Draft Details
- Airborne lidar data acquisition (New standard)...
- Draft Standard
- Legal Notice for Draft Standards
- Preface
- 0 Introduction
- + 1 Scope
- 1.1 Inclusions
- 1.2 Users
- 1.3 Applicability
- 1.4 Terminology
- 2 Reference publications
- + 3 Definitions, abbreviations and symbols
- 3.1 Definitions
- 3.2 Abbreviations
- 4 General Requirements
- + 5 Project planning
- + 5.1 Project method
- 5.1.1 General
- 5.1.2 Flight planning
- 5.1.3 Survey control
- 5.1.4 Ground truthing
- 5.1.5 Data processing
- 5.1.6 Quality control
- 5.1.7 Schedule
- 5.1.8 Deviation from the project methodology
- + 5.2 Instrumentation
- 5.2.1 General
- 5.2.2 Sensor instrument
- 5.2.3 GNSS
- 5.2.4 IMU
- 5.2.5 Deviations from the proposed instrumentat...
- + 5.3 Data collection planning
- 5.3.1 Area of interest
- 5.3.2 Data collection area of interest
- 5.3.3 Discrete returns
- 5.3.4 Intensity
- 5.3.5 Swath overlap
- 5.3.6 Reference control
- 5.3.7 Cross-tie lines
- 5.3.8 Scan angles
- + 6 Data collection
- + 6.1 Conditions
- 6.1.1 General
- 6.1.2 Atmospheric conditions
- 6.1.3 Surface
- 6.1.4 Tides
- 6.1.5 Survey
- 6.1.6 Temporal
- 6.1.7 Considerations, limitations and assumptio...
- + 6.2 Collection pulse density
- 6.2.1 General
- Table 2
- Table 3
- 6.2.2 Other considerations, limitations and ass...
- + 6.3 Data collection theory
- 6.3.1 General
- Table 4
- Table 5
- + 7 Data processing and management
- + 7.1 Data file format
- 7.1.1 Data storage
- 7.1.2 Pulse data record
- 7.1.3 Overlap and overage
- 7.1.4 Withheld pulses
- 7.1.5 Swath identification
- 7.1.6 Georeference
- 7.1.7 Open access
- 7.1.8 Compression
- 7.1.9 GPS time
- 7.1.10 Measurement units
- 7.1.11 Other considerations, limitations and as...
- + 7.2 Point cloud classification
- 7.2.1 General
- 7.2.2 Requirements
- 7.2.3 Other considerations, limitations and ass...
- + 7.3 Coordinate reference system
- 7.3.1 General
- 7.3.2 Requirements
- 7.3.3 Other considerations, limitations and ass...
- + 7.4 Point families
- 7.4.1 Requirements
- + 7.5 Tiling scheme
- 7.5.1 General
- 7.5.2 Tiling scheme requirements
- 7.5.3 Derivative products
- + 8 Data validation
- 8.1 General
- + 8.2 Positional accuracy
- 8.2.1 General requirements
- 8.2.2 Number of checkpoints
- 8.2.3 Accuracy of checkpoints
- 8.2.4 Non-vegetated Vertical Accuracy (NVA)
- 8.2.5 Vegetated Vertical Accuracy (VVA)
- 8.2.6 Horizontal Accuracy (HA)
- 8.2.7 Other considerations, limitations and ass...
- + 8.3 Spatial distribution and regularity
- 8.3.1 General
- 8.3.2 Spatial distribution and regularity
- 8.3.3 Other considerations, limitations and ass...
- + 8.4 Pulse density check
- 8.4.1 General
- 8.4.2 Pulse density grid
- 8.4.3 Evaluation
- 8.4.4 Other considerations, limitations and ass...
- + 8.5 Data voids
- 8.5.1 Description
- 8.5.2 Data voids
- 8.5.3 Other considerations, limitations and ass...
- + 8.6 Point cloud classification accuracy
- 8.6.1 Description
- 8.6.2 Assessment
- 8.6.3 Other error types
- 8.6.4 Other considerations, limitations and ass...
- + 8.7 Relative accuracy check
- 8.7.1 General
- 8.7.2 Relative vertical accuracy – Intraswath (...
- 8.7.3 Relative vertical accuracy – Intraswath (...
