Journal articles: 'Dee River'

1

SAUNDERS, J. R. "RIVER DEE VIADUCT: DESIGN." Proceedings of the Institution of Civil Engineers 90, no. 2 (April 1991): 237–57. http://dx.doi.org/10.1680/iicep.1991.14027.

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THOMAS, C. G., and S. D. BOURNE. "RIVER DEE VIADUCT: CONSTRUCTION." Proceedings of the Institution of Civil Engineers 90, no. 2 (April 1991): 259–80. http://dx.doi.org/10.1680/iicep.1991.14028.

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Taylor, G., R. Howes, L. Dulvenvoorden, and V. Vicente-Beckett. "Downstream flow event sampling of acid mine drainage from the historic Mt Morgan Mine." Water Science and Technology 45, no. 11 (June 1, 2002): 29–34. http://dx.doi.org/10.2166/wst.2002.0376.

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Numerous scientific reports concur that the Dee River is heavily impacted by acid mine drainage from the historic gold and copper mine at Mt Morgan, Central Queensland. The water quality along the Dee River, for 18 km downstream of the mine site to its junction with Fletcher Creek, is characterised by low pH, typically 2.8 to 4.2. With respect to metal concentrations, the Dee River has been described as one of Australia's most polluted rivers. Measurements of pH along the Dee River clearly demonstrated the movement of a slug of acidic water down the river during each of the four flow events between November 2000 and February 2001. Laboratory analysis of water samples collected during November indicated Al, Cu and Zn concentrations orders of magnitude above ANZECC guidelines. Fish kills occurred with each flow event and killed an estimated total of 26,000 fish.

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4

Lambert, Allan. "Regulation of the River Dee." Regulated Rivers: Research & Management 2, no. 3 (July 1988): 293–308. http://dx.doi.org/10.1002/rrr.3450020308.

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Wickham-Jones, Caroline, Richard Bates, Alison Cameron, Ann Clarke, Diane Collinson, Sheila Duthie, Tim Kinnaird, et al. "Prehistoric communities of the River Dee." Scottish Archaeological Internet Reports 97 (November 8, 2021): 1–196. http://dx.doi.org/10.9750/issn.2056-7421.2021.97.1-196.

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This volume presents the results of archaeological fieldwork undertaken along the River Dee, Aberdeenshire, north-east Scotland, by the Mesolithic Deeside voluntary community archaeology group between 2017 and 2019. A total of 42 fields were investigated, from which over 11,000 lithics were recovered, representing at least 15 archaeological sites and a span of human activity covering some 10,000 years from around 12,000 BC to c 2000 BC. Finds from the Late Upper Palaeolithic, Mesolithic, Neolithic and Bronze Age were present. Work comprised fieldwalking, test pitting, specialist analysis, and small-scale excavation. The investigation described here is significant not just for the light it throws on the early prehistoric populations along the River Dee but also for the methodology by which investigation was undertaken, as this provides a potential model for work in other areas. Both aspects are covered in the report. The River Dee flows between postglacial gravel and sand terraces, the structure of which has played an important role for the early settlers of the area, and this is covered in some detail in order to provide the physical background framework for the sites. There are also sections on more specialised geophysical and geoscience techniques where these were undertaken, together with a summary of research on the palaeoenvironmental conditions throughout the millennia of prehistory. The artefactual evidence comprises lithic assemblages which were all catalogued as fieldwork progressed; the contents of each site are presented, together with more detailed analysis of the finds from test pitted sites. Finally, given the rich archaeological record from the area, the results of the present project are set into the wider context of the evidence for prehistoric settlement along the river, and there is consideration of future directions for further fieldwork. While all authors have contributed to the whole volume, individual sections that present specialist work by specific teams have been attributed. The distribution maps and GIS are the work of Irvine Ross. Dates given are calibrated BC dates. The Nethermills Farm NM4 dates are calibrated using the Oxford Radiocarbon Accelerator Unit calibration program OxCal 4 (Bronk Ramsey 2009) and their date ranges are calibrated using the IntCal13 atmospheric calibration curve (Reimer et al 2013). Optically stimulated luminescence (OSL) was used to profile sediment accumulations on some of the sites and obtain information relating to site formation, but it was not used for dating in any of the projects.

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Williams, Thomas M., Daniel Hitchcock, Bo Song, and Thomas O’Halloran. "Hurricane Florence Flooding in Georgetown County: A Qualitative Explanation of the Interactions of Estuary and Tidal River." Journal of South Carolina Water Resources, no. 6 (January 1, 2020): 36–45. http://dx.doi.org/10.34068/jscwr.06.04.

