Download the UFO Dataset | View the Python Notebook
What: Annual counts of UFO reports in the United States from the dataset.
Encodings: The x-axis encodes year (temporal), and the y-axis encodes count (quantitative).
Color Map: No color encoding is used here to focus purely on the trend over time.
Transformations: The date_time field was parsed into timestamps and filtered to U.S. reports, then aggregated by year.
What: Latitude and longitude positions of UFO sightings in the United States. Circle size represents duration, and color encodes the UFO shape.
Encodings: x = longitude, y = latitude, size = duration (capped), color = shape.
Color Map: Different UFO shapes are represented with distinct colors to help distinguish visual patterns.
Transformations: The dataset was filtered to U.S. records, duration values were capped to avoid distortion, and timestamps were parsed.
Interactivity: A year slider allows users to explore sightings across different years. Hover tooltips show details, helping users identify spatial-temporal patterns.