Tag: Internet

  • USGS tool allows users to explore mountains worldwide

    The Global Mountain Explorer. (USGS)
    The Global Mountain Explorer. (USGS)

    A new tool that gives users a detailed view of the world’s mountains is now available from the U.S. Geological Survey (USGS).

    The Global Mountain Explorer can help users ranging from hikers to scientists, resource managers and policy makers seeking information on these prominent yet often understudied landscapes.

    Mountains occupy from 12 to 31 percent of the land surface of the Earth, but despite their importance, few attempts have been made to scientifically define and map these regions worldwide with detail, the USGS said.

    The Global Mountain Explorer “allows anyone with access to the Internet to explore where mountains are, whether they are low or high, scattered or continuous, snowy or snow-free,” said USGS ecosystems geographer Roger Sayre, who led the project.

    Mountain Explorer provides information from global scales down to specific mountains, such as Borah Peak, Idaho, pictured here. (Public domain)
    Mountain Explorer provides information from global scales down to specific mountains, such as Borah Peak, Idaho, pictured here. (Public domain)

    “Mountain Explorer users can visualize and compare in one place and for the first time the three major global mountain maps that have been produced,” he said.

    Mountains provide significant water, timber and mineral resources, and food, fiber and fuel products. They are home to diverse ecosystems and wildlife and are valued for their esthetic beauty and recreational offerings.

    Mountain areas are also prone to natural hazards. But despite their importance, surprisingly few attempts have been made to scientifically define and map these regions worldwide with detail.

    The USGS developed the Global Mountain Explorer, in partnership with Esri, and three organizations at the University of Bern in Switzerland — the Center for Development and Environment, the Global Mountain Biodiversity Assessment and the Mountain Research Initiative.

    Twilight image of snow-covered Mount Shasta with city lights visible at its base. The Global Mountain Explorer allows users to view mountains and surrounding terrain. (Public domain)
    Twilight image of snow-covered Mount Shasta with city lights visible at its base. The Global Mountain Explorer allows users to view mountains and surrounding terrain. (Public domain)

    The tool was developed as part of a Group on Earth Observations initiative to accurately delineate mountain regions using best available data. It is intended to provide information on the global distribution and a variety of mountain data with a resolution 16 times more detailed than previous mapping efforts.

    Users can select an area by zooming in or by typing a place name like Mt. Kilimanjaro to view its elevation and type. They can also select from a number of backdrops — satellite images, topographic maps or political boundary maps— on which to display the different types of mountain classes. A tutorial showing the full features for the Global Map Explorer is shown below.

  • DJI’s privacy mode enables flight without internet data transfer

    DJI has launched a new Local Data Mode that stops internet traffic to and from its DJI Pilot app, providing enhanced data privacy assurances for sensitive government and enterprise customers.

    Local Data Mode will be available in the next update on the DJI Pilot app on CrystalSky and for select Android tablets.

    When an operator activates Local Data Mode, the app will stop sending or receiving any data over the internet. This adds an additional layer of security for operators of flights involving critical infrastructure, governmental projects or other sensitive missions.

    “We are creating Local Data Mode to address the needs of our enterprise customers, including public and private organizations that are using DJI technology to perform sensitive operations around the world,” said Brendan Schulman, DJI’s vice p resident of policy and legal affairs. “DJI is committed to protecting the privacy of its customers’ photos, videos and flight logs. Local Data Mode will provide added assurances for customers with heightened data security needs.”

    Since Local Data Mode blocks all internet data, the DJI Pilot app will not be able to detect the location of the user or show map and geofencing information such as No Fly Zones and temporary flight restrictions, nor will it notify drone operators of firmware updates.

    Telemetry data on flight logs such as altitude, distance or speed will remain stored on the aircraft even if the user deactivates Local Data Mode.

    Whether Local Data Mode is activated or not, photos and videos captured by the user are always stored on the drone’s SD card and are only shared if the user chooses to upload them online to the SkyPixel community, social media or other websites.

    When using Local Data Mode, drone operators are reminded that they are solely responsible for the safety of their flight operation and that they understand that features that may enhance and support the safety of their operations, but that rely on internet connectivity, are no longer available.

    Drone operators can enable Local Data Mode by opening the DJI Pilot app, clicking on “Activate LDM Mode” and entering a password which will be required to deactivate Local Data Mode when they decide to go online again.

