2025 (3)

• Huang, X., Ebeling, P., Liu, G., Fleckenstein, J.H., Schmidt, C. (2025):
  Combining local head differences and topography-driven groundwater flow reveals gaining and losing patterns in stream networks
  Water Resour. Res. 61 (2), e2024WR037443
  10.1029/2024WR037443
• Schreyers, L., Kirschke, S., Pinto, R., Wendt-Potthoff, K., Schmidtke, L., Schmidt, C., van Emmerik, T.H.M. (2025):
  Dataset underlying the publication "Suitability of river plastic monitoring methods for citizen science"
  4TU.ResearchData
  10.4121/d109d044-0032-4e6d-9a5a-16182fb20c79.v1
• Yang, W., Schmidt, C., Wu, S., Zhao, Z., Wang, Z., Wang, H., Hua, P., Krebs, P., Zhang, J. (2025):
  Exacerbated anthropogenic water pollution under climate change and urbanization
  Water Res. 280 , art. 123449
  10.1016/j.watres.2025.123449

2024 (5)

• Ahmadi, P., Dichgans, F., Jagau, J., Schmidt, C., Aizinger, V., Gilfedder, B.S., Fleckenstein, J.H. (2024):
  Systematic CFD-based evaluation of physical factors influencing the spatiotemporal distribution patterns of microplastic particles in lakes
  Sci. Total Environ. 917 , art. 170218
  10.1016/j.scitotenv.2024.170218
• Dichgans, F., Schulze, T., Büttner, O., Busch, W., Schulz, C., Sachse, D., Schmidt, C. (2024):
  Dataset of River Water Quality for Saxony, Germany, 1985-2023 [dataset]
  PANGAEA
  10.1594/PANGAEA.969111
• Schmidt, C., Kühnel, D., Materić, D., Stubenrauch, J., Schubert, K., Luo, A., Wendt-Potthoff, K., Jahnke, A. (2024):
  Supporting data of the Short communication: A multidisciplinary perspective on the role of plastic pollution in the triple planetary crisis [Dataset]
  Zenodo
  10.5281/zenodo.12794921
• Schmidt, C., Kühnel, D., Materić, D., Stubenrauch, J., Schubert, K., Luo, A., Wendt-Potthoff, K., Jahnke, A. (2024):
  A multidisciplinary perspective on the role of plastic pollution in the triple planetary crisis
  Environ. Int. 193 , art. 109059
  10.1016/j.envint.2024.109059
• Schmidtke, L., van Emmerik, T.H.M., Pinto, R.B., Pinto, L.J., Schmidt, C., Wendt-Potthoff, K., Kirschke, S. (2024):
  Sustainable implementation of citizen-based plastic monitoring of fresh waters in Western Africa
  Sustainability 16 (12), art. 10007
  10.3390/su162210007

2023 (2)

• Kirschke, S., van Emmerik, T.H.M., Nath, S., Schmidt, C., Wendt-Potthoff, K. (2023):
  Barriers to plastic monitoring in freshwaters in the Global South
  Environ. Sci. Policy 146 , 162 - 170
  10.1016/j.envsci.2023.05.011
• van Emmerik, T.H.M., Kirschke, S., Schreyers, L.J., Nath, S., Schmidt, C., Wendt-Potthoff, K. (2023):
  Estimating plastic pollution in rivers through harmonized monitoring strategies
  Mar. Pollut. Bull. 196 , art. 115503
  10.1016/j.marpolbul.2023.115503

2022 (6)

