Items where NERC Author is "Sorensen, James"

2025

Abdou Mahaman, Rabilou; Nazoumou, Yahaya ORCID: https://orcid.org/0000-0003-3015-7650; Favreau, Guillaume ORCID: https://orcid.org/0000-0001-7358-9301; Issoufou Ousmane, Boukari ORCID: https://orcid.org/0000-0003-0618-9695; Boucher, Marie ORCID: https://orcid.org/0000-0003-4994-2448; Abdou Babaye, Maman Sani; Sorensen, James P.R. ORCID: https://orcid.org/0000-0002-1526-4071; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Taylor, Richard G. ORCID: https://orcid.org/0000-0002-9867-8033. 2025 Hydrogeological dynamics of a large alluvial aquifer in the dryland Iullemmeden Basin of Niger. Hydrological Sciences Journal. 14, pp. 10.1080/02626667.2025.2542476

2024

Habib, Abrar; Paschalis, Athanasios; Onof, Christian; Bloomfield, John P. ORCID: https://orcid.org/0000-0002-5730-1723; Sorensen, James P.R.; Butler, Adrian P.. 2024 Study of the effect of local forcing on the fractal behaviour of shallow groundwater levels in a riparian aquifer. Hydrological Processes, 38 (8), e15253. 10.1002/hyp.15253

Harris, N.A.; Sorensen, J.P.R.; Marchant, B.; Old, G.H. ORCID: https://orcid.org/0000-0002-4713-1070; Naden, P.S.; Bowes, M.J. ORCID: https://orcid.org/0000-0002-0673-1934; Scarlett, P.M.; Nicholls, D.J.E.; Armstrong, L.K.; Wickham, H.D.; Read, D.S. ORCID: https://orcid.org/0000-0001-8546-5154; Lapworth, D. ORCID: https://orcid.org/0000-0001-7838-7960; Bond, T.; Pond, K.. 2024 Temporal drivers of tryptophan-like fluorescent dissolved organic matter along a river continuum. Science of The Total Environment, 928, 172285. 13, pp. 10.1016/j.scitotenv.2024.172285

Sorensen, James P.R.; Gahi, Narcisse Z.; Guug, Samuel; Verhoef, Anne; Koïta, Mahamadou; Sandwidi, Wennegouda J.P.; Agyekum, William A.; Okrah, Collins; Darling, W. George; Lawson, Fabrice M.A.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Vouillamoz, Jean-Michel; Macdonald, David M.J.. 2024 Groundwater recharge is diffuse in semi-arid African drylands: Evidence from highly instrumented observatories. Journal of Hydrology, 636, 131227. 10.1016/j.jhydrol.2024.131227

2023

Lindle, J.; Villholth, K.G.; Ebrahim, G.Y.; Sorensen, J.P.R.; Taylor, R.G.; Jensen, K.H.. 2023 Groundwater recharge influenced by ephemeral river flow and land use in the semiarid Limpopo Province of South Africa. Hydrogeology Journal, 31 (8). 2291-2306. 10.1007/s10040-023-02682-x

Issoufou Ousmane, Boukari; Nazoumou, Yahaya; Favreau, Guillaume; Abdou Babaye, Maman Sani; Abdou Mahaman, Rabilou; Boucher, Marie; Sorensen, James P.R.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Taylor, Richard Graham. 2023 Groundwater quality and its implications for domestic and agricultural water supplies in a semi-arid river basin of Niger. Environmental Earth Sciences, 82 (13), 329. 10.1007/s12665-023-11016-9

Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Boving, Thomas; Brauns, Bentje; Dottridge, Jane; Hynds, Paul; Kebede, Seifu; Kreamer, David; Misstear, Bruce; Mukherjee, Abhijit; Re, Viviana; Sorensen, James; Vargas, Claudia Ruz. 2023 Groundwater quality: global challenges, emerging threats and novel approaches. Hydrogeology Journal, 31. 15-18. 10.1007/s10040-022-02542-0

2022

Nyenje, Philip M.; Ocoromac, Denis; Tumwesige, Stephen; Ascott, Matt J.; Sorensen, James P.R.; Newell, Andrew J.; Macdonald, David M.J.; Gooddy, Daren C.; Tindimugaya, Callist; Kulabako, Robinah N.; Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; Foppen, Jan Willem. 2022 Hydrogeology of an urban weathered basement aquifer in Kampala, Uganda. Hydrogeology Journal, 30. 1469-1487. 10.1007/s10040-022-02474-9

Habib, Abrar; Butler, Adrian P.; Bloomfield, John P. ORCID: https://orcid.org/0000-0002-5730-1723; Sorensen, James P.R.. 2022 Fractal domain refinement of models simulating hydrological time series. Hydrological Sciences Journal, 67 (9). 1342-1355. 10.1080/02626667.2022.2084342