    New drones will still have to be activated first by logging into the user’s DJI account with an email and a password. To ensure the drone has the latest firmware, users can download and update it while they have internet connectivity before re-activating Local Data Mode.

    The Local Data Mode feature may not be available in locations where an internet connection is required or highly advisable due to local regulations.

  • Bathymetrics Data Portal delivers quality water-depth data online

    The Bathymetrics Data Portal allows users to search, purchase and automatically download water-depth information directly from an online store to their computer.

    The Bathymetrics Data Portal is a combined offering by DHI, experts in water environments; TCarta, a global provider of marine geospatial products; and powered by DigitalGlobe, provider of high-resolution satellite imagery.

    Example of 2m Bathymetry data available through The Bathymetrics Data Portal. (Image: © DHI, TCarta, DigitalGlobe)
    Example of 2m Bathymetry data available through The Bathymetrics Data Portal. (Image: © DHI, TCarta, DigitalGlobe)

    The dedicated commercial bathymetry portal offers continuously expanding 2m Bathymetry data in shallow water areas and a global database of interpolated 90m bathymetry. The portal allows users to search for data in their area of interest and purchase what they need. Data is priced by the square kilometer; the customer pays online with credit card and can download the data shortly after.

    “We are very excited about this launch, as we have made direct access to off-the-shelf bathymetry data very easy and intuitive,” said DHI COO, Jacob Høst-Madsen. “The shop marks an important milestone in our continued quest to develop and offer high quality, affordable bathymetry data”

    Bathymetric products are used extensively by organizations involved in energy infrastructure development, port construction, environmental monitoring, aquaculture planning and hydrodynamic modeling.

    “The per-kilometer pricing model puts high-quality bathymetric data within easy reach of organizations of any size in all industries,” said TCarta CEO David Critchley. “One-person engineering shops, academic entities and other organizations with limited budgets can now engage in complex offshore projects.”

    The portal is constantly being updated with new and improved data, providing users with the best available bathymetric information around the world.

  • Satlab Geosolutions’ RTK Handheld uses tablet or phone as display

    Satlab_SLC3Swedish-based survey and GIS equipment maker Satlab Geosolutions is offering a multi-purpose handheld that sends centimeter-level NMEA position data to the user’s tablet or smartphone.

    The SLC RTK handheld brings professional high-precision positioning in a new design concept with Bluetooth connectivity for Android, Windows and iOS Bluetooth low-energy (BLE) smart devices, according to the company.

    Alternatively, it can be used as a fixed sensor for any compatible NMEA driven positioning application.

    The design includes a mounting plate to attach the user’s tablet device so it acts as the SLC’s display. Connectivity also is available via a USB/RS232 port. With a built-in wireless modem and optional remote antenna and pole- or fixed-mount accessories, the SLC can be configured as a sensor for machine control or other mobile applications.

    SLC is flexible — it can be paired with data-collection software running on Windows, Android or iOS BLE with compatible applications. Its RTK positioning information can be used in numerous markets including land surveying, high-accuracy GIS, web-based facility management, utilities, pipelines, precise farming, hydrography, geophysics or aeronautics. With 32-GB internal memory, the SLC is also able to record RAW data to be used for post-processed applications.

    The SLC has a built-in lithium ion battery and GNSS antenna for up to 12 hours of portable operation. It includes a Telit 3.5G GSM modem for operation as an RTK base or rover, transmitting or receiving corrections from NTRIP networks or via Satlab’s free Internet RTK service. Satlab Internet RTK allows users to stream corrections via IP to any of three Satlab servers around the world; any Satlab rover device can then connect to that same IP connection to receive full GNSS constellation corrections.

    “Our new Scandinavian-designed SLC handheld is a different concept, offering RTK centimeter-level positioning at an incredible price in a flexible form factor,” commented Bjorn Agardh, CEO of Satlab. “With our simple SLC Toolbox software utility, users set up the SLC once, and it remains configured every time it’s used.”

    The SLC comes in two configurations: as a handheld in a soft case with two tablet/panel mounting plates and a charging USB cable; or bundled with external geodetic antenna, cable and pole mount.

  • June 30 Leap Second Worries Markets, Internet

    June 30 Leap Second Worries Markets, Internet

    London time - canon t2i
    (Photo credit: @Doug88888, used under CC BY-NC-SA 2.0 license.)

    The coming leap second on June 30 sounds as scary as the (turns out not-so-scary) Y2K bug. But the world has experienced leap second issues before, and most affected industries are taking steps to prepare.

