Weather7 min read
Reading the air above a hot road
A distant road can seem wet as light crosses the air near its surface. Thermometers, wind and viewing angle reveal different parts of that small weather system.
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Solar energy7 min read
What a solar panel rating leaves to the weather
The wattage on a solar module is a measurement at agreed test conditions. Sun angle, cloud, cell temperature, shade, wiring and the inverter determine what reaches a meter over time.
Weather5 min read
What a rain gauge misses on a windy day
A rain gauge counts the water that reaches its opening. Wind bends the path of drops around the instrument, so shape, height and site exposure can change the recorded total even between neighboring gauges.