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Research

Dr Sami Ullah

Formerly at Lancaster University

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  1. 2015
  2. Published

    Diffusive equilibrium in thin films provides evidence of suppression of hyporheic exchange and large-scale nitrate transformation in a groundwater-fed river

    Byrne, P., Zhang, H., Ullah, S., Binley, A., Heathwaite, L., Heppell, C. M., Lansdown, K. & Trimmer, M., 15/03/2015, In: Hydrological Processes. 29, 6, p. 1385-1396 12 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  3. 2014
  4. Published

    Control of river stage on the reactive chemistry of the hyporheic zone

    Byrne, P., Binley, A., Heathwaite, L., Ullah, S., Heppell, C. M., Lansdown, K., Zhang, H., Trimmer, M. & Keenan, P., 15/08/2014, In: Hydrological Processes. 28, 17, p. 4766-4779 14 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  5. Published

    Fine-scale in situ measurement of riverbed nitrate production and consumption in an armored permeable riverbed

    Lansdown, K., Heppell, C. M., Dossena, M., Ullah, S., Heathwaite, A. L., Binley, A., Zhang, H. & Trimmer, M., 15/04/2014, In: Environmental Science and Technology. 48, 8, p. 4425-4434 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Published

    Influence of emergent vegetation on nitrate cycling in sediments of a groundwater-fed river

    Ullah, S., Zhang, H., Heathwaite, A. L., Heppell, C., Lansdown, K., Binley, A. & Trimmer, M., 04/2014, In: Biogeochemistry. 118, 1-3, p. 121-134 14 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  7. Published

    Interpreting spatial patterns in redox and coupled water–nitrogen fluxes in the streambed of a gaining river reach

    Heppell, C. M., Heathwaite, A. L., Binley, A., Byrne, P., Ullah, S., Lansdown, K., Keenan, P., Trimmer, M. & Zhang, H., 03/2014, In: Biogeochemistry. 117, 2-3, p. 491-509 19 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  8. 2013
  9. Published

    Revealing the spatial variability of water fluxes at the groundwater-surface water interface

    Binley, A., Ullah, S., Heathwaite, L., Heppell, C. M., Byrne, P., Lansdown, K., Trimmer, M. & Zhang, H., 07/2013, In: Water Resources Research. 49, 7, p. 3972-3992 15 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  10. Published

    Passive pore water sampling provides evidence of suppression of hyporheic exchange and ntrate transformation in a groundwater-fed river

    Byrne, P., Zhang, H., Heathwaite, L., Binley, A., Ullah, S., Kaeser, D., Heppell, C. M., Lansdown, K. & Trimmer, M., 2013. 8 p.

    Research output: Contribution to conference - Without ISBN/ISSN › Conference paper

  11. 2012
  12. Published

    In situ measurement of redox sensitive solutes at high spatial resolution in a riverbed using Diffusive Equilibrium in Thin Films (DET)

    Ullah, S., Zhang, H., Heathwaite, L., Binley, A., Lansdown, K., Heppell, C. M. & Trimmer, M., 12/2012, In: Ecological Engineering. 49, p. 18-26 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  13. Published

    Characterization of the key pathways of dissimilatory nitrate reduction and their response to complex organic substrates in hyporheic sediments

    Lansdown, K., Trimmer, M., Heppell, C. M., Sgouridis, F., Ullah, S., Heathwaite, L., Binley, A. & Zhang, H., 03/2012, In: Limnology and Oceanography. 57, 2, p. 387-400 14 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  14. 2010
  15. Published

    Carbon dioxide, methane, and nitrous oxide exchanges in an age-sequence of temperate pine forests.

    Peichle, M., Arian, A., Ullah, S. & Moore, T., 08/2010, In: Global Change Biology. 16, 8, p. 2198-2212 15 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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