• Ahmadi, P., Elagami, H., Dichgans, F., Schmidt, C., Gilfedder, B.S., Frei, S., Peiffer, S., Fleckenstein, J.H. (2022):
  Systematic evaluation of physical parameters affecting the terminal cettling velocity of microplastic particles in lakes using CFD
  Front. Environ. Sci. 10 , art. 875220
  10.3389/fenvs.2022.875220
• Jähkel, A., Graeber, D., Fleckenstein, J.H., Schmidt, C. (2022):
  Hydrologic turnover matters – gross gains and losses of six first‐order streams across contrasting landscapes and flow regimes
  Water Resour. Res. 58 (7), e2022WR032129
  10.1029/2022WR032129
• Jimenez-Fernandez, O., Schwientek, M., Osenbrück, K., Glaser, C., Schmidt, C., Fleckenstein, J.H. (2022):
  Groundwater-surface water exchange as key control for instream and groundwater nitrate concentrations along a first-order agricultural stream
  Hydrol. Process. 36 (2), e14507
  10.1002/hyp.14507
• Laube, G., Schmidt, C., Fleckenstein, J.H. (2022):
  A systematic model-based evaluation of the influence of hydraulic conductivity, heterogeneity and domain depth on hyporheic nutrient transformation
  Adv. Water Resour. 159 , art. 104087
  10.1016/j.advwatres.2021.104087
• Nogueira, G.E.H., Schmidt, C., Partington, D., Brunner, P., Fleckenstein, J.H. (2022):
  Spatiotemporal variations in water sources and mixing spots in a riparian zone
  Hydrol. Earth Syst. Sci. 26 (7), 1883 - 1905
  10.5194/hess-26-1883-2022
• Sunjidmaa, N., Mendoza-Lera, C., Hille, S., Schmidt, C., Borchardt, D., Graeber, D. (2022):
  Carbon limitation may override fine-sediment induced alterations of hyporheic nitrogen and phosphorus dynamics
  Sci. Total Environ. 837 , art. 155689
  10.1016/j.scitotenv.2022.155689

2021 (5)

• Meijer, L.J.J., van Emmerik, T., van der Ent, R., Schmidt, C., Lebreton, L. (2021):
  More than 1000 rivers account for 80% of global riverine plastic emissions into the ocean
  Sci. Adv. 7 (18), eaaz5803
  10.1126/sciadv.aaz5803
• Movahedi, N., Dehghani, A.A., Schmidt, C., Trauth, N., Pasternack, G.B., Stewardson, M.J., Halghi, M.M. (2021):
  Hyporheic exchanges due to channel bed and width undulations
  Adv. Water Resour. 149 , art. 103857
  10.1016/j.advwatres.2021.103857
• Nogueira, G.E.H., Schmidt, C., Brunner, P., Graeber, D., Fleckenstein, J.H. (2021):
  Transit-time and temperature control the spatial patterns of aerobic respiration and denitrification in the riparian zone
  Water Resour. Res. 57 (12), e2021WR030117
  10.1029/2021WR030117
• Nogueira, G.E.H., Schmidt, C., Trauth, N., Fleckenstein, J.H. (2021):
  Seasonal and short‐term controls of riparian oxygen dynamics and the implications for redox processes
  Hydrol. Process. 35 (2), e14055
  10.1002/hyp.14055
• Zhang, Z.-Y., Schmidt, C., Nixdorf, E., Kuang, X., Fleckenstein, J.H. (2021):
  Effects of heterogeneous stream-groundwater exchange on the source composition of stream discharge and solute load
  Water Resour. Res. 57 (8), e2020WR029079
  10.1029/2020WR029079

2020 (1)

• Schmidt, C., Kumar, R., Yang, S., Büttner, O. (2020):
  Microplastic particle emission from wastewater treatment plant effluents into river networks in Germany: Loads, spatial patterns of concentrations and potential toxicity
  Sci. Total Environ. 737 , art. 139544
  10.1016/j.scitotenv.2020.139544

2019 (4)

• Boodoo, K.S., Schelker, J., Trauth, N., Battin, T.J., Schmidt, C. (2019):
  Sources and variability of CO₂ in a pre‐alpine stream gravel bar
  Hydrol. Process. 33 (17), 2279 - 2299
  10.1002/hyp.13450
• Graeber, D., Gücker, B., Wild, R., Wells, N.S., Anlanger, C., Kamjunke, N., Norf, H., Schmidt, C., Brauns, M. (2019):
  Biofilm-specific uptake does not explain differences in whole-stream DOC tracer uptake between a forest and an agricultural stream
  Biogeochemistry 144 (1), 85 - 101
  10.1007/s10533-019-00573-6
• Mahmood, M.N., Schmidt, C., Fleckenstein, J.H., Trauth, N. (2019):
  Modeling the impact of stream discharge events on riparian solute dynamics
  Groundwater 57 (1), 140 - 152
  10.1111/gwat.12664
• Wagner, S., Klöckner, P., Stier, B., Römer, M., Seiwert, B., Reemtsma, T., Schmidt, C. (2019):
  Relationship between discharge and river plastic concentrations in a rural and an urban catchment
  Environ. Sci. Technol. 53 (17), 10082 - 10091
  10.1021/acs.est.9b03048

2018 (3)

