About | Contact | SUBMIT PRESS | Advertise | FAQ
Newsletters | Twitter |
HomeNewsArticlesExpertsDataJobsEDULBSEVENTSDIRBLOGSocialGeoJobs
Videos | Webinars | Social Media | Free Resources | iOS News | Android News | GISuser Newsletter  
advertisement

Top Geo News
Put Your News here! 
 


The Sub $150 Unlocked Android mini smartphone from Cedar Tree Technologies, the CMP1

Got news? TELL US...
submit press to GISuser

Social Connect




@GISuser

GISuser Sponsor


GISuser Videos


See also SpatialVideos Youtube

Recent Site Additions
GISuser Sponsor

GIS Job Opportunities
Geojobs.biz careers 

More at GeoJobs.BIZ!

GISuser Sponsor


Home     

TODAY IN THE GISuser SPOTLIGHT
Welcome to Spatial Media's GISuser.com A leading GIS, Geo-tech resource for GIS users & tech professionals. MUST See our iOS zone, Career Center, Social Media Tips, and ArticlesGet a Daily newsfeed via email

Cool Geo Technology - 10 Awesome Things seen at 2014 ESRIUC - Indeed there's no shortage of cool and amazing technology to touch, see, and hear about at ESRIUC, actually, its almost overwhelming so creating a list of just 10 awesome things I saw is no simple task. Hopefully I won't crush any feelings for those not mentioned here and just let it be known that this list could likely easily be rehashed into a "100 Cool things" list if I had the time! Note, be sure to see also, Images from the 2014 International Esri User Conference 

Yes indeed, you can now download Mars Geology data in SHP files - Yes indeed, you can now start mapping Mars as the USGS and NASA have made available (in SHP format) Mars geology, structures, landing sites and more - Twitter user Larry Buchanan @larrybuch has taken the data and dropped em into QGIS and created/shared a visualization - nice! 

Data Privacy and 8 simple tips to protecting your personal privacy online
Take a Journey With the Esri Story Map Journal App
Dive Into Python-Free 328 Page eBook

HOT JOB
post a GIS job * THE NEW GEOJOBS.BIZ!!! * 
See THOUSANDS of jobs on GeoJobs.Biz
MOST RECENT GIS / GEOSPATIAL NEWS and ANNOUNCEMENTS

 View More Geospatial News
 View LBS News
 View Mobile / Wireless News
 Submit Your Press & announcements

More GISuser Features

Feature - HP Adds to Large Format Plotting Portfolio With PageWide Technology - HP's new, Large Format Page-Wide Technology - designed to deliver wide format, high volume prints faster and cheaper than ever before!

FME Users Convene on Vancouver, BC for the International FME User Conference 

Blogging, microblogging, media, social media or… Which for your business? You may be wondering, which would be better for me or my business.. blogging, social bookmarking, a social media focus, or ?? 

10 Considerations For Planing Your Next Hackathon -- Hackathons, all the cool kids are doing them! Yes indeed, with the plethora of opendata being made available to the masses there’s no better way to get started than to hack.

Hands On First look - HP All in One Workstation - For the past few weeks I've been the user of a very sweet, and big, HP Z1 all in one workstation.  For those of you not yet familiar with the "all in one" devices from HP

Super Bowl Transit Perks! Brand New NYC Subway Maps For The Super Bowl - There's no doubt that New York and New Jersey will be seeing some awesome economic benefits and perks as a result of hosting the 2014 Super Bowl.  

Awesome Maps and Data Visualizations from 2013 - I'm not calling this a "best" list as that's pretty tough to call, however, it is a fine list of sweet maps and data visualizations that we enjoyed and shared with the community during the first half of 2013

NOAA Report - Sandy, One Year Later - It's been one year since Sandy struck the Mid-Atlantic and Northeast coasts with powerful winds, rain, and storm surges that caused unprecedented damages in some of the nation's most populous areas. Sandy was unique in many ways. 

Mashing-up Opendata for a B.C Liquor Outlet Map with CartoDB - All the twitter chatter from #FOSS4G and the hype surrounding CartoDB got me wanting to mashup some data with the awesome open Geo tools out there so I decided to go look for some data and see what I could come up with. 