Cook, P.A.; Black, E.C.L.; Verhoef, A.; Macdonald, D.M.J.; Sorensen, J.P.R.. 2022 Projected increases in potential groundwater recharge and reduced evapotranspiration under future climate conditions in West Africa. Journal of Hydrology: Regional Studies, 41, 101076. 10.1016/j.ejrh.2022.101076

2021

Sorensen, James P.R.; Aldous, Phil; Bunting, Sarah Y.; McNally, Susan; Townsend, Barry R.; Barnett, Megan J.; Harding, Tessa; La Ragione, Roberto M.; Stuart, Marianne E.; Tipper, Holly J. ORCID: https://orcid.org/0000-0002-1857-9204; Pedley, Steve. 2021 Seasonality of enteric viruses in groundwater-derived public water sources. Water Research, 207, 117813. 11, pp. 10.1016/j.watres.2021.117813

Sorensen, James P.R.; Davies, Jeff; Ebrahim, Girma Y.; Lindle, John; Marchant, Ben P.; Ascott, Matthew J.; Bloomfield, John P. ORCID: https://orcid.org/0000-0002-5730-1723; Cuthbert, Mark O.; Holland, Martin; Jensen, K. H.; Shamsudduha, M.; Villholth, Karen G.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Taylor, Richard G.. 2021 The influence of groundwater abstraction on interpreting climate controls and extreme recharge events from well hydrographs in semi-arid South Africa. Hydrogeology Journal, 29. 2773-2787. 10.1007/s10040-021-02391-3

Sorensen, James. 2021 Fluorescence: a rapid and resilient indicator of faecal contamination risk in drinking water. [Lecture] In: 8th African Water Week and 6th AfricaSan, Online, 22-26 Nov 2021. (Unpublished)

Sorensen, James P.R.; Nayebare, Jacintha; Carr, Andrew F.; Lyness, Robert; Campos, Luiza C.; Ciric, Lena; Goodall, Tim ORCID: https://orcid.org/0000-0002-1526-4071; Kulabako, Robinah; Rushworth Curran, Catherine M.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Owor, Michael; Read, Daniel S. ORCID: https://orcid.org/0000-0001-8546-5154; Taylor, Richard G.. 2021 In-situ fluorescence spectroscopy is a more rapid and resilient indicator of faecal contamination risk in drinking water than faecal indicator organisms. Water Research, 206, 117734. 11, pp. 10.1016/j.watres.2021.117734

McLachlan, Paul; Blanchy, Guillaume; Chambers, Jonathan; Sorensen, James; Uhlemann, Sebastian; Wilkinson, Paul; Binley, Andrew. 2021 The application of electromagnetic induction methods to reveal the hydrogeological structure of a riparian wetland. Water Resources Research, 57 (6), e2020WR029221. 10.1029/2020WR029221

MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Lark, R. Murray; Taylor, Richard G.; Abiye, Tamiru; Fallas, Helen C.; Favreau, Guillaume; Goni, Ibrahim B.; Kebede, Seifu; Scanlon, Bridget; Sorensen, James P.R.; Tijani, Moshood; Upton, Kirsty A.; West, Charles. 2021 Mapping groundwater recharge in Africa from ground observations and implications for water security. Environmental Research Letters, 16 (3), 034012. 10.1088/1748-9326/abd661

Newell, Andrew J.; Woods, Mark A.; Butcher, Andrew S.; Sorensen, James R.. 2021 Report on geophysical logging and core description from five new Thames Water boreholes in the Chalk Group along the River Kennet, Marlborough, Wiltshire. Nottingham, UK, British Geological Survey, 17pp. (CR/22/010N) (Unpublished)

2020

Ascott, M.J.; Macdonald, D.M.J.; Black, E.; Verhoef, A.; Nakohoun, P.; Tirogo, J.; Sandwidi, W. J. P.; Bliefernicht, J.; Sorensen, J.P.R.; Bossa, A. Y.. 2020 In‐situ observations and lumped parameter model reconstructions reveal intra‐annual to multi‐decadal variability in groundwater levels in sub‐Saharan Africa. Water Resources Research, 56 (12), e2020WR028056. 10.1029/2020WR028056

Sorensen, James P.R.; Diaw, Mor Talla; Pouye, Abdoulaye; Roffo, Raphaëlle; Diongue, Djim M.L.; Faye, Seynabou C.; Gaye, Cheikh B.; Fox, Bethany G.; Goodall, Timothy ORCID: https://orcid.org/0000-0002-1526-4071; Lapworth, Daniel J. ORCID: https://orcid.org/0000-0001-7838-7960; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Read, Daniel S. ORCID: https://orcid.org/0000-0001-8546-5154; Ciric, Lena; Taylor, Richard G.. 2020 In-situ fluorescence spectroscopy indicates total bacterial abundance and dissolved organic carbon. Science of the Total Environment, 738, 139419. 10, pp. 10.1016/j.scitotenv.2020.139419

