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  • Product Sheet: Infrastructure Monitoring

In This Space

Infrastructure Planning & monitoring

 

Exposed critical infrastructure, Shodra, Albania 2014 (Source: GeoVille)

PRODUCT DESCRIPTION

Category

Component products

Land Use

 

  • Land cover and land use characterisation
  • Equipment mapping and status
  • Building inventory
  • Pipeline corridor status
  • Roads status
  • Urban area/settlement map
  • Soil sealing
  • Transport network
  • Surface and historic surface deformation monitoring
 

Uses

  • Logistics planning and operations - Facility siting, pipeline routing and roads development
  • Logistics planning and operations - Support to surveying crews for planning surveys and H&S
  • Subsidence monitoring - Infrastructure monitoring

Geo-information requirements

  • Detailed land cover information
  • Critical habitat identification

Description

This service provides information on infrastructure and its surrounding environment by characterising artificial landscape elements. It provides infrastructure information on licence/project scale (up to 1:5000) based on high to very high resolution satellite imagery.

This product includes all physical infrastructures such as buildings (e.g. hospitals, schools and power stations), roads, railways, power cables, pipelines, airports or train stations. Infrastructure mapping is detailed land use mapping with a specific thematic focus.

Infrastructure maps can be created from optical or radar satellite data, but they often require additional reference information to characterise the actual use of a specific building, or the hierarchical level of roads. The precision and detail of infrastructure information is dependent on the input data resolution.

For precise land use information additional in-situ information is mandatory.

For monitoring of infrastructure a satellite data based baseline mapping of infrastructure is conducted. Afterwards, further satellite data is used to monitor infrastructure and infrastructural changes over time.

Satellites enable the creation of precise surface elevation maps as well as the detection of otherwise invisible ground movement on the scale of just a few millimetres, using radar interferometry. Infrastructure at risk of large-scale subsidence, landslides or faulting can be flagged and avoided by e.g. route planners. The result is improved evaluation of costs and planning of site operations.

For planning of network infrastructure such as power cables or road/rail transport connections, information content may also include:

  • Characterisation of habitats further from the operations site
  • Domestic  constructions in the region of interest
  • Existing transport infrastructure

This product delivers PDF maps or raster/vector digital files that delineate and identify:

  • Existing infrastructure and their changes
  • Exposed critical infrastructure
  • Ground displacement in relation to existing and planned infrastructure

Known restrictions / limitations

In the inner and outer tropics frequent cloud cover can be an issue for the production of the maps but may be mitigated by combing radar and optical satellite images. However, there are some features which will be close to impossible to be mapped using radar data. The achievable size of mapped objects is depends on the sensor used and its resolution.

Example: Mapping of small roads with a width of 5 m using 5 m RapidEye data (HR1) is extremely challenging, thus VHR2 data with a resolution below 2 m are needed.

Historical ground movement:

Historical analyses can only be performed where SAR data was acquired. Although a good coverage exists over many areas worldwide, some areas do not have large historical SAR data archives. Furthermore, the density of measurement points identified over areas of vegetation decreases (e.g. pipelines under canopy cover).

Lifecycle stage and demand

Pre-licensing

Exploration

Development

Production

Decommissioning

 

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Exploration:

  • Information to select an appropriate development site for an onshore facility. The site needs to be accessible, safe, connect to local O&G infrastructure (if any) and have limited impact on the environment.

Development and Decommissioning:

  • Information on infrastructure to efficiently and timely plan development sites, as e.g. some selected roads could be inappropriate for certain vehicle types. Route choice may also affect convoy speed and thus have a knock on delay of subsequent operations.
  • Information to identify infrastructure suitable for HGVs and estimating travel time for operations is difficult and often inaccurate

Geographic coverage and demand

Global coverage and demand.

CHALLENGES ADDRESSED

OTM:037 Identification of road or track for logistics planning
OTM:039 Selection of development sites
OTM:049 Identifying unregulated overhead power cables

 

HC:3201 Assessment of infrastructure placement and effects to the surrounding environment
HC:4306 Assess and manage forest fire risk to facilities and infrastructure
HC:5306 Assessing terrain stability for infrastructure planning in permafrost environments
HC:5307 Assess coastal environment for infrastructure planning

PRODUCT SPECIFICATIONS

Input data sources

Optical: VHR1, VHR2, HR1

Radar: VHR1, VHR2, HR1

Obligatory supporting data:

  • Spatial thematic data (use information)

Supporting data:

  • Existing land cover information

Spatial resolution and coverage

Spatial resolution: 0.5 - 10 m pixel size

Minimum Mapping Unit (MMU)

n/a (the product is directly based on the input data; the smallest unit is one pixel)

Accuracy / constraints

Thematic accuracy: 80-90%

Spatial accuracy: The goal would be one pixel, but depends on reference data

Accuracy assessment approach & quality control measures

Stratified random points sampling approach utilizing VHR reference or other geospatial in-situ data. Statistical confusion matrix with user’s, producer’s accuracy and kappa statistics for mapped infrastructure.

Frequency / timeliness

Observation frequency: The frequency is constrained by satellite revisit and acquisition, but also processing requirements. While the minimum frequency is technically driven by the revisit cycle of the satellite, the maximum frequency is defined be the customer. Depending on the requirements of the customer the best suitable satellite sensor has to be chosen regarding spatial/spectral resolution as well as revisit frequency. Most of the time, long-term changes are detected in 2 years or longer intervals (frequency can be lower depending on demand).

Timeliness of deliverable: Depending on size of the mapped area, resolution, MMU and number of mapped classes.

Availability

Freely available or commercially acquired is depending on the sensor selected.

Delivery / output format

Data type:

  • Vector formats
  • Raster formats (depending on customer needs)

File format:

  • Geotiff or shapefile (standard - any other OGC standard file formats)

 Download product sheet.

 

Lead Author:GeoVille
Peer Reviewer:Hatfield Consultants

Author(s):

Maria Lemper; Jan Militzer

Document Title:

Infrastructure Planning & monitoring

# of Pages:

5

Circulation:

Internal – Project consortium and science partners

 

External – ESA

 

 

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