Baseline and Environmental Monitoring in deep water - a new approach

作者: Arne Myhrvold , Martin Hovland , Sam-Arne Nøland

DOI: 10.2118/86776-MS

关键词: Current (stream)HydrologyBenthic zoneEnvironmental monitoringEnvironmental scienceErosionEnvironmental resource managementReplicateBox corerSedimentBaseline (configuration management)

摘要: The offshore oil and gas industry in Norway is obliged to establish a firm publicly accepted baseline regarding environmental parameters new areas of activity. These studies include an examination the sediments identify background level physical, chemical biological parameters. monitoring stations survey are typically located at fixed distances along “cross”, where longest axis downstream main current, several replicate samples collected each station (OSPAR recommendations Norwegian HSE regulations). design programme quite rigid, does not take into account knowledge sediment characteristics area, like whether it soft or hard, erosion, accumulation etc. It well established that one most important both possibility accumulate contaminants, structuring benthic community. characteristic therefore parameter, which should be taken consideration during planning programme. By doing this possible get more cost effective comprehensive results. This relevant for shallow as deep water. present paper will outline how first attempt was made incorporate characteristics, integrate from various disciplines involved i.e. geologists working on Holocene sediments, oceanographers biologists. situated block 6405/7 continental shelf, with water depth approx. 1200 m. Input data came geological interpretation gravity corer, seismic multi-beam echo-sounder, video footage ROV, box corer biology.

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