加拿大海王星:科学、运行、管理     

王克林  Kate Moran 《地球科学进展》2013,28(5):521-528

加拿大海王星是世界最大的海底缆接科学观测网,于2009年开始运行.它连接了位于不同水深和不同海洋地质环境的大批观测仪器,把数据连续不断地通过互联网传给科学家和大众.海王星的建立是为了推动地震过程和大地构造、海底地下流体、海洋生物与气候变化、深海生态系统、工程和信息科学等五大科学命题的研究.为最大程度地推动国际合作,加速科学发展步伐,它的系统使用完全开放,数据全部免费公开,这在科学史上前所未见.这种全方位、全开放的复杂庞大的科研系统需要高超的管理方法和优良的学术环境.  相似文献   

Optimizing fixed observational assets in a coastal observatory     

Sergey Frolov  António Baptista  Michael Wilkin 《Continental Shelf Research》2008

Proliferation of coastal observatories necessitates an objective approach to managing of observational assets. In this article, we used our experience in the coastal observatory for the Columbia River estuary and plume to identify and address common problems in managing of fixed observational assets, such as salinity, temperature, and water level sensors attached to pilings and moorings. Specifically, we addressed the following problems: assessing the quality of an existing array, adding stations to an existing array, removing stations from an existing array, validating an array design, and targeting of an array toward data assimilation or monitoring.  相似文献   

基于PDA形变台站电子手簿系统的设计与开发   总被引：3，自引：0，他引：3  

蔡宗文  陈新泽  王志鹏  方伟 《华南地震》2005,25(3):57-63

由于PDA掌上电脑具有携带轻便、电池持久耐用,操作简单等特点,利于建立形变台站野外观测基本操作平台.按照有关规范及标准的要求,采用PDA硬件平台,在windowsCE软件支持下,利用Microsoft eMbedded Visual Basic编程环境,通过wince sdk工具模块,实现基于PDA的形变台站电子手簿系统（CaisBook PDA1.0）.采用电子数据防伪技术,建立了完善形变台站水准电子记簿软件,可代替手工记录.  相似文献   

RXTE ASM的双SSC联合直接解调成像   总被引：2，自引：0，他引：2  

陈勇  宋黎明  李惕碚  崔伟 《天文学报》2000,41(2):214-218

利用直接解调成像方法对ＲＸＴＥ ＡＳＭ两个指向相同的扫描阴影照像机（ＳＳＣ）的观测,数据进行了联合成像分析,对Ｃｒａｂ天区的研究结果表明,联合成像对源的分辨能力比单ＳＳＣ成像有进上步提高,并且还对银心附近含多个源的一个天区进行了联合成像,分别计算了成像所得的３个Ｘ射线源的强度和位置坐标,并利用源与源之间的位置关系对ＲＸＴＥＡＳＭ定位定标中可能存在的系统误差作出估计,发现以直接解调成像法所得强源的定  相似文献   

用于2.4m望远镜的网络气象站   总被引：1，自引：1，他引：0  

朱高锋  韦卡宁  范玉峰  许骏  秦伟 《天文研究与技术》2005,2(1):44-53

在进行天文观测时,天气因素的影响是很大的,为适应天文观测技术发展的要求,在2.4m镜附近需要建立一个网络气象站,一方面可以对天气状况实时监测,另一方面其他设备可以从网上查询并使用这些数据,以满足2.4m望远镜必须要有气象状况输入才能正常地在RoboticMode下工作的要求。文中介绍了1 wirenet气象站的原理以及软硬件设计。  相似文献   

Navigating through SPASE to heliospheric and magnetospheric data   总被引：1，自引：1，他引：0  

Jan Merka  Thomas W. Narock  Adam Szabo 《Earth Science Informatics》2008,1(1):35-42

