COLD2
Carbon Oxide Laser Detector 2

COLD2 is an automated, portable, mid-infrared quantum cascade laser gas analyzer spectrometer for measuring insitu carbon monoxide mixing ratios from the ground up to the lower stratosphere. The COLD2 instrument was designed to be suitable for easy installation on different platforms and capable of operating completely unattended, without the presence of an operator. It has a small size (80 × 25 × 41 cm 3 ), light weight (23 kg), low power consumption (typically 85 W) and does not require being pressurized onboard an aircraft. In-flight carbon monoxide (CO) measurement sensitivity is on the order of 1 to 2 ppbV with a time resolution of 1 second.