Dr Nick Chappell FRGS

Senior Lecturer

Research Overview

Research

Nick’s research focuses on rainfall-runoff processes within upland UK & equatorial tropics.

Runoff pathways are regulated by meteorological & watershed effects & are impacted by land-use changes, such as those resulting from forestry. These pathways then regulate flood responses, erosion, sediment delivery & a range of water quality characteristics.

Current rates of development within the humid tropics are giving profound changes to water pathways & water resources (Wohl et al., 2012 Nature Climate Change), & research utilising new sensor (Pereira et al., 2014 Geophysical Research Letters) & modelling technologies (Jones and Chappell, 2014 Hydrology Research) is needed.

Ongoing research projects where Nick is the Principal Investigator at Lancaster include:

Additionally, Nick has a long-term research commitment to the discipline of tropical forest hydrology at experimental basins in Malaysian Borneo with partner the Yayasan Sabah Group. For further details of Nick’s research publications and projects click these links and use the tabs above.

Research-led teaching and training

Nick teaches the core year 1 and year 2 hydrology courses and a third year field-course based at the Slapton Ley Field Studies Centre (click links to see course pages):

These courses are available to the BSc Environmental Science programme, BSc Geography programme, and other programmes in LEC. Nick also teaches undergraduate, masters and PhD research projects in field hydrology and hydrological modelling and is the Director of the MSc Sustainable Water Management and PgCert Flood and Coastal Risk Management programmes:

Nick is the author of the first eight chapters (focusing on hydrometry) of the latest edition of the hydrology reference text: Shaw EM, Beven KJ, Chappell NA & Lamb R 2011 Hydrology in Practice, Fourth Edition, Taylor & Francis

News

Research and teaching items that have appeared in news articles:

For further information, see Nick’s personal webpages

Reversing hydrology: quantifying the temporal aggregation effect of catchment rainfall estimation using sub-hourly data
Kretzschmar, A., Tych, W., Chappell, N., Beven, K. 30/09/2015 In: Hydrology Research.
Journal article

Quantification of the effect of forest harvesting versus climate on streamflow cycles and trends in an evergreen broadleaf catchment.
Kabeya, N., Chappell, N.A., Tych, W., Shimizu, A., Asano, S., Hagino, H. 2015 In: Hydrological Sciences Journal.
Journal article

First dynamic model of dissolved organic carbon derived directly from high frequency observations through contiguous storms
Jones, T.D., Chappell, N.A., Tych, W. 21/10/2014 In: Environmental Science and Technology. 48, 22, p. 13289-13297. 9 p.
Journal article

Reversing hydrology: estimation of sub-hourly rainfall time-series from streamflow
Kretzschmar, A., Tych, W., Chappell, N.A. 10/2014 In: Environmental Modelling and Software. 60, p. 290-301. 12 p.
Journal article

Atmospheric deposition versus rock weathering in the control of streamwater chemistry in a tropical rain-forest catchment in Malaysian Borneo
Yamashita, N., Sase, H., Kobayashi, R., Peng, L.K., Hanapi, J.M., Uchiyama, S., Urban, S., Ying-Ying, T., Muhamad, M., Gidiman, J., Chappell, N.A. 09/2014 In: Journal of Tropical Ecology. 30, 5, p. 481-492. 12 p.
Journal article

Quantifying the differential contributions of deep groundwater to streamflow in nested basins, using both water quality characteristics and water balance
Ockenden, M., Chappell, N., Neal, C. 25/04/2014 In: Hydrology Research. 45, 2, p. 200-212. 13 p.
Journal article

Streamflow and hydrogen ion interrelationships identified using data-based mechanistic modelling of high frequency observations through contiguous storms.
Jones, T., Chappell, N.A. 7/04/2014 In: Hydrology Research. 45, 6, p. 868-892. 25 p.
Journal article

Mobilization of optically invisible dissolved organic matter (iDOM) in response to rainstorm events in a tropical forest headwater river.
Pereira, R., Bovolo, C.I., Spencer, R.G.M., Hernes, P.J., Tipping, E., Vieth-Hillebrand, A., Pedentchouk, N., Chappell, N.A., Parkin, G., Wagner, T. 28/02/2014 In: Geophysical Research Letters. 41, 4, p. 1202–1208. 7 p.
Journal article