Virtual observatories have been introduced by the astrophysics community as an environment connecting distributed data sources with a unified interface. The heliophysics community soon recognized that they faced a similar problem of many distributed data sets with varying amount of information about them and several discipline specific virtual observatories have been established. Two of them, the virtual heliospheric observatory (VHO) and the virtual magnetospheric observatory (VMO), share a common architecture design with development efforts oriented towards a structured data search. This paper describes the VHO/VMO middleware and its components from metadata preparation and processing to the user interface.  相似文献   

The architecture of a multi-tiered virtual observatory     

Todd King  Jan Merka  Raymond Walker  Steven Joy  Tom Narock 《Earth Science Informatics》2008,1(1):21-28

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流磁预报地震初探     

刘益乾  李金梅 《山西地震》1991,(4)

通过对晋、冀、蒙三省交界区长达11年的流动地磁资料的综合分析,以丰镇、大同-阳高地震为例,探讨了流磁资料预报地震的能力,震例表明震磁效应是明显的,认为以磁报震是一种有前途的方法。  相似文献   

Water and related chemistry in the solar system. A guaranteed time key programme for Herschel     

P. Hartogh  E. Lellouch  M. Banaszkiewicz  E.A. Bergin  N. Biver  M.I. Blecka  D. Bockelée-Morvan  J. Cernicharo  G. Davis  P. Encrenaz  A. González  T. de Graauw  D. Hutsemékers  E. Jehin  M. Kidger  A. de Lange  D.C. Lis  J. Manfroid  R. Moreno  G. Orton  M. Rengel  M. Sánchez-Portal  S. Sidher  B. Swinyard  N. Thomas  B. Vandenbussche  C. Waelkens 《Planetary and Space Science》2009,57(13):1596-1606

“Water and related chemistry in the Solar System” is a Herschel Space Observatory Guaranteed-Time Key Programme. This project, approved by the European Space Agency, aims at determining the distribution, the evolution and the origin of water in Mars, the outer planets, Titan, Enceladus and the comets. It addresses the broad topic of water and its isotopologues in planetary and cometary atmospheres. The nature of cometary activity and the thermodynamics of cometary comae will be investigated by studying water excitation in a sample of comets. The D/H ratio, the key parameter for constraining the origin and evolution of Solar System species, will be measured for the first time in a Jupiter-family comet. A comparison with existing and new measurements of D/H in Oort-cloud comets will constrain the composition of pre-solar cometary grains and possibly the dynamics of the protosolar nebula. New measurements of D/H in giant planets, similarly constraining the composition of proto-planetary ices, will be obtained. The D/H and other isotopic ratios, diagnostic of Mars’ atmosphere evolution, will be accurately measured in H₂O and CO. The role of water vapor in Mars’ atmospheric chemistry will be studied by monitoring vertical profiles of H₂O and HDO and by searching for several other species (and CO and H₂O isotopes). A detailed study of the source of water in the upper atmosphere of the Giant Planets and Titan will be performed. By monitoring the water abundance, vertical profile, and input fluxes in the various objects, and when possible with the help of mapping observations, we will discriminate between the possible sources of water in the outer planets (interplanetary dust particles, cometary impacts, and local sources). In addition to these inter-connected objectives, serendipitous searches will enhance our knowledge of the composition of planetary and cometary atmospheres.  相似文献   

Millimetron—a large Russian-European submillimeter space observatory     

《Experimental Astronomy》2009,23(1):221-244

Millimetron is a Russian-led 12 m diameter submillimeter and far-infrared space observatory which is included in the Space Plan of the Russian Federation for launch around 2017. With its large collecting area and state-of-the-art receivers, it will enable unique science and allow at least one order of magnitude improvement with respect to the Herschel Space Observatory. Millimetron will be operated in two basic observing modes: as a single-dish observatory, and as an element of a ground-space very long baseline interferometry (VLBI) system. As single-dish, angular resolutions on the order of 3 to 12 arc sec will be achieved and spectral resolutions of up to a million employing heterodyne techniques. As VLBI antenna, the chosen elliptical orbit will provide extremely large VLBI baselines (beyond 300,000 km) resulting in micro-arc second angular resolution.  相似文献