Mapping The Craft Beer Industry in America - The New Yorker has complemented their coverage with the release of a cool, interactive craft beer map (based on 2012 data) so you can see where the growth has spread, which States are drinking up, where the new breweries are located, and see all the fine breweries on the map!

    feature articlesSee more GISuser Features HERE / See GISuser Spotlights Here

    The GISuser Expert Corner

    directoryicon.jpgThis is a section devoted to providing our valued contributors with a corner to do whatever they like with and discuss Geo/Tech topics that are near and dear to them! Be sure to check out ALL of our experts for commentary, editorial, links, and advice! Interested in becoming a contributing expert? Contact us and tell us about yourself

    International Space Station (ISS) Keeps Watch on World's Sea Traffic PDF Print E-mail
    GISuser Feature Articles - Remote Sensing , Earth Imaging
    Written by NASA   
    01 April 2012

    As the International Space Station circles Earth, it has been tracking individual ships crossing the seas beneath. An investigation hosted by the European Space Agency (ESA) in its Columbus module has been testing the viability of monitoring global maritime traffic from the station's orbit hundreds of miles (kilometers) above since June 2010. 


    The ship-detection system being tested is based on the Automatic Identification System, or AIS, the marine equivalent of the air traffic control system.

    All international vessels, cargo ships above certain weights and passenger carriers of all sizes must carry "Class A" AIS transponders, broadcasting continually updated data, such as identity, position, course, speed, ship particulars, cargo and voyage information to and from other vessels and shore.

    AIS allows port authorities and coast guards to track seagoing traffic, but the system relies on VHF radio signals with a horizontal range of just 40 nautical miles (74 km). This makes it useful within coastal zones and on a ship-to-ship basis, but not in the open ocean; ocean traffic was largely untracked. However, AIS signals travel much further vertically, making the space station an ideal location for space-based AIS signal reception and, therefore, providing the capability of tracking global maritime traffic from space.

    Astronauts were instrumental in enabling the COLAIS experiment, which is an in-orbit demonstration project of ESA's General Support Technology Program. Columbus was not originally outfitted with VHF antennas to capture the AIS signals; they were installed on the outside of the module during a spacewalk in November 2009, with the remaining piece of hardware, the ERNO-Box control computer, installed inside Columbus along with the NORAIS receiver in May 2010. The ERNO-Box is itself an orbital demonstration of a new class of space computer developed by Astrium Gmbh, Germany. Astrium was responsible for overall system integration, and contributed the ERNO-Box and a grappling adaptor, or GATOR, used to attach the AIS antenna to Columbus. Antennas were built by AMSAT.

    Global Overview of Maritime Traffic
    The AIS ground coverage from the station is between approximately 68° north and 68° south. The system consists of two antenna assemblies that were mounted on the outside of Columbus during a spacewalk in November 2009 as well as data relay hardware (the ERNO-Box) and a receiver mounted inside Columbus. The two operational phases with the first receiver from Norway,or NORAIS, which is operated by FFI/Norway, have been extremely successful, with data telemetry received by the Norwegian User Support and Operation Center, or N-USOC, in Trondheim, Norway, via ESA's Columbus Control Center in Germany. Data has been received by NORAIS in almost continuous operation, and all modes of operation have worked extremely well. The NORAIS Receiver has a sample mode that can collect the raw signal, digitize it and send it to ground for analysis of signal quality, which is proving very helpful in making additional improvements/ refinements to the system in extremely crowded shipping areas where the possibility of lost signals or mixed signals can occur.

    This is used both to investigate the signal environment and to evaluate the performance of new receiver technologies on the ground. Several hundred data sets have been collected and processed with new candidate algorithms for next generation receivers.

    The results of the analyses have been very good. On a good day, approximately 400,000 ship position reports are received from more than 22,000 different ship identification numbers (Maritime Mobile Service Identity, or MMSI). In a summary made in Oct. 2011, the total number of position reports received exceeded 110 million messages from more than 82,000 different MMSI numbers.

