期刊,极地科学进展(英文版) 2022年卷3期_国家学术搜索

期刊信息/Journal information

极地科学进展(英文版)

中国极地研究中心,国家海洋局极地考察办公室 (Polar Research Institute of China, Chinese Arctic and Antarctic Administration)

主办单位：中国极地研究中心,国家海洋局极地考察办公室 (Polar Research Institute of China, Chinese Arctic and Antarctic Administration)

主　　编：刘瑞源

出版周期：双月刊

国际刊号：1674-9928

电子邮箱：mre-edoffice@aip.org

电　　话：0816-2483833

邮政编码：621999

地　　址：四川绵阳绵山路64号

极地科学进展(英文版)/Journal Advances in Polar ScienceCSCDCSTPCD北大核心

查看更多>>是中国工程物理研究院的第一本专业性英文学术期刊，主要报道极端条件下物质和辐射研究领域的理论、实验与应用研究的重要成果和最新进展。2016年创刊，2018年被Scopus和ESCI数据库收录，2019年被SCI收录。

正式出版

收录年代

Some thoughts on the development of polar microbial resources

WANG Nengfei

201-203页

原文链接:

国家科技期刊平台
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NSTL
万方数据
维普

Meteorological and sea ice anomalies in the western Arctic Ocean during the 2018–2019 ice season: a Lagrangian study

LEI RuiboZHANG FanyiZHAI Mengxi

204-219页

查看更多>>摘要：Rapid changes in the Arctic climate and those in Arctic sea ice in recent decades are closely coupled. In this study, we used atmospheric reanalysis data and satellite remote sensing products to identify anomalies of meteorological and sea ice conditions during the ice season of 2018–2019 relative to climatological means using a Lagrangian methodology. We obtained the anomalies along the drifting trajectories of eight sea ice mass balance buoys between the marginal ice zone and the pack ice zone in the western Arctic Ocean (～160°W–170°W and 79°N–85°N) from September 2018 to August 2019. The temporary collapse of the Beaufort High and a strong positive Arctic Dipole in the winter of 2018–2019 drove the three buoys in the north to drift gradually northeastward and merge into the Transpolar Drift Stream. The most prominent positive temperature anomalies in 2018–2019 along the buoy trajectories relative to 1979–2019 climatology occurred in autumn, early winter, and April, and were concentrated in the southern part of the study area; these anomalies can be partly related to the seasonal and spatial patterns of heat release from the Arctic ice-ocean system to the atmosphere. In the southern part of the study area and in autumn, the sea ice concentration in 2018–2019 was higher than that averaged over the past 10 years. However, we found no ice concentration anomalies for other regions or seasons. The sea ice thickness in the freezing season and the snow depth by the end of the winter of 2018–2019 can also be considered as normal. Although the wind speed in 2018–2019 was slightly lower than that in 1979–2019, the speed of sea ice drift and its ratio to wind speed were significantly higher than the climatology. In 2019, the sea ice surface began to melt at the end of June, which was close to the 1988–2019 climatology. However, spatial variations in the onsets of surface melt in 2019 differed from the climatology, and can be explained by the prevalence of a high-pressure system in the south of the Beaufort Sea in June 2019. In addition to seasonal variations, the meteorological and sea ice anomalies were influenced by spatial variations. By the end of summer 2019, the buoys had drifted to the west of the Canadian Arctic Archipelago, where the ice conditions was heavier than those at the buoy locations in early September 2018. The meteorological and sea ice anomalies identified in this study lay the foundations for subsequent analyses and simulations of sea ice mass balance based on the buoy data.

原文链接:

国家科技期刊平台
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万方数据

Evaluation of Arctic sea ice simulation of CMIP6 models from China

LI JiaqiWANG XiaochunWANG ZiqiZHAO Liqing...

