National Tree Map Mapping Great Britain's vegetation

Discover Bluesky’s National Tree Map (NTM): what it is, why it’s needed, and how it’s built from aerial imagery and height data. See real‑world uses (biodiversity net gain, urban planning), upcoming enhancements (NTM Plus, NTM Risk, species attribution KTP), and the sister National Hedgerow Map. Finish with a Digimap demo showing how to view overlays, download data, and check licences.
--------- Video Content ---------
00:00 Introduction and session plan
00:53 About Bluesky and Woolpert; national imagery/height programmes
02:52 What is the National Tree Map (coverage, features, attributes)
04:50 Why NTM matters vs open data and local inventories
06:39 How NTM is created (RGBI imagery, CHM, segmentation)
07:59 Use case: Biodiversity Net Gain (BNG) monitoring and audit
10:26 Use case: Urban planning, canopy equity and planting priorities
12:38 Evolving NTM: NTM Plus and NTM Risk (new attributes)
15:17 Species attribution KTP (deciduous/conifer, LiDAR, roadmap)
17:46 National Hedgerow Map (sub‑3 m vegetation, volumes, centre lines)
19:40 Digimap demo: view overlays, download data, and licence checks
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