The final point data from the PWCs are provided in a comma-separated text file and are projected in cartesian coordinates using the Washington State Plane South, meters coordinate system. The average estimated vertical uncertainty of the bathymetric measurements is 10 cm. Bathymetric data were merged with post-processed positioning data and spurious soundings were removed using a custom Graphical User Interface (GUI) programmed with the computer program MATLAB. Orthometric elevations relative to the NAVD88 vertical datum were computed using National Geodetic Survey Geoid12a offsets. Positioning data from the GNSS receivers were post-processed using Waypoint Grafnav to apply differential corrections from a GNSS base station with known horizontal and vertical coordinates relative to the North American Datum of 1983. Survey-grade positions of the PWCs were achieved with a single-base station and differential post-processing. Navigation information was displayed on a video monitor, allowing PWC operators to navigate along survey lines at speeds of 2 to 3 m/s. Founded in 1984, HYPACK, INC (formerly CoastalOceanographics, Inc.) has evolved from a small hydrographicconsultant to one of the most successful.
#Hypack 2014 download software
Step Two: Add ENC Charts: HYPACK automatically downloads any NOAA S-57 Charts or USACE IENC Charts. >Download HYPACK 2016 v16.0.1.0 圆4 Keygen Crack ScreenShots: Software Description: HYPACK A Xylem Brand and now part of YSIis a Windows based software for the Hydrographic and DredgingIndustry. This information is stored in the HYPACK 2014 folder. HYPACK downloads the latest chart catalogs over the internet from the NOAA and USACE map servers. Programme 2014 entitled Exploring new concepts for extracting energy. Output from the GNSS receivers and sonar systems were combined in real time on the PWC by a computer running HYPACK hydrographic survey software. Downloading the charts is a 2- step process. though a computer interface running hydrographic survey software (Hypack 2011. Positioning of the survey vessels was determined at 5 to 10 Hz using Trimble R7 GNSS receivers. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey.
These two track line plans, in conjunction.
The line plan consisted of two parts: (a) one with lines parallel to the shoreline with a spacing of 40 m (Figure 4b) and, when needed, (b) one with lines perpendicular to the shoreline with a spacing of 80 m. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. The design of the survey lines was conducted through the Hypack 2014 navigation software. The sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9 degree beam angle. One approach was use to analyze seabed type based on the value of. Level of intensity or backscatter informed through seabed type. Bathymetry data were collected using four personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. Backscatter value was a key to determine seabed characteristic. This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2014 (USGS Field Activity Number 2014-631-FA).
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