The presence of source and receiver ghost notches limit the useable bandwidth of marine towed-streamer data. In multisurvey processing, different acquisition configurations (i.e., variable source and receiver tow depths) can lead to variability in the notch period between the surveys. This complicates survey matching. Here we use source and receiver deghosting as part of a workflow to aid the matching of surveys with differing source and receiver tow depths. The data is from offshore Gabon.
Groundwater resources development and the threat of future drought in Garfield County, southwestern Utah, prompted a study of groundwater quality and quantity in the environs of Bryce Canyon National Park and Bryce Canyon City in Johns and Emery Valleys. Water quality, water quantity, and the potential for water-quality degradation are critical elements determining the extent and nature of future development in the valley. The community of Bryce Canyon City is an area of active tourism and, therefore, of potential increase in growth (likely from tourism-related development). Groundwater exists in Quaternary valley-fill and bedrock aquifers (the Tertiary Claron Formation and Cretaceous sandstone). Increased demand on drinking water warrants careful land-use planning and resource management to preserve surface and groundwater resources of Johns and Emery Valleys and surrounding areas that may be hydrologically connected to these valleys including Bryce Canyon National Park.
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