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  • FAA Issues More UAS Exemptions

    The Trimble UX5.
    The Trimble UX5.

    In December, I wrote about the five new commercial UAS (Unmanned Aerial System) exemptions issued by the Federal Aviation Administration (FAA), with one commercial exemption being issued to Trimble Navigation for its UX5 mapping UAS. The precedent was a major step towards integrating commercial UAS operations into the United States airspace. This month, the FAA issued two more commercial UAS exemptions, one of them opening a new world of commercial UAS operations.

    Speaking of exemptions, there’s a pile of commercial UAS exemption requests awaiting review by the FAA. From Amazon.com, who garnered lots of UAS attention when television news magazine 60 Minutes interviewed Amazon CEO Jeff Bezos about its drone delivery concept, to Agribusiness giant Wilbur-Ellis Co. If you’d like to view the list of requestors as well as read their submissions, click here. How much time does it take from submission to a exemption approval? The FAA doesn’t provide that estimate, but I’ve spoken to several organizations that have been granted exemptions and Certificates of Waiver or Authorization (COA). The quickest timeline I’ve heard is three months.

    The Phantom 2 Vision+ UAS
    The Phantom 2 Vision+ UAS

    As I mentioned above, two new commercial UAS exemptions were issued earlier this month. One went to Advanced Aviation Solutions LLC, who was granted an exemption to fly the Swiss-made eBee Ag UAS for precision agriculture. At US$25,000 each, the eBee Ag is for the serious drone connoisseur.

    The other commercial UAS exemption was issued to a realtor in Tucson, Arizona. This exemption is interesting because it’s the first one issued that makes use of the DJI Phantom II Vision+ quad copter UAS. The Phantom II Vision + sells for well under US$2,000 and is generally considered a consumer UAS rather than one purpose-built for commercial users. However, it clearly has the capability of being used by realtors, and thanks to support by Pix4D, a Swiss-based commercial UAS imagery software maker, it can be used for capturing imagery for mapping and generating 3D models.


    At well under $2,000, the DJI Phantom II Vision+ price point is affordable for even the most basic commercial UAS application. The cost is relatively insignificant compared to the cost of image processing software from PIX4D, which at US$7,500 is more than five times the cost of the Phantom.

    No matter which model UAS is being approved in the exemptions, the FAA expects all operators to adhere to many rules in common. One is that the Pilot in Command (PIC) must possess at least an FAA Private Pilot certificate. What does it take to qualify for an FAA Private Pilot Certificate? It’s not a small or inexpensive undertaking. Generally speaking, you need to:

    1. Pass a written knowledge test after completing ground school.
    2. Accumulate 40 hours of flight instruction and solo flight time.
    3. Possess an FAA third-class medical certificate.
    4. Pass a flight test administered by an FAA examiner.

    In terms of cost, a typical small aircraft (Cessna 152) suitable for training will cost you upwards of $90/hour to rent (including fuel). Add all the other costs in and you’re looking at spending more than $10,000. This doesn’t include the time you will spend studying, and there’s a lot to study, from weather phenomena to instruments to aircraft performance to maps.

    Now, the FAA exemptions don’t specify that the exemption holder must have a Private Pilot certificate. If you possess such an exemption, you can hire a Private Pilot to act as Pilot in Command (PIC) of the UAS, but costs start adding up quickly if you have to hire a PIC and also have a Visual Observer (VO) present, which the exemptions are requiring.

    Things are certainly heating up in the commercial UAS world. I have to commend the FAA for stepping up to the plate and taking action to allow commercial UAS operations (however limited) well before the U.S. Congress-imposed deadline of September 2015 for releasing rules for integrating commercial UAS into the United States airspace.

    Thanks, and see you next month.

    Follow me on Twitter at https://twitter.com/GPSGIS_Eric

  • Esri Releases Demographic Data for 137 Countries

    Esri has added geodemographic informationfor 57 additional countries to its ready-to-use ArcGIS apps, including Esri Business Analyst Online (BAO) and Esri Community Analyst. Up-to-date population, income, employment, and consumer spending information helps businesses — including retailers, real estate brokers, merchandisers, supply chain managers, and marketers — better understand local markets all around the world, the company said.
    “In today’s global economy, organizations are interested in providing the best services and goods to customers in more than one area,” said Simon Thompson, director of commercial business at Esri. “Esri’s comprehensive data provides the insight organizations need to do business at a hyperlocal level and really meet the needs and demands of local consumers.”