- 8.7.4 Project deliverables
- + 8.8 Deliverable items
- + 8.8.1 Project reporting
- 8.8.1.1 Project planning
- 8.8.1.2 Progress reports
- 8.8.1.3 Project deliverables
- 8.8.1.4 Data inventory list
- + 8.8.2 Field data
- 8.8.2.1 Survey control
- 8.8.2.2 Flight trajectory
- 8.8.2.3 In-situ validation
- 8.8.2.4 Metadata
- + 8.8.3 Lidar data
- 8.8.3.1 Point cloud
- 8.8.3.2 Index file
- 8.8.3.3 Raw data
- 8.8.3.4 Metadata
- 8.8.3.5 Supplemental information on the lidar a...
- 8.8.3.6 Spatial distribution and regularity
- 8.8.3.7 Relative accuracy
- 8.8.3.8 Pulse density
- 8.8.3.9 Data voids
- 8.8.3.10 Point cloud classification
- 8.8.3.11 Positional accuracy
- 8.9 Raw lidar data
- + Annex A (Informative)
- A.1 General
- + A.2 Data acquisition considerations
- A.2.1 Low flow conditions
- A.2.2 Stable flows and levels
- A.2.3 Leaf-off conditions
- A.2.4 Acquisition parameters
- A.2.5 Orthophoto acquisition
- + A.3 Data quality considerations
- A.3.1 Data density and accuracy
- A.3.2 Classification
- A.3.3 Topo-bathymetric lidar
- + Annex B (informative)
- B.1 General
- B.2 Data considerations
- B.3 Acquisition parameter specifications and co...
- Table B.2
- Table B.3
- + Annex C (informative)
- C.1 General
- C.2 Data acquisition recommendations and consid...
- + Annex D (informative)
- D.1 General
- D.2 Data acquisition recommendations and consid...
- D.3 Data processing considerations
- D.4 Pulse density for feature extraction
- D.5 Additional considerations
- + Annex E (informative)
- E.1 General
- E.2 Topo-bathymetric lidar general principles
- E.3 Benefits of topo-bathymetric Liday for floo...
- E.4 Accuracy standards
- Table E.1
- Table E.2
- E.5 Acquisition parameters considerations
- + E.6 Guidelines for a topo-bathymetric Liday pro...
- E.6.1 General
- E.6.2 Project planning and collection
- E.6.3 TBL signal penetration considerations
- E.6.4 Data processing and management
- E.6.5 Data validation
- E.6.6 Deliverables
- + Annex F (informative)
- F.1 General
- F.2 Definitions
- F.3 Vendor information
- F.4 Scope, schedule and deliverables
- F.5 Insurance
- F.6 Safety
- F.7 Termination clause
- F.8 Dispute resolution
- F.9 Waiver
- F.10 Deliverable review period
- F.11 Payment terms
- F.12 Subsuppliers and subcontractors
- F.13 Force majeure
- F.14 Entire agreement
- F.15 Performance of services
- F.16 Permits
- F.17 Compliance with law
- F.18 Expediting
- F.19 Warranty
- F.20 Governing laws
- F.21 Indemnity
- F.22 Confidentiality
- F.23 Successors and assignments
- F.24 Data ownership
- + Annex G (informative)
- + G.1 Guidance for lidar point cloud classificati...
- G.1.1 Ground, class 2
- G.1.2 Buildings, class 6
- G.1.3 Low point (Noise), class 7
- G.1.4 Water (optional), class 9
- G.1.5 Bridge decks, class 17
- G.1.6 High noise, class 18
- G.2 Alternative approach for validation of poin...
1.1 Inclusions
This Standard provides requirements, recommendations, and guidance concerning the following elements of airborne lidar data acquisition:
a) project planning
b) data collection
c) data processing and management
d) data validation
e) project deliverables
1.2 Users
Users of this Standard include department managers, project coordinators, geomatics experts, natural resource managers, engineers, and planners both within and outside of government. The document assumes that users have a basic understanding of airborne lidar technology and data, including terminology and data structure.
1.3 Applicability
This Standard is to be used as a resource for the acquisition of base elevation data from airborne lidar data undertaken across Canada.
1.4 Terminology
In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements.
Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
You may comment on any section of this document by clicking the “Submit Comment” link at the bottom of the relevant section.