Data-Based Mechanistic modelling of rainfall to riverflow of large nested tropical rainforest catchments in Ghana.
Ampadu, B., Chappell, N., Tych, W. 06/2013 In: Canadian Journal of Pure and Applied Sciences. 7, 2, p. 2405-2424. 20 p.
Journal article

Rainfall-riverflow modelling approaches: making a choice of data-based mechanistic modelling approach for data limited catchments: a review.
Ampadu, B., Chappell, N., Tych, W. 2013 In: Canadian Journal of Pure and Applied Sciences. 7, 3, p. 2571-2580.
Journal article

Identifying step changes in single streamflow and evaporation records due to forest cover change.
Chappell, N.A., Tych, W. 01/2012 In: Hydrological Processes. 26, 1, p. 100-116. 17 p.
Journal article

Hydrology within Tropical Natural Forests: Implications for Large-Scale Ecosystem Modeling
Chappell, N. 2012 In: Research Priorities for Tropical Ecosystems Under Climate Change Workshop Report, DOE/SC-0153. Washington DC : U.S. Department of Energy Office of Science p. 77-84. 8 p.
Paper

The hydrology of the humid tropics
Wohl, E., Barros, A., Brunsell, N., Chappell, N., Coe, M., Giambelluca, T., Goldsmith, S., Harmon, R., Hendrickx, J., Juvik, J., McDonnell, J.J., Ogden, F. 2012 In: Nature Climate Change. 2, 9, p. 655-662. 8 p.
Journal article

Tropical cyclone effects on rapid runoff responses: quantifying with new continuous-time transfer function models
Chappell, N.A., Bonell, M., Barnes, C., Tych, W. 2012 In: Revisiting Experimental Catchment Studies in Forest Hydrology. Wallingford : IAHS Press p. 82-93. 12 p.
Chapter (peer-reviewed)

Identification of the dominant runoff pathways from the data-based mechanistic modelling of nested catchments in temperate UK.
Ockenden, M.C., Chappell, N.A. 13/05/2011 In: Journal of Hydrology. 402, 1-2, p. 71-79. 9 p.
Journal article

Longer-term responses of rainforest erosional systems at different spatial scales to selective logging and climatic change
Walsh, R.P.D., Bidin, K., Blake, W.H., Chappell, N.A., Clarke, M.A., Douglas, I., Ghazali, R., Sayer, A.M., Suhaimi, J., Tych, W., Annammala, K.V. 2011 In: Philosophical transactions of the Royal Society of London. Series B, Biological sciences. 366, n/a, p. 3340-3353. 14 p.
Journal article

River sediment monitoring for baseline and change characterisation: a new management tool for the Ramu River Communities in Papua New Guinea
Chappell, N.A., Tych, W., Shearman, P., Lokes, B., Chitoa, J. 2011 In: Sediment Problems and Sediment Management in Asian River Basins. Wallingford : IAHS Press p. 92-102. 11 p.
Chapter (peer-reviewed)

The EANET challenges on catchment-scale monitoring in Asian forests
Sase, H., Yamashita, N., Luangjame, J., Garivait, H., Visaratana, T., Kietvuttinon, B., Hongthong, B., Urban, S., Leong, C.P., Toh, Y., Majid, N., Sanusi, A., Ahmed, O., Gandaseca, S., Chappell, N., Ohta, S., Shindo, J., Hayashi, K., Matsuda, K. 2011 In: Proceedings of the International Symposium on Rehabilitation of Tropical Rainforest Ecosystems 2011. Kuala Lumpur : Universiti Putra Malaysia p. 131-136. 6 p.
Paper

The impact of forest use and reforestation on soil hydraulic conductivity in the Western Ghats of India: implications for surface and sub-surface hydrology
Bonell, M., Purandara, B.K., Venkatesh, B., Krishnaswamy, J., Acharya, H.A.K., Jayakumar, R., Singh, U.V., Chappell, N. 14/09/2010 In: Journal of Hydrology. 391, 1-2, p. 47-62. 16 p.
Journal article

Hydrology in practice
Shaw, E.M., Beven, K.J., Chappell, N.A., Lamb, R. 07/2010 4th ed. London : Spon Press (Taylor and Francis). 643 p. ISBN: 9780415370424.
Book

Soil pipe distribution and hydrological functioning within the humid tropics : a synthesis.
Chappell, N.A. 15/06/2010 In: Hydrological Processes. 24, 12, p. 1567-1581. 15 p.
Journal article

