PRP

The portable radiation package (PRP) is an instrument suite to collect atmospheric radiation measurements on a moving platform such as ships at sea where proper exposure is remote and difficult, the platform is in motion, and azimuth alignment is not fixed. The instrument suite consists of a precision spectral pyranometer (PSP), precision infrared radiometer (PIR), and continuously rotating shadowband radiometer.

The PRP approach is completely modular, both in hardware and software. Each sensor input is treated as a separate serial stream into the data collection computer. In this way the operator has complete access to each component of the system for purposes of error checking, calibration, and maintenance. The resulting system is reliable, easy to install in complex situations, and amenable to upgrade.

• Longwave broadband downwelling irradiance
• Shortwave broadband diffuse downwelling irradiance
• Shortwave broadband direct normal irradiance
• Shortwave broadband total downwelling irradiance
• Shortwave narrowband total downwelling irradiance
• Navigation variables