Aerial Photography Imagery and Height Data Procurement Pre-market engagement webinar 5 September 2019
WebEx ● If you have any issues with audio or anything else on the WebEx platform, please use the conversation box on the right hand side ● Please keep your microphone on mute ● Please use the question box for questions during the Q&A session ● These slides and the Q&A will be circulated after this webinar Geospatial Commission
Agenda Time Item Duration 11:00-11:10 Introducing Geospatial Commission Contracts 10 mins Team 11:10 - 11:40 Overview of Aerial Photography and Height Data 30 mins Requirements - Imagery - Height 11:40 - 11:50 Next steps 10 minutes 11:50 - 12:00 Time to ask questions (all questions and answers 10 minutes will be published) Geospatial Commission
Purpose of this pre-market engagement ● Test feasibility with market ● Give an overview of the requirements for opportunity RM6176 ● Provide an opportunity for questions and answers ● Invite you to engage in the next steps - feeding back on the draft specification and licensing terms and conditions Geospatial Commission
Introducing the Requirement ● Aerial imagery and height data - all public sector organisations in England, Scotland, and Wales ● Imagery data is being procured for a range of requirements across the public sector, examples include: - Imagery layer for planning critical operations (emergency response to incidents, civil contingency planning) - Assessing land development proposals ● Height data is being procured for a range of requirements across the public sector, examples include: - Modelling terrain for response in the event of a flood - Elevation models in urban areas ● Web services - for accessing the data online Geospatial Commission
Imagery Data Specification: Mandatory requirements The specification will feature three aerial photography imagery products with the following mandatory requirements: RGB 25cm RGB 12.5cm Colour Infrared resolution resolution 50 cm resolution ● 100% GB coverage ● Ortho-rectified ● Colour balanced ● All imagery should be no older than three years ● Coastal coverage and inter-tidal areas ● RICS 2001 practice standard for vertical aerial photography and digital imagery ● 100% temporal compatibility between the three data sets Geospatial Commission
Imagery Data Specification: Mandatory requirements The specification will feature three aerial photography imagery products with the following mandatory requirements, unique to the type of imagery: RGB 25cm RGB 12.5cm Colour Infrared resolution resolution 50 cm resolution ● RGB bands ● RGB bands ● Near infrared, visible as ● Mean High Water Line to ● Mean High Water Line to red be provided on request be provided on request ● Green, visible as blue ● Raster Format ● Raster format ● Red visible as green ● Colour-balanced ● Colour-balanced ● Ortho rectified ● Ortho rectified ● Ortho rectified Geospatial Commission
Imagery Data: Highly Desirable Requirements The specification will feature three aerial photography imagery products with the following highly desirable requirements: RGB 25cm RGB 12.5cm Colour Infrared resolution resolution 25 cm resolution ● On request, non-colour balanced imagery and stereo scans should be provided ● 5cm resolution for all urban areas by the end of the contract period. ● All imagery should be no more than two years old ● Certain areas will be prioritised for capture at the request of the authority Geospatial Commission
Height Data Specification: Mandatory Requirements The specification will feature height data products with the following mandatory requirements: Digital Surface Digital Terrain Model (DSM) Model (DTM) ● 100% GB Coverage ● Raster and vector formats ● Temporal currency with aerial imagery ● Coverage of all GB land features ● 100% attribute/metadata assigned to each feature ● 2m cell size for the DSM ● 5m cell size for the DTM Highly desirable - DTM at 2m cell size Geospatial Commission
Metadata - Mandatory Requirements ● UK Gemini 2.2 standard (and updates to this standard) ● Individual metadata should accompany each tile, and this will be provided as a vector layer. ● Cut lines within tiles should feature in vector layer. ● Tile reference ● Flight line ● Time and date of capture ● Image footprints ● Processing applied to data ● Ortho-accuracy ● RMSE (positional accuracy) Geospatial Commission
Data delivery - Mandatory Requirements ● Data Capture programme and quality assurance plan ● All data to be made available in the year within which it is captured ● Accessible to all public sector organisations online for download ● Hard media orders (DVD/hard drive) ● All orders to be fulfilled within 10 working days ● Data relating to specific areas or GB as a whole to be provided at licensee’s request ● Options for both full supply and change only update Highly Desirable ● Provision of updates automatically when a licensee’s area of interest is re-captured ● All orders fulfilled within 7 working days Geospatial Commission
Web services - Mandatory Requirements For all aerial imagery and height data products: ● Web services (Web Map Services, Web Feature Services, Web Map Tile Service) that all organisations can use to access the data ● Compliant with Open Geospatial Consortium Interface standards ● Including Gemini 2.2 compliant metadata as a vector layer (and updates to this standard) Geospatial Commission
Next steps ● We will email everyone documents by the end of the day today (5th September): - Draft contract specification - Draft licensing terms - Template on which to provide comment ● You will have until the end of Friday 13th September to review the documents, complete the template and return it to us at gccontractsteam@cabinetoffice.gov.uk ● These slides and the Q&A will be published on the opportunity page for RM6176 ● If you have further questions, please send them via email when you return the template. We will publish all answers on the opportunity page w/c 16th September. All questions must be sent in by Friday 13th September. ● We will incorporate feedback into the final specification. We are planning to launch the invitation to tender at the beginning of October. Geospatial Commission
Answering your questions... Q&A Geospatial Commission
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