搜索结果: 1-15 共查到“海洋地球物理学 over a lake”相关记录38条 . 查询时间(0.084 秒)
Lake in a Bottle:A Laboratory Demonstration of the Unusual Stability Properties of Freshwater
Lake in a Bottle Unusual Stability Properties Freshwater
2015/7/13
Using simple laboratory gear, students can simulate the stratification properties of a freshwater lake and the impact of salt on the relationship between temperature and density. Because some students...
Stratification and horizontal exchange in Lake Victoria, East Africa
Stratification horizontal exchange Lake Victoria East Africa
2014/10/16
We characterize stratification patterns over diel, seasonal, and annual time scales in inshore and offshore regions of Lake Victoria, East Africa; determine conditions leading to horizontal exchanges;...
The regional abundance and size distribution of lakes and reservoirs in the United States and implications for estimates of global lake extent
The regional abundance size distribution lakes reservoirs the United States implications estimates of global lake extent
2014/4/2
We analyzed complete geospatial data for the 3.5 million lakes and reservoirs larger than 0.001 km2, with a combined surface area of 131,000 km2, in the contiguous United States (excluding the Laurent...
Roles of phosphorus and ultraviolet radiation in the strength of phytoplankton–zooplankton coupling in a Mediterranean high mountain lake
Roles of phosphorus ultraviolet radiation
2014/4/17
Ultraviolet solar radiation (UVR) and atmospheric nutrient inputs associated with aerosols are major
worldwide stressors that simultaneously affect species and the interaction among them. A 2 3 5 fie...
Distribution, morphology, and formation of pockmarks in Lake Constance, Germany
Distribution morphology pockmarks
2014/4/17
Pockmarks are well known in the marine environment but almost unreported from limnic systems. In Lake
Constance we investigated pockmarks near the mouth of the main tributary, Alpine Rhine River, usi...
Internal waves and the generation of turbulence in the thermocline of a large lake
Internal waves turbulence a large lake
2014/4/17
High-resolution thermistor chain data collected between 5 and 20 m in a large stratified freshwater lake
(Lake Constance) at a water depth of 60 m reveal the frequent occurrence of large-amplitude ($...
Episodes of low dissolved oxygen indicated by ostracodes and sediment geochemistry at Crystal Lake, Illinois, USA
low dissolved oxygen stracodes sediment geochemistry
2014/4/17
Low dissolved oxygen during the summer and early fall controls profundal continental ostracode distribution
in Crystal Lake (McHenry County), Illinois, favoring Cypria ophthalmica and Physocypria glo...
Lake-wide distributions of temperature, phytoplankton, zooplankton, and fish in the pelagic zone of a large lake
temperature phytoplankton zooplankton
2014/4/18
We studied three-dimensional distribution patterns of temperature, phyto- and zooplankton, and fish in the
large, prealpine Lake Constance during spring 2007. A strong westerly wind induced an intens...
Decadal diagenetic effects on d13 C and d15N studied in varved lake sediment
Decadal diagenetic effects varved lake sediment
2014/4/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (d13
C
and d15N), we used a collection of eight freeze cores of annually laminated (varved) lak...
An evaluation of iron bioavailability and speciation in western Lake Superior with the use of combined physical, chemical, and biological assessment
iron bioavailability western Lake Superior
2014/4/18
An iron-dependent cyanobacterial bioreporter (Synechococcus strain KAS101) was used in unison with sizefractionated iron content (.0.45, ,0.45, ,0.02 mm), and chemical characterization of iron complex...
Spatial and temporal variability of prairie lake hydrology as revealed using stable isotopes of hydrogen and oxygen
Spatial temporal variability hydrogen and oxygen
2014/4/17
Evaporation and groundwater fluxes are thought to regulate hydrologic variability in lakes of the northern
Great Plains, but little is known of how the relative importance of these processes may vary...
Quantifying saline groundwater flow into a freshwater lake using the Ra isotope quartet: A case study from the Sea of Galilee (Lake Kinneret), Israel
Quantifying saline groundwater flow freshwater lake
2014/4/17
We investigated the Ra isotope quartet in order to quantify the discharge of saline groundwater into a
freshwater lake. The activities of 226Ra, 228Ra, 223Ra, and 224Ra were measured in the Sea of Ga...
Simulation of multiannual thermal profiles in deep Lake Geneva: A comparison of one-dimensional lake models
Simulation of multiannual thermal deep Lake Geneva
2014/4/17
In this study, we report on the ability of four one-dimensional lake models to simulate the water temperature
profiles of Lake Geneva, the largest water body in Western Europe, over a 10-yr period fr...
Zinc isotope composition of settling particles as a proxy for biogeochemical processes in lakes: Insights from the eutrophic Lake Greifen, Switzerland
Zinc isotope composition a proxy for biogeochemical processes
2014/4/17
The isotope composition of zinc (Zn) was determined in settling particles collected monthly over a year in the
hypolimnion of the eutrophic Lake Greifen (Switzerland) in order to explore the potentia...
Effects of climate on organic carbon and the ratio of planktonic to benthic primary producers in a subarctic lake during the past 45 years
organic carbon benthic primary producers
2014/4/17
The effects of climatic variables on lake-water total organic carbon (TOC) concentrations and benthic and
pelagic primary producers during the past 45 yr were assessed using the sediment records of t...