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This paper examines data from 18 USGS gauges in the lower Pee Dee Basin in an effort to explain the behavior of the flooding following Hurricane Florence (2018) in Georgetown County, South Carolina. Despite record or near-record flooding in all the tributaries to the Winyah Bay estuary, water levels near the city of Georgetown were well below predicted heights. Floodplain storage in the lower Great Pee Dee, Lynches, and Little Pee Dee River valleys stored over 1.2 million acre-feet of floodwaters, delaying peak stage near Bucksport for five days and reducing peak flow into the Winyah Bay tidal river/estuary system by nearly 50%. An unknown amount of flow from the Winyah Bay tidal river/estuary system flowed through the Atlantic Intracoastal Water Way to Little River rather than through Winyah Bay. The resulting freshwater flow to Winyah Bay only moved the point of tidal stagnation (where upstream tidal flow balances downstream freshwater flow) to near Georgetown. Since the city of Georgetown was near the point of stagnation, water level there was driven by ocean tidal height rather than river flood stage. The lack of discharge data from the tidal rivers in Georgetown County prevents evaluation of the importance of each of these factors and will limit efforts to make quantitative predictions of future flooding in the county.

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Wade, A. J., C. Neal, R. P. Smart, and A. C. Edwards. "Calcite saturation in the River Dee, NE Scotland." Science of The Total Environment 282-283 (January 2002): 327–40. http://dx.doi.org/10.1016/s0048-9697(01)00922-6.

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TAYLOR, G. S., P. HILLIS, and I. WALKER. "Pilot-Plant Trials on River Dee Water at Huntington." Water and Environment Journal 7, no. 4 (August 1993): 333–42. http://dx.doi.org/10.1111/j.1747-6593.1993.tb00854.x.

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Changxing, Shi, Geoffrey Petts, and Angela Gurnell. "Bench development along the regulated, lower River Dee, UK." Earth Surface Processes and Landforms 24, no. 2 (February 1999): 135–49. http://dx.doi.org/10.1002/(sici)1096-9837(199902)24:2<135::aid-esp946>3.0.co;2-2.

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Hawkins, Anthony. "Factors Affecting Atlantic Salmon Populations Adversely; Using the River Dee, Scotland, as an Example." International Marine Science Journal 1, no. 2 (July 30, 2021): 8–41. http://dx.doi.org/10.14302/issn.2643-0282.imsj-21-3899.

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The stocks of the Atlantic salmon (Salmo salar) in many rivers in North America and Europe have declined in recent years and are experiencing a crisis. Despite their high degree of legal protection, the quality of their aquatic environments within rivers and in the sea, including local coastal waters, appears to be deteriorating. Salmon survival, has declined both within the sea and within rivers. The status of the Atlantic salmon stocks is considered here, together with the adverse effects of different sources, and those steps that may need to be taken to improve the condition of the salmon. This paper is intended to assist management bodies in taking steps to resolve the problems that exist for salmon, both within rivers and in the sea. It makes particular use of information available on the River Dee in Scotland.

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Gurnell, A. M., S. R. Downward, and R. Jones. "Channel planform change on the river dee meanders, 1876–1992." Regulated Rivers: Research & Management 9, no. 4 (December 1994): 187–204. http://dx.doi.org/10.1002/rrr.3450090402.

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Aprahamian, Miran W., Ian C. Davidson, and Richard J. Cove. "Life history changes in Atlantic salmon from the River Dee, Wales." Hydrobiologia 602, no. 1 (March 18, 2008): 61–78. http://dx.doi.org/10.1007/s10750-008-9286-3.

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13

Redwood, Stewart D. "The history of the ferries across the River Dee at Aberdeen." Northern Scotland 14 (First Serie, no. 1 (May 1994): 1–25. http://dx.doi.org/10.3366/nor.1994.0002.

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14

CAMPBELL, A. T., A. J. READE, I. WARBURTON, and R. F. WHITEMAN. "Identification of Odour Problems in the River Dee: A Case Study." Water and Environment Journal 8, no. 1 (February 1994): 52–58. http://dx.doi.org/10.1111/j.1747-6593.1994.tb01092.x.

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15

Staton, Joseph, Stephen Borgianini, Ian Gibson, Renae Brodie, and Thomas Greig. "Limited gene flow in Uca minax (LeConte 1855) along a tidally influenced river system." Open Life Sciences 9, no. 1 (January 1, 2014): 28–36. http://dx.doi.org/10.2478/s11535-013-0200-7.