    The world’s clocks will be adjusted by one second on June 30, when a leap second will be inserted into Coordinated Universal Time (UTC), the standard international time scale. In theory, all UTC clocks should insert a second labeled 23h 59m 60s (the leap second) following one labeled 23h 59m 59s UTC. This is equivalent to having all of the clocks in the world stop for one second at that time, as explained in May’s Expert Advice column.

    A problem with some GPS receivers implementing the extra second caused the U.S. Civil GPS Service Interface Committee (CGSIC) to issue a notice in February. But GPS receivers aren’t the only thing that could be affected.

    The Wall Street Journal is reporting that financial regulators and market participants are worried enough about the leap second that they’re planning for potential disruptions. The adjustment could present technical difficulties for traders and exchanges, as some computers might not be programmed to account for the adjustment, according to a Dow Jones report.

    “These guys are agonizing over it,” Steve Allen, a programmer-analyst at the University of California’s Lick Observatory, told Dow Jones. “It is definitely a hassle.”

    “The problem with the extra second is that it’s difficult to gauge how computer systems will react,” according to Journal writer Brian Hershberg.

    U.S. Commodity Futures Trading Commission spokeswoman said that “For the most part, we’re not too worried,” told Dow Jones. “But of course as the regulator, we do need to ensure folks are ready.”

    The last leap second occurred on June 30, 2012, and that leap second caused technical problems for websites and computing systems — including Reddit, Mozilla, Gawker, FourSquare, Yelp and LinkedIn.

    Google had prepared ahead of time and was unaffected. Google gradually adds a couple of milliseconds to its servers’ clocks throughout the day when a leap second is to occur. According to a 2011 Google blog, “We modified our internal NTP servers to gradually add a couple of milliseconds to every update, varying over a time window before the moment when the leap second actually happens. This meant that when it became time to add an extra second at midnight, our clocks had already taken this into account, by skewing the time over the course of the day.”

    But many web services didn’t follow Google’s lead in 2012 and experienced disruptions. Qantas‘ computer system went down for hours, forcing employees to check in passengers by hand. For background on the 2012 event, and a good explanation on the reason for a leap second, read “Time to Get in Sync” by Richard Langley, GPS World Innovation editor.

    Amazon Web Services said it plans to “implement alternative solutions to avoid the ‘:60’ leap second. This means that AWS clocks will be slightly different from the standard civil time for a short period of time.”

    In the U.S., stock exchanges such as the New York Stock Exchange and Nasdaq are working around the leap-second time (8 p.m. in the U.S.) by closing its after-hours trading a half-hour early, which is scheduled for 8 p.m.

    The Hong Kong Observatory is advising stakeholders and operators in information technology, telecommunication, transport, and finance to review whether systems under their management can handle leap seconds properly, and if necessary, consider testing and adjusting their systems to ensure normal operation during and after the introduction of the leap second.

    Time and frequency company EndRun Technologies is offering leap-second information on its website, and Cisco is offering its customers guidance on how to deal with it.

    Racelogicwho make the LabSat simulator, will be recording the Leap Second as it happens and will then have the scenarios available for customers to replay. A variety of recordings will be taken: GPS, GLONASS, and BeiDou constellations will each be captured as a single channel, and also as a simultaneous triple-constellation recording. These will then be available to use with the LabSat.

     

  • Out in Front: Uh-oh for Information

    Back around 1992, in the early days of the World Wide Web, a starry-eyed pundit trumpeted “The Internet will do for information what TV did for entertainment!”

    “Uh-oh for information,” riposted an editorial cartoonist at the time.

    To be sure, television since the 1950s has brought a few new high points of entertainment into homes around the world, as well as faster and farther-reaching news coverage. It has also brought widespread new lows, entire days’ and evenings’ worth of dumb-down, and news that is broad but shallow. In the process television birthed the terms “a vast wasteland” and “sound bite.”

    The Internet followed a similar path. As a consequence, more information is far more widely available. But is it any better, more reliable, more accurate, or conducive to better decisions? A strong argument can be made for the position that it is not; that, on the contrary, it is actually worse, or at the very least, less robust.
    At the same time that the Web began climbing into society’s lap, nevermore to budge, the cellular telephone attached

    itself to the human ear, not merely in the accustomed indoor stationary position but on the street, in the supermarket aisle, at the restaurant, behind the wheel. Now the smartphone has taken over that role and staked its ownership to the field of view as well, if not to total sensory consciousness.

