Tag: International Marine Contractors Association

  • Seen & Heard: Space Force recruits with GPS

    Seen & Heard: Space Force recruits with GPS

    “Seen & Heard” is a monthly feature of GPS World magazine, traveling the world to capture interesting and unusual news stories involving the GNSS/PNT industry.


    Photo: nattrass/iStock/Getty Images Plus
    Photo: nattrass/iStock/Getty Images Plus

    SMARTWATCH REVEALS RUNNER’S FATE

    On the morning of July 10, Berkeley resident Philip Kreycik went for a run in Pleasanton, California. That day, temperatures reached 106 degrees, and he didn’t return home. His body was found Aug. 3, reports the San Francisco Chronicle. His Suunto smartwatch stopped tracking movement 4.5 hours after he started his run. GPS data from the watch showed him moving in erratic zigzags and circles before he stopped. Experts concluded he experienced delirium before succumbing to heat exhaustion.


    Photo: SOPHIE-CARON/iStock Unreleased/Getty Images
    Photo: SOPHIE-CARON/iStock Unreleased/Getty Images

    GANGS TARGET FARM DEVICES

    Organized gangs riding e-scooters are stealing high-value GPS/GNSS technology from farms in the United Kingdom, reports BBC News. Insurer NFU Mutual said the cost of replacing the stolen equipment nearly doubled in a year to £2.9 million. The technology, in worldwide demand, has become the “rural thieves’ top target,” the insurer said. GPS/GNSS equipment on tractors can cost up to £10,000 per unit.


    SPACE FORCE RECRUITS WITH GPS

    A 13-minute recruitment commercial from the U.S. Space Force debuted Aug. 24, with GPS as a star. “There’s no such thing as a day without space operations. You just don’t see them,” explains the video, mentioning how GPS is key to the operation of ATMs, cell phones, gas pumps, traffic lights, power grids, guided missiles and more. The commercial states that the Space Force is seeking guardians who will help protect satellites from attack and debris. Current guardians describe the importance of GPS. “We won’t just think outside the box, we’ll think outside the atmosphere, in one of the most challenging environments ever known,” concludes the video. “The sky is not the limit.”


    THIEVES STEAL TRACKERS AND… (GUESS THE REST)

    Two burglars who stole a package from a drop-off box were quickly apprehended — the package was filled with Roambee GPS-based trackers heading to a COVID-19 vaccine maker for use in tracking shipments. The Santa Clara Police Department was ecstatic to learn what the thieves had stolen, reports Roambee, who knew the package had gone missing. Unaware of what was in their trunk, the thieves traveled more than 761 miles around the Bay Area before being arrested 14 days later on July 18.

  • IMCA publishes guidelines on use of GNSS for tide calculations

    Nick Hough, IMCA
    Nick Hough, IMCA

    The International Marine Contractors Association (IMCA) has published “Guidelines on the use of GNSS for tide calculations” (IMCA S 027). It provides an overview of how GNSS can assist in more accurate real-time direct measurement of tidal changes. IMCA S 027 is available for members to download free of charge, and costs £50 for non-members.

    IMCA S 027 includes sections on

    • tide theory
    • geodetic reference systems and tidal datums
    • tides from GNSS
    • quality assurance and quality control
    • glossary, references and a list of further reading

    One reference is the recently revised IMCA S 015, “Guidelines for GNSS positioning in the Oil and Gas industry,” produced with the International Association of Oil and Gas Producers.

    “As with horizontal positioning, vertical positioning is referenced to specified datums,” explained Nick Hough, IMCA’s technical adviser for Offshore Survey. “Unlike land surveying, where vertical measurements (elevations) are made from and to a known, fixed position, vertical measurements offshore (depths) are taken against a moving dynamic surface.”

    “All absolute depths recorded from survey activities need to be adjusted for tide and reduced to a known constant vertical datum such as Mean Sea Level (MSL) or Lowest Astronomical Tide (LAT),” Hough said. “The effect of tides will result in depth differences at different times of the day, and at the same times on different days.”

    “Advances in GNSS technology enable accurate and consistent calculation of height above a known datum, which means reliance on tide gauges or tide prediction tables is no longer necessary,” Hough said.