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| 1 | 2011年3月日本福岛核电站核泄漏在海洋中的传输显示文摘使用全球版本的迈阿密等密度海洋环流模式对2011年3月日本福岛核电站泄漏在海洋中的传输以及扩散进行了数值模拟。数值模式中核废料(示踪物)排放情景采取等通量连续排放,排放时间从3月25日开始,分别持续20d以及1a,两种情形分别积分20a。为了减少海洋环流年际变化带来的数值模拟的的不确定性,20a的模式积分分别用2010年、1991—2011年、1971—1991年以及1951—1971年4个不同时段的NCEP/NCAR逐日再分析资料作为大气强迫场,因此每种排放情形包含4个数值试验。模拟结果的分析表明,不同核废料排放情景及其在不同时段大气资料对海洋模式的驱动下,模拟的示踪物总体的传输扩散路径(包括表层以及次表层)、传输速率以及垂直扩展的范围没有显著的差异。集合平均数值模拟的结果显示:在两种排放情景下,日本福岛核泄漏在海洋的传输路径受北太平洋副热带涡旋洋流系统主导,其传输路径首先主要向东,到达东太平洋后,再向南向西扩散至西太平洋,可能在10~15a左右影响到我国东部沿海海域,且海洋次表层的传输信号比表层信号早5a左右。通过进一步分析模式积分过程中最大示踪物浓度随时间变化发现,在积分第20a(2031年3月),海洋表层和次表层浓度的最高值分别只有模式积分第一年浓度的0.1%和1%。在积分的20a里,排放的核废料主要滞留在北太平洋海域(超过86%±1.5%的核废料在积分结束时,滞留在北太平洋),而在积分的前10a(2021年之前),几乎所有的核废料滞留在北太平洋;在核废料的垂直分布上,主要集中在海洋表层至600m的深度,在积分的20a时间里,没有核废料信号扩散至1 000m以下的深度。数值模拟的结果也表明核废料浓度减弱的强度以及演变的时间特征主要受洋流系统的影响,与排放源的排放时间长短关系不大。值得指出的是,更加准确地评估一个真实的核泄漏事故对海洋环境所造成的可能影响,还需要考虑大气中的放射性物质的沉降以及海洋生态对核物质的响应。 | 何晏春 郜永祺 王会军 JOHANNESSEN M Ola 于雷 | 2012 | 海洋学报2012，34，4： | 11 |
| 2 | Changes in fish diversity and community structure in the central and southern Yellow Sea from 2003 to 2015显示文摘The central and southern Yellow Sea is an important overwintering ground for many fish species in the Bohai Sea and Yellow Sea. For better understanding the status of the fish community after years of heavy exploitation, variations in fish community structure and diversity were analyzed using data from bottom trawls during 2003–2015. Five fish assemblage indices all showed fluctuations without clear trends from 2003 to 2015, yet there were strong positive and significant correlations(P < 0.05) among them. The top-five dominant species accounted for a high weight percentage(49.7%–82.1%) in the annual fish catch. Multivariate analysis showed that two year groups could be pooled for the fish community: Group Ⅰ consisted of the years 2006, 2007, 2008 and 2015, while Group Ⅱ consisted of the years 2003, 2004, 2005, 2009, 2010 and 2014; the groups aggregated with 63.71% similarity, indicating a high level of similarity among all years. The multivariate dispersion values were 1.455 and 0.818 for Groups Ⅰ and Ⅱ, respectively, indicating greater variances in fish assemblage structure in Group Ⅰ than that in Group Ⅱ. Similarity of percentage analysis demonstrated that the average similarities for Group Ⅰ and Group Ⅱ were 71.58% and 67.51%, respectively. Size-spectra analysis revealed no consistent trend in the intercept and slope( P > 0.05); there were also no significant differences between the slope of the size-spectra and fishing ef fort. The catch per unit ef fort and mean individual weight analyses of the whole fish assemblage both showed a significantly decreasing trend over time. Overall, the results showed that the fish community structure in the central and southern Yellow Sea was relatively stable from 2003 to 2015 and the study could be used as a reference for supporting ecosystem-based fishery management. | 陈云龙 单秀娟 金显仕 JOHANNESSEN Arne 杨涛 戴芳群 | 2018 | Journal of Oceanology and Limnology2018，36，3： | 5 |