Sorensen, James P.R.; Carr, Andrew F.; Nayebare, Jacintha; Diongue, Djim M.L.; Pouye, Abdoulaye; Roffo, Raphaëlle; Gwengweya, Gloria; Ward, Jade S.T.; Kanoti, Japhet; Okotto-Okotto, Joseph; van der Marel, Laura; Ciric, Lena; Faye, Seynabou C.; Gaye, Cheikh B.; Goodall, Timothy ORCID: https://orcid.org/0000-0002-1526-4071; Kulabako, Robinah; Lapworth, Daniel J. ORCID: https://orcid.org/0000-0001-7838-7960; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Monjerezi, Maurice; Olago, Daniel; Owor, Michael; Read, Daniel S. ORCID: https://orcid.org/0000-0001-8546-5154; Taylor, Richard G.. 2020 Tryptophan-like and humic-like fluorophores are extracellular in groundwater: implications as real-time faecal indicators. Scientific Reports, 10, 15379. 9, pp. 10.1038/s41598-020-72258-2

McDonough, Liza K.; Santos, Isaac R.; Andersen, Martin S.; O'Carroll, Denis M.; Rutlidge, Helen; Meredith, Karina; Oudone, Phetdala; Bridgeman, John; Gooddy, Daren C.; Sorensen, James P.R.; Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Ward, Jade; Baker, Andy. 2020 Changes in global groundwater organic carbon driven by climate change and urbanization. Nature Communications, 11, 1279. 10, pp. 10.1038/s41467-020-14946-1

Sorensen, James; Taylor, Richard. 2020 Real-time indication of faecally contaminated drinking water with fluorescence spectroscopy: towards understanding the causation. [Poster] In: 20th The African Water Association (AfWA) ICE, Kampala, Uganda, 24-27 Feb 2020. British Geological Survey. (Unpublished)

Sorensen, James. 2020 Real-time indication of faecally contaminated drinking water with TLF. [Lecture] In: Tryptophan Fluorescence 2020, London, UK, 23 Jan 2020.

2019

Sorensen, James. 2019 Real-time indication of faecally contaminated drinking water with fluorescence spectroscopy: towards understanding the causation. [Lecture] In: 46th IAH Congress, Malaga, Spain, 23-27 Sept 2019. British Geological Survey. (Unpublished)

Sorensen, James. 2019 A superior indicator of microbial risk: real-time fluorescence spectroscopy. [Poster] In: 46th IAH Congress, Malaga, Spain, 23-27 Sept 2019. British Geological Survey. (Unpublished)

Sorensen, James; Olago, Daniel; Dulo, Simeon; Kanoti, Japhet; Gaye, Cheikh; Faye, Seynabou Cisse; Pouye, Abdoulaye; Owor, Michael; Nayebare, Jacintha; Kulabako, Robinah; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Gwengweya, Gloria; Read, Daniel ORCID: https://orcid.org/0000-0001-8546-5154; Ward, Jade; Taylor, Richard. 2019 Real-time indication of faecally contaminated drinking water with fluorescence spectroscopy: towards understanding the causation. [Lecture] In: 10th International Groundwater Quality Conference (GQ 2019), Liège, Belgium, 9-12 Sept 2019. (Unpublished)

Cuthbert, Mark O.; Taylor, Richard G.; Favreau, Guillaume; Todd, Martin C.; Shamsudduha, Mohammad; Villholth, Karen G.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Scanlon, Bridget R.; Kotchoni, D. O. Valerie; Vouillamoz, Jean-Michel; Lawson, Fabrice M.A.; Adjomayi, Philippe Armand; Kashaigili, Japhet; Seddon, David; Sorensen, James P.R.; Ebrahim, Girma Yimer; Owor, Michael; Nyenje, Philip M.; Nazoumou, Yahaya; Goni, Ibrahim; Ousmane, Boukari Issoufou; Sibanda, Tenant; Ascott, Matthew J.; Macdonald, David M.J.; Agyekum, William; Koussoubé, Youssouf; Wanke, Heike; Kim, Hyungjun; Wada, Yoshihide; Lo, Min-Hui; Oki, Taikan; Kukuric, Neno. 2019 Observed controls on resilience of groundwater to climate variability in sub-Saharan Africa. Nature, 572 (7768). 230-234. 10.1038/s41586-019-1441-7

Sorensen, James. 2019 The use of fluorescence to monitor groundwater microbiological quality. [Lecture] In: Groundwater Quality: Public and private water supplies, London, UK, 15 March 2019. British Geological Survey. (Unpublished)

Kolusu, Seshagiri Rao; Shamsudduha, Mohammad; Todd, Martin C.; Taylor, Richard G.; Seddon, David; Kashaigili, Japhet J.; Ebrahim, Girma Y.; Cuthbert, Mark O.; Sorensen, James; Villholth, Karen G.; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; MacLeod, Dave A.. 2019 The El Niño event of 2015–2016: climate anomalies and their impact on groundwater resources in East and Southern Africa. Hydrology and Earth System Sciences, 23 (3). 1751-1762. 10.5194/hess-23-1751-2019

