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71.
72.
近几十年来,全球的海洋健康状况明显下降。为了防止、减缓和扭转未来海洋健康和功能的恶化趋势,联合国启动了海洋科学促进可持续发展十年(2021—2030年)(简称“海洋十年”)规划,以整合全球海洋相关领域的资源与力量,科学地保护海洋并实现海洋资源的可持续开发和利用。联合国“海洋十年”规划为海洋领域的科学家、政策制定者、私营部门、非政府组织和地方群体更加高效、合理地共同保护和开发海洋资源提供了一个广阔平台,也为中国实现海洋强国战略、发展海洋科技带来了机遇与挑战。本研究通过梳理联合国“海洋十年”规划的发展过程和已批准的行动与活动,结合文献信息分析,深度解析了“海洋十年”规划的发展和实施动态,探讨了“海洋十年”规划的热点研究主题。自2020年9月,联合国正式发布“海洋十年”规划以来,共有来自60个国家的409项行动获得“海洋十年”的批准,其中包括47项计划、277个项目和85项捐助,研究热点主要是海洋政策制定与海洋管理、海洋生态系统健康和海洋生物多样性等。在此基础上,本文从“海洋十年”活动的实施与协调、能力建设、资金支持、人才培养和宣传推广的角度,进一步提出了促进我国全面参与“海洋十年”规划实施... 相似文献
73.
ImODUcrIONTheIndo-PadricregionbeweenMindanao,NewGuinea,andtheIndonesianArchipelagoistheonlydeeppassagefromthePadricOceantotheIndiandrincyig.l),Fig.lMapoftheIndoThdficopon(Internalframeisthemodeldomain)andobendupper1aperimtSthereinsmrandhasareivedconsiderableattentionhauseofitSlocationbetweretheIn.TheIndonesianThappearstobepotentiallyboortantintheevoluhonsofthewesternboundaryatandthewarmpoolinthewesternPadric,andplaysacrudelroleinthehcatandsaltbalanceoftheworkl'soasnoprdon,l986).Nume… 相似文献
74.
INTRODUCTI()NThenorthwardflowingMUCbelowtheMCwasfotmdandnamedbyHuandCui(1989,l99l)usinghydrographicdataofOctoberofl987and1988gatheredddringtheChineseAcademyofSCiencesmtilti-institutionalpro~onAirSeaInteractionintheWesternTropicalPacificandIntemalCliInaeChange(CAS)-Recently,WangandHu(l997,hereinafer,wn)eednedtheMUCdrodricstmctUreusinghydrOgraPhicdataof1lcmisesconductedatnear8"NzonalsectionsbytheCASprograrnandthePRC-USJointProgramonAir-SeaInteractionintheWestemEqUatorialP… 相似文献
75.
正中国科学院海洋研究所成立于1950年8月1日,是我国第一个专门从事海洋科学研究的国立机构,是我国海洋科学的发源地。2020年,海洋研究所迎来70周年华诞。70年来,研究所从最初的中国科学院水生生物研究所青岛海洋生物研究室不断发展壮大,凭借雄厚的科研实力和一代代优秀的人才队伍,成长为我国目前规模最大、综合实力最强的综合性海洋科学研究机构之一。70年来,海洋研究所不断引领我国海洋科学的发展,在实验海洋生物学、海洋生态与环境科学、海洋环流与波动、海洋地质与环境、海洋环境腐蚀与生物污损、海洋生物分类与系统演化以及深海研究等方面做出了许多奠基性和开创性的贡献,取得1900余项科研成果,共发表论文14000余篇(其中SCI/EI收录论文6400余篇),出版专著近300部;授权专利1100余件;国家和省部级奖励278项。 相似文献
76.
Empirical Orthogonal Function (EOF) analysis is used in this study to generate main eigenvector fields of historical temperature
for the China Seas (here referring to Chinese marine territories) and adjacent waters from 1930 to 2002 (510 143 profiles).
A good temperature profile is reconstructed based on several subsurface in situ temperature observations and the thermocline was estimated using the model. The results show that: 1) For the study area,
the former four principal components can explain 95% of the overall variance, and the vertical distribution of temperature
is most stable using the in situ temperature observations near the surface. 2) The model verifications based on the observed CTD data from the East China
Sea (ECS), South China Sea (SCS) and the areas around Taiwan Island show that the reconstructed profiles have high correlation
with the observed ones with the confidence level >95%, especially to describe the characteristics of the thermocline well.
The average errors between the reconstructed and observed profiles in these three areas are 0.69°C, 0.52°C and 1.18°C respectively.