| 3 | Mapping sea surface velocities in the Changjiang coastal zone with advanced synthetic aperture radar显示文摘Range Doppler velocities derived from the Envisat advanced synthetic aperture radar(ASAR) wide swath images are analyzed and assessed against the numerically simulated surface current fields derived from the finite volume coastal ocean model(FVCOM) for the Changjiang Estuary. Comparisons with the FVCOM simulations show that the European Space Agency(ESA) Envisat ASAR based Doppler shift anomaly retrievals have the capability to capture quantitative information of the surface currents in the Changjiang Estuary. The uncertainty analysis of the ASAR range Doppler velocity estimates are discussed with regard to the azimuthal and range bias corrections, radar incidence angles, inaccuracy in the wind field corrections and the presence of rain cells.The corrected range Doppler velocities for the Changjiang Estuary area are highly valuable as they exhibit quantitative expressions related to the multiscale upper layer dynamics and surface current variability around the East China Sea, including the Changjiang Estuary. | WANG Lihua ZHOU Yunxuan GE Jianzhong JOHANNESSEN Johnny A. SHEN Fang | 2014 | Acta Oceanologica Sinica2014，33，11： | 5 |
| 4 | The Mesozoic of Western Scandinavia and East Greenland显示文摘 | Arvid NФttvedt Erik P. Johannessen Finn Surlyk | 2008 | Episodes2008，31，1： | 3 |
| 5 | Decreasing Arctic Sea Ice Mirrors Increasing CO_2 on Decadal Time Scale显示文摘Arctic sea ice is a keystone indicator of greenhouse-gas induced global climate change, which is expected to be amplified in the Arctic. Here we directly compare observed variations in arctic sea-ice extent and CO 2 since the beginning of the 20th century, identifying a strengthening linkage, such that in recent decades the rate of sea-ice decrease mirrors the increase in CO 2 , with r ~ -0.95 over the last four decades, thereby indicating that 90% (r 2 ~ 0.90) of the decreasing sea-ice extent is empirically 'accounted for' by the increasing CO 2 in the atmosphere. The author presents an empirical relation between annual sea-ice extent and global atmospheric CO 2 concentrations, in which sea-ice reductions are linearly, inversely proportional to the magnitude of increase of CO 2 over the last few decades. This approximates sea-ice changes during the most recent four decades, with a proportionality constant of 0.030 million km 2 per ppmv CO 2 . When applied to future emission scenarios of the Intergovernmental Panel on Climate Change (IPCC), this relationship results in substantially faster ice decreases up to 2050 than predicted by IPCC models. However, departures from this projection may arise from non-linear feedback effects and/or temporary natural variations on interannual timescales, such as the record minimum of sea-ice extent observed in September 2007. | Ola M Johannessen | 2008 | Atmospheric and Oceanic Science Letters2008，1，1： | 2 |
| 6 | Human cord blood-derived cells can differentiate into hepatocytes in the mouse liver with no evidence of cellular fusion显示文摘 | Philip N Newsome Ingolfur Johannessen Shelagh Boyle Evangelos Dalakas Karen A Mcaulay Kay Samuel Frances Rae Lesley Forrester Marc L Turner Peter C Hayes David J Harrison Wendy A Bickmore John N Plevris | 2003 | Gastroenterology2003，，7： | 2 |
| 7 | 计算机断层扫描测定肺气肿程度可预测吸烟患者的病死率显示文摘背景和目的:虽然肺功能测定对于慢性阻塞性肺疾病(简称慢阻肺)的诊断和分级十分重要,但却不能反映慢阻肺的全貌。胸部CT可较好地显示慢阻肺患者的病理解剖学变化(如肺气肿和气道病变),但对其预后价值却知之甚少。本研究假设肺气肿程度及气管壁厚度可预测吸烟慢阻肺患者的病死率,并对此进行验证。 | Johannessen A Skorge TD Bottai M 牟向东 黄俊芳 | 2013 | 中华结核和呼吸杂志2013，36，6： | 2 |