2018

Sorensen, James; Olago, Dan; Kanoti, Japhet; Gaye, Cheikh; Pouye, Abdoulaye; Owor, Michael; Nayebare, Jacintha; Kulabako, Robinah; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Read, Daniel ORCID: https://orcid.org/0000-0001-8546-5154; Taylor, Richard. 2018 Microbial characterization of groundwater in urban environments of Kenya, Senegal, and Uganda. [Lecture] In: 45th IAH Congress, Daejeon, South Korea, 9-14 Sept 2018. (Unpublished)

Sorensen, J.P.R.; Vivanco, A.; Ascott, M.J.; Gooddy, D.C.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Read, D.S. ORCID: https://orcid.org/0000-0001-8546-5154; Rushworth, C.M.; Bucknall, J.; Herbert, K.; Karapanos, I.; Gumm, L.P.; Taylor, R.G.. 2018 Online fluorescence spectroscopy for the real-time evaluation of the microbial quality of drinking water. Water Research, 137. 301-309. 10.1016/j.watres.2018.03.001

Sorensen, James. 2018 Fluorescence for monitoring the microbial quality of drinking water. [Lecture] In: Water & Health, SWIG, Bristol, UK, 31 Jan 2018. (Unpublished)

Ward, Jade; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Sorensen, James; Nowicki, Saskia. 2018 Assessing microbiological contamination in water sources: Field note on using the UviLux Tryptophan-Like Fluorescence (TLF) Probe. Nottingham, UK, British Geological Survey, 14pp. (OR/18/042) (Unpublished)

Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Sorensen, J.P.R.. 2018 BGS-UKRI briefing note: tryptophan-like fluorescence (TLF) as a rapid in-situ screening tool for assessing faecal contamination risk in groundwater. Wallingford, UK, British Geological Survey, 6pp. (OR/18/058) (Unpublished)

Sorensen, James P.R.; Baker, Andy; Cumberland, Susan A.; Lapworth, Dan J. ORCID: https://orcid.org/0000-0001-7838-7960; MacDonald, Alan M. ORCID: https://orcid.org/0000-0001-6636-1499; Pedley, Steve; Taylor, Richard G.; Ward, Jade S.T.. 2018 Real-time detection of faecally contaminated drinking water with tryptophan-like fluorescence: defining threshold values. Science of the Total Environment, 622-623. 1250-1257. 10.1016/j.scitotenv.2017.11.162

Sorensen, James. 2018 Real-time fluorescence for the improved monitoring of the microbial quality of drinking water. [Lecture] In: 45th IAH Congress, Daejeon, South Korea, 9-14 Sept 2018. (Unpublished)

McLachlan, Paul; Chambers, Jonathan; Uhlemann, Sebastian; Sorensen, James; Binley, Andrew. 2018 Structural and hydrological characterisation of a riparian wetland using electromagnetic induction and time lapse electrical resistivity tomography. [Lecture] In: AGU Fall Meeting 2018, Washington, D.C., USA, 10-14 Dec 2018. (Unpublished)

Darling, W.G.; Sorensen, J.P.R.; Newell, A.J.; Midgley, J.; Benhamza, M.. 2018 The age and origin of groundwater in the Great Western Erg sub-basin of the North-Western Sahara aquifer system: insights from Krechba, central Algeria. Applied Geochemistry, 96. 277-286. 10.1016/j.apgeochem.2018.07.016

2017

Sorensen, James. 2017 Tryptophan-like fluorescence: a real-time indicator of faecally contaminated drinking water. [Poster] In: Ineson Lecture 2017: Africa, Groundwater and the Sustainable Development Goals, London, UK, 25 Oct 2017. British Geological Survey. (Unpublished)

Habib, Abrar; Sorensen, James P.R.; Bloomfield, John P. ORCID: https://orcid.org/0000-0002-5730-1723; Muchan, Katie; Newell, Andrew J.; Butler, Adrian P.. 2017 Temporal scaling phenomena in groundwater-floodplain systems using robust detrended fluctuation analysis. Journal of Hydrology, 549. 715-730. 10.1016/j.jhydrol.2017.04.034

Mathias, Simon A.; Sorensen, James P.R.; Butler, Adrian P.. 2017 Soil moisture data as a constraint for groundwater recharge estimation. Journal of Hydrology, 552. 258-266. 10.1016/j.jhydrol.2017.06.040

2016

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, Ben; Pedley, Steve. 2016 Tryptophan-like fluorescence (TLF): an effective real-time indicator of faecal contamination in drinking water. [Poster] In: UNICEF Stakeholder Consultation on Real Time E. coli Testing Devices, Copenhagen, Denmark, 22 Nov 2016. (Unpublished)

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, Ben; Pedley, Steve. 2016 Tryptophan-like fluorescence: an effective real-time indicator of faecal contamination in drinking water. [Poster] In: 43rd IAH Congress, Montpellier, France, 25-29 Sept 2016. British Geological Survey. (Unpublished)

