搜索结果: 16-30 共查到“知识库 理学 Sea ice”相关记录69条 . 查询时间(0.182 秒)
Diatoms as Recorders of Sea Ice in the Bering and Chukchi Seas: Proxy Development and Application
Bering Sea Diatoms IP25 Marine Isotope Stage 11 Pacific Decadal Oscillation Sea Ice
2014/10/22
The recent, rapid decline in Arctic summer sea ice extent has prompted questions as to the rates and magnitude of previous sea ice decline and the affect of this physical change on icerelated ecosyste...
IP25: A Molecular Proxy of Sea-ice Duration in the Bering and Chukchi Seas
IP25 A Molecular Proxy Sea-ice Duration Bering Chukchi Seas
2014/10/21
Seasonal sea ice is an important component of the global climate system. Sea ice influences exchange rates of heat, moisture, and gas between the ocean and atmosphere. Sea ice also plays critical role...
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...
The effect of Arctic sea-ice extent on the absorbed（net）solar flux at the surface, based on ISCCP-D2 cloud data for 1983–2007
Arctic sea-ice absorbed solar flux ISCCP-D2 cloud data
2010/2/1
We estimate the effect of the Arctic sea ice on the absorbed (net) solar flux using a radiative transfer model. Ice and cloud input data to the model come from satellite observations, processed by the...
Optical Measurements of Sea Ice in the Gulf of Finland
Optical Measurements Sea Ice Gulf of Finland
2009/10/22
During the spring of 1998, measurements of total albedos, spectral albedos and
ice transparency were made on coastal fast ice in the Gulf of Finland, Baltic Sea,
to produce values for models, to com...
Morphology of a Baltic Sea Ice Pressure Ridge.
Shear Flow of Sea Ice in the Marginal Ice Zone with Collision Rheology
Flow of Sea Ice Marginal Ice Zone Collision Rheology.
2009/6/15
Shear Flow of Sea Ice in the Marginal Ice Zone with Collision Rheology.
On the Parametrization of Basal Heat Flux for Sea-ice Modelling
Arctic oceanography climate modelling climate change ice-ocean heat flux
2009/6/10
A sea-ice model is used to investigate the ice-ocean heat flux that occurs at the base of the ice. The source of this basal heat flux is supposed in reality to arise from physical processes (e.g. ocea...
Classification of Large-Scale Sea-Ice Structures Based on Remote Sensing Imagery
Sea ice fracture mechanics remote sensing deformation
2009/6/10
An analysis of satellite and aerial images of the sea-ice in the Baltic Sea was performed to trace mechanical phenomena. Characteristic structures of deformed thin-ice cover are described. Parallel fa...