THE EARTH IS CHANGING.
LET'S DISCOVER HOW.
Explore NASA Earth observations, uncover environmental trends, and investigate the science behind a changing planet. TerraSignal retrieves real data, tests it with established statistical methods, and tells you honestly when the evidence is not there.
A scientific discovery laboratory, not another environmental dashboard.
Most "climate dashboards" draw a line and call it a trend. TerraSignal does the opposite: it fetches the observations, validates them, documents every transformation, and then runs the statistical tests that Earth-science literature actually uses — Mann-Kendall, Sen's slope, Pettitt change-point detection, seasonal decomposition and false-discovery-rate control.
Every number you see is traceable to a provider response, an aggregation rule, or a published formula. When evidence is thin the platform says so: a p-value of 0.054 is reported as "not significant at α = 0.05", never rounded into a discovery.
Analysis runs on live data from NASA POWER, discovery uses the NASA CMR catalogue, and context comes from NASA GIBS imagery. Sign-in is not required, and no provider credential ever reaches the browser.
No simulated datasets are ever presented as NASA observations.
p-values, confidence intervals, effect sizes and completeness.
The native 0.5° × 0.625° grid cell is drawn on every map.
PDF, CSV, JSON, GeoJSON and Markdown with provenance.
- NASA POWER / LaRC — POWER Daily: reanalysis-derived model output (not a direct satellite observation).
- NASA POWER / LaRC — POWER Monthly: reanalysis-derived model output.
- NASA EOSDIS / CMR — CMR: metadata catalog (no measurements returned).
- NASA EOSDIS / GIBS — GIBS: visualisation imagery (not an analysis dataset).
Data courtesy of NASA POWER (NASA Langley Research Center), NASA EOSDIS CMR and NASA GIBS. TerraSignal is submitted to the NASA Space Apps Challenge 2026 as an independent project.
Everything is wired to live data
Choose a place, a variable set and a period, then run the full pipeline in seconds.
Verified NASA datasets with coverage, resolution, units and access method — plus a live CMR search.
Watch discovery → validation → preprocessing → analysis-ready, with real counts and warnings.
Daily, monthly, seasonal and annual views with Sen's slope, confidence bands and anomaly markers.
NASA GIBS imagery, time slider, clickable study areas and the true analysis cell.
Findings ranked by significance, effect size, data quality and relevance — never p alone.
Two synchronised series with a formal test of the difference between slopes.
Twelve-section scientific report with provenance; export PDF, CSV, JSON, GeoJSON.
Installs on Android and desktop, keeps saved summaries readable offline, updates cleanly.