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88
� 2003, by the American Society of Limnology and Oceanography, Inc. Horizontal transport and dispersion in the surface layer of a medium-sized lake
"... Lagrangian GPS drifter experiments, carried out in the surface layer of stratified Lake Kinneret (Israel), are presented. Differential kinematic properties and Lagrangian statistics were calculated and used to estimate the dominant mechanisms for horizontal dispersion. On time scales smaller than a ..."
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. In a stratified lake, the surface layer is where most primary production takes place. Knowledge of the processes responsible for horizontal dispersion is therefore of key importance in understanding the biological dynamics of a lake. Small- to medium-sized lakes, in particular, are of ubiquitous nature
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"... The work presented in this paper is part of a study to simulate the degeneration of internal waves, from an initial basin-scale seiche to high-frequency nonlinear internal waves (NLIWs), in a medium-sized lake. To fulfill this objective, a parallel three-dimensional (3D) code with non-hydrostatic ca ..."
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The work presented in this paper is part of a study to simulate the degeneration of internal waves, from an initial basin-scale seiche to high-frequency nonlinear internal waves (NLIWs), in a medium-sized lake. To fulfill this objective, a parallel three-dimensional (3D) code with non
Spatio-temporal dynamics of the basin scale internal waves in Lake Simcoe
"... Lake Simcoe (Canada) suffers from eutrophication and hypoxia, resulting from excessive phosphorus loads. A better understanding of the physical processes responsible for mixing and transport in the lake is needed to analyse the spatial and temporal variability of the phosphorus concentrations. Field ..."
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. Field data and three-dimensional numerical simulations were used to determine the dynamics of the basin scale internal waves in this medium sized lake. The hydrostatic Reynolds-averaged Navier-Stokes equation model, ELCOM, was found to correctly simulate the seasonal stratification and the internal wave
High mountain lakes of the Central Range (Iberian Peninsula): Regional limnology & environmental changes
"... High mountain lake ecosystems in the Iberian Peninsula, being more than 1700 water bodies, are represented mainly by small or medium size lakes (75 % with a surface less than 0.5 Ha.). The knowledge of their regional limnology in Spain is yet uneven and insufficient, as well as their ecological stat ..."
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Cited by 2 (0 self)
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High mountain lake ecosystems in the Iberian Peninsula, being more than 1700 water bodies, are represented mainly by small or medium size lakes (75 % with a surface less than 0.5 Ha.). The knowledge of their regional limnology in Spain is yet uneven and insufficient, as well as their ecological
GOLDSCHMIDT CONFERENCE TOULOUSE i998 Carbon dynamics in a medium-size semiarid basin: The Suquia River, Cordoba (Argentina)
"... This contribution deals with the dynamics and sources of carbon in a medium-size drainage basin from the Pampean Ranges in Central Argentina. The drainage basin has nearly pristine headwaters, and is variably affected by human impacts along its way towards an endorreic saline lake (Mar Chiquita). Th ..."
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This contribution deals with the dynamics and sources of carbon in a medium-size drainage basin from the Pampean Ranges in Central Argentina. The drainage basin has nearly pristine headwaters, and is variably affected by human impacts along its way towards an endorreic saline lake (Mar Chiquita
Application of k- turbulence models to enclosed basins: The role of internal seiches
, 2002
"... [1] A numerical model was developed for the prediction of the density stratification of lakes and reservoirs. It combines a buoyancy-extended k- model with a seiche excitation and damping model to predict the diffusivity below the surface mixed layer. The model was applied to predict the seasonal d ..."
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development of temperature stratification and turbulent diffusivity in two medium-sized lakes over time periods ranging from 3 weeks to 2 years. Depending on the type of boundary condition for temperature, two or three model parameters were optimized to calibrate the model. The agreement between the simulated
Dimethyl sulfide emissions to the atmosphere from lakes of the Canadian boreal region
, 1158
"... Abstract. Dimethyl sulfide (DMS) concentrations were measured over 2 years in 10 lakes situated in northwestern Ontario. Concentrations varied from 0.1 nmol L- • to 100 nmol L- • (geometric mean of 1.2 nmol L-1) during the ice-free season (April to November) of 1995 and 1996. Shallow (1-5 rn depth a ..."
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Cited by 1 (0 self)
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and 1-5 ha area) and medium depth (5-10 m depth and 5-15 ha area) lakes exhibited higher surface water DMS concentrations than deeper and larger lakes (32 m depth and 20-56 ha area). During the fall in the medium size lakes (5-12 rn depth and <15 ha area), DMS concentrations increased markedly by a
VOL 37. NO. 3.(SEF'TEMBER. lW4) P. 270275 ARCTIC Sampling of Snow and, Ice on Lakes
"... ABSTRACT. Three years ' data, based on unusually.large random samples, are combined to characterize the late February snow, white ice, and black ice cover of Elizabeth Lake, Labrador. Similar spatial patterns were found to exist between years with central and marginal locations tending to exhib ..."
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to exhibit consistently above- or below-average thicknesses for particular cover components. It is suggested that maps combining the three years ' data and displaying the resulfs in terms of means and standard deviations.provide a useful basis for designing ice and snow surveys in medium-sized lakes
Habitat Use by Brood-Rearing Waterfowl in Subarctic Québec
, 1995
"... ABSTRACT. Aerial surveys of waterfowl were conducted in subarctic Québec in 1989 and 1990 on randomly selected 100 km2 plots. We used logistic regression for modelling relationships between the presence of waterfowl broods and habitat characteristics. For each species, models of habitat use were gen ..."
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or scaups. Black scoters were observed more often on ponds and less often on medium-sized lakes than surf scoters and scaups. The latter differed in their use of lakes < 10 ha: surf scoters, like black scoters, mostly used unvegetated lakes, while scaups and green-winged teals mostly used vegetated lakes
SURVEY OF A LARGE
"... Abstract.-Fremont Lake, a t ' an altitude of 2,261 m, has an area of 20.61 kin2 and a volunte of 1.69 km3. The maximurn depth is 185 m, which makes it the sevcrith deepest natural lakr in the conterminous IJnited States. Theoretical renewal tirnc is I 1. I years. Temperature data for 1971 indi ..."
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saturation in late July 1970. Thc lake has ii rcniark:tbly low dissolved-solids content of 12.8 mgb, making it one ol the most dilute medium-sized lakes i i i the world. Detailed c:heniical data arc given for the water column at three sites in the lake and lor the influent and t:ffluent streams. Net plankton
Results 1 - 10
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88