• Laube, G., Schmidt, C., Fleckenstein, J.H. (2018):
  The systematic effect of streambed conductivity heterogeneity on hyporheic flux and residence time
  Adv. Water Resour. 122 , 60 - 69
  10.1016/j.advwatres.2018.10.003
• Mader, M., Roberts, A.M., Porst, D., Schmidt, C., Trauth, N., van Geldern, R., Barth, J.A.C. (2018):
  River recharge versus O₂ supply from the unsaturated zone in shallow riparian groundwater: A case study from the Selke River (Germany)
  Sci. Total Environ. 634 , 374 - 381
  10.1016/j.scitotenv.2018.03.230
• Newcomer, M.E., Hubbard, S.S., Fleckenstein, J.H., Maier, U., Schmidt, C., Thullner, M., Ulrich, C., Flipo, F., Rubin, Y. (2018):
  Influence of hydrological perturbations and riverbed sediment characteristics on hyporheic zone respiration of CO₂ and N₂
  J. Geophys. Res.-Biogeosci. 123 (3), 902 - 922
  10.1002/2017JG004090

2017 (7)

• Boodoo, K., Trauth, N., Schmidt, C., Schelker, J., Battin, T.J. (2017):
  Gravel bars are sites of increased CO₂ outgassing in stream corridors
  Sci. Rep. 7 , art. 14401
  10.1038/s41598-017-14439-0
• Brandt, T., Vieweg, M., Laube, G., Schima, R., Goblirsch, T., Fleckenstein, J.H., Schmidt, C. (2017):
  Automated in situ oxygen profiling at aquatic-terrestrial interfaces
  Environ. Sci. Technol. 51 (17), 9970 - 9978
  10.1021/acs.est.7b01482
• Krause, S., Lewandowski, J., Grimm, N.B., Hannah, D.M., Pinay, G., McDonald, K., Martí, E., Argerich, A., Pfister, L., Klaus, J., Battin, T., Larned, S.T., Schelker, J., Fleckenstein, J.H., Schmidt, C., Rivett, M.O., Watts, G., Sabater, F., Sorolla, A., Turk, V. (2017):
  Ecohydrological interfaces as hot spots of ecosystem processes
  Water Resour. Res. 53 (8), 6359 - 6376
  10.1002/2016WR019516
• Mader, M., Schmidt, C., van Geldern, R., Barth, J.A.C. (2017):
  Dissolved oxygen in water and its stable isotope effects: A review
  Chem. Geol. 473 , 10 - 21
  10.1016/j.chemgeo.2017.10.003
• Munz, M., Oswald, S.E., Schmidt, C. (2017):
  Coupled long-term simulation of reach-scale water and heat fluxes across the river-groundwater interface for retrieving hyporheic residence times and temperature dynamics
  Water Resour. Res. 53 (11), 8900 - 8924
  10.1002/2017WR020667
• Munz, M., Schmidt, C. (2017):
  Estimation of vertical water fluxes from temperature time series by the inverse numerical computer program FLUX-BOT
  Hydrol. Process. 31 (15), 2713 - 2724
  10.1002/hyp.11198
• Schmidt, C., Krauth, T., Wagner, S. (2017):
  Export of plastic debris by rivers into the sea
  Environ. Sci. Technol. 51 (21), 12246 - 12253
  10.1021/acs.est.7b02368

2016 (7)

