Geospatial & Educational Disclaimer
Last Reviewed: September 2026 • Published by GISTECHNEWS Operations
1. Not Official Land Survey or Cadastral Advice
The computational tools, WebGIS dashboards, parcel digitization modules, and coordinate conversion utilities provided on GISTECHNEWS.com are developed strictly for academic, educational, planning, and preliminary analytical purposes.
Calculations performed on this website—including geodesic polygon areas (in square meters, hectares, or acres), linear boundary lengths, and coordinate projections (WGS84 to UTM)—do NOT constitute an official cadastral land survey, certified engineering title demarcation, or legal boundary settlement. Establishing legally enforceable property boundaries requires physical on-site measurement using calibrated total stations and dual-frequency GNSS/RTK receivers by a licensed, government-certified land surveyor.
2. GPS & Geolocation Precision Limitations
When utilizing the Survey Modeor geolocation positioning tools on mobile devices, position coordinates are constrained by the physical accuracy of your consumer mobile device's internal GNSS chipset. Smartphone GPS positioning is typically subject to a spatial error margin of 3 to 15 meters under open sky, and significantly higher in urban canyons or heavy tree canopies. GISTECHNEWS makes no warranty regarding the sub-meter precision of consumer GPS readings.
3. Educational Tutorials & Code Walkthroughs
Our technical tutorials (covering QGIS, Google Earth Engine, Python GeoPandas, GDAL, and satellite remote sensing) are published in good faith based on software states at the time of writing. Due to continuous version updates in open-source geospatial software (e.g., QGIS algorithm syntax updates or deprecations in Python packages), users should verify software versions and dependencies against current official documentation.
4. Basemaps & Third-Party Satellite Data Attribution
Map tiles, satellite imagery, and geocoding services accessible through our WebGIS dashboard originate from third-party data providers:
- OpenStreetMap: © OpenStreetMap contributors under ODbL.
- Esri World Imagery: © Esri, Maxar, Earthstar Geographics, and the GIS User Community.
- Copernicus Sentinel Data: European Space Agency (ESA) open data access.
- USGS/NASA Landsat & SRTM: Public domain United States Geological Survey data.
5. Contact Regarding Disclaimers
For questions or clarifications regarding this disclaimer, please contact us at support@gistechnews.com.