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AbstractFor crab larvae, swimming behaviors coupled with the movement of tides suggests that larvae can normally move upstream within estuaries by avoiding ebb tides and actively swimming during flood tides (i.e., flood-tide transport [FTT]). Recently, a 1-D transport model incorporating larval behavior predicted that opposing forces of river discharge and tidal amplitude in the Pee Dee River/Winyah Bay system of South Carolina, USA, could limit dispersal within a single estuary for downstream transport as well as become a dispersal barrier to recruitment of late stage larvae to the freshwater adult habitats of Uca minax (LeConte 1855). We sequenced 394-bp of the mitochondrial cytochrome apoenzyme b for 226 adult U. minax, from four locales along a 49-km stretch of the Pee Dee River/Winyah Bay estuary, above and below the boundary of salt intrusion. Results of an analysis of molecular variance (AMOVA) and an exact test of population differentiation showed a small, but statistically significant (α=0.05) population subdivision among adults of the 4 subpopulations, as well as all subpopulations being significantly differentiated (α=0.05). This pattern fitted with model predictions, which implies that larval transport within the tidally influenced river system is limited.

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SAUNDERS, J. R., C. G. THOMAS, S. D. BOURNE, B. P. PRITCHARD, G. HAIDER, K. HUDDART, D. PALMER, et al. "DISCUSSION OF PAPERS 9720 & 9721. RIVER DEE VIADUCT: DESIGN AND CONSTRUCTION." Proceedings of the Institution of Civil Engineers - Structures and Buildings 94, no. 3 (August 1992): 359–63. http://dx.doi.org/10.1680/istbu.1992.20296.

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17

NUTTALL, D., and O. T. PARRY. "The effect of environmental factors on coliphages in the Welsh River Dee." Letters in Applied Microbiology 4, no. 5 (November 1987): 117–20. http://dx.doi.org/10.1111/j.1472-765x.1987.tb01596.x.

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18

APRAHAMIAN, M. W. "Age structure of eel, Anguilla anguilla (L.), populations in the River Severn, England, and the River Dee, Wales." Aquaculture Research 19, no. 4 (October 1988): 365–76. http://dx.doi.org/10.1111/j.1365-2109.1988.tb00586.x.

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19

Nichol, D., and S. A. Wilson. "Foundation geology of the River Dee estuary cable-stayed bridge, Flintshire, North Wales." Engineering Geology 63, no. 1-2 (January 2002): 131–39. http://dx.doi.org/10.1016/s0013-7952(01)00077-1.

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20

Harkness, Deborah E. "Shows in the Showstone: A Theater of Alchemy and Apocalypse in the Angel Conversations of John Dee (1527-1608/9)*." Renaissance Quarterly 49, no. 4 (1996): 707–37. http://dx.doi.org/10.2307/2862959.

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On 16 November 1582 John Dee and his assistant, Edward Kelly, gathered in the study of Dee's home in Mortlake, a small town located southwest of London on the river Thames. It was five o'clock on a Friday afternoon, and the latest in a series of dramatic events was unfolding. This event, like the events that preceded it and those that followed, involved an extraordinary cast of characters and contained a significant philosophical message. In Mortlake, England's most important natural philosopher was preparing to engage in what was becoming a habitual exercise: conversing with angels, whom Dee referred to as his “scholemasters,” about matters relevant to his study of the natural and supernatural worlds.

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21

Griffin, Melissa, Mark Malsick, Hope Mizzell, and Leah Moore. "Historic Rainfall and Record-Breaking Flooding from Hurricane Florence in the Pee Dee Watershed." Journal of South Carolina Water Resources, no. 6 (January 1, 2020): 28–35. http://dx.doi.org/10.34068/jscwr.06.03.

