搜索结果: 16-30 共查到“海洋科学 Sea ice”相关记录55条 . 查询时间(0.093 秒)
Identifying variable sea ice carbon contributions to the Arctic ecosystem: A case study using highly branched isoprenoid lipid biomarkers in Cumberland Sound ringed seals
Sea ice carbon The arctic ecosystem
2014/10/16
We analyzed liver samples from 322 ringed seals (Pusa hispida) collected from Cumberland Sound (southeast
Baffin Island) to test our ability to differentiate between carbon sources in near apex preda...
Biological- and physical-induced oxygen dynamics in melting sea ice of the Fram Strait
Biological- and physical-induced oxygen dynamics melting sea ice Fram Strait
2014/7/10
We investigated the production, consumption, and exchange of O2 in melting sea ice to assess the biological- and physical-induced O2 turnover. The underside of the ice was covered with 5–20 cm3 large,...
Feeding and overwintering of Antarctic krill across its major habitats: The role of sea ice cover, water depth, and phytoplankton abundance
Antarctic krill Feeding water depth
2014/4/2
Antarctic krill (Euphausia superba) were sampled in contrasting habitats: a seasonally ice-covered deep ocean
(Lazarev Sea), ice-free shelves at their northern range (South Georgia) and the Antarctic...
On the existence of stable seasonally varying Arctic sea ice
existence stable seasonally varying Arctic sea ice
2012/2/28
Within the framework lower order thermodynamic theories for the climatic evolution of Arctic sea ice we isolate the conditions required for the existence of stable seasonally-varying ice states. This ...
Rapid photoprotection in sea-ice diatoms from the East Antarctic pack ice
Rapid photoprotection sea-ice diatoms the East Antarctic pack ice
2014/4/17
Photoinhibition and D1 protein re-synthesis were investigated in bottom-dwelling sea-ice microalgal communities from the East Antarctic pack ice during early spring. Bottom-dwelling sea-ice microalgal...
Comparison of zooplankton vertical migration in an ice-free and a seasonally ice-covered Arctic fjord: An insight into the influence of sea ice cover on zooplankton behavior
zooplankton vertical migration sea ice
2014/4/16
We present observations of zooplankton diel vertical migration (DVM) over a period of 2 yr in an ice-free and
a seasonally ice-covered Arctic fjord. The contrasting environments permitted assessment ...
Contribution of mycosporine-like amino acids and colored dissolved and particulate matter to sea ice optical properties and ultraviolet attenuation
amino acids colored dissolved
2014/4/16
In the Baltic Sea ice, the spectral absorption coefficients for particulate matter (PM) were about two times
higher at ultraviolet wavelengths than at photosynthetically available radiation (PAR) wav...
Morphology of a Baltic Sea Ice Pressure Ridge.
Connecting recruitment of Antarctic krill and sea ice
Connecting recruitment Antarctic krill sea ice
2014/4/18
We develop an age-structured model for two krill populations near the Antarctic Peninsula and estimate the relative recruitment events that reproduce observed trends in krill abundance and age structu...
We develop an age-structured model for two krill populations near the Antarctic Peninsula and estimate the
relative recruitment events that reproduce observed trends in krill abundance and age struct...
A three-dimensional thermodynamical model of sea ice has been developed which is capable of simulating seasonal changes over the arctic and antarctic regions. The model is patterned after the earlier ...
A Model for the Thermodynamic Growth of Sea Ice in Numerical Investigations of Climate
Thermodynamic Growth Numerical Investigations of Climate Sea Ice
2009/3/7
A model is presented whereby the thickness and extent of sea ice may be predicted in climate simulations. A basic one-dimensional diffusion process is taken to act in the ice, with modifications due t...
Stochastic Dynamic Analysis of Polar Sea Ice Variability
Polar Sea Ice Variability Stochastic Dynamic Analysis
2009/2/19
The analysis of Arctic (1966–76) and Antarctic (1973–79) sea ice data is presented, and a dynamical model based on white noise atmospheric forcing, local stabilizing relaxation and lateral diffusion a...
A General Circulation Experiment with a Coupled Atmosphere, Ocean and Sea Ice Model
general circulation model National Center for Atmospheric Research
2009/2/19
This paper describes the construction and results of a comprehensive, three-dimensional general circulation model (GCM) of the earth's climate. The model, developed at the National Center for Atmosphe...
The Horizontal Coherency of the Motion of Summer Arctic Sea Ice
Horizontal Coherency Summer Arctic Sea Ice
2009/2/18
Four ice floes in the permanent arctic ice pack were instrumented during the summer of 1975. Spectral and cross-spectral analysis of the complex time series of the ice motion and of the surface winds ...