Ground based passive sensors such as Pandora, Cimel and Brewer played a major role in improving our understanding of the atmospheric chemistry by monitoring " in real time" local and regional air quality and pollution episodes. They will certainly play an important role in current and future satellite validation efforts and will help in the integration of satellite data in the air quality assessments
We propose to develop a compact Spectrometer system " Pandora-C" capable of improving the capabilities of existing trace gas measuring sensors and of maintain radiometric stability for reliable aerosols products. We propose an improved, compact and lightweight design for Phase 2 " Pandora-C instrument". The proposed system will greatly improve the instrument reliability and long term stability.
Primary NASA applications include satellite calibration and validation (cal/val) activities (PACE, TEMPO, GEMS). Algorithm development and model assimilation studies would all benefit from a successful Pandora-C instrument network that addresses the shortcomings of Cimel and Pandora would achieve greater accuracy in a more cost-effective manner.
Applications and customers include the US EPA, state environmental agencies, universities, and international agencies and universities. Air and water quality regulatory compliance, air quality model validation studies, and transport studies. NOAA fresh water, coastal ocean, and blue water studies would benefit from this system.