220-234页

查看更多>>摘要：Nine coupled climate models from China participating in the Coupled Model Intercomparison Project Phase 6 (CMIP6) were evaluated in terms of their capability in ensemble historical Arctic sea ice simulation in the context of 56 CMIP6 models. We evaluated these nine models using satellite observations from 1980 to 2014. This evaluation was conducted comprehensively using 12 metrics covering different aspects of the seasonal cycle and long-term trend of sea ice extent (SIE) and sea ice concentration (SIC). The nine Chinese models tended to overestimate SIE, especially in March, and underestimate its long-term decline trend. There was less spread in model skill in reproducing the spatial pattern of March SIC than in reproducing the spatial pattern of September SIC. The error of March SIC simulation was distributed at the margins of sea ice cover, such as in the Nordic Seas, the Barents Sea, the Labrador Sea, the Bering Sea, and the Sea of Okhotsk. However, the error of September SIC was distributed both at the margins of sea ice cover and in the central part of the Arctic Basin. Five of these nine models had capabilities comparable with the majority of the CMIP6 models in reproducing the seasonal cycle and long-term trend of Arctic sea ice.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据
维普

Concentration maxima of methane in the bottom waters over the Chukchi Sea shelf: implication of its biogenic source

LI YuhongZHANG JiexiaYE WangwangJIN Haiyan...

235-243页

查看更多>>摘要：Knowledge about the distribution of CH4 remains insufficient due to the scarcity of data in the Arctic shelves. We conducted shipboard observations over the Chukchi Sea shelf (CSS) in the western Arctic Ocean in September 2012 to obtain the distribution and source characteristics of dissolved CH4 in seawater. The oceanographic data indicated that a salinity gradient generated a pronounced pycnocline at depths of 20–30 m. The vertical diffusion of biogenic elements was restricted, and these elements were trapped in the bottom waters. Furthermore, high CH4 concentrations were measured below the pycnocline, and low CH4 concentrations were observed in the surface waters. The maximum concentrations of nutrients simultaneously occurred in the dense and cold bottom waters, and significant correlations were observed between CH4 and 23SiO -, 34PO -, 2NO-, and 4NH+(p< 0.01, n= 44). These results suggest that the production of CH4 in the CSS has a similar trend as that of nutrient regeneration and is probably associated with the degradation of organic matter. The high primary productivity and high concentration of organic matter support the formation of biogenic CH4 in the CSS and the subsequent release of CH4 to the water column.

原文链接:

国家科技期刊平台
NETL
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万方数据

Spatial variability of δ18O and δ2H in North Pacific and Arctic Oceans surface seawater

LI ZhiqiangDING MinghuWANG YetangDU Zhiheng...

244-252页

查看更多>>摘要：This study presents new observations of stable isotopic composition (δ18O, δ2H and deuterium excess) in surface waters of the North Pacific and Arctic Oceans that were collected during the sixth Chinese National Arctic Research Expedition (CHINARE) from mid-summer to early autumn 2014. Seawater δ18O and δ2H decrease with increasing latitudes from 39°N to 75°N, likely a result of spatial variability in evaporation/precipitation processes. This explanation is further confirmed by comparing the δ18O–δ2H relationship of seawater with that of precipitation. However, effects of freshwater inputs on seawater stable isotopic composition are also identified at 30°N–39°N. Furthermore, we find a non-significant relationship between the isotopic parameters (δ2H and δ18O) and salinity from 73°N northwards in the Arctic Ocean, implying that sea ice melting/formation may have some effect. These results suggest that the isotopic parameters δ2H and δ18O are useful for tracing marine hydrological processes.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据

Variability of size-fractionated chlorophyll a in the high-latitude Arctic Ocean in summer 2020

CAI TingHAO QiangBAI YouchengLAN Musheng...

253-266页

查看更多>>摘要：The size structure of phytoplankton has considerable effects on the energy flow and nutrient cycling in the marine ecosystem, and thus is important to marine food web and biological pump. However, its dynamics in the high-latitude Arctic Ocean, particularly ice-covered areas, remain poorly understood. We investigated size-fractionated chlorophyll a (Chl a) and related environmental parameters in the highly ice-covered Arctic Ocean during the summer of 2020, and analyzed the relationship between Chl a distribution and water mass through cluster analysis. Results showed that inorganic nutrients were typically depleted in the upper layer of the Canada Basin region, and that phytoplankton biomass was extremely low (mean= 0.05 ± 0.18 mg·m−3) in the near-surface layer (upper 25 m). More than 80％ of Chl a values were <0.1 mg·m−3 in the water column (0–200 m), but high values appeared at the ice edge or in corresponding ice areas on the shelf. Additionally, the mean contribution of both nanoplankton (2–20 μm) (41％) and picoplankton (<2 μm) (40％) was significantly higher than that of microplankton (20–200 μm) (19％). Notably, the typical subsurface chlorophyll maximum (0.1 mg·m−3) was found north of 80°N, where the concentration of sea ice reached approximately 100％. The Chl a profile results showed that the deep chlorophyll maximum of total-, micro-, nano-, and picoplankton was located at depth of 40, 39, 41, and 38 m, respectively, indicating that nutrients are the primary factor limiting phytoplankton growth in the ice-covered Arctic Ocean during summer. These phenomena suggest that, despite the previous literatures pointing to significant light limitation under the Arctic ice, the primary limiting factor for phytoplankton in summer is still nutrient.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据
维普

