Analyzing Simulation Results & Charts

First published: October 2026
Last updated: October 23, 2026

[!NOTE] Once a simulation run completes, the Simulation Analysis panel provides multiple interactive visualization tabs to inspect time series behavior, storm intensity distributions, and temperature envelopes.

1. The Daily Time Series Viewer (Hyetograph & Thermograph)

The primary visualization tab displays continuous synthetic daily records: - Upper Chart (Precipitation Hyetograph): Vertical bars representing daily precipitation depths. - Wet days are displayed with blue bars. - Notice the natural clustering: wet days often occur in sequences of 2 to 4 consecutive days, accurately reflecting storm front behavior. - Lower Chart (Temperature Thermograph): Two synchronized lines representing daily maximum ($T_{\max}$) and minimum ($T_{\min}$) temperatures. - Notice that cloudy wet days exhibit lower daytime peaks than clear dry days. - Time Slider & Zooming: You can zoom in to inspect a specific single year, or zoom out to view an entire 50-year sequence.

2. Monthly Summary Comparisons

Switch to the Monthly Summary tab to verify that the synthetic series preserves seasonal climate normals: - Historical vs. Synthetic Monthly Rainfall: Compares the historical average monthly depths (gray bars) against the synthetic run's monthly totals (blue bars). - Wet Day Count: Compares the historical number of rainy days per month against the synthetic run. - In a long simulation (e.g. 30+ years), the synthetic monthly averages will closely align with the historical bars, confirming that the Markov transition probabilities are operating accurately.

3. Cumulative Mass Curves & Drought Sequences

The Cumulative Rainfall tab plots total rainfall over time: - The slope of the line indicates the long-term precipitation rate. - Periods of flatter slope represent extended drought conditions. - Steep upward steps represent wet years or heavy storm periods. - This chart is especially useful for reservoir yield modeling, showing whether your water storage would survive the driest multi-year period generated in the simulation.

4. Multi-Realization Envelope (P10 - P50 - P90)

If you ran multiple realizations (e.g., 20 realizations of a 30-year horizon): - The chart displays a median (P50) line representing expected typical conditions. - Shaded bands indicate the P10 (10th percentile - dry bound) and P90 (90th percentile - wet bound) envelopes. - This allows water managers to evaluate infrastructure performance under both extreme wet and extreme dry conditions simultaneously.

5. Exporting Simulated Data

When you are satisfied with the simulation results, you can export the data for use in external engineering tools: - Download CSV: Click Export Data → CSV File to download the complete daily time series containing columns: [Date, Year, Month, Day, Precip_Depth, Tmax, Tmin]. - Download Excel: Generates a formatted .xlsx workbook with built-in monthly summary pivot tables. - Direct Copy: Copy any summary table or chart data directly to your computer clipboard.