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Multispectral surveys have the capacity to detect sub-surface features with archaeological potential.

This method uses a camera array equipped with multiple sensors to acquire data invisible to the human eye across the electromagnetic spectrum. When sub-surface features impact the overlying ground, they may be detected following a multispectral survey.

 

A series of raster transformations can be performed using GIS and interpreted in a detailed report to discuss the findings.

For survey areas covered in vegetation, the reflectance shown by the multispectral represents the amount of chlorophyll within the plants. This is indicative of the plants’ health which may be influenced by sub-surface features.

 

For stripped or bare earth survey areas, the reflectance can represent soil organic carbon, soil moisture, or soil texture/density.

 

For example, where a feature such as a filled ditch is present, the reflectance will be different to that of the soil either side and will be represented as different colours following raster transformations. Nuances such as re-cuts and multiple fills, which would otherwise be difficult to see using RGB or with the naked eye, have the potential to be mapped.

 

RGB photogrammetry is carried out alongside multispectral to provide general mapping and identify possible earthworks. A GIS interpretive report is essential to understanding the results from a multispectral survey.

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Above : Interpretations figure from an interpretive report for an RGB and multispectral survey.

  • How accurate is SUMO's underground utility survey and what types of utilities can it locate?
    Using cutting-edge technologies like electro-magnetics, signal induced threading, and Ground-Penetrating Radar (GPR), our underground utility surveys accurately detect a wide array of buried utilities including metal and plastic pipes, drainage systems, electricity cables, telecoms, and fiber optic cables. The methodology ensures high accuracy without the need for invasive trial holes.
  • What is the turnaround time for obtaining results with SUMO's Underground Utility Detection service?
    SUMO’s service is built for rapid response. Contractors can receive immediate results onsite. Our equipment provides real-time information, and once we leave the site, the detected utilities are visibly marked on the ground surface for quick reference.
  • Does SUMO provide detailed mapping of the detected utilities for permanent records or construction purposes?
    Absolutely, SUMO not only marks the detected utilities on-site but also offers high-quality, color-coded survey drawings. These drawings can include topographic features and a comprehensive record of the utility detection survey, ensuring it meets the client’s needs for future reference or pre-construction design works.
  • Topographical and Geophysical survey
    In addition to mapping out utilities, our experience team can accurately survey the land, creating topographical drawings for use. With our state-of-the-art aerial technology, nothing is missed.
  • What additional information can be included in the underground utility mapping service provided by SUMO?
    In addition to topographic features, SUMO’s mapping service can include fixed surface utility features such as inspection chambers, valve boxes, and telegraph poles. It can also incorporate key topographic details like building lines, fence lines, kerb lines, street furniture, street names, building names, and house numbers, facilitating easy site location.
  • Does the utility mapping service by SUMO include standard referencing and compatibility with existing survey data?
    Yes, SUMO ensures the utility mapping references the ordnance survey grid and level datum as standard. Additionally, the drawings can be supplied to a specified grid and level datum and can overlay an existing topographical survey, making it a versatile and adaptable service for various project needs.
  • What sets SUMO Services apart from other survey providers?
    SUMO stands out due to our impeccable level of service with nationwide coverage, state-of-the-art equipment, and our commitment to delivering top-quality, detailed colour-coded survey drawings in both hard and electronic formats.
  • How do I request a survey quotation from SUMO Services?
    Requesting a quotation is easy. Just click on the "Request a Survey Quotation" button on this page, and our team will get in touch with you promptly.
  • Can I book a SUMO Survey online?
    Yes, you can! Simply click on the "Book a SUMO Survey" button on this page, and you can schedule your survey with us at your convenience.
  • What type of survey is suitable for my project or site?
    Our experienced team will work with you to determine the most appropriate survey for your specific needs. Contact us, and we'll assist you in making the right choice.
  • Can I obtain both digital and hard copies of survey drawings?
    Absolutely. We offer the convenience of electronic copies for digital use and hard copies for your records. Just let us know your preference.
  • Do you provide custom survey solutions for unique projects?
    Yes, we understand that every project is unique. Our team is highly adaptable and can tailor our surveying services to meet your specific requirements.
  • How do I get in touch with SUMO Services for further questions?
    For any additional questions or inquiries, feel free to contact us through the contact form, and our dedicated team will assist you promptly.
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