    The newly added countries include those in Latin America and Africa, bringing the total number of countries to 137. In addition, Canadian data has been updated to include 2014 updates, and Australia, France, Germany, and India now have advanced datasets and new reports including household, population, and summary data.

    See a comprehensive list of global Esri Demographic data, and visit Esri booth 3171 at the National Retail Federation show in New York’s Jacob K. Javits Convention Center, January 11–13.

  • Golden Software Releases MapViewer 8

    Users can create and customize maps with a new ribbon bar interface and redesigned managers.
    Users can create and customize maps with a new ribbon bar interface and redesigned managers.

    Golden Software has released MapViewer 8, which is says has numerous enhancements over its predecessor program. Enhancements inlcude new map types, increased file compatibility, the ability to download base maps from online servers, enhanced querying functionality, and a new user interface.

    MapViewer is a mapping and spatial analysis tool that allows users to produce publication-quality thematic maps. Users can precisely display their data distribution with intuitive functions and features.

    Golden Software is offering a free demo download so customers can try out the new features with their own data.

    The new bivariate option for the symbol map can create visually dynamic maps that display variables in an easy-to-understand way. This map, from beta tester Thierry Hatt, displays house surface area as symbol size and percentage of house surface area divided by property surface area as symbol color for Strasbourg, Alsace, France (1765 land survey information).
    The new bivariate option for the symbol map can create visually dynamic maps that display variables in an easy-to-understand way. This map, from beta tester Thierry Hatt, displays house surface area as symbol size and percentage of house surface area divided by property surface area as symbol color for Strasbourg, Alsace, France (1765 land survey information).
  • Getmapping Provides Enhancements to Its Online GIS

    Getmapping has released version 6 of its multi-featured Online GIS program. The new version has been enhanced with support for worldwide projections, a module for publishing Inspire-compliant WMS/WFS and a new module for Getmapping’s panoramic imagery product, Street Layer. Getmapping’s Online GIS, together with its associated cloud storage and built-in national mapping layers, allows organizations to share information across their users and clients anywhere in the world.

    Support within the Online GIS for worldwide projections now opens up the solution to users around the world, and the software has already been deployed in a number of countries including Uganda, Kenya and South Africa. This, together with the fact that the product can be white-labeled, also opens up significant partnering opportunities, the company said.

    Getmapping Online GIS can be used as an organization’s primary web mapping tool to share a range of map layers including aerial imagery, local mapping, environmental data, and the customer’s own data, taking advantage of Getmapping’s high speed data center. It can also perform key GIS tasks such as address searching, measuring, spatial analysis and printing to scale. It can provide everyone within an organization with access to the company’s map information, helping them to do their job more efficiently.This removes the burden of installing traditional GIS software, which is often expensive and difficult to learn, the company said.

    To assist local government with meeting and exceeding their Inspire obligations, a new Inspire cloud service has been built based on the Getmapping Online GIS technology. Several key features are included to simplify the process of becoming Inspire compliant including a geodata layer uploader, built-in data editing (which is instantly visible), a metadata importer and editor as well as Data.gov.uk harvesting to enable “discovery, view and download” services within a few minutes. Competitively priced and easy to deploy, Inspire Cloud will have customers publishing map layers within a short amount of time, the company said.

    Street Layer is another Getmapping product now fully integrated into the Online GIS platform. It allows accurately positioned panoramic images to be viewed alongside high quality mapping.With the added benefits of 3D measurement tools and GIS overlay capabilities, Street Layer has proven itself in a variety of applications including local government; policing, fire and rescue; insurance risk and claim validation; and local community work. Key uses have included measuring the distance from a street to a door, the height of a building or asset, the differences between different years of imagery, as well as improving the quality of asset databases. Trial accounts, including sample data of your area of interest, are now available.

    “The enhancements that we have introduced to our Online GIS platform are really significant,” said Dave Horner, managing director of Getmapping. “Customers not only benefit from a simple to use application with access to cloud-hosted aerial photography, integration with address gazetteers and national mapping but also now the Street Layer panoramic imagery which in many cases eliminates the need for a site visit. Worldwide projections are now also supported meaning we have a product that can be used anywhere in the world, and we are already seeing the benefits for some of our African customers. Finally, the Inspire Cloud module helps organizations that need to publish data become Inspire compliant.”

  • Leica Offers DISTO E7500 for Simpler Outdoor Distance Measurement

    The Leica DISTO E7500 laser distance meter.
    The Leica DISTO E7500 laser distance meter.

