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  • 河北十一选5开奖结果: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.

  • 宝贝是地名,你能想到这么浪漫的地名在哪儿吗? 2019-11-03
  • 岳云鹏跟陈赫学打嗝 网友调侃:你教他说相声啊 2019-11-03
  • 高息债台倒塌致败局 资本猎手颜静刚丢了宏达矿业 2019-11-02
  • 成都寻旧文章中国国家地理网 2019-11-02
  • 第九届全球健康促进大会 2019-11-02
  • 孟铎合同到期即将离队 离加盟广东宏远只差官宣 2019-10-31
  • 香港推进“青年宿舍计划”(观香港) 2019-10-25
  • 马克思主义哲学是帮助我们看清世界的一双“慧眼” 2019-10-24
  • 望远镜的眼睛有多大?这个参数很关键 2019-10-24
  • 重磅!6月20日起 湖南启动省级环保督察 2019-10-19
  • 西安一男子伙同他人制假 将工业醋酸变身食用醋 2019-10-19
  • 合肥庐阳18小区将现“十八变” 4254户居民将受益 2019-10-16
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