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For the third time in four years, record-breaking flooding occurred in South Carolina. Hurricane Florence, which made landfall near Wrightsville Beach, North Carolina, on September 14, 2018, moved slowly across South Carolina from September 14–17, 2018. Over those four days, heavy rain fell over portions of the Pee Dee Watershed and eastern North Carolina, with over 30 inches of rain measured by an observer in Swansboro, North Carolina. Most of the excessive rainfall was confined to the Pee Dee region, with reported totals of over 24 inches in Horry County, while closer to the Savannah River Valley observers measured less than an inch of rain. Unlike the more recent flooding events across the state, not as many rainfall records were set during this event. The amount of rainfall at various locations, and at different time intervals (1-day, 2-day, 3-day, and 4-day), had a statistical probability of occurrence of 0.1%, or 1 in 1,000 chance of happening in any given year, according to the National Oceanic and Atmospheric Administration (NOAA) Atlas 14 (Bonnin et al., 2004). The rainfall associated with Hurricane Florence produced a long duration and significant flood that impacted many of the same communities still recovering from the October 2015 floods and Hurricane Matthew in 2016. Many of the rivers and streams within the Pee Dee Watershed experienced major or extreme flooding, with six stream gauges reaching record peaks, some surpassing the records set in 2016. This report provides an overview of the antecedent conditions, a synoptic summary of the event, and documentation on the meteorological and hydrological impacts observed across the Palmetto State.

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Z.T., Smoot, A. D. Jayakaran, D. M. Park, and D. R. Hitchcock. "Hydraulic Geometry Curves in the Pee Dee Watershed." Journal of South Carolina Water Resources, no. 2 (June 1, 2015): 63–69. http://dx.doi.org/10.34068/jscwr.02.07.

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Hydraulic bankfull geometry or regional curves are a useful metric for evaluating stream stability and planning stream restoration projects. Streams and tributaries within the Middle Pee Dee River Basin (MPDRB) in South Carolina drain an agrarian and forested landscape characterized by water conveyance structures, such as active and historical ditches which support forestry and agriculture. While streams in the region are generally stable, pockets of this landscape are beginning to face increasing pressure from development with signs of stream instability apparent in several locations as evidenced by streams in and around the urbanizing areas around Darlington and Florence, SC. In order to provide a foundation for potential stream restoration projects in the area, 15 sites in the MPDRB were selected on the basis of catchment area, in categories of small (km2), small-medium (50-500 km2), medium (500-1000 km2), and large (>1000 km2). Bankfull geometries, channel substrate, flow and water temperature were measured at all the sites and a set of regional hydraulic geometry curves developed. The frequency of bankfull flows that occurred over the period of sampling were also estimated to document floodplain connectivity. Results suggest that bankfull dimensions in the MPDRB were well correlated with bankfull discharge and drainage area. The results showed that hydraulic geometry in the region were similar to those measured in a similar physiographic region in North Carolina. The study also shows that streams in the MPDRB experience bankfull exceeding flows much more frequently than streams in other parts of the country, but at a frequency that is comparable to streams in the coastal plains of North Carolina.

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Jayakaran, A. D., Z. T. Smoot, D. M. Park, and D. R. Hitchcock. "Relating stream function and land cover in the Middle Pee Dee River Basin, SC." Journal of Hydrology: Regional Studies 5 (March 2016): 261–75. http://dx.doi.org/10.1016/j.ejrh.2015.12.064.

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24

Smith, P. J., K. J. Beven, and K. Horsburgh. "Data-based mechanistic modelling of tidally affected river reaches for flood warning purposes: an example on the River Dee, UK." Quarterly Journal of the Royal Meteorological Society 139, no. 671 (April 5, 2012): 340–49. http://dx.doi.org/10.1002/qj.1926.

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Breeze, Andrew. "Welsh Chwant ‘Desire’ and Trisantona ‘River Trent’ in Tacitus." Вопросы Ономастики 18, no. 1 (2021): 128–39. http://dx.doi.org/10.15826/vopr_onom.2021.18.1.005.

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The article deals with the ancient name of the longest river solely in England, the Trent, flowing past Stoke-on-Trent and Nottingham to the North Sea. In a passage that has raised debate and led to a number of misinterpretations in literature, Tacitus recorded it as (emended) Trisantona, which has been explained from Old Irish sét ‘course’ and Welsh hynt ‘path’ as ‘trespasser, one that overflows’ (of a stream liable to flood). Trisantona or the like would be the name of other rivers, including the Tarrant in Dorset and Tarannon or Trannon in mid-Wales. Yet the interpretation ‘trespasser’ has grave phonetic and semantic defects. They are removed by a new etymology on the basis of Old Irish sét ‘treasure’ (Modern Irish seoid) and Welsh chwant ‘desire’ from hypothetical Common Celtic *suanto-. The paper provides textual, historical and linguistic arguments supporting this etymological interpretation. Trisantona or (preferably) reconstructed *Trisuantona (from *Tresuantona) would thus (instead of ‘trespasser, flooder’) mean ‘she of great desire, she who is much loved.’ The implication is that the Trent (like the English rivers Dee ‘goddess’ or Brent ‘she who is exalted’) was regarded as a Celtic female deity, a passionate and perhaps dangerous entity.