Dissolved nutrient distributions in the Antarctic Cosmonaut Sea in austral summer 2021

HUANG WenhaoYANG XufengZHAO JunLI Dong...

267-290页

查看更多>>摘要：Dissolved nutrients are essential to marine productivity and ecosystem structures in the Southern Ocean. The spatial distributions of dissolved nutrients in the Cosmonaut Sea were studied during the 37th Chinese National Antarctic Research Expedition in 2021. The relative standard deviations of the nitrate (NO3-N), nitrite (NO2-N), ammonium (NH4-N), phosphate (PO4-P), and silicate (SiO3-Si) concentrations found in duplicate samples (n=2) were 1.01％, 9.04％, 6.45％, 0.94％, and 0.67％, respectively. The mean NO3-N, NO2-N, NH4-N, PO4-P, and SiO3-Si concentrations in the mixed layer were 26.41±4.13, 0.15±0.09, 0.51±0.22, 1.73±0.23, and 41.48±6.94 μmol·L−1, respectively, and were higher than the relevant limitation concentrations. The concentrations were generally bounded horizontally by the Southern Boundary (SB) of the Antarctic Circumpolar Current, the NO3-N, NO2-N, NH4-N, and PO4-P concentrations being higher northeast than southwest of the SB but the SiO3-Si concentrations being higher southwest than northeast, indicating that the SB dominates nutrient distributions in the mixed layer. The NO3-N, NH4-N, and PO4-P concentrations gradually increased moving vertically down from the mixed layer to 200 m deep and then remained at 33.73±3.51, 0.26±0.13, and 2.28±0.10 μmol·L−1, respectively, to the bottom. The SiO3-Si concentration increased as depth increased and reached a maximum in the bottom layer. The NO2-N concentration decreased rapidly as depth increased and was ～0 μmol·L−1 at >150 m deep. Circumpolar Deep Water upwelling may cause high nutrient concentrations in shallower layers up to the 100 m layer between 62.5°S and 64°S.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据
维普

Population size and distribution of seabirds in the Cosmonaut Sea, Southern Ocean

LIN ZixuanLIU MeijunYAN DenghuiGAO Kai...

291-298页

查看更多>>摘要：The Cosmonaut Sea is one of the less studied ecosystems in the Southern Hemisphere. Unlike other seas which were near to coastal regions, however, few studies exist on the top predators in this zone. From December 2019 to January 2020, a survey of seabirds was carried out on the board icebreaker R/V Xuelong 2 in the Cosmonaut Sea and the Cooperation Sea. Twenty-three bird species were recorded. Antarctic petrel (Thalassoica antarctica), Antarctic prion (Pachyptila desolata), and Arctic tern (Sterna paradisaea) were the most abundant species. A total of about 37500 birds belonging to 23 species were recorded. Around 23％ of the region had no record of birds. A large number of birds was recorded in 39°E–40°E, 44°E–46°E and 59°E–60°E. Many areas, such as 33°E–35°E, 39°E–41°E, 44°E–46°E and 59°E–60°E show a great richness. More than two-thirds of seabirds (71％) were observed in the zone near the ocean front. The prediction of the distributions of the most dominant species Antarctic petrel also showed that the area near the ocean front region had an important ecological significance for seabirds. The results suggest that the distribution of seabirds in the Cosmonaut Sea is highly heterogenous.

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据

Information for authors

后插1页

原文链接:

国家科技期刊平台
NETL
NSTL
万方数据
维普