搜索结果: 31-45 共查到“知识库 海洋科学”相关记录8818条 . 查询时间(2.64 秒)
REFINE OF REGIONAL OCEAN TIDE MODEL USING GPS DATA
GPS Ocean Tide Model Time Series Spectral Inversion PPP
2018/5/15
Due to lack of regional data constraints, all global ocean tide models are not accuracy enough in offshore areas around China, also the displacements predicted by different models are not consistency....
MEASURING SURFACE DEFORMATION IN GLACIER RETREATED AREAS BASED ON PS-INSAR – GELADANDONG GLACIER AS A CASE STUDY
China Glacier retreat InSAR Paraglacial Slope Failure (PSF) Qinghai-Tibetan Plateau (QTP)
2018/5/15
Glaciers are retreating in many parts of the world as a result of global warming. Many researchers consider Qinghai-Tibetan Plateau as a reference for climate change by measuring glaciers retreat on t...
AUTOMATED MOSAICKING OF GEOSTATIONARY OCEAN COLOR IMAGER BY COMBINATION OF SPATIAL AND FREQUENCY MATCHING
GOCI Ocean Image Mosaicking Geometric Correction Frequency Matching
2018/6/4
In general, image mosaicking is a useful and important processing for handling images with narrow field of view. It is being used widely for images from commercial cameras as well as from aerial and s...
MONITORING EROSION AND ACCRETION SITUATION IN THE COASTAL ZONE AT KIEN GIANG PROVINCE
erosion/accretion Kien Giang province Normalized Difference Water Index (NDWI) shoreline
2018/4/18
Kien Giang is one of the coastal provinces in the Mekong Delta which is facing the problem of coastal erosion to affect people’s life in the coastal area. This project aims to monitor shoreline and to...
RECENT SEA LEVEL CHANGES IN THE BLACK SEA FROM SATELLITE GRAVITY AND ALTIMETER MESUREMENTS
Black Sea Sea Level Change Altimetry GRACE
2018/4/18
Sea level rise causes devastating effects on coastal habitats. For example, coastal erosion and saltwater intrusion are major threats for the Black Sea coasts. So, determining sea level changes in the...
POSSIBILITIES OF THE JOINT USE OF OPTICAL AND RADAR DATA IN FLOOD SPACE MONITORING
Remote Sensing Space Monitoring High Waters Flood Radar Data Radar Polarimetry
2018/4/18
The article gives a brief description of the system of space monitoring of high water and floods. Its main tasks are the operational dynamics of snow and ice cover melting and the passage of flood wat...
RECENT SEA LEVEL CHANGES IN THE BLACK SEA FROM SATELLITE GRAVITY AND ALTIMETER MESUREMENTS
Black Sea Sea Level Change Altimetry GRACE
2018/5/8
Sea level rise causes devastating effects on coastal habitats. For example, coastal erosion and saltwater intrusion are major threats for the Black Sea coasts. So, determining sea level changes in the...
Genesis of structural features of humic acids from the sediments of a high productive coastal zone
humic acids Chakara (Mudbank) CP/MAS 13C NMR lignin moietiesar Basin
2017/4/11
Chemical and physical properties of humic acids (HAs) isolated from Mudbanks (locally known as “Chakara”—a
unique phenomenon occurring along the south west coast of India during the southwest monsoon...
南海仲裁裁决之法律谬误分析——历史性权利与岩礁认定
南海仲裁 历史性权利 岩礁 海洋法公约
2019/3/19
南海仲裁裁决错误解释《联合国海洋法公约》与历史性权利的关系,在岩礁认定方面也存在诸多法律谬误。第一,历史性权利源于国际习惯法,不应根据《公约》的规定来解读和切割。南海仲裁裁决依据《公约》否定中国在南海主张的历史性权利,适用法律错误。第二,南海仲裁裁决认为中国在南海主张的历史性权利否定了菲律宾享有专属经济区的权利。这客观上涉及中菲海洋划界问题。依据《公约》第298条,仲裁法庭对海洋划界争端不具有管辖...
海洋条件下U型管内倒流特征压降数值模拟
海洋条件 U型管 倒流 特征压降
2016/12/16
自然循环工况下立式倒U型管蒸汽发生器内单相流体存在倒流现象,增大了自然循环流动阻力,减少了有效换热面积,对核动力装置的安全运行造成不利影响。针对该问题,利用Fluent软件研究了海洋条件下U型管内倒流特征压降的变化规律。结果表明,横摇和起伏特征压降的周期与横摇和起伏运动的周期相同,而纵摇特征压降的变化周期为纵摇周期的一半。横摇和纵摇特征压降波动振幅随横摇和纵摇周期的减小而增大,随横摇和纵摇振幅的增...
针对苏门答腊岛西北海域大型海底滑坡,建立基于欧拉-欧拉多相流理论的滑坡模型,对滑坡体动态运动过程开展模拟反分析。通过与BING程序和解析模型结果对比,考虑土体分段软化后的多相流模型能够较好的重现该滑坡体的运动过程,能获得与实际海底滑坡相近的沉积形态和滑动距离。分析结果表明滑动首先从坡角较大处开始,并逐渐推动中、前部坡度较小处土体滑动;滑坡体整体启动后沿斜坡逐渐加速,当滑动至斜坡底部时端部峰值速度达...
Estimation of methanogenesis by quantification of coenzyme F430 in marine sediments
methane hydrate methanogens function-specific compound analysis marine sedimen
2017/4/10
Coenzyme F430 is the hydrocorphinoid nickel complex which acts as active site in methyl-coenzyme M reductase
(MCR). The MCR-F430 complex catalyzes the last step of methanogenesis: reduction of methyl...
Origin of Earth’s oceans: An assessment of the total amount, history and supply of water
origin of water age of oceans water in Earth planet formation snow line
2017/4/10
The presence of water on Earth has played important roles in shaping the solid regions of the planet as well as in the
origin and evolution of life. This paper addresses three fundamental aspects of ...
三峡水库蓄水后,库区众多支流下游形成库湾回水区,这些库湾回水区是库区水环境调整最为活跃的地区. 为了探究支流库湾对于库区生源要素循环及物质通量的作用和意义,于2012年8月~2013年7月对草堂河库湾、相邻干流、支流上游水体中溶解态无机氮(DIN)、溶解态无机磷(DIP)、溶解态硅酸盐(DSi)的时空分布进行逐月现场观测. 结果表明,草堂河库湾回水区营养盐的浓度与库区干流相近,二者的月变化趋势也高...
Spatial Planning in Coastal Regions:Facing the Impact of Climate Change
Spatial Planning Coastal Regions Climate Change
2016/1/22
This publication aim at satisfying the core objectives of the Working Group 8.4, bringing together technical issues and problem solving to aid land professionals both practitioners and academics. Ital...