    As an addition to the original technical topics, operational experimentation has been included in the investigations. Near-real-time data transfer is crucial to meet the requirement of SAT-AIS set by ESA in cooperation with operational users. After an upgrade of the ground systems in the N-USOC, 10 days of near-real-time data show that 80 percent of the messages collected in the period could be delivered through the station's communications network with data latency significantly less than 1 hour. The near-real-time data delivery has been part of routine operations since Nov. 2011.


    Source: nasa.gov via Glenn on Pinterest


     

    At present, a new version of the decoder algorithm, developed by Kongsberg Seatex as part of the technology development contract with ESA, is being tested. The development benefits from the investigations of the sampled data and ongoing work in other ESA projects. The firmware was uploaded to the NORAIS Receiver through the station's communications network and verified and activated in Jan. 2011. The preliminary results indicate that the performance in terms of decoded messages has increased by a factor of between 1.5 and 2.0 for the high traffic zones that ESA has specified should be monitored with high performance.

    The work on better algorithms continues. A second NORAIS Receiver upgrade is planned in May 2012. The results of the development will support the design and development of a space-based AIS system in general as well as the performance of the AIS receiver on the station.

    Integrating AIS information with other satellite data, such as information from remote-sensing satellites, should significantly improve maritime surveillance and boost safety and security at sea. The payload designed for the Norwegian AISSat-1 satellite, which launched into a near polar orbit in July 2010, provides similarly good data in the high north. The NORAIS Receiver is software-defined radio design operating across the maritime band from 156 to 163 megahertz. The tuning of the NORAIS receiver to frequencies under consideration for allocation to space-based AIS has been carried out, and NORAIS took part in international tests of these two proposed frequencies in October 2010 as arranged by U.S. Coast Guard.

    The main reason for covering more than the two current frequencies in use for AIS is to have the possibility to demonstrate the operational use of new channels in the maritime band being allocated to space-based AIS. Also, this configuration allows for characterization of the maritime VHF spectrum with respect to occupancy and interference. The software implementation allows for optimization of the receiver settings in orbit and also allows for upload of new signal processing algorithms.

    The Vessel Identification System, or VIS, could potentially be beneficial to many European entities, particularly in assisting them in law enforcement, fishery control campaigns, maritime border control, maritime safety and security issues, including marine pollution surveys, search and rescue and anti-piracy. Various service entities have already been asking to get access to the VIS data, which is continuously acquired on Columbus. 

     
    < Prev   Next >

     Did you enjoy this article/news and want to stay informed? 
    Click to subscribe to the 2X A Week GISuser Today E-Newsletter


    Submit Your GIS/Geo News/PR


    GeoJobs.BIZ Geotech Career Portal

    • Reach more local job seekers than any other site
    • Expose your ad across hundreds of targeted niche sites
    • Find active and passive job seekers who qualify for your job
    • Leverage the power of social networks in your hiring
    • Access local and national resume databases at no extra charge
    • Use an Applicant Tracking System
      MORE ARTICLES - Check out all the GISuser articles in the archive, stored by category
      Featured Events
      • FOSS4G 2014 - Put on by OSGeo, FOSS4G is the international gathering of open source and geospatial tribes. Join us in Portland, Oregon, USA, Sept 8th-12th
      • Esri Business Summit July 12-15, 2014 - Learn what works and what doesn't work when applying Location Analytics and GIS to business processes from the experts – people just like you. Get the backstory on just how much GIS and Location Analytics is making a difference in their businesses.
      • Trimble Dimmensions - Trimble Dimensions User Conference is the premier event of the year for professionals wishing to stay on top of the most current information on a wide range of technologies. This educational, networking and hands-on training conference provides insight into how you can achieve greater success in your workplace. Nov 3-5, Las Vegas, NV

       List Your Event Here 

      THE GISuser Newsletter

      See Recent edition
      newsletter

      subscribe GISuser

      We won't share your address!
      Sponsor


      Popular Stuff!


      GISuser Site Sponsor


      Partner Sites

      lidar news
      lbszone.com

      amerisurv

      symbianone

      geojobs Geo jobs

      geoLearn

      A Spatial Media LLC property



      Spatial Media, LLC ©2003 - 2013 All rights reserved / Privacy Statement