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  • 时时彩4星平刷绝不连挂:Bathymetry

    bathymetry_828x200 banner image

    Conduct preliminary reconnaissance of littoral zones to identify hazards and plan bathymetric surveys.

    • Assess shallow water environments
    • Identify and mitigate hazards
    • Reduce risk of accidents and delays
    • Low cost and non-invasive

    后一万能码 2期内中 www.qgqx.net We have extensive experience of bathymetric mapping using satellite imagery in shallow water areas. The results of our bathymetric mapping are valuable for planning offshore seismic surveys, selecting drilling locations and choosing sub-sea pipe line routes.

    In clear water areas, where the sea floor has homogeneous sand cover, a range of optical data including Landsat and some of the newer Very High Resolution (VHR) sensors are most suitable for this work. Our experience has covered areas in the Mediterranean, Red Sea, Arabian Gulf, Indian Ocean, Indonesian Archipelago and Caribbean. High resolution imagery can be particularly useful in detecting relatively small anomalies, which could prove to be submerged obstacles.

    In obscured areas, with cloudy water due to high sediment load, satellite radar imagery is used to assess the indirect effects of the seafloor observed on waveforms at the sea surface (under certain wind and wave conditions). This has the additional benefit that cloud cover does not affect radar imagery. Whilst it is not normally possible to produce absolute measurements with this technique, it can show relative bathymetric patterns, and these can be of particular interest over shallow sand banks and shoals where there are often frequent or continuous changes in the sea floor morphology.

    In both radar and optical work some form of calibration is required, and this generally takes the form of existing bathymetric maps. These are normally based on highly accurate sounding measurements, but obtained on a very sparse grid relative to the continuous sampling of the satellite systems. Thus there is often a considerable detail and resolution benefit in the satellite techniques, albeit that the optical methods are restricted to a depth penetration in optimal conditions of around 10 - 20 metres, and, at best, the radar methods only show relative sea bottom morphology.

    GeoConsulting - Satellite Mapping

    Satellite Mapping

    A world-leading supplier of satellite images, multi-client products and bespoke mapping services.

    GeoConsulting - Offshore Seeps

    Offshore Seeps

    Detection of active oil and gas seeps in frontier or under-explored basins to greatly reduce exploration risk
    GeoConsulting - Ice Monitoring

    Ice Monitoring

    All-weather satellite monitoring of ice extents and concentration within a few hours of image acquisition.

  • 太坏了!傅欢遇“断子绝孙腿” 这动作红牌都不冤 2019-04-17
  • 市民工地发现并机智"抢回" 4件圆明园流散文物终"回家" 2019-04-17
  • 世界杯成中国企业营销升级大战场 2019-04-15
  • 中东部地区将有强降雨 京津冀等地有轻至中度霾 2019-04-11
  • 郑永年:新时代的清醒判断 2019-04-11
  • 让协商民主优势得以充分发挥 2019-04-10
  • 网友给太原市市长留言获回复 共计11条 2019-04-09
  • 尧都区车站街建设社区老党员高德宏同志手抄“党章”庆党生 2019-04-09
  • 正心正念 爱国爱教 佛界楷模 2019-04-02
  • 防治土地荒漠化 新疆保护生态兼顾农民增收 2019-04-02
  • 许倬云作序《现代的历程》:现代人的天问 2019-03-31
  • 证监会:首发审核政策始终没有变化 2019-03-31
  • 2008年全球金融危机之后,为什么金融危机发源地的美国,欧债危机重灾区的欧洲各国股市连续7年走牛,屡创历史新高,唯经济最好的中国股市却连续7年熊冠全球?去年中国 2018-11-17
  • 完成自己的第一部电影, 她23岁就做到了 2018-11-17