    Leica Geosystems has released the Leica DISTO E7500 laser distance meter, a tool for anyone who needs easy, precise measurements outdoors. An advanced digital Pointfinder and 4x zoom enables users to take measurements with high accuracy up to a 500-foot range in all light conditions. This capability is a distinct advantage when working outside in sunny weather; even if the red laser point is no longer visible, the target can easily be seen on the tool’s full-color display, Leica said.

    The housing and keypad are sealed against water and dust, and certification to the rigorous IP65 rating allows use in adverse weather conditions. It can also be cleaned under running water.

    A Smart Horizontal Mode enables the DISTO E7500 to provide an accurate result even when encountering obstructions such as walls, hedges or people. One measurement to the target is enough for the required horizontal distance to appear on the display, Leica said.

    Other capabilities include automatic calculation of volumes or areas, two programmable favorites keys, timer delay, a 30-position memory, an offset function, and 15 options for units of measure.

    The Leica DISTO E7500 is certified to ISO Standard 16331-1 for precision and performance in everyday use on the jobsite.

  • CNN Signs UAV Research Agreement with the FAA

    CNN has entered into a Cooperative Research and Development Agreement (CRDA) with the Federal Aviation Administration to advance efforts to integrate unmanned aerial vehicles (UAVs) into newsgathering and reporting.

    The cooperation arrangement will integrate efforts from CNN’s existing research partnership with the Georgia Tech Research Institute (GTRI). Coordination between and among CNN, GTRI and the FAA has already begun. The FAA will use data collected from this initiative to formulate a framework for various types of UAVs to be safely integrated into newsgathering operations.

    “Our aim is to get beyond hobby-grade equipment and to establish what options are available and workable to produce high quality video journalism using various types of UAVs and camera setups,” said CNN Senior Vice President David Vigilante. “Our hope is that these efforts contribute to the development of a vibrant ecosystem where operators of various types and sizes can safely operate in the US airspace.”

    “Unmanned aircraft offer news organizations significant opportunities,” said FAA Administrator Michael Huerta. “We hope this agreement with CNN and the work we are doing with other news organizations and associations will help safely integrate unmanned newsgathering technology and operating procedures into the National Airspace System.”

     

  • LiDAR Mapping Forum Considers Geospatial Trends, UAVs

    ILMF 194-W2

    The International LiDAR Mapping Forum, set for February 23-25 in Denver, is a technical conference and exhibition focused on data acquisition, fusion, processing and point clouds for aerial surveying and mapping used to support transport, urban modeling, coastal zone mapping, utility asset management, and more.

    Geospatial Technology Trends. ILMF is considered by many the premier conference for the latest geospatial technological developments, from innovations in photogrammetry to advances in aerial LiDAR systems. Attendees can explore an international exhibition of leading hardware and software suppliers showing their newest releases, and attend sessions where more than 60 experts will present best practices and case studies for cutting-edge technologies such as:

    • Geiger-Mode LiDAR
    • Focal Plane Array (FPA) LiDAR
    • Mobile Mapping Systems (MMS)
    • Unmanned Aerial Vehicles

    ILMF-288-WFocus on UAVs. This year, ILMF features a UAV workshop and pavilion, where industry leaders discuss the current regulatory landscape and legal guidelines, UAVs versus aerial LiDAR, training and insurance considerations and more.  Additional program content will cover topics like “Does Camera Quality Matter in sUAS Photography?” and “LiDAR Scanning with Supplementary UAV Captured Images for Structural Inspections.”

    Other topics covered at the conference include:

    • Data fusion
    • Extracting from point clouds
    • Managing large data sets/point clouds
    • Airborne, terrestrial and bathymetric LiDAR
    • Coastal zone, defense and flood plain LiDAR
    • Corridor and utilities mapping
    • Data classification, GIS

    Organizers say participants can gain much from networking with and gaining valuable information from other precision-measurement and imaging professionals across disciplinary lines. Attendance at ILMF 2015 is expected to exceed 800, and will include professionals from these organizations who have already registered:

    • ILMF-WAECOM
    • American Transmission Co
    • BAE Systems
    • Ball Aerospace
    • BNSF Railway
    • Bonneville Power Administration
    • Devon Energy Corporation
    • Dewberry
    • NASA
    • National Geospatial-Intelligence Agency
    • NAVAIR
    • U.S. Department of Agriculture
    • U.S. Department of Transportation
    • U.S. Forest Service
    • U.S. Geological Survey
    • Woolpert

    Registration is open.

