Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Ann Louise Heathwaite"'
High-resolution water quality data obtained with in situ sensors and analysers coupled to flow discharge records can reveal critical information on hydrochemical and biogeochemical functioning of aquatic ecosystems. In this study we explore a rich hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3912abd766bd0467bebc6064ac887f
https://doi.org/10.5194/egusphere-egu21-8314
https://doi.org/10.5194/egusphere-egu21-8314
Publikováno v:
Science of The Total Environment
Recent technological breakthroughs of optical sensors and analysers have enabled matching the water quality measurement interval to the time scales of stream flow changes and led to an improved understanding of spatially and temporally heterogeneous
Autor:
Hao Zhang, Mark Trimmer, Ann Louise Heathwaite, Patrick Byrne, Catherine M. Heppell, K. Lansdown, Andrew Binley
Publikováno v:
Journal of Geophysical Research: Biogeosciences. 120:1093-1109
Anthropogenic nitrogen fixation and subsequent use of this nitrogen as fertilizer has greatly disturbed the global nitrogen cycle. Rivers are recognized hotspots of nitrogen removal in the landscape as interaction between surface water and sediments
Publikováno v:
Environ. Sci.: Processes Impacts. 16:1676-1691
We evaluate different frequencies of riverine nutrient concentration measurement to interpret diffuse pollution in agricultural catchments. We focus on three nutrient fractions, nitrate-nitrogen (NO3-N), total reactive phosphorus (TRP) and total phos
In agricultural catchments, diffuse nutrient fluxes (mainly nitrogen N and phosphorus P), are observed to pollute receiving waters and cause eutrophication. Organic matter (OM) is important in mediating biogeochemical processes in freshwaters. Time s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf6c7e58fcc00e09f746ee26a101710c
https://doi.org/10.1016/j.scitotenv.2016.02.046
https://doi.org/10.1016/j.scitotenv.2016.02.046
Publikováno v:
Frontiers of Environmental Science & Engineering. 8:616-623
As a tool for management, query, visualization and analysis of spatially referred information, GIS has been recognized as a method to aid the modeling of diffuse pollution and visualize the results in a spatial context. A common question in integrati
Autor:
Ann Louise Heathwaite, Andrew Binley, Patrick Keenan, Hao Zhang, Katrina Lansdown, Mark Trimmer, Sami Ullah, Patrick Byrne, Catherine M. Heppell
Publikováno v:
Hydrological Processes. 28:4766-4779
We examined the influence of river stage on subsurface hydrology and pore water chemistry within the hyporheic zone of a groundwater-fed river during the summer baseflow period of 2011. We found river stage and geomorphologic environment to control c
Autor:
Keith Beven, Ann Louise Heathwaite, Richard E. Brazier, R. A. Hodgkinson, Desmond E. Walling, M. Schärer, Philip M. Haygarth, Trevor Page, Paul J. A. Withers, Paul Scholefield
Publikováno v:
Soil Use and Management. 29:175-186
The pathway that delivers mobilized phosphorus (P) from source to surface water is conceptually complex. Firstly P mobilization itself, either through mechanical disturbance of the soil, or through chemical dissolution or weathering is difficult to m
Publikováno v:
Environmental Modelling & Software. 36:19-34
An expert elicitation methodology was developed to integrate scientific knowledge from many studies at different spatial and temporal scales. The methodology utilised a structured one-to-one interview to elicit scale-dependent conceptual models and e
Autor:
L. Pope, C. Reynolds, Keith Beven, Brian Moss, R. Willows, Trevor Page, Ann Louise Heathwaite
Publikováno v:
Freshwater Biology. 57:108-123
1. Rivers and their catchments are complex, dynamic and non-equilibrium systems. Although the general functioning of these ecosystems is familiar, the characteristics of particular sites are often poorly known and accurate prediction of future behavi