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, Ben; Pedley, Steve. 2016 Is the provision of on-site sanitation a threat to rural domestic water supplies in India? [Lecture] In: 43rd IAH Congress, Montpellier, France, 25-29 Sept 2016. (Unpublished)

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, Ben; Pedley, Steve. 2016 Tryptophan-like fluorescence (TLF: an effective real-time indicator of faecal contamination in drinking water. [Poster] In: Nutrients and Fluorescence: University of the West of England, Bristol, UK, 2016. British Geological Survey. (Unpublished)

Uhlemann, S.S.; Sorensen, J.P.R.; House, A.R.; Wilkinson, P.B.; Roberts, C.; Gooddy, D.C.; Binley, A.M.; Chambers, J.E.. 2016 Integrated time-lapse geoelectrical imaging of wetland hydrological processes. Water Resources Research, 52 (3). 1607-1625. 10.1002/2015WR017932

Maurice, L.; Robertson, A.R.; White, D.; Knight, L.; Johns, T.; Edwards, F.; Arietti, M.; Sorensen, J.P.R.; Weitowitz, D.; Marchant, B.P.; Bloomfield, J.P. ORCID: https://orcid.org/0000-0002-5730-1723. 2016 The invertebrate ecology of the Chalk aquifer in England (UK). Hydrogeology Journal, 24 (2). 459-474. 10.1007/s10040-015-1334-2

Newell, Andrew J.; Vane, Christopher H. ORCID: https://orcid.org/0000-0002-8150-3640; Sorensen, James P.R.; Moss-Hayes, Vicky; Gooddy, Daren C.. 2016 Long-term Holocene groundwater fluctuations in a chalk catchment: evidence from Rock-Eval pyrolysis of riparian peats. Hydrological Processes, 30 (24). 4556-4567. 10.1002/hyp.10903

House, A.R.; Thompson, J.R.; Sorensen, J.P.R.; Roberts, C.; Acreman, M.C.. 2016 Modelling groundwater/surface-water interaction in a managed riparian chalk valley wetland. Hydrological Processes, 30 (3). 447-462. 10.1002/hyp.10625

2015

Newell, Andrew J.; Sorensen, James P.R.; Chambers, Jonathan E.; Wilkinson, Paul B.; Uhlemann, Sebastian; Roberts, Colin; Gooddy, Daren C.; Vane, Christopher H. ORCID: https://orcid.org/0000-0002-8150-3640; Binley, Andrew. 2015 Fluvial response to Late Pleistocene and Holocene environmental change in a Thames chalkland headwater: the Lambourn of southern England. Proceedings of the Geologists' Association, 126 (6). 683-697. 10.1016/j.pgeola.2015.08.008

Sorensen, J.P.R.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Read, D.S. ORCID: https://orcid.org/0000-0001-8546-5154; Nkhuwa, D.C.W.; Bell, R.A.; Chibesa, M.; Chirwa, M.; Kabika, J.; Liemisa, M.; Pedley, S.. 2015 Tracing enteric pathogen contamination in sub-Saharan African groundwater. Science of the Total Environment, 538. 888-895. 10.1016/j.scitotenv.2015.08.119

Sorensen, J.P.R.; Sadhu, A.; Sampath, G.; Sugden, S.; Dutta Gupta, S.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, B.P.; Pedley, S.. 2015 Are sanitation interventions a threat to drinking water supplies in rural India? An application of tryptophan-like fluorescence. Water Research, 88. 923-932. 10.1016/j.watres.2015.11.006

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, Ben; Nkhuwa, Daniel; Pedley, Steve. 2015 Real-time inference of thermotolerant coliforms in groundwater. [Poster] In: 42nd IAH Congress, Rome, Italy, 14-18 Sept 2015. (Unpublished)

Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Sorensen, James; Read, Dan ORCID: https://orcid.org/0000-0001-8546-5154; Pedley, Steve; Nkhuwa, Daniel; Bell, Rachel. 2015 Tracking pathways for pathogen contamination in urban groundwater supplies in Africa: novel application of qPCR techniques. [Lecture] In: 42nd IAH Congress, Rome, Italy, 13-18 Sept 2015. (Unpublished)

Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Sorensen, James; Nkhuwa, Daniel. 2015 Using emerging contaminants to trace rapid recharge pathways in urban groundwater: an example from Kabwe, Zambia. [Lecture] In: 42nd IAH Congress, Rome, Italy, 14-18 Sept 2015. (Unpublished)

Newell, A.J.; Kirby, G.A.; Sorensen, J.P.R.; Milodowski, A.E.. 2015 The Cretaceous Continental Intercalaire in central Algeria: subsurface evidence for a fluvial to aeolian transition and implications for the onset of aridity on the Saharan Platform. Palaeogeography, Palaeoclimatology, Palaeoecology, 438. 146-159. 10.1016/j.palaeo.2015.07.023

