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Tropical South America 15s 70w

15°S, 70°W · Sam Francis · 2026-07-06

tropical-south-america-15s-70w weather artwork
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Creative Rationale

Above the high Andes of Bolivia and Peru, where extreme altitude creates an otherworldly atmospheric environment, the data reveals a fascinating meteorological portrait. The exceptionally low sea-level pressure of 638.3 Pa with its steep gradient suggests we're witnessing conditions at extraordinary elevation, while the gentle 2 m/s wind from the northwest and high humidity create an almost meditative atmospheric state. This translates into a Sam Francis-inspired composition where saturated color pools gather densely at the canvas edges—deep ultramarines and cadmium reds responding to the low pressure—while the calm wind allows for expansive luminous white space to dominate the center, punctuated by delicate splatters that barely venture inward from their chromatic reservoirs.

Atmospheric Data

Date
2026-07-06
Location
15°S, 70°W (Tropical South America 15s 70w)
Pressure
638.3 hPa (gradient: 335.78)
Wind
2 m/s from 342°
Temperature
2.8°C (anomaly: 15.8°C)
Humidity
77%
Visual Interest Score
26.2

Technical Details

Model
Claude Sonnet 4 via Amazon Bedrock
Artist Inspiration
Sam Francis
Weather Source
Open-Meteo API (GFS model)
Format
SVG (2048x1024 viewBox) + PNG
Generated
2026-07-06T06:16:38.579823+00:00
Run ID
2026-07-06-060044

License: CC BY-NC-ND 4.0. Attribution: James Tannahill / art.jamestannahill.com. No commercial use or derivatives without permission.