Erosion on tropical rain-forest terrain: a re-evaluation in the light of long-term monitoring, aerial photographic evidence and sediment fingerprinting in Borneo
Walsh, R., Bidin, K., Blake, W., Clarke, M., Sayer, A., Ghazali, R., Annammala, K., Chappell, N., Douglas, I. 2010 In: Geophysical Research Abstracts. 12, EGU2010, 1 p.
Journal article

Overview: oxidant and particle photochemical processes above a south-east Asian tropical rainforest (the OP3 project): introduction, rationale, location characteristics and tools
Hewitt, C.N., Lee, J.D., Mackenzie, R., Barkley, M.P., Carslaw, N., Carver, G.D., Chappell, N., Coe, H., Collier, C., Commane, R., Davies, F., Davison, B., Di Carlo, P., Di Marco, C.F., Dorsey, J.R., Edwards, P.M., Evans, M.J., Fowler, D., Furneaux, K.L., Gallagher, M., Guenther, A., Heard, D.E., Helfter, C., Hopkins, J., Ingham, T., Irwin, M., Jones, C., Karunaharan, A., Langford, B., Lewis, A.C., Lim, S.F., MacDonald, S.M., Mahajan, A.S., Malpass, S., McFiggans, G., Mills, G., Misztal, P., Moller, S., Monks, P.S., Nemitz, E., Nicolas-Perea, V., Oetjen, H., Oram, D.E., Palmer, P.I., Phillips, G.J., Pike, R., Plane, J.M.C., Pugh, T., Pyle, J.A., Reeves, C.E., Robinson, N.H., Stewart, D., Stone, D., Whalley, L.K., Yin, X. 2010
Scientific review

Overview: oxidant and particle photochemical processes above a south-east Asian tropical rainforest (the OP3 project): introduction, rationale, location characteristics and tools (vol 10, pg 169, 2010)
Hewitt, C.N., Lee, J.D., Mackenzie, R., Barkley, M.P., Carslaw, N., Carver, G.D., Chappell, N., Coe, H., Collier, C., Commane, R., Davies, F., Davison, B., Di Carlo, P., Di Marco, C.F., Dorsey, J.R., Edwards, P.M., Evans, M.J., Fowler, D., Furneaux, K.L., Gallagher, M., Guenther, A., Heard, D.E., Helfter, C., Hopkins, J., Ingham, T., Irwin, M., Jones, C., Karunaharan, A., Langford, B., Lewis, A.C., Lim, S.F., MacDonald, S.M., Mahajan, A.S., Malpass, S., McFiggans, G., Mills, G., Misztal, P., Moller, S., Monks, P.S., Nemitz, E., Nicolas-Perea, V., Oetjen, H., Oram, D.E., Palmer, P.I., Phillips, G.J., Pike, R., Plane, J.M.C., Pugh, T., Pyle, J.A., Reeves, C.E., Robinson, N.H., Stewart, D., Stone, D., Whalley, L.K., Yang, X. 2010 In: Atmospheric Chemistry and Physics . 10, 2, p. 563-563. 1 p.
Journal article

The EANET challenge on the catchment-scale analysis for the future integrated monitoring.
Sase, H., Luangjame, J., Garivait, H., Urban, S., Yamashita, N., Nakahara, O., Kietvuttinon, B., Visaratana, T., Kobayashi, R., Takahashi, M., Hakamata, T., Chappell, N.A., Leong, C.P., Ohta, S., Shindo, J., Hayashi, K., Matsuda, K. 2010 In: International Forestry Review. 12, 5, p. 234-235. 2 p.
Journal article

Forest–flood relation still tenuous – comment on 'Global evidence that deforestation amplifies flood risk and severity in the developing world' by C. J. A. Bradshaw, N.S. Sodi, K. S.-H. Peh and B.W. Brook.
Van Dijk, A.I.J.M., van Noordwijk, M., Calder, I.R., Bruijnzeel, S.L.A., Schellekens, J., Chappell, N.A. 01/2009 In: Global Change Biology. 15, 1, p. 110-115. 6 p.
Journal article

Climate regulation of Southeast Asian hydrology.
Chen, Y.D., Chappell, N.A. 2009 In: Critical states: Environmental challenges to development in monsoon Southeast Asia. Kuala Lumpur : Gerakbudaya p. 205-220. 16 p. ISBN: 978-983-3782-62-8.
Chapter