    Photos: Tracy Cozzens

  • Sporting Goods Maker Offers GPS/Bluetooth Goggles

    Smith-Optics-snowgoggles Photo: I/O Recon
    Photo: I/O Recon

    Sporting goods maker Smith Optics is offering I/O Recon goggles for winter sports enthusiasts, which combine Smith’s premium anti-fog lenses with GPS and Bluetooth technology. A heads-up display is integrated into the frame design, allowing users to log and view information without taking their eyes off the powder.

    According to Smith Optics, the frame design maximizes field of view. With the heads up display, skiiers and snowboarders can see the speed they’re going, the height of their jumps, and track and follow their friends on the slopes. The Bluetooth allows connection to a smartphone.

    List price for the goggles is $650.

    Smith-Optics-snowgoggles-1
    Photo: I/O Recon
    Smith-Optics-snowgoggles-2 Photo: I/O Recon
    Photo: I/O Recon

     

     

  • Verizon Vehicle Service Designed for Unconnected Cars

    Verizon will soon be offering Verizon Vehicle to U.S. consumers. The new connected-vehicle service aims to modernize traditional roadside assistance offerings while enhancing driver safety, convenience and savings, according to Verizon. Verizon made the announcement today at the North American International Auto Show in Detroit.

    Verizon Vehicle is expected to make its commercial debut in the second quarter of 2015. With Verizon Vehicle, drivers will have easy access to diagnostic technology, live assistance, and roadside assistance with GPS accuracy. The service can connects drivers to live A.S.E. certified mechanics to diagnose potential problems and offer solutions. If drivers need assistance, the built-in GPS identifies their exact location, and a tow truck driver or other help can be dispatched as needed, with precision.

    Erik Goldman, president of Verizon Telematics, explained that more than 200 million U.S. vehicles lack connected capabilities, vehicles that could benefit from the new service.

    “As one of the largest communications companies in the world, we are dedicated to providing consumers with innovative technology solutions that connect people, solve challenges and inspire change,” Goldman said. “Verizon Vehicle is a unique and truly holistic aftermarket solution available to over 200 million vehicles on the road today. It affords millions of drivers the power of knowing when things aren’t working well, potentially before a breakdown occurs — fostering a safer, smarter and more economical way to drive and maintain a vehicle. And while even the best technology can’t prevent every breakdown, the service modernizes the traditional roadside assistance offerings which, for the most part, haven’t been updated in 50 years.”

    Verizon Vehicle is powered by the Verizon Wireless network and is compatible with nearly every vehicle made and sold in the U.S. since 1996 — more than 9,000 makes and models. Verizon Vehicle will launch as a subscription-based service available to drivers regardless of the wireless service provider they use for their mobile devices. Members also receive discounts on travel including hotels and auto services.

    The service operates through an OBD reader that can be self-installed in the under-dash diagnostic port, a Bluetooth-enabled speaker attached to the visor and a smartphone app. Members can choose to use the app or elect to set up the service to contact them — by phone, text, push notification or email — if a potential issue is detected with their vehicle. The speaker offers one-button push connection to the member care group, the mechanics hotline and roadside assistance, as well as a second button for SOS emergency situations.

    The subscription-based service will include:

    • GPS-directed pinpoint Roadside Assistance for breakdowns, flat tires, overheating, a dead battery — anything that might require towing or immediate repair. Dispatches are made to the exact location of a disabled vehicle.
    • Automatic Urgent Incident Alert System places a call to the Verizon Vehicle Member Care Center in the event of a suspected accident. Help is immediately dispatched to the location if an accident is confirmed or there is no response from the driver. The time saved can potentially save lives by delivering critical emergency assistance when a person may not be able to call for help.
    • One-Button SOS Assistance immediately connects the driver to a live agent for emergency aid.
    • Auto Health System with Predictive Diagnostics translates most “check engine” light occurrences into real terms, including the description and severity of the matter, the probable solutions for the problem — and the appropriate cost for the repairs. The system is also designed to provide early warnings relating to some vehicle functions, even before a warning light comes on, to help keep you off the side of the road.
    • Mechanic’s Hotline is staffed with A.S.E. Certified Mechanics providing members access to immediate and unbiased information related to their vehicles, and a professional analysis of trouble they may be experiencing.
    • Parking & Meter Tools help drivers find where they left their vehicle —using the Verizon Vehicle smartphone app — while also keeping track of how much time is left on the meter.
    • Maintenance Alerts inform vehicle owners when scheduled maintenance is required. No more guesswork as to when to rotate those tires or change the oil.
    • Stolen Vehicle Location Assistance guides drivers when reporting a theft and helps authorities recover the stolen vehicle.
    • Travel & Repair Savings — Verizon Vehicle members will be entitled to discounts on hotels, vehicle rentals, auto maintenance, repairs and related travel expenses.

