Search Results - "Howden, N"

Is water quality in British rivers “better than at any time since the end of the Industrial Revolution”? by Whelan, M.J., Linstead, C., Worrall, F., Ormerod, S.J., Durance, I., Johnson, A.C., Johnson, D., Owen, M., Wiik, E., Howden, N.J.K., Burt, T.P., Boxall, A., Brown, C.D., Oliver, D.M., Tickner, D.

“…We explore the oft-repeated claim that river water quality in Great Britain is “better now than at any time since the Industrial Revolution”. We review…”
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North Atlantic Oscillation amplifies orographic precipitation and river flow in upland Britain by Burt, T. P., Howden, N. J. K.

“…Large‐scale climatic variability in the North Atlantic region modulates seasonal rainfall and river flow across the British Isles. We show how the North…”
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Evidence for nitrogen accumulation: the total nitrogen budget of the terrestrial biosphere of a lowland agricultural catchment by Worrall, F, Howden, N. J. K, Burt, T. P

“…Several national-scale studies have shown that reactive N is accumulating in developed countries even when only the terrestrial biosphere is considered…”
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Nitrate in United Kingdom Rivers: Policy and Its Outcomes Since 1970 by Burt, T. P, Howden, N. J. K, Worrall, F, Whelan, M. J, Bieroza, M

“…Modern conventional farming provides Western Europe and North America with reliable, high quality, and relatively cheap supplies of food and fiber,…”
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Phosphorus in groundwater--an overlooked contributor to eutrophication? by Holman, I.P, Whelan, M.J, Howden, N.J.K, Bellamy, P.H, Willby, N.J, Rivas-Casado, M, McConvey, P

“…This paper presents the first international assessment of phosphorus concentrations in groundwater, using data from the Republic of Ireland, Northern Ireland,…”
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Nitrate concentrations and fluxes in the River Thames over 140 years (1868-2008): are increases irreversible by Howden, N.J.K, Burt, T.P, Worrall, F, Whelan, M.J, Bieroza, M

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Assessment of sample frequency bias and precision in fluvial flux calculations – An improved low bias estimation method by Worrall, F., Howden, N.J.K., Burt, T.P.

“…•The interpolation methods lead to 60% underestimation for monthly sampling.•Extrapolation methods based on fixed sampling period monitoring proved to be…”
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A method of estimating in-stream residence time of water in rivers by Worrall, F., Howden, N.J.K., Burt, T.P.

“…•The method estimates the average in-stream residence time of water across catchments.•The method works across a range of flows and from gauging data.•For an…”
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An assessment of the risk to surface water ecosystems of groundwater P in the UK and Ireland by Holman, I.P., Howden, N.J.K., Bellamy, P., Willby, N., Whelan, M.J., Rivas-Casado, M.

“…A good quantitative understanding of phosphorus (P) delivery is essential in the design of management strategies to prevent eutrophication of terrestrial…”
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Seeing the climate through the trees: observing climate and forestry impacts on streamflow using a 60‐year record by Burt, T. P, Howden, N. J. K, McDonnell, J. J, Jones, J. A, Hancock, G. R

“…Paired watershed experiments involving the removal or manipulation of forest cover in one of the watersheds have been conducted for more than a century to…”
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Temporal and spatial analysis of nitrate concentrations from the Frome and Piddle catchments in Dorset (UK) for water years 1978 to 2007: Evidence for nitrate breakthrough? by Howden, N.J.K., Burt, T.P.

“…This paper analyses time series of nitrate concentration for 35 sites throughout the Frome and Piddle catchments in southern England for the period 1978–2007…”
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Modelling long-term diffuse nitrate pollution at the catchment-scale: Data, parameter and epistemic uncertainty by Howden, N.J.K., Burt, T.P., Mathias, S.A., Worrall, F., Whelan, M.J.

“…► We develop a model to predict annual nitrate concentrations from land-use data. ► Water quality response lags changing land use / management by 37 years. ►…”
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Coronary perforation incidence and temporal trends (COPIT): systematic review and meta-analysis by Mikhail, P, Howden, N, Monjur, M, Said, C, Jeyaprakash, P, Bland, A, Collison, D, McCartney, P, Adamson, C, Morrow, A, Carrick, D, McEntegart, M, Ford, T

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An analysis of rainfall across the British Isles in the 1870s by Burt, T. P., Jones, P. D., Howden, N. J. K.

“…ABSTRACT Monthly records for the period 1871–1970 from 91 stations across the British Isles are used to place very high rainfall totals during the 1870s, 1872…”
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The UK’s total nitrogen budget from 1990 to 2020: a transition from source to sink? by Worrall, F., Burt, T. P., Howden, N. J. K., Whelan, M. J.

“…This study estimates the annual total nitrogen balance of the UK from 1990 to 2020. The following inputs of nitrogen are considered: inorganic fertilizer,…”
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On the value of long-term, low-frequency water quality sampling: avoiding throwing the baby out with the bathwater by Burt, T. P., Howden, N. J. K., Worrall, F., McDonnell, J. J.

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The relationship between land use and surface water resources in the UK by Weatherhead, E.K., Howden, N.J.K.

“…Land use and water resources are inextricably entwined. The need to protect the quantity and quality of water resources can impact potential land uses and land…”
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A homogenous daily rainfall record for the Radcliffe Observatory, Oxford, from the 1820s by Burt, T. P., Howden, N. J. K.

“…A record of daily rainfall totals from 1827 at the Radcliffe Observatory, Oxford, United Kingdom, is presented. Changing instrumentation over the period and…”
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Understanding the diurnal cycle in fluvial dissolved organic carbon – The interplay of in-stream residence time, day length and organic matter turnover by Worrall, F., Howden, N.J.K., Burt, T.P.

“…•This is the largest number of diurnal cycles in rivers ever studied.•No consistent diurnal cycle was found.•Diurnal cycles need in-stream residence time and…”
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Computed tomographic angiography measures of coronary plaque in clinical trials: opportunities and considerations to accelerate drug translation by Howden, N, Branch, K, Douglas, P, Gray, M, Budoff, M, Dewey, M, Newby, D E, Nicholls, S J, Blankstein, R, Fathieh, S, Grieve, S M, Figtree, G A

“…Atherosclerotic coronary artery disease (CAD) is the causal pathological process driving most major adverse cardiovascular events (MACE) worldwide. The complex…”
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