Practical hydrological protection of tropical forests : Malaysia's scientific contribution.
Chappell, N.A., Thang, H.C., Sinun, W., Bidin, K. 2009 In: Proceedings of the International Conference on Nature Conservation in Sabah: the Quest for the Gold Standard, 26-27 November 2007, Kota Kinabalu. Sabah Forestry Department, Sandakan p. 132-144. 13 p. ISBN: 978-983-42418-4-1.
Chapter

Simulating hourly rainfall occurrence within an equatorial rainforest, Borneo Island
Chappell, N.A., Discenza, A.R., Tych, W., Whittaker, J., Bidin, K. 2009 In: Hydrological Sciences Journal. 54, 3, p. 571-581. 11 p.
Journal article

Validation and interpretation of spatial soil-water modelling in the tropical subcatchments of Mae Cheam basin.
Vongtanaboon, S., Chappell, N.A. 2009 In: Hydrology in mountain regions: observations, processes and dynamics, IAHS Publication 326. IAHS Press p. 174-180. 7 p.
Chapter

Biomass variation across selectively logged forest within a 225 km2 region of Borneo and its prediction by Landsat TM
Tangki, H., Chappell, N.A. 20/11/2008 In: Forest Ecology and Management. 256, 11, p. 1960-1970. 11 p.
Journal article

Influence of individual oak (Quercus robur) trees on saturated hydraulic conductivity
Chandler, K., Chappell, N.A. 20/08/2008 In: Forest Ecology and Management. 256, 5, p. 1222-1229. 8 p.
Journal article

Climate regulation of humid tropical hydrology.
Chappell, N.A., Chen, Y.D., Suhaimi, J., Bonell, M. 2008 In: Sustainable Hydrology for the 21st Century. Proc. 10th BHS National Hydrology Symposium, Exeter. British Hydrological Society p. 172-177. 6 p. ISBN: 1903741165.
Chapter

Malaysian forestry guidelines for mitigating water quality impacts in rainforests: implications from 20 years of local hydrological science.
Chappell, N.A., Bidin, K., Chiew, T.H., Douglas, I., Sinun, W., Walsh, R.P.D., Abu Bakar, S.N., Hanapi, J. 2008 In: Sustainable Hydrology for the 21st Century. Proc. 10th BHS National Hydrology Symposium, Exeter. British Hydrological Society p. 431-436. 6 p. ISBN: 1903741165.
Chapter

The effect of topography, subsurface strata and land-use on observed distributions of soil moisture within a sub-catchment of the River Eden, Cumbria.
Chappell, N.A., Ockenden, M. 2008 In: Sustainable Hydrology for the 21st Century. Proc. 10th BHS National Hydrology Symposium, Exeter. British Hydrological Society p. 202-207. 6 p. ISBN: 1903741165.
Chapter

Development of the forSIM model to quantify positive and negative hydrological impacts of tropical reforestation.
Chappell, N.A., Tych, W., Bonell, M. 30/10/2007 In: Forest Ecology and Management. 251, 1-2, p. 52-64. 13 p.
Journal article

Comparison of methodological uncertainty within permeability measurements.
Chappell, N.A., Lancaster, J.W. 30/08/2007 In: Hydrological Processes. 21, 18, p. 2504-2514. 11 p.
Journal article

Forest Environments in the Mekong River Basin.
Sawada, H., Araki, M., Chappell, N.A., LaFrankie, J.V., Shimizu, A., Sawada, H., Araki, M., Chappell, N.A., LaFrankie, J.V., Shimizu, A. 2007 Tokyo : Springer Verlag. 299 p. ISBN: 978 4 431 46500 3.
Book

Identification of diurnal, seasonal and inter-annual variability across SE Asian field observations of key water cycle variables : rainfall, net radiation, total evaporation and river discharge.
Solera-Garcia, M.A., Chappell, N., Tych, W. 2007
Abstract

Practical hydrological protection for tropical natural forests: the Malaysian experience.
Chappell, N.A., Thang, H.C. 2007 In: Unasylva. 229, 58, p. 17-21. 5 p.
Journal article

Runoff processes in Southeast Asia: role of soil, regolith and rock type.
Chappell, N.A., Sherlock, M., Bidin, K., Macdonald, R., Najman, Y., Davies, G. 2007 In: Forest Environments in the Mekong River Basin. Tokyo : Springer Verlag p. 3-23. 21 p. ISBN: 978 4 431 46500 3.
Chapter

