Spire Plans To Use Tiny Satellites For More Accurate Weather Forecasts

Zothecula writes Weather forecasting is a notoriously inexact science. According to San Francisco-based tech startup Spire, this is partially because there are currently less than 20 satellites responsible for gathering all of the world's weather data – what's more, some of the older ones are using outdated technology. Spire's solution? Establish a linked network of over 100 shoebox-sized CubeSats, that will use GPS technology to gather 100 times the amount of weather data than is currently possible. The first 20 of those satellites are scheduled to launch later this year.

Comments

Re:I work in Earth-observing satellite ground syst

[ShanghaiBill]

The last I looked, the state of remote-sensing algorithms for limb profiling is something between bad and "are you kidding?".

But they are not doing much "remote sensing". All they are doing is recording when a GPS signal is received. That's it. That shouldn't be too hard. The delay between when the GPS should have been received, and was actually received, will tell them the index of refraction of the atmospheric cord it passed through, and from that, a ground computer can calculate the humidity, temperature, and pressure.