# Pipeline and grid corridor monitoring with satellite data Operators monitor pipelines and grid corridors with satellite data in three ways: radar interferometry measures ground motion along the route, optical imagery shows vegetation encroaching on lines and pipes, and repeated images reveal third-party interference near the asset. Satellites cover long routes at regular intervals and point inspection teams to the sections at risk. ## How it works Pipelines and power lines are linear assets that can run across whole regions. Their size makes monitoring with in-situ means costly and challenging. Radar interferometry is increasingly used to assess ground deformation risk for large infrastructure such as pipelines, and C-band radar offers a balance between sensitivity and coverage that suits linear infrastructure [1]. For energy networks, Earth observation continuously detects ground movement and vegetation encroachment and supports natural hazard risk assessments, for example of subsidence, for existing and planned infrastructure [1]. Each of these questions calls for a different kind of data. ### Ground motion Radar satellites measure how the ground and the structures on it move over time, at millimetre scale [3]. The method, radar interferometry, has its own page: [monitoring ground motion with InSAR](https://leto.space/use-cases/ground-motion-insar/). ### Vegetation Earth observation is used to assess vegetation encroachment on energy networks [1]. Optical satellites such as Sentinel-2 record the corridor in 13 spectral bands [7], and images from successive dates show where vegetation has grown closer to a line or a pipeline route. ### Activity near the asset Earth observation also provides information on third-party interference along a pipeline network [1]. The method is change detection: images of different dates are compared, and new changes along the route are flagged for review. Satellite positioning complements the images. On above-ground pipelines, GNSS receivers monitor the stability of the structure; for underground pipes, GNSS supplies high-accuracy positions to ground-penetrating radar that maps leaks and other faults [1]. **Figure:** One corridor, three layers. Radar points are scarce in fields and forests, because changing vegetation and ploughing disturb the measurement. Illustrative map, not real data. ## Which data and satellites | Question | Data | Example | | ---------------------------------------------- | ---------------------------------------- | -------------------------------------------------------------- | | Is the ground moving along the route? | Radar interferometry (InSAR) | European Ground Motion Service, based on Copernicus Sentinel-1 | | Is vegetation encroaching on the line or pipe? | Optical images, repeated over time | Copernicus Sentinel-2 | | Is something changing next to the asset? | Optical or radar images of several dates | Copernicus or commercial missions | | Is methane escaping? | Atmospheric methane measurements | Public and private methane missions | | Is an above-ground section moving? | GNSS receivers on the structure | Your own sensors | The European Ground Motion Service provides ground motion data for Europe from Sentinel-1 radar images, free of charge [3]. Sentinel-2 delivers images at 10 m resolution in 13 spectral bands, with a revisit time of five days [7]. For gas networks, methane leaks are an additional topic, covered in the FAQ below. ## What you get A monitoring service along a corridor typically delivers: - maps and time series of ground motion for the measurement points along the route, with velocity, acceleration and seasonal movement per point [5] - an assessment of vegetation encroachment along the line or the pipeline route [1] - notices of changes next to the asset that may indicate third-party interference [1] - the zones at risk that need closer monitoring with equipment on site [1] As satellite capabilities improve, service providers become better at monitoring energy assets, which further reduces the need for air and ground patrols [2]. ## Limits **Limits** - **Inspection still happens on site:** Radar interferometry identifies zones at risk; those zones then need monitoring with additional equipment on site \[1]. Finding the cause and planning the repair remain tasks for your teams. - **Few radar points in fields and forests:** Changing vegetation and ploughed fields disturb radar interferometry \[6], so a buried pipeline across farmland or forest may have few measurement points nearby. The specified point densities per land cover type are listed under monitoring ground motion with InSAR. - **Clouds and fixed passes:** Optical satellites cannot see through clouds, while radar can \[8]. A satellite passes over a corridor only at set intervals, so a satellite service