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Tracy, Bryn H., Robert E. Jenkins, and Wayne C. Starnes. "History of Fish Investigations in the Yadkin–Pee Dee River Drainage of North Carolina and Virginia with an Analysis of Nonindigenous Species and Invasion Dynamics of Three Species of Suckers (Catostomidae)." Journal of North Carolina Academy of Science 129, no. 3 (September 1, 2013): 82–106. http://dx.doi.org/10.7572/2167-5880-129.3.82.

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Abstract North Carolina's river drainages continue to lose their faunal distinctiveness as nonnative fish species establish themselves and expand their distributions, resulting in biotic homogenization. One such example is the Pee Dee drainage on the Atlantic Slope. It is the most speciose drainage in North Carolina, inhabited by 113 species of which 34 are nonindigenous, many introduced from adjacent drainages. The history of fish investigations in the Pee Dee in North Carolina and Virginia is detailed herein. The fauna was first sampled by Cope in 1869 at two conjoined sites—Yadkin River and Gobble Creek, a small tributary at the Yadkin River site (Cope 1870). Cope described numerous new taxa from the drainage, and many subsequent researchers provided data that show additions of nonnative faunal elements. As a case study, indications are that Hypentelium roanokense, Roanoke Hog Sucker, Hypentelium nigricans, Northern Hog Sucker, and Moxostoma rupiscartes, Striped Jumprock, were cryptically introduced after the late 1950s. The Roanoke Hog Sucker, introduced as recently as the 2000s, is found only in three tributaries of the Ararat subsystem in North Carolina and Virginia. The Northern Hog Sucker has expanded its range very little, confined primarily to the North Fork Reddies and Ararat subsystems and a short segment of the mainstem Yadkin River in North Carolina. The Striped Jumprock is now in much of the upper Yadkin system, but not in Virginia, and at several sites in the South Yadkin subsystem. Natural dispersal of all three species is limited by dams and impoundments, but the dispersal by Striped Jumprock has probably been aided by multiple bait bucket introductions. Consequences of nonindigenous species introductions in the drainage are well known for some species but unknown for the Roanoke Hog Sucker, Northern Hog Sucker, and Striped Jumprock.

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Cragg-Hine, D., D. C. Bradley, and K. Hendry. "Changes in salmon smolt ages in the Welsh River Dee over a 66 year period." Journal of Fish Biology 68, no. 6 (June 2006): 1891–95. http://dx.doi.org/10.1111/j.0022-1112.2006.01062.x.

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Potts, W. T. W., and A. J. C. Malloch. "River flow, Atlantic salmon (Salmo salar L.) movement and rod catch in the Aberdeenshire Dee." Journal of Fish Biology 39, no. 5 (November 1991): 755–64. http://dx.doi.org/10.1111/j.1095-8649.1991.tb04405.x.

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Twist, H., A. C. Edwards, and G. A. Codd. "Algal growth responses to waters of contrasting tributaries of the River Dee, north-east Scotland." Water Research 32, no. 8 (August 1998): 2471–79. http://dx.doi.org/10.1016/s0043-1354(97)00450-8.

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30

McNair, Douglas B. "Cliff Swallow Breeding Range Expansion Along the Great Pee Dee River Corridor in the Carolinas." Southeastern Naturalist 12, no. 3 (September 2013): 500–513. http://dx.doi.org/10.1656/058.012.0307.

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Gurnell, Angela M. "Channel change on the River Dee meanders, 1946–1992, from the analysis of air photographs." Regulated Rivers: Research & Management 13, no. 1 (January 1997): 13–26. http://dx.doi.org/10.1002/(sici)1099-1646(199701)13:1<13::aid-rrr420>3.0.co;2-w.

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Dawson, Julian J. C., Chris Soulsby, Markus Hrachowitz, Mark Speed, and Doerthe Tetzlaff. "Seasonality ofepCO2at different scales along an integrated river continuum within the Dee basin, NE Scotland." Hydrological Processes 23, no. 20 (September 30, 2009): 2929–42. http://dx.doi.org/10.1002/hyp.7402.

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Wickham-Jones, C. R., G. Noble, S. M. Fraser, G. Warren, R. Tipping, D. Paterson, W. Mitchell, D. Hamilton, and A. Clarke. "New Evidence for Upland Occupation in the Mesolithic of Scotland." Proceedings of the Prehistoric Society 86 (September 16, 2020): 13–42. http://dx.doi.org/10.1017/ppr.2020.8.