• Fox, A., Laube, G., Schmidt, C., Fleckenstein, J.H., Arnon, S. (2016):
  The effect of losing and gaining flow conditions on hyporheic exchange in heterogeneous streambeds
  Water Resour. Res. 52 (9), 7460 - 7477
  10.1002/2016WR018677
• Munz, M., Oswald, S.E., Schmidt, C. (2016):
  Analysis of riverbed temperatures to determine the geometry of subsurface water flow around in-stream geomorphological structures
  J. Hydrol. 539 , 74 - 87
  10.1016/j.jhydrol.2016.05.012
• Musolff, A., Schmidt, C., Rode, M., Lischeid, G., Weise, S.M., Fleckenstein, J.H. (2016):
  Groundwater head controls nitrate export from an agricultural lowland catchment
  Adv. Water Resour. 96 , 95 - 107
  10.1016/j.advwatres.2016.07.003
• Newcomer, M.E., Hubbard, S.S., Fleckenstein, J.H., Maier, U., Schmidt, C., Thullner, M., Ulrich, C., Flipo, N., Rubin, Y. (2016):
  Simulating bioclogging effects on dynamic riverbed permeability and infiltration
  Water Resour. Res. 52 (4), 2883 - 2900
  10.1002/2015wr018351
• Schmadel, N.M., Ward, A.S., Kurz, M.J., Fleckenstein, J.H., Zarnetske, J.P., Hannah, D.M., Blume, T., Vieweg, M., Blaen, P.J., Schmidt, C., Knapp, J.L.A., Klaar, M.J., Romeijn, P., Datry, T., Keller, T., Folegot, S., Marruedo Arricibita, A.I., Krause, S. (2016):
  Stream solute tracer timescales changing with discharge and reach length confound process interpretation
  Water Resour. Res. 52 (4), 3227 - 3245
  10.1002/2015wr018062
• Schneidewind, U., van Berkel, M., Anibas, C., Vandersteen, G., Schmidt, C., Joris, I., Seuntjens, P., Batelaan, O., Zwart, J. (2016):
  LPMLE3: A novel 1-D approach to study water flow in streambeds using heat as a tracer
  Water Resour. Res. 52 (8), 6596 - 6610
  10.1002/2015WR017453
• Vieweg, M., Kurz, M.J., Trauth, N., Fleckenstein, J.H., Musolff, A., Schmidt, C. (2016):
  Estimating time-variable aerobic respiration in the streambed by combining electrical conductivity and dissolved oxygen time series
  J. Geophys. Res.-Biogeosci. 121 (8), 2199 - 2215
  10.1002/2016JG003345

2015 (3)

• Musolff, A., Schmidt, C., Selle, B., Fleckenstein, J.H. (2015):
  Catchment controls on solute export
  Adv. Water Resour. 86 (Part A), 133 - 146
  10.1016/j.advwatres.2015.09.026
• Trauth, N., Schmidt, C., Vieweg, M., Oswald, S.E., Fleckenstein, J.H. (2015):
  Hydraulic controls of in-stream gravel bar hyporheic exchange and reactions
  Water Resour. Res. 51 (4), 2243 - 2263
  10.1002/2014WR015857
• Vandersteen, G., Schneidewind, U., Anibas, C., Schmidt, C., Seuntjens, P., Batelaan, O. (2015):
  Determining groundwater-surface water exchange from temperature-time series: Combining a local polynomial method with a maximum likelihood estimator
  Water Resour. Res. 51 (2), 922 - 939
  10.1002/2014WR015994

2014 (2)

• Schmidt, C., Büttner, O., Musolff, A., Fleckenstein, J.H. (2014):
  A method for automated, daily, temperature-based vertical streambed water-fluxes
  Fundam. Appl. Limnol. 184 (3), 173 - 181
  10.1127/1863-9135/2014/0548
• Trauth, N., Schmidt, C., Vieweg, M., Maier, U., Fleckenstein, J.H. (2014):
  Hyporheic transport and biogeochemical reactions in pool-riffle systems under varying ambient groundwater flow conditions
  J. Geophys. Res.-Biogeosci. 119 (5), 910 - 928
  10.1002/2013JG002586

2013 (3)

• Tischer, K., Kleinsteuber, S., Schleinitz, K.M., Fetzer, I., Spott, O., Stange, F., Lohse, U., Franz, J., Neumann, F., Gerling, S., Schmidt, C., Hasselwander, E., Harms, H., Wendeberg, A. (2013):
  Microbial communities along biogeochemical gradients in a hydrocarbon-contaminated aquifer
  Environ. Microbiol. 15 (9), 2603 - 2615
  10.1111/1462-2920.12168
• Trauth, N., Schmidt, C., Maier, U., Vieweg, M., Fleckenstein, J.H. (2013):
  Coupled 3-D stream flow and hyporheic flow model under varying stream and ambient groundwater flow conditions in a pool-riffle system
  Water Resour. Res. 49 (9), 5834 - 5850
  10.1002/wrcr.20442
• Vieweg, M., Trauth, N., Fleckenstein, J.H., Schmidt, C. (2013):
  Robust optode-based method for measuring in situ oxygen profiles in gravelly streambeds
  Environ. Sci. Technol. 47 (17), 9858 - 9865
  10.1021/es401040w

2012 (1)

• Schmidt, C., Musolff, A., Trauth, N., Vieweg, M., Fleckenstein, J.H. (2012):
  Transient analysis of fluctuations of electrical conductivity as tracer in the stream bed
  Hydrol. Earth Syst. Sci. 16 (10), 3689 - 3697
  10.5194/hess-16-3689-2012

