Satellite Change Report See what changed, where it changed and what the imagery can support.
A source-documented comparison of satellite imagery across two agreed dates for one area of interest. You receive clear before-and-after maps, a concise interpretation of visible change and an honest account of resolution, cloud and evidence limitations.
BEST FOR
Environmental consultants, agriculture and land management teams.
Evidence for a decision, with the limitations left in
Satellite imagery can reveal changes in vegetation, water, exposed ground and built surfaces across places that are difficult to inspect repeatedly on foot. The useful output is not simply two pictures: the acquisition dates, source, processing choices and detectability of the change all matter.
This package frames a specific change question, selects suitable available imagery and applies a consistent comparison method. The report distinguishes observable change from interpretation, so the results can be used appropriately alongside your local knowledge and other evidence.
Compare like with like
Consistent extents, symbology and processing make the two acquisition dates readable as a genuine visual comparison.
Locate material change
Analysis highlights areas that warrant attention and gives your team a spatial starting point for investigation or validation.
Understand the caveats
Source, date, resolution, cloud and method notes are presented with the findings rather than buried in technical appendices.
What's included
A bounded analysis for one area of interest and one agreed pair of acquisition windows.
Area and change-question definition
Confirm the area of interest, event or comparison window, expected change and the decision the report needs to inform.
Imagery source selection
Identify suitable available satellite scenes, normally from open imagery archives where fit for purpose, and document the selected acquisitions.
Image preparation
Clip, align and prepare the before-and-after imagery, accounting for projection, visual consistency and obvious cloud or quality constraints.
Change analysis
Apply a method suited to the agreed question—such as visual comparison or spectral change—to identify patterns visible at the source imagery’s resolution.
Cartography and written interpretation
Produce clear before-and-after maps with scale, dates and sources, accompanied by concise observations, limitations and recommended follow-up.
Analyst walkthrough
A handover call to explain what the maps show, how the comparison was made and where further ground evidence is needed.
The complete handover
You know what arrives at the end, what is needed at the start and which requests sit outside the published scope.
DELIVERABLES
A3 · 1 week- 01
Satellite change summary report
A PDF containing the question, method, findings, limitations and practical next steps in language suitable for technical and non-technical readers.
- 02
Before-and-after map set
High-resolution PDF and PNG maps with a common extent, acquisition dates, scale, legend and imagery attribution.
- 03
Derived change outputs
Where the chosen method produces a change layer, the output is supplied in a standard GIS format for use in QGIS or ArcGIS.
- 04
Source and method note
A compact record of the imagery, dates, processing steps and quality considerations needed to interpret or reproduce the comparison.
What I need from you
- One area of interest supplied as a boundary, coordinates or an unambiguous map markup.
- The two dates, event window or seasonal periods you want compared.
- A description of the change you expect and how you intend to use the findings.
- Any relevant site observations, existing mapping or context that should inform the interpretation.
- A reviewer available for the handover and any early decision about imagery suitability.
FIXED PRICE · CLEAR LIMITS
Scope boundaries
- The package covers one area of interest and one agreed before-and-after comparison; additional periods, sites or ongoing monitoring are separately scoped.
- Commercial very-high-resolution imagery, ground-truth collection and specialist field survey are not included in the published price.
- The report is remote-sensing decision support, not a cadastral survey, legal determination or guarantee that every physical change is detectable.
- Cloud, haze, shadows, seasonal differences and sensor resolution can limit the result; these constraints are assessed before analysis and disclosed in the report.
One week from question to mapped evidence
The one-week window starts once the area, comparison dates and change question are agreed and suitable source imagery is identified.
Frame the comparison
Confirm the area, dates and expected change, then assess available imagery for coverage, resolution and quality.
Prepare the imagery
Process the selected scenes into a consistent comparison and flag any material cloud, shadow or seasonal limitations.
Analyse and map
Run the agreed change method, review the results against the source imagery and produce the before-and-after map set.
Report and explain
Deliver the report and digital outputs, then walk through the evidence, caveats and recommended next steps with your team.
Questions before you book
Practical answers about this package. Anything else can be covered in the free call.
Q1 Which satellite imagery will you use?
The source depends on the question, location and dates. Open imagery such as Sentinel-2 is often a suitable starting point, but I confirm the actual sensor, acquisition dates and resolution before analysis rather than assuming one source fits every job.
Q2 Can you compare two exact dates?
Only where usable archive imagery exists for those dates. If cloud or acquisition gaps prevent an exact match, I will propose the nearest suitable scenes or an agreed acquisition window and make those dates explicit on every map.
Q3 Will the report detect every change on the ground?
No remote-sensing method can promise that. Small, obscured or spectrally subtle changes may not be detectable at the available resolution. The report describes the method’s sensitivity and separates observed image change from confirmed on-ground causes.
Q4 Can the outputs be used in our own GIS?
Yes. Map images and the source and method note are supplied as standard, and any derived change layer produced by the agreed method is provided in a common GIS format.
Q5 Can you set up recurring monitoring instead?
Yes, but recurring acquisition, processing and reporting is a different scope. We can use this first report to establish a useful baseline and then quote a repeatable monitoring workflow.
Continue through the schedule
Two related options, or compare all six packages.
Need to establish what changed?
Bring the location, the relevant dates and the decision you need to make. The free call will test whether satellite evidence is suitable before a report is commissioned.