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This paper discusses the evidence for periodic human activity in the Cairngorm Mountains of Scotland from the late 9th millennium to the early 4th millennium cal bc. While contemporary paradigms for Mesolithic Europe acknowledge the significance of upland environments, the archaeological record for these areas is not yet as robust as that for the lowland zone. Results of excavation at Chest of Dee, along the headwaters of the River Dee, are set into a wider context with previously published excavations in the area. A variety of site types evidences a sophisticated relationship between people and a dynamic landscape through a period of changing climate. Archaeological benefits of the project include the ability to examine novel aspects of the archaeology leading to a more comprehensive understanding of Mesolithic lifeways. It also offers important lessons in site survival, archaeological investigation, and the management of the upland zone.

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Dekar, Matthew P., Daniel D. Magoulick, and Jeff Beringer. "Bioenergetics assessment of fish and crayfish consumption by river otter (Lontra canadensis): integrating prey availability, diet, and field metabolic rate." Canadian Journal of Fisheries and Aquatic Sciences 67, no. 9 (September 2010): 1439–48. http://dx.doi.org/10.1139/f10-074.

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River otters ( Lontra canadensis ) are important predators in aquatic ecosystems, but few studies quantify their prey consumption. We trapped crayfish monthly as an index of availability and collected otter scat for diet analysis in the Ozark Mountains of northwestern Arkansas, USA. We measured otter daily energy expenditure (DEE) with the doubly labeled water method to develop a bioenergetics model for estimating monthly prey consumption. Meek’s crayfish ( Orconectes meeki ) catch-per-unit-effort was positively related to stream temperature, indicating that crayfish were more available during warmer months. The percentage frequency of occurrence for crayfish in scat samples peaked at 85.0% in summer and was lowest (42.3%) in winter. In contrast, the percentage occurrence of fish was 13.3% in summer and 57.7% in winter. Estimates of DEE averaged 4738 kJ·day–1 for an otter with a body mass of 7842 g. Total biomass consumption ranged from 35 079 to 52 653 g·month–1 (wet mass), corresponding to a high proportion of fish and crayfish in the diet, respectively. Otter consumption represents a large fraction of prey production, indicating potentially strong effects of otters on trophic dynamics in stream ecosystems.

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Smith, G. W., I. P. Smith, and S. M. Armstrong. "The relationship between river flow and entry to the Aberdeenshire Dee by returning adult Atlantic salmon." Journal of Fish Biology 45, no. 6 (December 1994): 953–60. http://dx.doi.org/10.1111/j.1095-8649.1994.tb01065.x.

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Cooksley, Susan L., Mark J. Brewer, David Donnelly, Luigi Spezia, and Angus Tree. "Impacts of artificial structures on the freshwater pearl mussel Margaritifera margaritifera in the River Dee, Scotland." Aquatic Conservation: Marine and Freshwater Ecosystems 22, no. 3 (April 26, 2012): 318–30. http://dx.doi.org/10.1002/aqc.2241.

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Bolaños, Rodolfo, Jennifer M. Brown, Laurent O. Amoudry, and Alejandro J. Souza. "Tidal, Riverine, and Wind Influences on the Circulation of a Macrotidal Estuary." Journal of Physical Oceanography 43, no. 1 (January 1, 2013): 29–50. http://dx.doi.org/10.1175/jpo-d-11-0156.1.

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Abstract The effect of tides, river, wind and Earth’s rotation on the three-dimensional circulation in the Dee, a macrotidal estuary, are investigated using a fine-resolution model. The interactions of the large tidal amplitude, currents, river, and wind-generated circulation require baroclinic and unsteady studies to properly understand the estuarine dynamics. Assessment of the model skill has been carried out by model–observation comparisons for salinity, which is the main control for density, surface elevation, current, and turbulence. Stationary nondimensional numbers were only partially able to characterize the dynamics in this (real) complex macrotidal estuary. At low water, tidal straining and constrained river flow cause stratification. Large spatial variability occurs in the current and residual patterns, with flood-dominated maximum values occurring within the tidal channels. The tides control residual circulation by modulating stratification through tidal straining and bathymetric constraint on river flow. Tide–stratification–river interaction causes an unsteady pattern of residual circulation and tidal pulses. River-induced pulses are enhanced near low tide–inducing density-driven circulation. Wind effects are concentrated near the surface, mainly occurring at high tide because of increased fetch. Even though Coriolis has, overall, a small contribution it produces tidal pulses modifying the current and salinity distribution.