| 8 | Wintertime Cyclone Activity and Its Relation to Precipitation over China显示文摘The authors examined the variability in wintertime cyclone activity and storm tracks and their relation to precipitation over China for the period 1951–2006 using the observational data.Two apparent modes of variability were assumed for the cyclone activity and storm tracks.The first mode describes the oscillation in the strength of the storm tracks in East Asia,which significantly increased since the mid-1980s,whereas the second mode describes a seesaw oscillation in the storm track strength between the Central-Southeast China and northern East Asia.The storm tracks over the Central-Southeast China have increased since the late 1960s.The possible causes for the variation of the cyclone activity and storm tracks are also explored.It is shown that wintertime precipitation,which has increased since the mid-1980s,concentrates in Central-Southeast China.The enhancement may be caused by the first mode of variability of storm tracks,whereas the interannual variability of precipitation may be linked to the second mode of the storm track variability. | CHEN Lei TAN Ben-Kui Nils Gunnar KVAMSTΦ Ola M. JOHANNESSEN | 2013 | Atmospheric and Oceanic Science Letters2013，6，5： | 2 |
| 9 | Assessment of human disc degeneration and proteoglycan content using Tlrho weighted magnetic resonanceimaging显示文摘 | Johannessen W AuerbachJD Wheaton AJ etal | 2006 | Spine2006，31，11： | 1 |
| 10 | In vivo quantification of human lumbar disc degeneration using T(1rho) -weighted magnetic resonance imaging显示文摘 | Auerbach JD Johannessen W Borthakur A | 2006 | Eur Spine J2006，15，3： | 1 |
| 11 | Enhanced oil recovery(EOR)by combining surfactant with low salinity injection显示文摘 | Annette Meland Johannessen Kristine Spildo | 2013 | Energy Fuels2013，27，： | 1 |
| 12 | Increased risk for pulmonary embolism in patients with bipolar disorder 显示文摘 | Strudsholm U Johannessen L Foldager L | 2005 | Bipolar Disord2005，7，1： | 1 |
| 13 | Therapeutic drug monitoring of the new erantiepileptic drugs显示文摘 | Johannessen S T Battino D Berry D J | 2003 | Ther Drug monit2003，25，3： | 1 |
| 14 | Gender differences in COPD: are women more susceptible to smoking effects than men? 显示文摘 | Sorheim IC Johannessen A Gulsvik A | 2010 | Thorax2010，65，6： | 1 |
| 15 | Aspects of innovation theory based on knowledge management 显示文摘 | Jon-Arid Johannessen Bjom Olsen | 1999 | International Journal of In- formation Management1999，，4： | 1 |
| 16 | A study of Cu/ZnO/Al2O3 methanol catalysts prepared by flame combustion synthesis显示文摘 | Jensen J R Johannessen T Wodel S | 2003 | Journal of catalysis2003，218，： | 1 |
| 17 | Decline of factor Ⅷ and factor Ⅸ inhibitors during long-term treatment with NovoSeven 显示文摘 | Johannessen M Andreasen RB Nordfang O | 2000 | Blood Coagul Fibrinolysis2000，11，： | 1 |
| 18 | Mechanisms of action of valproate: acommentatory 显示文摘 | Johannessen CU | 2000 | Neurochem Int2000，37，23： | 1 |
| 19 | Muhisite phosphorylation of the cAMP response element-binding protein (CREB) by a diversity of protein kinases显示文摘 | Johannessen M Moens U | 2007 | Front Biosci2007，12，5： | 1 |
| 20 | Nasal packing and nocturnal oxygen desaturation显示文摘 | Johannessen N Jensen P F Kristensen S | 1992 | Acta Otolaryngol Suppl1992，122，492： | 1 |
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