Characteristics of rain events at an inland locality in northeastern Borneo, Malaysia.
Chappell, N.A., Bidin, K. 30/11/2006 In: Hydrological Processes. 20, 18, p. 3835-3850. 16 p.
Journal article

Identification of the distribution of hydro-climatic cycles of field observations in Southeast Asia.
Solera Garcia, M.A., Chappell, N., Tych, W. 11/2006 In: Climate variability and change. Wallingford : IAHS Publications p. 356-361. 6 p. ISBN: 9781901502787.
Chapter

Discussion note: "Forests and flood: moving to an evidence-based approach to watershed and integrated flood management" by Ian R. Calder and Bruce Aylward
Chappell, N.A. 09/2006 In: Water International. 31, 3
Journal article

BARUMODEL: Combined Data Based Mechanistic models of runoff response in a managed rainforest catchment. Forest Ecology and Management.
Chappell, N.A., Bidin, K., Chotai, A., Tych, W. 15/03/2006 In: Forest Ecology and Management. 224, 1-2, p. 58-80. 23 p.
Journal article

Return-flow prediction and buffer designation in two rainforest headwaters.
Chappell, N.A., Jiang, Y., Tangtham, N., Vongtanaboon, S. 15/03/2006 In: Forest Ecology and Management. 224, 1-2, p. 131-146. 16 p.
Journal article

Changes in the spatial distribution of erosion within a selectively logged rain-forest catchment in Borneo, 1988-2002.
Walsh, R.P.D., Clarke, M., Bidin, K., Blake, W.H., Chappell, N.A., Douglas, I., Ramli, N., Sayer, A.M., Sinun, W., Larenus, J., Hanapi, J. 2006 In: Soil erosion and sediment redistribution in river catchments : measurement, modelling and management. Wallingford : CABI p. 239-253. 15 p. ISBN: 9780851990507.
Chapter

Identification of the distribution of hydroclimatic cycles of field observations in Southeast Asia.
Solera-Garcia, M., Chappell, N.A., Tych, W. 2006 In: Climate variability and change : hydrological impacts. Wallingford : International Association of Hydrological Sciences p. 356-361. 6 p. ISBN: 9781901502787.
Chapter

Contrasting flow pathways within tropical forest slopes of Ultisol soil. Earth Surface Processes and Landforms.
Chappell, N.A., Sherlock, M.D. 1/06/2005 In: Earth Surface Processes and Landforms. 30, 6, p. 735-753. 19 p.
Journal article

Modelling tropical forest watersheds: setting realistic goals.
Chappell, N.A. 2005 In: ETFRN News. 45, p. 25-28. 4 p.
Journal article

Uncertainties in the hydrology of tropical reforestation: beyond ‘from the mountain to the tap’.
Chappell, N.A., Bonell, M. 2005 In: ETFRN News. 45, p. 8-11. 4 p.
Journal article

Water pathways in humid forests: myths vs. observations.
Chappell, N.A. 2005 In: Suiri Kagaku. 48, 6, p. 32-46. 15 p.
Journal article

Source of suspended-sediment within a tropical catchment recovering from selective logging.
Chappell, N.A., Douglas, I., Hanapi, J.M., Tych, W. 03/2004 In: Hydrological Processes. 18, 4, p. 685-701. 17 p.
Journal article

DBM rainfall-runoff modelling of large rainforest catchments in Thailand.
Vongtanaboon, S., Chappell, N.A. 2004 In: Forests and water in warm, humid Asia (Proceedings of a IUFRO Forest Hydrology Workshop, 10-12 July 2004, Kota Kinabalu, Malaysia, Disaster Prevention Research Institute). Uiji, Japan : Disaster Prevention Research Institute p. 252-255. 4 p. ISBN: 499021420X.
Chapter

Effect of natural climatic cycles on rainfall-stream runoff (P-Q) of a 44 ha catchment recovering from selective tropical forestry.
Bidin, K., Chappell, N.A., Tych, W., Greer, T. 2004 In: Forests and water in warm, humid Asia (Proceedings of a IUFRO Forest Hydrology Workshop, 10-12 July 2004, Kota Kinabalu, Malaysia, Disaster Prevention Research Institute). Uiji, Japan : Disaster Prevention Research Institute p. 204-207. 4 p. ISBN: 499021420X.
Chapter