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McEwen, L. J. "The use of long-term rainfall records for augmenting historic flood series: a case study on the upper Dee, Aberdeenshire, Scotland." Transactions of the Royal Society of Edinburgh: Earth Sciences 78, no. 4 (1987): 275–85. http://dx.doi.org/10.1017/s0263593300011214.

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ABSTRACTEstablishing the magnitude and frequency of floods within upland catchments on the basis of short-term gauged runoff records is crucially dependent upon the extent to which the record is truly representative. In the case of the River Dee, upstream of Crathie in Aberdeenshire, gauged discharge records are limited in length. Although the middle Dee has been gauged since 1929, the gauge within the upper catchment has only ten years of record. Thus, reliable estimates of the return intervals of extreme floods for this part of the Dee can only be obtained by using a variety of historical sources to extend the flood series.Long-term rainfall records, where available, provide a valuable independent check on the reconstructed flood series. Such rainfall records, when analysed in terms of the magnitude, frequency and duration of major events, should, in general terms, correspond with the flood series. In this paper, the recurrence interval of extreme rainfalls of varying magnitude and duration in upper Deeside is estimated by extreme value analysis of the annual maximum series. The frequency of rainfall events above varying thresholds is also assessed. The existence of climatic fluctuations giving highly variable recurrence intervals for rainfall events of the same magnitude is demonstrated. Finally, the seasonality of frequent flood-producing storms is analysed. Patterns observed within the rainfall record are compared with those previously established within the historic flood series to substantiate and augment the flood record.

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Abbas, Salam A., Yunqing Xuan, and Ryan T. Bailey. "Assessing Climate Change Impact on Water Resources in Water Demand Scenarios Using SWAT-MODFLOW-WEAP." Hydrology 9, no. 10 (September 22, 2022): 164. http://dx.doi.org/10.3390/hydrology9100164.

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In this article, we present the use of the coupled land surface model and groundwater flow model SWAT-MODFLOW with the decision support tool WEAP (Water Evaluation and Planning software) to predict future surface-water abstraction scenarios in a complex river basin under conditions of climate change. The modelling framework is applied to the Dee River catchment in Wales, United Kingdom. Regarding hydrology, the coupled model improves overall water balance and low-streamflow conditions compared with a stand-alone SWAT model. The calibrated SWAT-MODFLOW is employed with high-resolution climate model data from the UKCP18 project with the future scenario of RCP85 from 2020 to 2040. Then, water supply results from SWAT-MODFLOW are fed into WEAP as input for the river reach in the downstream region of the river basin. This system is utilized to create various future scenarios of the surface-water abstraction of public water supply in the downstream region—maximum licensed withdraw, 50% authorized abstractions, monthly time series with 1% increases in water use, and maximum water withdraw per year based on historical records repeated every year with 1% increases in water use—to estimate the unmet demands and streamflow requirement. This modelling approach can be used in other river basins to manage scenarios of supply and demand.

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JAHIRUDDIN, M., R. SMART, A. WADE, C. NEAL, and M. CRESSER. "Factors regulating the distribution of boron in water in the River Dee catchment in north east Scotland." Science of The Total Environment 210-211 (March 24, 1998): 53–62. http://dx.doi.org/10.1016/s0048-9697(98)00044-8.

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Smith, I. P., and G. W. Smith. "Tidal and diel timing of river entry by adult Atlantic salmon returning to the Aberdeenshire Dee, Scotland." Journal of Fish Biology 50, no. 3 (March 1997): 463–74. http://dx.doi.org/10.1111/j.1095-8649.1997.tb01942.x.

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Weatherley, N. S. "The diet and growth of O-group flounder, Platichthys flesus (L.), in the River Dee, North Wales." Hydrobiologia 178, no. 3 (July 1989): 193–98. http://dx.doi.org/10.1007/bf00006026.

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Abbas, Salam A., Yunqing Xuan, and Xiaomeng Song. "Quantile Regression Based Methods for Investigating Rainfall Trends Associated with Flooding and Drought Conditions." Water Resources Management 33, no. 12 (September 2019): 4249–64. http://dx.doi.org/10.1007/s11269-019-02362-0.

