Tag: Satellite Imagery
-
From Snapshot Surveys to Change-Driven Monitoring: How Satellite Remote Sensing Helps Track Coastal and Marine Habitat Change
A coral heat-stress map triggers an alert. That is when the truly difficult questions begin: Which reef areas may already have been affected? Where should field teams go first? Once a survey is complete, how should changes over the following weeks continue to be tracked? According to an October 13, 2026 report by the Philippine…
-
ADIPEC 2026 Highlights Energy Delivery Resilience: How Satellite Monitoring Supports Pipeline Corridor Risk Management
ADIPEC 2026 opened in Abu Dhabi on November 2. In his opening address, Sultan Al Jaber, UAE Minister of Industry and Advanced Technology and ADNOC Managing Director and Group CEO, called on the energy industry to rethink how it builds, secures and delivers supply. A central theme across the opening address and conference discussions was…
-
Is Sentinel-2 Detailed Enough for Small Fields? How to Check Before Monitoring
Sentinel-2 can support monitoring of some small agricultural fields, but field area alone cannot tell you whether it is detailed enough. A compact parcel may contain useful interior pixels, while a narrow parcel of the same area may be dominated by boundaries, neighbouring crops and field margins. The right test is whether the imagery provides…
-
How to Check Satellite Imagery Quality Before Accepting Delivery
A satellite image can look sharp and still be unsuitable for your project. A cloud may cover the only facility you need to inspect, a missing-data strip may cross your pipeline corridor, or a visually convincing colour image may lack the spectral measurements required for analysis. Satellite imagery quality control should answer two questions: does…
-
How Satellite Data and AI Are Transforming Crop Insurance in China
What does computing in space actually change for people on the ground? Crop insurance offers a practical starting point. Satellite imagery, artificial intelligence and digital field records are changing how insurers identify farmland, assess damage and help farmers reduce losses. The value becomes clearer when individual projects are examined in detail: where the data comes…
-
How to Define a Satellite Imagery AOI for Pipeline and Power-Line Corridors
A pipeline or power-line network usually starts as a set of centerlines in a GIS. Turning those lines into a satellite imagery area of interest (AOI) requires decisions about what to monitor, how much surrounding land to include, and which geometry the imagery supplier can accept. A polygon that passes an upload check can still…
-
Can Stereo Satellite Imagery Produce a Bare-Earth Terrain Model?
Stereo satellite imagery can support bare-earth terrain mapping where enough ground is visible, but it does not automatically reveal the land beneath trees or buildings. Its first elevation product is usually a digital surface model (DSM), representing the surfaces the cameras can see. Producing a reliable digital terrain model (DTM) requires identifying ground observations, handling…
-
Can You Use Pansharpened Imagery for NDVI and Land Cover Classification?
Yes, pansharpened imagery can be used for land cover classification and, under suitable conditions, NDVI analysis. Whether it should be used depends on the source bands, fusion method and evidence that the resulting product meets the requirements of the task. A sharper image can make roads, tree crowns and field boundaries easier to distinguish. That…
-
How to Measure Shoreline Change Without Mistaking Tides for Erosion
A shoreline can move landward between two satellite images even when the beach has lost no sediment. A higher tide, stronger wave run-up or a different position within the seasonal beach cycle can all change where water meets land. Measuring coastal change therefore requires more than extracting a clean boundary. The measurement must follow a…
-
Can Satellite Imagery Detect Oil Spills on Land?
Satellite imagery can help identify some oil spills on land, particularly where contamination is exposed, sufficiently extensive, and observable in suitable spectral bands. It can also reveal surface changes that warrant investigation. But a dark patch near an oil well, an unusual soil color, or declining vegetation does not by itself confirm petroleum contamination. For…