Minimising the hydrological impact of forest harvesting in Malaysia's rain forests.
Thang, H.C., Chappell, N.A. 2004 In: Forests, water, and people in the humid Tropics past, present, and future hydrological research for integrated land and water management. Cambridge : Cambridge University Press p. 852-865. 14 p. ISBN: 0511109725.
Chapter

New approach to modelling water paths in managed rainforests.
Chappell, N.A., Tych, W., Chotai, A., Bidin, K., Sinun, W., Thang, H.C. 2004 In: Forests and water in warm, humid Asia (Proceedings of a IUFRO Forest Hydrology Workshop, 10-12 July 2004, Kota Kinabalu, Malaysia, Disaster Prevention Research Institute). Uiji, Japan : Disaster Prevention Research Institute p. 256-259. 4 p. ISBN: 499021420X.
Chapter

Parsimonious spatial representation of tropical soils within dynamic, rainfall-runoff models
Chappell, N.A., Bidin, K. 2004 In: Forests, water and people in the humid Tropics : past, present, and future hydrological research for intergrated land and water management. Cambridge : Cambridge University Press p. 756-769. 14 p. ISBN: 0521829534.
Chapter

Spatially-significant effects of selective tropical forestry on water, nutrient and sediment flows: a modelling-supported review
Chappell, N.A., Tych, W. 2004 In: Forests, water and people in the humid Tropics : past, present, and future hydrological research for intergrated land and water management. Cambridge : Cambridge University Press p. 513-532. 20 p. ISBN: 0521829534.
Chapter

Statistical modelling of rainfall and river flow in Thailand.
Boochabun, K., Tych, W., Chappell, N.A., Carling, P.A., Lorsirirat, K., Pa-Obsaeng, S. 2004 In: Journal of the Geological Society of India. 64, p. 503-515. 13 p.
Journal article

Sub-canopy rainfall and wet-canopy evaporation in a selectively-logged rainforest, Sabah, Malaysia.
Bidin, K., Chappell, N.A. 2004 In: Water: forestry and landuse perspectives: IHP-VI technical document in hydrology No. 70. Paris : UNESCO p. 69-85. 17 p.
Chapter

New modelling techniques in the analysis of tropical climate data.
Tych, W., Chappell, N.A. 24/03/2003
Conference paper

A spatio-temporal methodology for evaluating GCM simulations of tropical water fluxes.
Fowell, M., Chappell, N.A. 2003 In: UGAMP Newsletter. 27, p. 9-11. 3 p.
Journal article

Evaluation of GCM simulation of humid tropical hydrology.
Chappell, N.A., Fowell, M. 2003 In: UGAMP Newsletter. 27, p. 8-9. 2 p.
Journal article

First evidence of a structured and dynamic spatial pattern of rainfall within a small humid tropical catchment.
Bidin, K., Chappell, N.A. 2003 In: Hydrology and Earth System Sciences. 7, 2, p. 245-253. 9 p.
Journal article

Identification of land-use change impacts on tropical hydrological processes.
Chappell, N.A., Tych, W. 2003
Conference paper

Statistical modelling for rainfall and river flow in Thailand.
Buchaboon, K., Tych, W., Chappell, N.A., Carling, P. 12/2002
Conference paper

Climate cycle and land-use change sensitivity of tropical hydrological systems : a precursor to GCM land-use change simulations.
Chappell, N.A., Tych, W. 2002 In: UGAMP Newsletter. 25, p. 11-11. 1 p.
Journal article

Modelling rainfall and canopy controls on net-precipitation beneath selectively-logged tropical forest.
Chappell, N.A., Bidin, K., Tych, W. 04/2001 In: Plant Ecology. 153, 1-2, p. 215-229. 15 p.
Journal article

Danum Valley hydrology programme.
Chappell, N.A., Bidin, K. 2001 In: ETFRN News. 33, p. 5-6. 2 p.
Journal article

Intra-catchment dynamics of water and sediment.
Chappell, N.A., Tych, W., Douglas, I. 2001 In: Transactions of the Japanese Geomorphological Union. 22, 4, p. C38.
Journal article

Modelling rainfall and canopy controls on net-precipitation beneath selectively-logged tropical forest.
Chappell, N.A., Bidin, K., Tych, W. 2001 In: Tropical forest canopies : ecology and management. Dordrecht : Kluwer Academic Publishers ISBN: 079237049X.
Chapter