It also shows the model RMS error is less than or close to the climatological error. The statistical model can be used to
well estimate the temperature profile vertical structure. 3) Comparing the thermocline characteristics between the reconstructed
and observed profiles, the results in the ECS show that the average absolute errors are 1.5m, 1.4 m and 0.17°C/m, and the
average relative errors are 24.7%, 8.9% and 22.6% for the upper, lower thermocline boundaries and the gradient, respectively.
Although the relative errors are obvious, the absolute error is small. In the SCS, the average absolute errors are 4.1 m,
27.7 m and 0.007°C/m, and the average relative errors are 16.1%, 16.8% and 9.5% for the upper, lower thermocline boundaries
and the gradient, respectively. The average relative errors are all <20%. Although the average absolute error of the lower
thermocline boundary is considerable, but contrast to the spatial scale of average depth of the lower thermocline boundary
(165 m), the average relative error is small (16.8%). Therefore the model can be used to well estimate the thermocline.
Supported by the Knowledge Innovation Program of Chinese Academy of Sciences (No.KZCX-3W-222; KZCX2-YW-Q11-02) and National
Basic Research Program of China (No.2007CB411802; 2006CB403601) 相似文献
77.
<正>台湾暖流和长江冲淡水是东海西部环流的两个关键分量。台湾暖流起源于台湾海峡和黑潮,通常沿福建和浙江海岸向北流动(翁学传等,1984a;Su et al.,1987;Guan,1994)。与已形成于长江口外的长江冲淡水为特征的沿岸水相遇后,台湾暖流转向东北,甚至转向东(Hu,1994)。冬季,长江冲淡水在一个非常窄的范围内沿海岸线向南流动,但在江河径流 相似文献
78.
In this study,we investigate the decadal variability of subsurface ocean temperature anomaly(SOTA)in the tropical Pacific and associated anomalous atmospheric circulation over Asia-North Pacific-North America by analyzing 50 years of atmosphere-ocean data from the National Center for Environmental Prediction(NCEP)reanalysis project and Simple Ocean Data Assimilation(SODA).Relationship between the ENSO-Like variability and climate of China is also revealed.The results show that the decadal variability of tropical Pacific SOTA has two dominant ENSO-like modes:the primary mode is an ENSO-Like mature phase pattern,and the second mode is associated with the ENSO-like transition(developing or decaying)phase.These two modes consist of a cycle of ENSO-Like variability,which exhibits a quasi-40a fluctuation,superimposed with an oscillation of a 13a period.The ENSO-Like variability in the tropical Pacific influences the atmosphere system at the mid-and higher-latitudes and subtropical regions,resulting in decadal variability of south wind over North China,the East Asian monsoon and climate of China.During the mature phase of El Ni o-Like variability,the anomalous north wind prevails over the north part of China and the East Asian monsoon weakens,with little rain in North China but much rain in the middle-and lower-reaches of the Yangtze River.With El Ni o-Like decaying(La Ni a-Like developing),anomalous northerly wind also prevails over North China,then the East Asian monsoon weakens with drought occurring in North China.The situation during the La Ni a-Like variability is the opposite.The pattern of anomalous climate of China is primarily dominated by the first ENSO-like variability,while the second mode can modulate the contribution of the first one,depending on whether its phase agrees with that of the first mode.The climate shift in China around 1978 and successive occurrence of drought for more than 20 years in North China are primarily induced by the first two ENSO-like variabilities.The latest La Ni a-Like phase starts from 1998 and will presumably end around 2018.It is expected that more rainfall would be in North China and less rainfall would appear in the middle-and lower-reaches of the Yangtze River valley during this period. 相似文献
79.
80.
ＩＮＴＲＯＤＵＣＴＩＯＮＩｔｉｓｒｅｃｏｇｎｉｚｅｄｔｈａｔｔｈｅｒｅａｒｅｔｗｏｉｍｐｏｒｔａｎｔｐｒｏｃｅｓｓｅｓｔｈａｔａｆｆｅｃｔｔｈｅｍａｔｅｒｉａｌｆｌｕｘｅｓｉｎｔｈｅＥａｓｔＣｈｉｎａＳｅａ(ＥＣＳ):ｏｎｅｉｓｔｈｅｍａｔｅｒｉａｌｔｒａｎｓｐｏｒｔｐｒｏｃｅｓｓｅｓｒｅｌａｔｅｄｔｏｔｈｅｆｉｎｅｍａｔｅｒｉａｌ(ｍｏｄｅｒｎ)ｓｅｄｉｍｅｎｔａｔｔｈｅｃｅｎｔｅｒｏｆｔｈｅＥＣＳＣｏｌｄＥｄｄｙ,ａｎｄｔｈｅｏｔｈｅｒｉｓｔｈｅｓｕｓｐｅｎｄｅｄｍａｔｔｅｒ(ＳＭ)ｆｌｕｘｆｒｏｍ… 相似文献