2011 (3)

• Munz, M., Oswald, S.E., Schmidt, C. (2011):
  Sand box experiments to evaluate the influence of subsurface temperature probe design on temperature based water flux calculation
  Hydrol. Earth Syst. Sci. 15 (11), 3495 - 3510
  10.5194/hess-15-3495-2011
• Ravazzani, G., Giudici, I., Schmidt, C., Mancini, M. (2011):
  Evaluating the potential of quarry lakes for supplemental irrigation
  J. Irrig. Drainage Eng-ASCE 137 (8), 564 - 571
  10.1061/(ASCE)IR.1943-4774.0000321
• Schmidt, C., Martienssen, M., Kalbus, E. (2011):
  Influence of water flux and redox conditions on chlorobenzene concentrations in a contaminated streambed
  Hydrol. Process. 25 (2), 234 - 245
  10.1002/hyp.7839

2010 (1)

• Schornberg, C., Schmidt, C., Kalbus, E., Fleckenstein, J.H. (2010):
  Simulating the effects of geologic heterogeneity and transient boundary conditions on streambed temperatures - Implications for temperature-based water flux calculations
  Adv. Water Resour. 33 (11), 1309 - 1319
  10.1016/j.advwatres.2010.04.007

2009 (2)

• Fleckenstein, J.H., Schmidt, C. (2009):
  Themenheft: Grundwasser-Oberflächenwasser-Interaktionen. Theme Note: Ground water-surface water-interactions
  Grundwasser 14 (3), 161 - 162
  10.1007/s00767-009-0115-z
• Kalbus, E., Schmidt, C., Molson, J.W., Reinstorf, F., Schirmer, M. (2009):
  Influence of aquifer and streambed heterogeneity on the distribution of groundwater discharge
  Hydrol. Earth Syst. Sci. 13 (1), 69 - 77
  10.5194/hess-13-69-2009

2008 (2)

• Kalbus, E., Schmidt, C., Reinstorf, F., Krieg, R., Schirmer, M. (2008):
  Wie Flussbett-Temperaturdaten zur Ermittlung der Aquifer-Heterogenität beitragen können (How streambed temperatures can contribute to the determination of aquifer heterogeneity)
  Grundwasser 13 (2), 91 - 100
  10.1007/s00767-008-0066-9
• Schmidt, C., Krieg, R., Bayer-Raich, M., Leschik, S., Kalbus, E., Reinstorf, F., Martienssen, M., Schirmer, M. (2008):
  Schadstoffmassenströme zwischen Grundwasser, Flussbettsedimenten und Oberflächenwasser am regional kontaminierten Standort Bitterfeld (Contaminant mass flow rates between groundwater, streambed sediments and surface water at the regionally contaminated site Bitterfeld)
  Grundwasser 13 (3), 133 - 146
  10.1007/s00767-008-0076-7

2007 (3)

• Kalbus, E., Schmidt, C., Bayer-Raich, M., Leschik, S., Reinstorf, F., Balcke, G.U., Schirmer, M. (2007):
  New methodology to investigate potential contaminant mass fluxes at the stream-aquifer interface by combining integral pumping tests and streambed temperatures
  Environ. Pollut. 148 (3), 808 - 816
  10.1016/j.envpol.2007.01.042
• Petelet-Giraud, E., Négrel, P., Gourcy, L., Schmidt, C., Schirmer, M. (2007):
  Geochemical and isotopic constraints on groundwater-surface water interactions in a highly anthropized site. The Wolfen/Bitterfeld megasite (Mulde subcatchment, Germany)
  Environ. Pollut. 148 (3), 707 - 717
  10.1016/j.envpol.2007.01.030
• Schmidt, C., Conant jr., B., Bayer-Raich, M., Schirmer, M. (2007):
  Evaluation and field-scale application of an analytical method to quantify groundwater discharge using mapped streambed temperatures
  J. Hydrol. 347 (3-4), 292 - 307
  10.1016/j.jhydrol.2007.08.022

2006 (1)

• Schmidt, C., Bayer-Raich, M., Schirmer, M. (2006):
  Characterization of spatial heterogeneity of groundwater-stream water interactions using multiple depth streambed temperature measurements at the reach scale
  Hydrol. Earth Syst. Sci. 10 (6), 849 - 859
  10.5194/hess-10-849-2006