搜索结果: 136-150 共查到“知识库 物理海洋学”相关记录186条 . 查询时间(0.794 秒)
Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter
Absorption spectral slopes slope ratios indicators of molecular weight source photo bleaching chromo phoric dissolved organic matter
2014/4/21
A new approach for parameterizing dissolved organic matter (DOM) ultraviolet-visible absorption spectra is presented. Two distinct spectral slope regions (275–295 nm and 350–400 nm) within log-transfo...
Ice–ocean turbulent exchange in the Arctic summer measured by an autonomous underwater vehicle
Ice–ocean turbulent exchange Arctic summer measured
2014/4/18
The first-ever observed horizontal profiles of summertime ice–ocean boundary layer fluxes were obtained using
vertical water velocity, temperature, and salinity collected by an Autonomous Underwater ...
D/H ratios of fatty acids from marine particulate organic matter in the California Borderland Basins
fatty acid particulate organic matte California Borderland Basins
2014/4/8
We report the molecular and hydrogen–isotopic compositions of fatty acids extracted from suspended particulate
organic matter (POM) and surface sediments at three stations off the southern Cali...
Analyzing the safety of removal sequences for piles of an offshore jacket platform
jacket platform removal safety analysis stress
2011/9/13
An inevitable consequence of the development of the offshore petroleum industry is the eventual obsolescence of large offshore structures. Proper methods for removal of decommissioned offshore platfor...
Using the surface panel method to predict the steady performance of ducted propellers
surface panel method ducted propeller velocity potential iteration steady hydrodynamic performance
2011/9/13
A new numerical method was developed for predicting the steady hydrodynamic performance of ducted propellers. A potential based surface panel method was applied both to the duct and the propeller, and...
Optical effect on the nitracline in a coastal upwelling area
Optical nitracline coastal upwelling area
2014/4/22
The transport of nitrate into the euphotic zone is an important regulator of primary production. This transport is facilitated by physical processes that involve the depth and the steepness of the nit...
Biogeochemical composition of natural sea ice brines from the Weddell Sea during early austral summer
natural sea ice brines Biogeochemical composition
2014/4/22
Sea ice brines were collected from a single floe composed of different ice types in the western Weddell Sea in
December 2004. The chemical composition of the brines (temperature: 23.4uC to 22.1uC; sa...
Sources and sinks of methane in Lake Baikal: A synthesis of measurements and modeling
Lake Baikal measurements modeling
2014/4/22
We studied the methane (CH4) budget of Lake Baikal, the most voluminous lake in the world and the only
freshwater body with known occurrences of methane hydrates in the sediments. CH4 concentrations ...
Initial conditions mediate the interaction between Daphnia and bloom-forming cyanobacteria
Initial conditions mediate Daphnia bloom-forming cyanobacteria
2014/4/22
To assess whether Daphnia populations in eutrophic lakes can increase when bloom-forming cyanobacteria
dominate the phytoplankton assemblage and whether such an increase can result in strong suppress...
Variations in the optical properties of terrigenous mineral-rich particulate matter suspended in seawater
Variations in the optical properties terrigenous mineral-rich particulate matter suspended in seawater
2014/4/21
From laboratory measurements, we determined the spectral mass-specific absorption, ap*(λ), and scattering, bp*(λ, coefficients for terrigenous mineral-rich particulate assemblages suspended in seawate...
Distribution of the thiols glutathione and 3-mercaptopropionic acid in Connecticut lakes
Distribution of the thiols glutathione -mercaptopropionic acid
2014/5/5
The spatiotemporal chemical characteristics of the water column in Linsley Pond, a freshwater lake in
Connecticut, were studied from just before its stratification in April through the fall turnover ...
Molecular analysis of picocyanobacterial community structure along an Arabian Sea transect reveals distinct spatial separation of lineages
picocyanobacterial community structure lineages
2014/5/5
We investigated the community structure of Synechococcus and Prochlorococcus along a transect in the
Arabian Sea during September 2001. The transect spanned contrasting oceanic conditions, allowing i...
Molecular analysis of photosynthetic picoeukaryote community structure along an Arabian Sea transect
Molecular Arabian Sea transect
2014/5/5
We developed oligonucleotide probes, based on plastid 16S ribosomal DNA (rDNA) sequences, to target 10
different algal classes (Chlorarachniophyceae, Chrysophyceae, Cryptophyceae, Eustigmatophyceae, ...
Plankton food web structure in a eutrophic polymictic lake with a history of toxic cyanobacterial blooms
Plankton food web structure polymictic lake
2014/4/30
We studied the seasonal dynamics of phytoplankton, bacterioplankton, heterotrophic nanoflagellates, ciliates, and
metazoan plankton in the highly eutrophic polymictic Lake Kastoria (Greece), wh...
Responses of estuarine and coastal marine phytoplankton to nitrogen and phosphorus enrichment
estuarine coastal marine phytoplankton
2014/4/30
A cross-ecosystem comparison of data obtained from 92 coastal zone ecosystems worldwide revealed a strong
positive response of marine phytoplankton biomass to nutrient enrichment that is highly consi...