CLIMATE TRENDS EXPLORER

Climate Trends Explorer is a lightweight scientific tool that transforms geographic coordinates into long-term climate signals. By combining historical temperature and rainfall data with linear trend analysis, it reveals whether a location is warming, cooling, or shifting in precipitation patterns over time. Designed for field use and embedded within the FAULT//LINE ECHOES platform, it provides a simple but rigorous way to compare lived climate perceptions with measurable environmental change.

The data used in Climate Explorer comes from the Open-Meteo historical climate archive, which is derived from global reanalysis datasets that merge satellite observations, weather stations, and atmospheric models into a physically consistent reconstruction of past climate conditions (ERA5 reanalysis produced by the European Centre for Medium-Range Weather Forecasts). The data is provided at a spatial resolution of approximately 0.25° (~25 km grid), meaning each value represents an averaged climate signal over that area rather than a single point measurement. Beyond yearly mean temperature and total precipitation, the analysis incorporates standardized climate indices following the ETCCDI climate indices framework. These include hot extremes (TX90p), defined as the percentage of days when the daily maximum temperature exceeds the 90th percentile of the 1995–2024 baseline, and cold extremes (TN10p), defined as the percentage of days when the minimum temperature falls below the 10th percentile. Hydrological stress is further characterized using the Standardized Precipitation Index (SPI), which quantifies deviations in annual rainfall relative to the baseline mean and variability, as well as extreme precipitation indices (R95p and R99p), representing the contribution of rainfall from the most intense events above the 95th and 99th percentiles. A linear regression is applied to each yearly time series to extract long-term trends, enabling the detection of gradual shifts in average conditions as well as changes in the frequency and intensity of climatic extremes over multi-decadal periods.

TAKE A LOOK AT HOW CLIMATE CHANGE AFFECTS YOUR LOCATION