    The service is expected to launch nationally this spring with availability thru nationwide retailers late in 2015. Advance consumer orders for the service are being accepted at VerizonVehicle.com and at 800-711-5800.

  • PNT Board Report: GPS Critical Infrastructure, Concern over International Signals

    Report on the 14th meeting of the National Space-based PNT Advisory Board in Washington, D.C., held December 10-11, 2014.

    By Ron Hatch

    Ron Hatch
    Ron Hatch

    The December meeting of the PNT Advisory Board meeting brought forth important developments and proposals for the protection of GPS as part of the U.S. critical national infrastructure. A separate presentation made by speakers from the National Telecommunications and Information Administration (NTIA) and the Federal Communications Commission (FCC), concerning possible limitations on the use of signals from other GNSS, generated some controversy, alarm, and extensive follow-on discussion by industry, users, and other concerned parties.

    Critical Infrastructure. Perhaps the most important presentation was that of Brad Parkinson, the acting chair, in his recap of the recommendations to be made by the Advisory Board to the PNT EXCOM.

    The first recommendation was a reiteration of the Advisory Board opinion that the GPS be designated as one of the “critical infrastructures” of the United States. This opinion was based upon the fact that 14 of the existing designated critical infrastructures involves the use of GPS. The feeling was that such a designation would enhance the attention focused upon ensuring GPS reliability.

    A second recommendation was that a comprehensive threat assessment to GPS operation be generated that can be used to assess its vulnerabilities. The remaining recommendations to the EXCOM were based upon the results of studies by the two working groups that were presented next.

    The two working groups of the advisory board, specifically the “Assured Availability and the “Economic Value of PNT” working groups, gave the next set of presentations. The Assured Availability working group was split into three sub-groups. The three aspects addressed were to “Protect,” “Toughen,” and “Augment.” The Protect working group recommended action to encourage the reversal of European initiatives to authorize pseudolites that broadcast within the GNSS L1 frequency band. Since such pseudolites would constitute authorized interference to standard GNSS receivers, it was recommended that our State Department encourage a reconsideration of the pseudolite proposals and that they be constrained to operate on a frequency outside the L1 frequency band.

    The Toughen working group looked at a number of measures by which GNSS receivers could be improved to better withstand intentional and unintentional interference. Phased array antennas, inertial aiding and various software tracking improvements were discussed. An invited presentation by Gary McGraw of Rockwell addressed some of these issues particularly from a military perspective. An additional invited presentation upon the requirements for precise time-keeping in trading of financial transactions was presented by Andrew Bach.

    The Augment working group discussed a number of ways in which the GNSS capabilities could be augmented. Prior recommendations that eLoran should be maintained as a backup was again strongly recommended. In addition, the ability to track other GNSS satellites in addition to GPS satellites was encouraged, even though it was recommended that special precautions and automated checks needed to be implemented in the light of the system failures that have been noted with the GLONASS satellites. A very interesting invited presentation by Robert Lutwak of the Defense Advanced Research Projects Agency (DARPA) described the continuing progress toward higher precision inertial sensors.

    The second working group, the Economic Value of PNT, reported on firmed up plans to strengthen the existing studies of the economic value of PNT by engaging the economists resident within the various cabinet departments within the EXCOM to which the Advisory Board reports. The detailed plans were given in a presentation by Irv Leveson that outlined the plans for “A Comprehensive Quantitative Economic Assessment of GPS.”

    It is not my intention to slight any of the other presentations, but I felt two of the remaining presentations were very important. Specifically, the presentation by Karen Van Dyke on Department of Transportation plans regarding “Adjacent L-Band Compatibility and GPS Signal Monitoring” was very encouraging. Among other items, it indicates that adjacent band-power limits will be carefully analyzed and tested to ensure that all existing applications of GPS will not be harmed.

    FCC on International Signal Use. The second presentation that I felt was very important was by Paige Atkins of the National Telecommunications and Information Administration (NTIA) and Ronald Repasi of the Federal Communications Commission (FCC). Their presentation was titled “NTIA/FCC Spectrum Management Perspectives.” The presentation  covered the background and intent of the various authorizing legislation. There were, however, some disturbing comments made.

