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    Comprehensive model uses airborne LiDAR data to predict walking travel times with unprecedented accuracy

    Lurker
    By Lurker,
    You're a hotshot working to contain a wildfire. The conflagration jumps the fire line, forcing your crew to flee using pre-determined escape routes. At the start of the day, the crew boss estimated how long it should take to get to the safety zone. With the flames at your back, you check your watch and hope they were right. Firefighters mostly rely on life-long experience and ground-level information to choose evacuation routes, with little support from digital mapping or aerial data. The t

    U.S. GPS modernization faces delays, technical challenges: GAO report

    Lurker
    By Lurker,
    A new U.S. government report highlights mixed progress in the modernization of the Global Positioning System (GPS), citing advancements in satellite and ground equipment upgrades alongside persistent delays in some areas. The Government Accountability Office (GAO) report, released Sept. 9, reveals that the Space Force is grappling with technical hurdles in next-generation GPS satellites and ground systems. These challenges have eroded schedule margins, potentially pushing back the delivery

    OneWeb launches alternative navigation service amid GPS vulnerability concerns

    Lurker
    By Lurker,
    Satellite communications company OneWeb unveiled a new positioning, navigation, and timing (PNT) service amid global concerns about GPS vulnerability to jamming and interference in critical sectors such as defense, aviation and emergency services. The service, called Astra, aims to ensure uninterrupted communications for OneWeb’s satellite broadband customers, even when GPS or other global navigation satellite system (GNSS) signals are unavailable or compromised.  The system utilizes a

    Idrisi Terrset to Terrset liberaGIS

    barronqj
    By barronqj,
    Dear TerrSet/IDRISI Community,    We are writing to share important and exciting news: Effective December 2, 2024, a new open access version of TerrSet/IDRISI will be released. Made possible by Clark Lab's merger with the new Clark Center for Geospatial Analytics (Clark CGA), the new version will be free to all users. This is the realization of a 37-year dream – to make the software accessible to everyone, everywhere.     Between now and December 2, a series of progressive d

    The Importance of Building a GIS Portfolio: A Guide for Students and Young Professionals

    Lurker
    By Lurker,
    The Role of a GIS Portfolio: More Than Just a Resume A resume provides a snapshot of your education, skills, and experience, but a GIS portfolio offers a deeper dive into what you can actually do. It's the difference between telling and showing. While a resume might list "proficiency in ArcGIS" as a skill, a portfolio can demonstrate this proficiency through detailed examples of projects you've completed, maps you've created, and problems you've solved using GIS technology. Your GIS po

Portal by DevFuse · Based on IP.Board Portal by IPS
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    • i just check with website downtime checker, and the sites has been down for couple days, just wait till its up,   
    • Does anyone know whats going on with Lavteam? I have not been able to access the site for two days now.
    • NASA and the Italian Space Agency made history on March 3 when the Lunar GNSS Receiver Experiment (LuGRE) became the first technology demonstration to acquire and track Earth-based navigation signals on the Moon’s surface.   The LuGRE payload’s success in lunar orbit and on the surface indicates that signals from the GNSS (Global Navigation Satellite System) can be received and tracked at the Moon. These results mean NASA’s Artemis missions, or other exploration missions, could benefit from these signals to accurately and autonomously determine their position, velocity, and time. This represents a steppingstone to advanced navigation systems and services for the Moon and Mars.   “On Earth we can use GNSS signals to navigate in everything from smartphones to airplanes,” said Kevin Coggins, deputy associate administrator for NASA’s SCaN (Space Communications and Navigation) Program. “Now, LuGRE shows us that we can successfully acquire and track GNSS signals at the Moon. This is a very exciting discovery for lunar navigation, and we hope to leverage this capability for future missions.”   The road to the historic milestone began on March 2 when the Firefly Aerospace’s Blue Ghost lunar lander touched down on the Moon and delivered LuGRE, one of 10 NASA payloads intended to advance lunar science. Soon after landing, LuGRE payload operators at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, began conducting their first science operation on the lunar surface. With the receiver data flowing in, anticipation mounted. Could a Moon-based mission acquire and track signals from two GNSS constellations, GPS and Galileo, and use those signals for navigation on the lunar surface?    Then, at 2 a.m. EST on March 3, it was official: LuGRE acquired and tracked signals on the lunar surface for the first time ever and achieved a navigation fix — approximately 225,000 miles away from Earth.   Now that Blue Ghost is on the Moon, the mission will operate for 14 days providing NASA and the Italian Space Agency the opportunity to collect data in a near-continuous mode, leading to additional GNSS milestones. In addition to this record-setting achievement, LuGRE is the first Italian Space Agency developed hardware on the Moon, a milestone for the organization.   The LuGRE payload also broke GNSS records on its journey to the Moon. On Jan. 21, LuGRE surpassed the highest altitude GNSS signal acquisition ever recorded at 209,900 miles from Earth, a record formerly held by NASA’s Magnetospheric Multiscale Mission. Its altitude record continued to climb as LuGRE reached lunar orbit on Feb. 20 — 243,000 miles from Earth. This means that missions in cislunar space, the area of space between Earth and the Moon, could also rely on GNSS signals for navigation fixes.   source: NASA
    • Dear, could someone share again the link to download this soft please. best regards,
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