Entries by Sergei Rodionov

Measuring Cloud Oktas from Outer Space

This article describes the approach undertaken by data scientists at Axibase to calculate cloud cover using satellite imagery from the Japanese Himawari 8 satellite. Today, cloud cover is measured using automated weather stations, specifically ceilometers and sky imager instruments. The ceilometer is an upward pointed laser that calculates the time required for the laser to reflect […]

AWS EC2 T2 instances: 700 seconds of fame

There is no shortage of innovation going on in cloud pricing models, ranging from Google’s preemptible virtual machines to pay-by-the-tick code execution services such as AWS Lambda. The overall trend is that pricing gets ever more granular and complex and this applies both to emerging pay-as-go services as well as to mainstream virtual machines. As […]