搜索结果: 1-15 共查到“海洋地球物理学 Freshwater”相关记录15条 . 查询时间(0.035 秒)
Freshwater runoff from rivers brings more carbon, nutrients to Arctic Ocean（图）
Freshwater runoff rivers carbon nutrients Arctic Ocean
2020/4/17
A new study by National Science Foundation-funded researchers at the Woods Hole Oceanographic Institution and their colleagues found that freshwater runoff from rivers and continental s...
Interannual to Interdecadal Salinity Variations Observed Near Hawaii:Local and Remote Forcing by Surface Freshwater Fluxes
Interdecadal Salinity Variations Observed Near Hawaii Local and Remote Forcing Surface Freshwater Fluxes
2015/7/20
Ray Schmitt's introduction to this issue underlines the importance of including the oceanic component of the hydrological cycle in considerations of Earth's climate. Spatial and temporal salinity vari...
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...
Fluorescence spectroscopy opens new windows into dissolved organic matter dynamics in freshwater ecosystems: A review
dissolved organic matter dynamics A review
2014/4/17
The biochemical composition of dissolved organic matter (DOM) strongly influences its biogeochemical role in
freshwater ecosystems, yet DOM composition measurements are not routinely incorporated int...
Benthic biogeochemical cycling, nutrient stoichiometry, and carbon and nitrogen mass balances in a eutrophic freshwater bay
Benthic biogeochemical cycling nutrient stoichiometry
2014/4/18
Green Bay, while representing only ,7% of the surface area and ,1.4% of the volume of Lake Michigan,
contains one-third of the watershed of the lake, and receives approximately one-third of the total...
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...
The effect of hydrodynamics on the mass transfer of dissolved inorganic carbon to the freshwater macrophyte Vallisneria americana
hydrodynamics dissolved inorganic carbon
2014/5/5
The combined effects of water velocity (U) and dissolved inorganic carbon (DIC) concentration on
photosynthesis rates of Vallisneria americana were investigated. The net photosynthesis rate or O2 flu...
Nutrient and light availability regulate the relative contribution of autotrophs and heterotrophs to respiration in freshwater pelagic ecosystems
Nutrient light availability regulate the relative contribution
2014/4/23
In this study, two main hypotheses were addressed. (1) Bacteria contribute proportionally less than autotrophs to
ecosystem respiration as trophic status increases. This hypothesis was examined in a ...
A comparative population genetic study on calanoid freshwater copepods: Investigation of isolation-by-distance in two Eudiaptomus species with a different potential for dispersal
A comparative population genetic study calanoid freshwater copepods
2014/4/23
We examined patterns of genetic isolation-by-distance in two sister species of freshwater copepods, Eudiaptomus
graciloides and Eudiaptomus gracilis, using the polymorphism of microsatellite markers....
Nitrogen processing in a tidal freshwater marsh: A whole-ecosystem 15 N labeling study
Nitrogen processing tidal freshwater marsh
2014/5/13
We quantified the fate and transport of watershed-derived ammonium in a tidal freshwater marsh fringing the nutrientrich Scheldt River in a whole-ecosystem 15
N labeling experiment.
15
N-NH w...
Exchange between a freshwater embayment and a large lake through a long, shallow channel
a freshwater embayment a large lake shallow channel
2014/5/8
We analyze the exchange between a weakly forced lacustrine embayment and a large lake through a long, shallow channel. Exchange in the channel is the result of a multiple and subtle balance in which s...
Mechanisms, effects, and scales of dispersal in freshwater zooplankton
Mechanisms effects freshwater zooplankton
2014/5/16
The distribution of organisms can be regulated by local environmental factors and regional processes such as
dispersal. Here, we review recent work on the role of dispersal for generating population ...
Surface avoidance by freshwater zooplankton: Field evidence on the role of ultraviolet radiation
Surface avoidance freshwater zooplankton
2014/5/14
The avoidance of surface waters by crustacean zooplankton is a common phenomenon both in marine and
freshwaters. The contemporary paradigm interprets such behavior as an antipredator strategy. Howeve...
Transport of dissolved inorganic carbon from a tidal freshwater marsh to the York River estuary
dissolved inorganic carbon freshwater marsh
2014/5/20
The cycling of dissolved inorganic carbon (DIC) and the role of tidal marshes in estuarine DIC dynamics were
studied in a Virginia tidal freshwater marsh and adjacent estuary. DIC was measured over d...
Genetic changes within freshwater bryozoan populations suggest temporal gene flow from statoblast banks
populations suggest temporal gene fl ow statoblast banks
2014/6/9
Temporal changes in the genetic structure of populations of the freshwater bryozoan Cristatella mucedo were
investigated by genotyping colonies at five microsatellite loci. Colonies were collec...