Effects of experimental uncertainty on the calculation of hillslope flow paths.
Sherlock, M.D., Mcdonnell, J.J., Chappell, N.A. 15/10/2000 In: Hydrological Processes. 14, 14, p. 2457-2471. 15 p.
Journal article

Parsimonious modelling of water and suspended-sediment flux from nested-catchments affected by selective tropical forestry.
Chappell, N.A., McKenna, P., Bidin, K., Douglas, I., Walsh, R.P.D. 29/11/1999 In: Philosophical Transactions B: Biological Sciences. 354, 1391, p. 1831-1846. 16 p.
Journal article

The role of extreme events in the impacts of selective tropical forestry on erosion during harvesting and recovery phases at Danum Valley, Sabah.
Douglas, I., Bidin, K., Balamurugam, G., Chappell, N.A., Walsh, R.P.D., Greer, T., Sinun, W. 29/11/1999 In: Philosophical Transactions B: Biological Sciences. 354, 1391, p. 1749-1761. 13 p.
Journal article

Correlation of physicochemical properties and sub-erosional landforms with aggregate stability variations in a tropical Ultisol disturbed by forestry operations.
Chappell, N.A., Ternan, J.L., Bidin, K. 15/02/1999 In: Soil and Tillage Research. 50, 1, p. 55-71. 17 p.
Journal article

Multi-scale permeability estimation in a tropical catchment.
Chappell, N.A., Franks, S.W., Larenus, J. 07/1998 In: Hydrological Processes. 12, 9, p. 1507-1523. 17 p.
Journal article

Ring permeametry: design, operation and error analysis.
Chappell, N.A., Ternan, J.L. 1997 In: Earth Surface Processes and Landforms. 22, 13, p. 1197-1205. 9 p.
Journal article

Flow separation in undisturbed soil using multiple anionic tracers (2) steady state core scale rainfall and return flows.
Henderson, D.E., Reeves, A.D., Beven, K.J., Chappell, N.A. 11/1996 In: Hydrological Processes. 10, 11, p. 1451-1465. 15 p.
Journal article

Localised impact of Sitka spruce (Picea sitchensis (Bong.) Carr.) on soil permeability.
Chappell, N.A., Stobbs, A., Ternan, J.L., Williams, A. 05/1996 In: Plant and Soil. 182, 1, p. 157-169. 13 p.
Journal article

Property distributions and flow structure in the Slapton Wood Catchment.
Chappell, N.A., Franks, S. 1996 In: Field Studies. 8, 4, p. 698-718. 21 p.
Journal article

Nirex Biosphere Research: Report on Current Status in 1994. Nirex Science Report S/95/003.
Thorne, M.C., Bathurst, J.C., Beven, K.J., Burne, S., Butler, A.P., Chappell, N.A., Clayton, K.M., Cliffe, K.A., Ewen, J., Goodess, C.M., Palutikof, J.P., Papaioannou, A., Wheater, H.A. 1995 Harwell : United Kingdom Nirex Ltd.
Book

Tracer and Darcy-based identification of subsurface flow, Bukit Timah forest, Singapore.
Sherlock, M., Chappell, N.A., Greer, T. 1995 In: Singapore Journal of Tropical Geography. 16, 2, p. 197-215. 19 p.
Journal article

Flow Path Dimensionality and Hydrological Modelling
Chappell, N., Ternan, J.L. 1993 In: Terrain Analysis and Distributed Modelling in Hydrology. Chichester : John Wiley and Sons p. 121-139. 19 p.
Chapter (peer-reviewed)

Flow path dimensionality and hydrological modelling.
Chappell, N.A., Ternan, J.L. 1992 In: Hydrological Processes. 6, 3, p. 327-345. 19 p.
Journal article

The impact of rain forest disturbance upon near-surface groundwater flow: modelling of hillslope flow experiments
Chappell, N.A., Binley, A.M. 1992 In: Annales Geophysicae. 10, Supplement II, p. 330-330. 1 p.
Journal article

Preliminary analysis of water and solute movement beneath a coniferous hillslope in mid-Wales, UK.
Chappell, N.A., Ternan, J.L., Williams, A.G., Reynolds, B. 08/1990 In: Journal of Hydrology. 116, 1-4, p. 201-215. 15 p.
Journal article