Stratford, Charlie ORCID: https://orcid.org/0000-0003-3867-5807; Sorensen, James; Roberts, Colin; House, Andrew; Rameshwaran, Ponnambalam ORCID: https://orcid.org/0000-0002-8972-953X. 2015 Wetland hydrological monitoring: overview and Boxford Water Meadows case study. Wallingford, NERC/Centre for Ecology & Hydrology, 31pp. (CEH Project no. C04470) (Unpublished)

Sorensen, J.P.R.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Marchant, B.P.; Nkhuwa, D.C.W.; Pedley, S.; Stuart, M.E.; Bell, R.A.; Chirwa, M.; Kabika, J.; Liemisa, M.; Chibesa, M.. 2015 In-situ tryptophan-like fluorescence: a real-time indicator of faecal contamination in drinking water supplies. Water Research, 81. 38-46. 10.1016/j.watres.2015.05.035

House, Andrew; Acreman, Mike; Sorensen, James; Thompson, Julian. 2015 Hydroecological impacts of climate change modelled for a lowland UK wetland. [Lecture] In: European Geosciences Union General Assembly 2015, Vienna, 12-17 Apr 2015. (Unpublished)

Khamis, K.; Sorensen, J.P.R.; Bradley, C.; Hannah, D.M.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Stevens, R.. 2015 In situ tryptophan-like fluorometers: assessing turbidity and temperature effects for freshwater applications. Environmental Science: Processes & Impacts, 17. 740-752. 10.1039/c5em00030k

House, Andrew R.; Sorensen, James P.R.; Gooddy, Daren C.; Newell, Andrew J.; Marchant, Ben; Mountford, J. Owen; Scarlett, Peter; Williams, Peter J.; Old, Gareth H. ORCID: https://orcid.org/0000-0002-4713-1070. 2015 Discrete wetland groundwater discharges revealed with a three-dimensional temperature model and botanical indicators (Boxford, UK). Hydrogeology Journal, 23 (4). 775-787. 10.1007/s10040-015-1242-5

Stuart, Marianne; White, Debbie; Manamsa, Katya; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Williams, Peter; Sorensen, James. 2015 Emerging organic contaminants in groundwater in urban areas. [Lecture] In: Emerging contaminants in water and soil: practical considerations, sampling analysis and consequences, Sheffield, UK, 4 Mar 2015. British Geological Survey. (Unpublished)

Sorensen, J.P.R.; Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Nkhuwa, D.C.W.; Stuart, M.E.; Gooddy, D.C.; Bell, R.A.; Chirwa, M.; Kabika, J.; Liemisa, M.; Chibesa, M.; Pedley, S.. 2015 Emerging contaminants in urban groundwater sources in Africa. Water Research, 72. 51-63. 10.1016/j.watres.2014.08.002

House, Andrew; Acreman, Mike; Sorensen, James; Thompson, Julian. 2015 Hydroecological impacts of climate change modelled for a lowland UK wetland. Geophysical Research Abstracts, 17, EGU2015-4671. 1, pp.

Sorensen, J.P.R.; Butcher, A.S.; Stuart, M.E.; Townsend, B.R.. 2015 Nitrate fluctuations at the water table: implications for recharge processes and solute transport in the Chalk aquifer. Hydrological Processes, 29 (15). 3355-3367. 10.1002/hyp.10447

Loke, M.H.; Wilkinson, P.B.; Chambers, J.E.; Uhlemann, S.S.; Sorensen, J.P.R.. 2015 Optimized arrays for 2-D resistivity survey lines with a large number of electrodes. Journal of Applied Geophysics, 112. 136-146. 10.1016/j.jappgeo.2014.11.011

2014

Sorensen, James. 2014 Groundwater dependence and threats in urban Sub-Saharan Africa. [Lecture] In: Groundwater, poverty and development, London, UK, 28 Nov 2014. (Unpublished)

Roberts, C.; Old, G. ORCID: https://orcid.org/0000-0002-4713-1070; Mountford, O.; Sorensen, J.P.R.; Williams, P.J.. 2014 Mapping topography and broad vegetation type to characterise the Boxford meadows SSSI (Unit 2). Wallingford, UK, NERC/Centre for Ecology & Hydrology, 10pp. (CEH Project no. C04470) (Unpublished)

Old, G.H. ORCID: https://orcid.org/0000-0002-4713-1070; Naden, P.S.; Rameshwaran, P. ORCID: https://orcid.org/0000-0002-8972-953X; Acreman, M.C.; Baker, S.; Edwards, F.K.; Sorensen, J.P.R.; Mountford, O.; Gooddy, D.C.; Stratford, C.J. ORCID: https://orcid.org/0000-0003-3867-5807; Scarlett, P.M.; Newman, J.R.; Neal, M.. 2014 Instream and riparian implications of weed cutting in a chalk river. Ecological Engineering, 71. 290-300. 10.1016/j.ecoleng.2014.07.006

Sorensen, James; Pedley, Steve; Read, Daniel ORCID: https://orcid.org/0000-0001-8546-5154; Chibesa, Mirriam; Chirwa, Meki; Bell, Rachel; Nkhuwa, Daniel; Liemisa, Moses; Stuart, Marianne; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960. 2014 Characterising pathogen contamination in urban groundwater in Kabwe, Zambia: a comparative study using multiple pollution indicators and contributing risk factors. [Poster] In: 41st IAH International Congress "Groundwater: Challenges and Strategies", Marrakech, Morocco, 15-19 Sept 2014.