    Specifically, the item on the slide about National Space Policy that had a major bullet: “Guidance to all departments and agencies – ‘maintain and enchance’ space-based PNT systems. To this end the U.S. shall (among other things)…” There were two sub-bullets.

    The first addressed GPS protection as a critical infrastructure component. The second sub-bullet stated “Foreign PNT services ‘may be used to augment and strengthen the resiliency of GPS.’” The verbal transcript is not yet available, but it seemed to me that Ron Repasi minimized this statement by indicating that resilience was subject to interpretation.

    The real alarm was in his following comments during the question-and-answer discussion, where he indicated that the use of GLONASS within U.S.-based receivers was not authorized and that, therefore, the frequency band they used was not necessarily subject to protection. In addition, it was indicated that three years ago, procedures were developed whereby one could apply for authorization to the use the GLONASS signals. To date, Ron Reposi indicated that no organization had applied for authorization to use GLONASS, and that therefore it was currently illegal to use it.

    Significant discussion was generated by the above, both following the presentation and the next day in a recap. From the discussion, it appears that a March 2011 regulation outlining the requirements for authorization of receiving “Earth stations” is being interpreted by the FCC as requirements for authorization of GLONASS receivers.

    [Editor’s note: The process for securing a waiver of FCC regulations requiring authorization to receive international RNSS satellite signals was identified in an FCC Public Notice released in 2011.  This process is initiated by National RNSS System providers, which have the satellite information needed to secure a waiver.  Members of the GPS Innovation Alliance (GPSIA, www.gpsalliance.org, formerly the U.S. GPS Industry Council) have stated that they remain fully committed to producing  multi-GNSS signal user equipment consistent with U.S. policy, and to working with the FCC and NTIA in considering these requests.]

    In light of the multitude of GLONASS receivers already in use, including a number of U.S. government and agency receivers, the discussion was primarily on what should be done next. The decision taken was not to panic, but to bring the problem to the attention of the various government departments represented on the EXCOM and proceed with some caution.

    The possibility was raised that NASA, in conjunction with the State Department and other interested parties, could seek a blanket authorization to use GLONASS within GPS receivers. This was discussed and presented as a possible way forward. Clearly, the issue is one that will be followed with great interest.

    For all the presentations at the December meeting, see the presentation slides here.

  • Proteus Launches Daily Satellite-Based Water Quality Monitoring Service

    Proteus FZC, a provider of satellite-derived mapping and classification services, is now offering a daily water quality monitoring service for the Arabian Gulf. Derived from NASA satellite data, the new service provides daily online access to reports on six water quality parameters at 250-meter to 1-kilometer spatial resolution.

    “We can further improve the accuracy of the standard NASA data by calibrating each data set to local water conditions,” said Proteus CEO David Critchley. “The easy-to-read reports are available online or can be delivered in PDF formats via email.”

    Proteus now offers the daily service for organizations responsible for monitoring and maintaining the condition of coastal and offshore waters — environmental agencies, energy producers, desalination operators, marine engineering firms, and dredging companies.

    “If an offshore infrastructure construction project is responsible for excessive water turbidity, the engineering company has to remediate the problem quickly,” Critchley said. “Likewise, desalination and power plants need to take precautionary actions if too much suspended sediment or sudden algal blooms are spotted near their operations.”

     The daily water quality reports are derived from processed data collected by the MODIS (Moderate Resolution Imaging Spectroradiometer) sensors which fly aboard the orbiting NASA Terra and Aqua satellites.

    “The sensors typically provide water quality details to a depth of three meters, depending on water column clarity,” said Critchley

    The daily water quality reports provide the following information:

    • Total suspended sediments (mg/L) at 250-meter resolution
    • Chlorophyll-a content (mg/m3) at 1-km resolution
    • Sea surface temperature (degrees C) at 1-km resolution
    • Turbidity or fluorescence line height (mW/cm2/µm/sr) at 1-km resolution
    • Diffuse attenuation coefficient (m-1 at 490 nm) at 1-km resolution
    • True color composite (image) at 250-meter resolution

    The 250-meter resolution is suitable for marine monitoring because it enables data collection for the entire gulf region several times per day. When the regional 250-meter resolution MODIS-derived product reveals a water quality anomaly or if increased spatial detail is required, Proteus water quality customers have the option of requesting higher resolution reports processed from other satellites that can map events in more detail.

    “We will soon expand the daily water quality monitoring service to ice-free oceans, seas and large lakes worldwide,” Critchley said.