| 1. |
- Semadeni-Davies, Annette, et al.
(författare)
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Northern Research Basins Preface
- 2005
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Ingår i: Proceedings of the 15th northern research basins international symposium and workshop. - Lund : Department of Water Resources Engineering, Lund University.
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 2. |
- Bengtsson, Lars, et al.
(författare)
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Theoretical background
- 2000
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Ingår i: Urban Drainage in Specific Climates : Vol II: Urban Drainage in Cold Climates. - Vol II: Urban Drainage in Cold Climates.. ; :40, s. 23-40
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 3. |
- Bengtsson, Lars, et al.
(författare)
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Urban Snow
- 2011
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Ingår i: Encyclopedia of Snow, Ice and Glaciers. - Dordrecht : Springer Netherlands. - 904812641X ; Part 20, s. 1211-1217
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 4. |
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| 5. |
- Fletcher, Tim D., et al.
(författare)
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SUDS, LID, BMPs, WSUD and more : The evolution and application of terminology surrounding urban drainage
- 2015
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Ingår i: Urban Water Journal. - 1573-062X. ; 12:7, s. 525-542
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Tidskriftsartikel (refereegranskat)abstract
- The management of urban stormwater has become increasingly complex over recent decades. Consequently, terminology describing the principles and practices of urban drainage has become increasingly diverse, increasing the potential for confusion and miscommunication. This paper documents the history, scope, application and underlying principles of terms used in urban drainage and provides recommendations for clear communication of these principles. Terminology evolves locally and thus has an important role in establishing awareness and credibility of new approaches and contains nuanced understandings of the principles that are applied locally to address specific problems. Despite the understandable desire to have a 'uniform set of terminology', such a concept is flawed, ignoring the fact that terms reflect locally shared understanding. The local development of terminology thus has an important role in advancing the profession, but authors should facilitate communication between disciplines and between regions of the world, by being explicit and accurate in their application. © 2014 © The work of Tim D. Fletcher is Crown copyright in the Commonwealth of Australia 2014, University of Melbourne. The work of Danielle Dagenais is Copyright of the Crown in Canada 2014, University of Montreal. The work of William Shuster was authored as part of his official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 USC. 105, no copyright protection is available for such works under US Law. William F. Hunt, Richard Ashley, David Butler, Scott Arthur, Sam Trowsdale, Sylvie Barraud, Annette Semadeni-Davies, Jean-Luc Bertrand-Krajewski, Peter Steen Mikkelsen, Gilles Rivard, Mathias Uhl and Maria Viklander hereby waive their right to assert copyright, but not their right to be named as co-authors in the article.
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| 6. |
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| 7. |
- Semadeni Davies, Annette, et al.
(författare)
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Estimating latent heat over a melting arctic snow cover
- 2004
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Ingår i: Nordic Hydrology. - 0029-1277. ; 35:3, s. 175-190
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Tidskriftsartikel (refereegranskat)abstract
- The latent heat flux over snow near Ny-Alesund, Spitsbergen, was investigated for the 1999 snowmelt season to assess different methods of modelling the flux. Snow evaporation had hitherto been estimated as the residual of plot water balance calculations and was subject to measurement errors: hence a modelling solution was sought to make use of existing data. Precipitation, snow depth and albedo we.-e measured daily. Runoff from the plots was recorded continuously. Wind speed, relative humidity and air temperature were measured at two levels (2 and 10 m) every 10 minutes; wind direction was noted hourly. Three models which simulate latent heat were assessed against evaporation and condensation measured by weighing several snow-filled containers each day. Two employ the bulk profile method (within the SNTHERM and CROCUS snowmelt models), while the third is the aerodynamic profile method (APM). Each follows tie measured evaporation until snow-free patches develop after which the APM predicts evaporation whereas the snowmelt models predict condensation. The effect of wind is also noted. A major conclusion of this work is that the complexity of the land surface/atmosphere interactions, particularly when the snow cover breaks up, precludes the use of simple models for determining latent heat.
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| 8. |
- Semadeni Davies, Annette, et al.
(författare)
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Radiation balance of urban snow : a water management perspective
- 2001
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Ingår i: Cold Regions Science and Technology. - 0165-232X .- 1872-7441. ; 33:1, s. 59-76
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Tidskriftsartikel (refereegranskat)abstract
- The radiation balance of urbanised catchments differs from their rural counterparts, with snowpacks experiencing either enhanced or decreased irradiance depending on snowpack location and condition. As snowmelt is largely driven by radiation inputs, changes to localised irradiance (and melt rates) have implications for urban runoff generation. Storm- and wastewater drainage systems in cold regions are currently dimensioned for rain according to practices developed for temperate climates. They are not designed to cope with wintry conditions, which can lead to surface flooding, hydraulic overloads and poor water quality at receiving waters. Net allwave radiation measurements over snow made at the Swedish city of Luleå during April 1997 and 1998 are presented. The 1997 measurements were made in the vicinity of a matt-black-painted metal building at Luleå University of Technology, whereas the 1998 measurements are from a specially constructed 3×6-m black plastic-clad wall built on an open field just outside the town. Black minimises multiple reflections between the snow and walls, while maximising absorption of shortwave radiation by walls. The data were compared to the outputs of an urban radiation model. The results show that urban structures significantly alter radiation over snow. The temperature of the south-facing walls translates to longwave enhancements in the order of 150 W m−2 for several metres from the walls on sunny days. Shaded snow near the north-facing wall showed a net allwave radiation loss of the same order of magnitude. Radiation inputs to snow are similar both to the north and south of walls when the sky is overcast. The need to include snowmelt energetics within design and management techniques is discussed in light of the results.
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| 9. |
- Semadeni Davies, Annette
(författare)
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Response surfaces for climate change impact assessments in urban areas
- 2003
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Ingår i: Water Science and Technology. - 0273-1223. ; 48:9, s. 165-175
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Tidskriftsartikel (refereegranskat)abstract
- Assessment of the impacts of climate change in real-world water systems, such as urban drainage networks, is a research priority for IPCC (intergovernmental Panel of Climate Change). The usual approach is to force a hydrological transformation model with a changed climate scenario. To tackle uncertainty, the model should be run with at least high, middle and low change scenarios. This paper shows the value of response surfaces for displaying multiple simulated responses to incremental changes in air temperature and precipitation. The example given is inflow, related to sewer infiltration, at the Lycksele waste water treatment plant. The range of plausible changes in inflow is displayed for a series of runs for eight GCMs (Global Circulation Model; ACACIA; Carter, 2002, pers. comm.). These runs are summarised by climate envelopes, one for each prediction time-slice (2020, 2050, 2080). Together, the climate envelopes and response surfaces allow uncertainty to be easily seen. Winter inflows are currently sensitive to temperature, but if average temperature rises to above zero, inflow will be most sensitive to precipitation. Spring inflows are sensitive to changes in winter snow accumulation and melt. Inflow responses are highly dependent on the greenhouse gas emission scenario and GCM chosen.
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| 10. |
- Semadeni Davies, Annette, et al.
(författare)
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Snow and snowmelt
- 2000
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Ingår i: Urban Drainage in Specific Climates : Vol II: Urban Drainage in Cold Climates. - Vol II: Urban Drainage in Cold Climates.. ; :40, s. 41-70
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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