Average rainfall 2001-2016, global tropics

Map: Average rainfall 2001-2016, global tropics

spectro: Open source spectral data

Thomas Gumbricht bio photo By Thomas Gumbricht

Introduction

https://spectralworkbench.org runs a web based Open Source library for spectral characterization using “DIY material analysis”. “Use a homemade spectrometer to scan different materials, and contribute to an open source database.” Spectralworkbench has video introduction on Youtube.