Geospatial Consulting

eMap Contact: David Nale, CEO
Email: dnale@emap-int.com
Cell: (352) 258-1631

Over the past decade eMap International has worked at the highest levels of business and government on both a National and International basis providing independent strategic and tactical geospatial consulting services. Our clients include such noted companies as Kodak, First American, Rolta and GeoEye; as well as government organizations in the United States, Switzerland, Portugal, New Zealand and the Middle East. eMap’s senior staff possesses over 80 years of experience in the geospatial profession.

High-Resolution Satellite Imagery

eMap Satellite Sales: Brock Adam McCarty, Director of Geospatial Products & Services
Email: bmccarty@emap-int.com
Cell: (720) 470-7988

With over 15 years of experience working directly for high-resolution satellite imaging companies, eMap International is well versed in the product offerings, ordering processes and product generation systems of these firms. As such, we are uniquely qualified to guide you through the entire purchasing and product delivery process.

Our experienced sales staff is able to help define and understand project requirements and then work with the satellite firms to ensure proper image acquisition and/or location in image libraries; and to match the proper product offerings to these needs. We have worked with hundred of clients in industries across the spectrum, providing appropriate high-resolution satellite imagery meeting multiple requirements. Should a technical question arise, eMap’s experience does not stop with sales assistance. Having worked closely with Production and Quality Control teams within the imaging companies, eMap International can answer technical and operational questions promptly and accurately.

eMap International is pleased to offer competitive prices as well as academic and large-volume order discounts. Call our Sales Team at (720) 470-7988 for more information on imagery coverage and pricing.
 

Sample Project Experience

eMap International was contracted by the NOAA Center for Coastal Fisheries and Habitats to provide high-resolution, georectified 4-m resolution IKONOS multispectral satellite imagery for the Coast of Buford, North Carolina. The newly collected IKONOS imagery was used for aquatic vegetation mapping, with specific interest in mapping sea grass. The client requested a new image acquisition under very demanding and exacting collection parameters. Image collection involved a relatively short tasking window with precise look angles, sun angles and satellite attitude and azimuth parameters to avoid sun glint on water and to insure maximum water penetration. Weather, tide conditions and amount of clouds in the project area presented additional challenges. Tasking was completed efficiently, met all collection parameters and the final product was generated and delivered within days of image collection. The data and schedule exceeded the client’s expectations for this project.

City of Durham, NC – Impervious Surface Map (ISM™) Product & Custom Orthoimagery

Approximate Size: 103 square miles

eMap International produced an Impervious Surface Map (ISM™) for the City of Durham, NC (94 square miles) in 2005 and an ISM™ update (103 square miles) in 2006 and 2007. Impervious surfaces were quantified for each of the approximately 70,000 water and sewer customers in square feet and percent per parcel. Parcels included residential at different densities, commercial, industrial and other landuses. Deliverables included the 1”=400’ 4-band multispectral (blue, green, red, infrared) orthoimage of Durham (produced using rigorous photogrammetric methods); and the impervious surface map (binary raster GeoTiff and ESRI shapefile) with associated attribute table containing the amount of impervious surfaces for each parcel in square feet and the percentage of impervious surfaces contained within a parcel. The attributes were also included in an Excel spreadsheet. Final ISM™ product accuracy was greater than 90% (97% in 2006 and 2007). This repeat business and continuing updates planned for the future via a subscription program demonstrates and validates both the quality and usefulness of the ISM™ product.

In 2007, the high-resolution satellite, QuickBird, was programmed for a new collection during the late-winter and early-spring leaf-off months. Cloud-free data was obtained over the entire County of Durham and was subsequently orthorectified by registering the data to a customer-provided land base layer.

Jeff Liedtke performed as project manager for both projects to ensure the delivered impervious surface map met both standard product specifications, customer expectations and that the ISM™ product was delivered on time and within budget. Dr. Kumar Navulur applied eMap’s proprietary classification algorithms to extract impervious surfaces for both projects. David Nale, eMap President, acted as Principal in Charge for both projects. Brock McCarty, eMap Sales Manager, acted as project manager for the collection and production of the custom orthoimagery.

Independent Quality Review of Geospatial Data

eMap International was awarded a contract by Hamilton County, Indiana, to provide independent quality review for the County’s recently acquired 2007 digital orthophotography, topography and planimetrics data.

eMap International was contracted to provide a through quality review for 434 square miles of 6-inch resolution, digital natural color orthoimagery, topographic DTM, and updated planimetrics layers including; edge of pavement, buildings, and hydrographic features. The Quality Control Review was completed within 30 days of the delivery of the data. Larry Stout, GIS Manager with Hamilton County stated, "In the past, we have done the QC in-house and it has taken a year or more to complete because we had to fit it in with our normal workload."


Example of opposing building lean caused
by seam lines.

Contact eMap International