Elvermont

Terms and report limitations

Binding terms are set out in each accepted quote.

Nature of the service

Reports are observational analysis of multispectral satellite imagery. They are not surveys, valuations, planning, environmental, legal or financial advice, and are not certifications.

Limitations

  • Sentinel-2 pixels are 10 m (some bands 20 m). Objects or changes smaller than roughly 20-30 m across, vehicles, small structures and building interiors cannot be resolved.
  • Images are occasional snapshots (nominal revisit 2-5 days, but cloud frequently prevents usable views in the UK). The record is not continuous and changes between usable captures are not observed.
  • Cloud, haze and shadow masking uses ESA's Scene Classification plus a multi-temporal bright-outlier test; residual undetected cloud or haze can bias individual measurements.
  • Spectral change indicates a change in surface cover. It does not by itself establish the cause, ownership, legality, planning status, safety, value, throughput or contractual compliance.
  • Seasonal and agricultural cycles (harvest, ploughing, drought) can produce changes similar to development; comparisons use the same months in each year to reduce, not eliminate, this effect.
  • Where the site boundary is a mapped or estimated footprint (see Site identity), measurements outside the true boundary may be included or parts of the site excluded.
  • Historical imagery cannot guarantee present or future conditions. This report is observational analysis, not a survey, valuation, environmental, planning or legal certification.

Imagery availability

Cloud and satellite schedules determine which dates can be observed. If usable imagery is not available for an agreed scope we will offer a revised scope or a refund rather than issue a report that does not answer the question.

Licences

Reports contain modified Copernicus Sentinel data, used under the Copernicus data legal notice, and may contain data from OpenStreetMap (ODbL) or UK public-sector datasets (Open Government Licence v3.0). Our reports license our analysis and its presentation; third-party data within them remains subject to its own licence.

Use

Reports are for the client's internal business use unless otherwise agreed. Attributions must be retained.