016

 

Vardag, S. N., Hammer, S., Sabasch, M., Griffith, D. W. T., and Levin, I.: First continuous measurements of δ¹⁸O-CO₂ in air with a Fourier transform infrared spectrometer, Atmos. Meas. Tech., 8, 579–592, 2015

Vardag, S. N., Gerbig, C., Janssens-Maenhout, G., and Levin, I.: Estimation of continuous anthropogenic CO₂: model-based evaluation of CO₂, CO, δ¹³C(CO₂) and Δ¹⁴C(CO₂) tracer methods, Atmos. Chem. Phys., 15, 12705–12729, 2015

Vardag, S. N., Hammer, S., O'Doherty, S., Spain, T. G., Wastine, B., Jordan, A., and Levin, I.: Comparisons of continuous atmospheric CH₄, CO₂ and N₂O measurements – results from a travelling instrument campaign at Mace Head, Atmos. Chem. Phys., 14, 8403–8418, 2014

Hammer, S., Griffith, D. W. T., Konrad, G., Vardag, S., Caldow, C., and Levin, I.: Assessment of a multi-species in situ FTIR for precise atmospheric greenhouse gas observations, Atmos. Meas. Tech., 6, 1153–1170, 2013