Sorensen, James; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Nkhuwa, Daniel; Stuart, Marianne; Bell, Rachel; Chirwa, Meki; Kabika, Joel. 2014 Emerging organic contaminants in urban and peri‐urban groundwater sources in Sub‐Saharan Africa. [Poster] In: 41st IAH International Congress "Groundwater: Challenges and Strategies", Marrakech, Morocco, 15-19 Sept 2014.

Butcher, Andrew; Sorensen, James. 2014 Extreme groundwater levels in boreholes: measurement of changes in flow regimes and their significance for groundwater flooding. [Lecture] In: 41st IAH International Congress "Groundwater: Challenges and Strategies", Marrakech, Morocco, 15-19 Sept 2014. (Unpublished)

Khamis, Kieran; Sorensen, James; Bradley, Chris; Hannah, David; Stevens, Rob. 2014 Monitoring dissolved organic matter using submersible tryptophan-like fluorometers. [Lecture] In: 12th British Hydrological Society National Symposium, Birmingham, UK, 2-4 Sept 2014. (Unpublished)

House, Andrew; Sorensen, James; Newell, Andrew; Chambers, Jonathan; Wilkinson, Paul; Uhlemann, Sebastian; Gooddy, Daren; Mountford, Owen; Scarlett, Peter; Old, Gareth ORCID: https://orcid.org/0000-0002-4713-1070. 2014 Using temperature, electrical resistivity tomography and botanical indicators to understand groundwater discharge in a riparian wetland. [Lecture] In: British Hydrological Society: Early career hydrologists’ event 2014, Cardiff, UK, 24-25 June 2014. (Unpublished)

Lapworth, D.J. ORCID: https://orcid.org/0000-0001-7838-7960; Sorensen, J.; Pedley, S.; Nkhuwa, D.C.W.; Read, D. ORCID: https://orcid.org/0000-0001-8546-5154; Chibesa, M.; Chirwa, M.; Bell, R.; Liemisa, M.; Stuart, M.; Kabika, J.. 2014 Applying in-situ fluorescence and molecular screening techniques to understand contamination and contributing risk factors in shallow urban groundwaters in sub-Saharan Africa. [Poster] In: Hydrogeology and WASH, London, UK, 5 June 2014. British Geological Survey.

House, Andrew; Sorensen, James; Gooddy, Daren; Newell, Andrew; Marchant, Benjamin; Mountford, Owen; Scarlett, Peter; Williams, Peter; Old, Gareth ORCID: https://orcid.org/0000-0002-4713-1070. 2014 Using a 3D temperature model to reveal the significance of relic channels and botanical indicators of groundwater discharge. [Lecture] In: Integrated Management of Groundwater Resources and Dependent Ecosystems, Prague, Czech Republic, 5-7 March 2014. (Unpublished)

Sorensen, J.P.R.; Finch, J.W.; Ireson, A.M.; Jackson, C.R.. 2014 Comparison of varied complexity models simulating recharge at the field scale. Hydrological Processes, 28 (4). 2091-2102. 10.1002/hyp.9752

Chambers, J.E.; Wilkinson, P.B.; Uhlemann, S.; Sorensen, J.P.R.; Roberts, C.; Newell, A.J.; Ward, W.O.C.; Binley, A.; Williams, P. J.; Gooddy, D.C.; Old, G. ORCID: https://orcid.org/0000-0002-4713-1070; Bai, L.. 2014 Derivation of lowland riparian wetland deposit architecture using geophysical image analysis and interface detection. Water Resources Research, 50 (7). 5886-5905. 10.1002/2014WR015643

Uhlemann, S.S.; Sorensen, J.P.R.; Chambers, J.E.; Wilkinson, P.B.; Oxby, L.; Gooddy, D.C.; Old, G.H. ORCID: https://orcid.org/0000-0002-4713-1070; Kuras, O.; Meldrum, P.I.. 2014 Imaging of hydrological processes in a lowland wetland of the Lambourn river, Berkshire, UK (abstract only). [Other] In: 2nd International Workshop on Geoelectrical Monitoring, Tokyo, Japan, 28-30 May 2014. Geological Survey of Austria. (Unpublished)