    And what do you know? Along came GPS in the technological bargain. All apps, if not all things, become possible when you combine: Internet, mobile phone, and satellite-based positioning.

    From the interbreeding of these three springs the latest guest to the party: Big Data.

    What the heck is big data?

    “Data sets . . .  gathered by ubiquitous information-sensing mobile devices, aerial sensory technologies (remote sensing), software logs, cameras, microphones, radio-frequency identification readers, and wireless sensor networks. The world’s technological per-capita capacity to store information has roughly doubled every 40 months since the 1980s; as of 2012, every day 2.5 quintillion (2.5×1018) bytes of data were created.”

    I had to check Wikipedia (I know, I know, the prophet hoisted by his own petard) because I had only a vague sense of it myself.

    According to Adam Jacobs, writing in the ACMQueue of the Association for Computing Machinery, big data is so hefty that “[its] analysis requires massively parallel software running on tens, hundreds, or even thousands of servers.”

    Sounds like a job for Biggest Brother.

    Indeed, the government has stepped forward to shoulder the burden; we have only just learned that it did so some time ago. Now not only our phone calls but our locations, our travels, our appointments, can be well known to anyone behind the giant curtain who has a curiosity. If they feel bothered enough to get a warrant, warrants can be got. Cases on record show that the government has opened personal cell-phone records both with and without warrants.

    To rehearse the evident, those records now contain our location data. Breadcrumbs. The granularity, the precision, and the hertz-rate of that location data will only increase over time.

    This time around, the “uh oh” comes from the information.

    Uh oh for us.

  • Out in Front: Tech and Techer

    Can the development and use of smart technologies actually render us dumber? Have we already lost a mental step or two, as we equip ourselves fearlessly for the future?

    Marshall McLuhan, the “medium is the message” guy from back when, preached that tools numb whatever part of the body they amplify. By extrapolation, location-enabling tools render us less aware of our actual place.

    It causes me some discomfort to float this topic in the standard bearer for an extremely advanced high-tech industry. Yet I also felt acute and nearly continuous discomfort while reading a book over the winter holidays; a poke here, a prick there, until I was sitting on pins and needles. I had selected the volume with an eye to finding out why my adult and near-adult children, actively engaged online, have little patience with the printed page anymore, and find books practically abhorrent.

    Of course, every generation has its preferences, but this trend troubles me because it seems associated with a reluctance to truly explore, to think critically, at length, and in some depth. Also, it’s not limited to twentysomethings. I find plenty of affected folks at every age.

    booksThe book is The Shallows: What the Internet Is Doing to Our Brains, by Nicholas Carr. It provided grist galore in the online/print dichotomy — the changes in how we look for, absorb, process, and store information. And as said, it generated no little discomfort as I realized how much I, too, have changed in a decade and a half of increasing online activity, at work and in leisure.

    I began to wonder, as I read, where that other game-changing modern technology, global satellite navigation, enters the picture. Sure enough, it surfaced on page 212.

    A neuroscientist engaged in studying the brains of London taxi drivers found that their hippocampal area increased in gray matter volume because of the huge amount of street names and traffic-flow data they must memorize. She worries that when cabbies use GPS, that knowledge base will shrink, and possibly that area of the brain will atrophy or fail to develop.

    This is perhaps a trivial example that has little to do with you and me. But consider your experience and your awareness as you follow, head down, your PND or a cell-phone screen to your next destination. Do you register the environment en route, possibly including hazard factors? Do you notice other points of interest that might enrich your experience, occasion a stop, detour, or return trip — or even constitute a better destination? Once arrived, could you find your own way there again, or have you become dependent on silicon and signals?

    GNSS brings undeniable benefits in areas where it creates capabilities that did not exist before, such as measuring millimetric sway of tall buildings or changes in sea level; that is, largely in professional areas. But where it offers convenience or shortcuts in everyday life, that can be a more double-edged sword. The Internet has proved so; recall also canned, frozen, and processed pre-prepared foods, once embraced as modern timesavers. We now find they stripped essential nutrients out of our diet, undermining health and helping create an obesity epidemic.

    In some savage ironic twist, particularly since Carr has plenty to say about how Google contributes to the general online process of mental debilitation, the full 276-page text of The Shallows is currently available via Google Books.