does not replace continuous sensors on critical points. ## How we help Corridor monitoring is worth examining where inspection is expensive or risks are hard to see from the ground. In a [strategy engagement](https://leto.space/consulting/strategy/) we check which sections and which risks justify a service. We then write the requirements: which questions, which update interval, which accuracy and which format for your asset management systems. [More on requirements and procurement](https://leto.space/consulting/procurement/) To see who offers such services, use [Spacegraph](https://leto.space/spacegraph/), our discovery platform. Its marketplace has a use-case category for infrastructure integrity. ## Related use cases - [Monitoring ground motion with InSAR](https://leto.space/use-cases/ground-motion-insar/): How radar satellites measure millimetre movement of the ground. - [Monitoring rail infrastructure](https://leto.space/use-cases/rail-infrastructure-monitoring/): Track condition and trackside vegetation from satellite data. - [Energy and utilities](https://leto.space/industries/energy-and-utilities/): All use cases for energy companies and utilities. ## Frequently asked questions ### What data is needed, and how often is it updated? You bring the route of the pipeline or line as a GIS layer and the risks you want to watch. The European Ground Motion Service, which covers Europe with free radar-based ground motion data, is updated once a year [4]. Sentinel-2 optical images have a revisit time of five days [7] and, like all Copernicus data, are free of charge [10], although clouds can hide a corridor on a given pass. If a yearly update is too slow for your purpose, that becomes a requirement for a dedicated service. ### Can satellites detect methane leaks from gas pipelines? Several satellite missions detect methane: Sentinel-5P provides daily global coverage, and commercial constellations such as GHGSat's track and quantify methane leaks from oil and gas sites [1]. The EU Methane Regulation of 2024 covers gas transmission and distribution and requires operators to carry out leak detection and repair surveys. It names satellites among the platforms for site-level measurement, which for a pipeline network covers segments of the network, and it tasks the European Commission with a global methane monitoring tool based on satellite data [9]. ### How do we start a pilot? Choose one corridor section with a known problem, for example a slope with suspected movement or a stretch that is costly to patrol, and agree how you will judge the result. Our [consulting overview](https://leto.space/consulting/) shows the path from the problem to operation, and an initial call is the quickest way to check whether your case is a good candidate. ## Sources 1. [EU Space Market Report 2026, Issue 1, EU Agency for the Space Programme (EUSPA), 2026-05-26](https://www.euspa.europa.eu/sites/default/files/documents/EU_Space_Market_Report_2026.pdf) 2. [EUSPA EO and GNSS Market Report, Issue 2, 2024, EU Agency for the Space Programme (EUSPA), 2024](https://www.euspa.europa.eu/sites/default/files/external/publications/euspa_market_report_2024.pdf) 3. [Tap into Europe in motion (European Ground Motion Service), European Space Agency (ESA), 2022-07-26](https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-1/Tap_into_Europe_in_motion) 4. [European Ground Motion Service (product page), Copernicus Land Monitoring Service, accessed 2026-10-06](https://land.copernicus.eu/en/products/european-ground-motion-service) 5. [European Ground Motion Service (EGMS): Product Description and Format Specification, version 3.0, Copernicus Land Monitoring Service, European Environment Agency (EEA), 2025-08-07](https://library.land.copernicus.eu/products/European_Ground_Motion_Service_Product_Description_v3.html) 6. [European Ground Motion Service (EGMS): Algorithm Theoretical Basis Document, version 4, Copernicus Land Monitoring Service, European Environment Agency (EEA), 2025-08-07](https://library.land.copernicus.eu/products/European_Ground_Motion_Service_Algorithm_Theoretical_Basis_Document_v4.html) 7. [Sentinel-2 (mission page), European Space Agency (ESA), accessed 2026-10-06](https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-2) 8. [Sentinel-1 mission… did you know?, European Space Agency (ESA), 2025-11-03](https://www.esa.int/Applications/Observing_the_Earth/Copernicus/Sentinel-1/Sentinel-1_mission_did_you_know) 9. [Regulation (EU) 2024/1787 of 13 June 2024 on the reduction of methane emissions in the energy sector, European Union, EUR-Lex, 2024-06-13](https://eur-lex.europa.eu/eli/reg/2024/1787/oj/eng) 10. [Copernicus, European Commission, DG Defence Industry and Space (EU Space portal), accessed 2026-10-07](https://eu-space.europa.eu/earth-observation/copernicus) Page: