EurekaMag
+ Translate
+ Most Popular
Investigations on the organic drift in North Swedish streams
Limitations of Using Microsoft Excel Version 2016 (MS Excel 2016) for Statistical Analysis for Medical Research
Phloem necrosis of coffee in Surinam
Anatomy of Mystus seenghala IV Nervous system
Integrated farming system for gardenland conditions of Coimbatore district - an over view
Tetrapleure (Tetrapleura tetraptera), an unknown African medicinal and spice plant
The origin and phylogenetic significance of the trochophoran larvae 2. evolutionary significance of the larvae of coelomate worms and mollusks
Comparison of rice bran and maize bran as feeds for growing and fattening pigs
Enterobacter amnigenus. An unusual human pathogen
Influence of Seriboost foliar application on leaf yield and leaf protein content in mulberry (Morus spp.), in relation to silkworm cocoon production
The identity of the lipstick mold of cultivated mushrooms agaricus bisporus
Advantages and disadvantages of bordeaux mixture and of lime-sulphur used on apples in the growing season
'Pan-sukh' disease of Rice in the Central Provinces
Geological age of the Ptilophyllum flora; a critical reassessment
Study of vitellogenesis in birds; physiological phases & role of folliculin in vitellogenesis
Evaluation of WCT coconut and Komadan coconut
Therapy for acne with saccharomyces boulardii
Evidence for Late Cretaceous N-S dextral shear in the west-central crystalline core, North Cascades, Washington
'Rajeshwari' - a high-yielding white seeded variety of sesame for Andhra Pradesh
Manufacture of Ricotta cheese from whey fortified with skim milk powder using different acidulants
Occurrence of Eutrichophilus mexicanus (Rudow, 1866) and Eutrichophilus lobatus (Ewing, 1936) (Phthiraptera: Trichodectidae) on Sphiggurus villosus (Cuvier, 1825) (Rodentia: Erethizontidae) in Rio de
Factors affecting fruitfulness in durian (Durio zibethinus Murr.). I. Flowering and pollination
Bronchial cuff pressure change caused by left-sided double-lumen endobronchial tube displacement
Some Biological Applications of Organometallic Compounds
The composition of pampas-grass (Cortaderia argentea.)

Determining long time-scale hyporheic zone flow paths in Antarctic streams


Determining long time-scale hyporheic zone flow paths in Antarctic streams



Hydrological Processes 17(9): 1691-1710



ISSN/ISBN: 0885-6087

DOI: 10.1002/hyp.1210

In the McMurdo Dry Valleys of Antarctica, glaciers are the source of meltwater during the austral summer, and the streams and adjacent hyporheic zones constitute the entire physical watershed; there are no hillslope processes in these systems. Hyporheic zones can extend several metres from each side of the stream, and are up to 70 cm deep, corresponding to a lateral cross-section as large as 12 m (super 2) , and water resides in the subsurface year around. In this study, we differentiate between the near-stream hyporheic zone, which can be characterized with stream tracer experiments, and the extended hyporheic zone, which has a longer time-scale of exchange. We sampled stream water from Green Creek and from the adjacent saturated alluvium for stable isotopes of D and (super 18) O to assess the significance and extent of stream-water exchange between the streams and extended hyporheic zones over long time-scales (days to weeks). Our results show that water residing in the extended hyporheic zone is much more isotopically enriched (up to 11 per mil D and 2.2 per mil (super 18) O) than stream water. This result suggests a long residence time within the extended hyporheic zone, during which fractionation has occurred owing to summer evaporation and winter sublimation of hyporheic water. We found less enriched water in the extended hyporheic zone later in the flow season, suggesting that stream water may be exchanged into and out of this zone, on the time-scale of weeks to months. The transient storage model OTIS was used to characterize the exchange of stream water with the extended hyporheic zone. Model results yield exchange rates (alpha ) generally an order magnitude lower (10 (super -5) s (super -1) ) than those determined using stream-tracer techniques on the same stream. In light of previous studies in these streams, these results suggest that the hyporheic zones in Antarctic streams have near-stream zones of rapid stream-water exchange, where "fast" biogeochemical reactions may influence water chemistry, and extended hyporheic zones, in which slower biogeochemical reaction rates may affect stream-water chemistry at longer time-scales. Abstract Copyright (2003), Wiley Periodicals, Inc.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 003707509

Download citation: RISBibTeXText

Related references

Hyporheic zone control of nutrients and algal mats in Antarctic desert streams. Abstracts of Papers for the Annual Meeting - American Society of Limnology and Oceanography 1995: a-35, 1995

Interstitial flow through preferential flow paths in the hyporheic zone of the Oberer Seebach, Austria. Aquatic Sciences 64(3): 307-316, 2002

Riparian trees and flow paths between the hyporheic zone and groundwater in the Oberer Seebach, Austria. International Review of Hydrobiology 88(2): 129-138, 2003

Hydrologic flow paths control dissolved organic carbon fluxes and metabolism in an alpine stream hyporheic zone. Water Resources Research 35(10): 3159-3169, 1999

Sorption Behavior and Long-Term Retention of Reactive Solutes in the Hyporheic Zone of Streams. Journal of Environmental Engineering 130(5): 573-584, 2004

The site-scale saturated zone flow model for Yucca Mountain: calibration of different conceptual models and their impact on flow paths. Journal of Contaminant Hydrology 62-63: 731-750, 2003

Multi-scale streambed topographic and discharge effects on hyporheic exchange at the stream network scale in confined streams. Journal of Hydrology 519: 1997-2011, 2014

A 3D analysis algorithm to improve interpretation of heat pulse sensor results for the determination of small scale flow directions and velocities in the hyporheic zone. Journal of Hydrology 475, 2012

The functional significance of the hyporheic zone in streams and rivers. Annual Review of Ecology and Systematics 29: 59-81, 1998

Inorganic N and P dynamics of Antarctic glacial meltwater streams as controlled by hyporheic exchange and benthic autotrophic communities. Journal of the North American Benthological Society 23(2): 171-188, 2004

Wholestream metabolism in two montane streams: Contribution of the hyporheic zone. Limnology and Oceanography 46(3): 523-531, 2001

Whole-stream metabolism in two montane streams: contribution of the hyporheic zone. Limnology and Oceanography 46(3): 3-31, 2001

Spatial variability in the hyporheic zone refugium of temporary streams. Aquatic Sciences 73(4): 499-511, 2011

Aquatic hyphomycete species are screened by the hyporheic zone of woodland streams. Applied and Environmental Microbiology 80(6): 1949-1960, 2014

Hyporheic zone chemistry and stream-subsurface exchange in two groundwater-fed streams. Canadian Journal of Fisheries and Aquatic Sciences 55(2): 495-506,., 1998