2013

Sorensen, James; Maurice, Lou; Edwards, Francois; Lapworth, Dan ORCID: https://orcid.org/0000-0001-7838-7960; Read, Daniel ORCID: https://orcid.org/0000-0001-8546-5154; Allen, Debbie; Butcher, Andrew; Newbold, Lindsay ORCID: https://orcid.org/0000-0001-8895-1406; Townsend, Barry; Williams, Peter. 2013 The challenges of investigating groundwater ecosystems using boreholes. [Poster] In: What's new in hydrogeology, Leeds, UK, 6 November 2013. (Unpublished)

House, Andrew; Sorensen, James; Gooddy, Daren; Marchant, Benjamin; Newell, Andrew; Old, Gareth ORCID: https://orcid.org/0000-0002-4713-1070; Roberts, Colin; Scarlett, Peter. 2013 Revealing groundwater discharge to a lowland wetland by combining temperature and vegetation surveys. [Lecture] In: Wetland Hydrology: BHS National Meeting, Birmingham, UK, 13 Sept 2013. (Unpublished)

Sorensen, James P.R.; Maurice, Louise; Edwards, Francois K.; Lapworth, Daniel J. ORCID: https://orcid.org/0000-0001-7838-7960; Read, Daniel S. ORCID: https://orcid.org/0000-0001-8546-5154; Allen, Debbie; Butcher, Andrew S.; Newbold, Lindsay K. ORCID: https://orcid.org/0000-0001-8895-1406; Townsend, Barry R.; Williams, Peter J.. 2013 Using boreholes as windows into groundwater ecosytems. PLoS ONE, 8 (7), e70264. 10.1371/journal.pone.0070264

Davies, Jeff; Robins, Nick S.; Farr, John; Sorensen, James; Beetlestone, Philip; Cobbing, Jude E.. 2013 Identifying transboundary aquifers in need of international resource management in the Southern African Development Community region. Hydrogeology Journal, 21 (2). 321-330. 10.1007/s10040-012-0903-x

2012

Sorensen, James; Finch, Jon; Ireson, Andrew; Jackson, Christopher. 2012 Assessing the effects of land surface representation on recharge simulated by models of varying complexity. [Lecture] In: 39th IAH Congress, Niagara, Canada, 16-21 Sept 2012. (Unpublished)

Maurice, Louise; Sorensen, James; Newbold, Lindsay ORCID: https://orcid.org/0000-0001-8895-1406; Read, Daniel ORCID: https://orcid.org/0000-0001-8546-5154; Allen, Debbie; Edwards, Francois; Bloomfield, John ORCID: https://orcid.org/0000-0002-5730-1723. 2012 Hydrogeological borehole investigations of groundwater ecology in the English Chalk. [Lecture] In: 21st International Conference on Subterranean Biology, Kosice, Slovakia, 2-7 Sep 2012. (Unpublished)

Sorensen, James; Darling, George; Newell, Andrew. 2012 Monitoring Saharan groundwater resources overlying a terrestial CCS site. [Poster] In: Ineson Meeting: Groundwater and Energy, London, 17th October 2012. (Unpublished)

Sorensen, James. 2012 Water level loggers : a need for industry standards. [Lecture] In: Water Level Measurement using Data Loggers, Birmingham, UK, 28 March 2012. (Unpublished)

2011

Sorensen, J.P.R.; Butcher, A.S.; Stuart, M.E.; Townsend, B.R.. 2011 Hydrogeological investigations at Morestead, Twyford, 2010-2011. British Geological Survey, 36pp. (OR/11/043) (Unpublished)

Sorensen, James P.R.; Butcher, Andrew S.. 2011 Water level monitoring pressure transducers : a need for industry-wide standards. Ground Water Monitoring & Remediation, 31 (4). 56-62. 10.1111/j.1745-6592.2011.01346.x

2010

Sorensen, J.P.R.; Allen, D.J.. 2010 Groundwater– surface water interaction investigations at the Boxford Research site in 2009/10. Nottingham, UK, British Geological Survey, 26pp. (OR/10/009) (Unpublished)

Sorensen, J.P.R.; Butcher, A.S.; Stuart, M.E.. 2010 Hydrogeological investigations at Morestead, Twyford, 2008-2009. Nottingham, UK, British Geological Survey, 39pp. (OR/10/011) (Unpublished)

Sorensen, J.P.R.. 2010 Hydrogeological investigations at Morestead, Twyford, 2009-2010. Nottingham, UK, British Geological Survey, 41pp. (OR/10/038) (Unpublished)

Sorensen, J.P.R.; Butcher, A.S.. 2010 Technical performance of selected pressure transducers used for groundwater monitoring under laboratory and field conditions. British Geological Survey, 67pp. (OR/10/060) (Unpublished)

2009

Sorensen, J.P.R.; Butcher, A.S.; Gallagher, A.J.; Stuart, M.E.. 2009 Hydrogeological investigations at Morestead, Twyford, 2008-2009 (preliminary observations). Nottingham, UK, British Geological Survey, 25pp. (OR/09/009) (Unpublished)