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Abstract Conducting trend analysis of climatic variables is one of the key steps in many climate change impact studies where trend is often checked against aggregated variables. However, there is also a strong need to investigate the trend of the data in different regimes – examples include high flow versus low flow, and heavy precipitation versus prolonged dry period. For this matter, quantile regression (QR) based methods are preferred as they can reveal the temporal dependencies of the variable in question for not only the mean value, but also its quantiles. As such, the tendencies revealed by the QR methods are more informative and helpful in studies where different mitigation methods need to be considered at different severity levels.In this paper, we demonstrate the use of several quantile regressions methods to analyse the long-term trend of rainfall records in two climatically different regions: The Dee River catchment in the United Kingdom, for which daily rainfall data of 1970–2004 are available; and the Beijing Metropolitan Area in China for which monthly rainfall data from 1950 to 2012 are available. Two quantiles are used to represent heavy rainfall condition (0.98 quantile) and severe dry condition (0.02 quantile). The trends of these two quantiles are then estimated using linear quantile regression before being spatially interpolated to demonstrate their spatial distribution (for Dee river only). The method is also compared with traditional indices such as SPI. The results show that the quantile regression method can reveal patterns for both extremely wet and dry conditions of the areas. The clear difference between trends at the chosen quantiles manifests the utility of QR in this context.

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Williams, Bronwyn W., and Anna J. Phillips. "A new species of Pterodrilus (Branchiobdellida: Clitellata) from the upper Yadkin-Pee Dee River Basin of North Carolina." Journal of Natural History 55, no. 23-24 (June 18, 2021): 1491–98. http://dx.doi.org/10.1080/00222933.2021.1949505.

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Walker, Fred M. "Ships of the Chester River: Shipbuilding on the Dee from Chester to the Point of Ayr 1800– 1942." Mariner's Mirror 106, no. 4 (October 1, 2020): 494–95. http://dx.doi.org/10.1080/00253359.2020.1780795.

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Alabaster, J. S. "The temperature requirements of adult Atlantic salmon, Salmo salar L., during their upstream migration in the River Dee." Journal of Fish Biology 37, no. 4 (January 24, 2006): 659–61. http://dx.doi.org/10.1111/j.1095-8649.1990.tb05901.x.

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Darden, T. L., and C. M. Tarpey. "Genetic Characterization of the Savannah and Pee Dee River Populations of Robust Redhorse (Moxostoma robustum) with Conservation Implications." Copeia 2014, no. 1 (March 2014): 70–78. http://dx.doi.org/10.1643/ci-12-089.

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DAVY-BOWKER, JOHN, MICHAEL J. HAMMETT, QUENTIN MAUVISSEAU, and MICHAEL J. SWEET. "Rediscovery of the critically endangered ‘scarce yellow sally stonefly’ Isogenus nubecula in United Kingdom after a 22 year period of absence." Zootaxa 4394, no. 2 (March 13, 2018): 295. http://dx.doi.org/10.11646/zootaxa.4394.2.12.

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The critically endangered ‘scarce yellow sally stonefly’ Isogenus nubecula (Newman, 1833) (Plecoptera: Perlodidae) was rediscovered in the United Kingdom (UK) in 2017. This rediscovery comes after a 22-year period of absence despite numerous surveys since its last record in 1995. This species is one of the rarest stoneflies in the UK and Europe and its rediscovery is of international significance, being the westernmost point in Europe where the species is found, with the next nearest populations occurring in Austria and western Hungary, Slovakia, and central Sweden. The species is classed as pRDB2 (vulnerable), however is not listed in the British Red Data Book despite only being present (as far as records detail) in one river, the River Dee in North Wales, UK. Only fourteen individuals were caught and the need for conservation of this rare stonefly is therefore of paramount importance. We have made recommendations for the need to increase survey effort using environmental DNA (eDNA) techniques in order to fully understand the species range in this river and those in the surrounding area. The DNA sequence of I. nubecula has been uploaded on GenBank for further genetic studies. Captive rearing could also be explored with possible reintroductions to sites within its former UK range.

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Harris, Julianne E., and Joseph E. Hightower. "Identification of American Shad Spawning Sites and Habitat Use in the Pee Dee River, North Carolina and South Carolina." North American Journal of Fisheries Management 31, no. 6 (December 2011): 1019–33. http://dx.doi.org/10.1080/02755947.2011.633686.

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Stutter, Marc, Richard Smart, and Malcolm Cresser. "Calibration of the sodium base cation dominance index of weathering for the River Dee catchment in north-east Scotland." Applied Geochemistry 17, no. 1 (January 2002): 11–19. http://dx.doi.org/10.1016/s0883-2927(01)00090-7.

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Journal articles on the topic 'Dee River'

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