Capabilities / Instruments

Fan Mei, AAF Data Manager, is going through the daily routine of cleaning the laser windows of the HVPS (High Volume Precipitation Spectrometer) during the 2016 Holistic Interactions of Shallow Clouds, Aerosols, and Land-Ecosystems (HI-SCALE) field campaign at ARM's Southern Great Plans (SGP) site in Oklahoma. The HVPS essentially records shadows of large aerosol (such as droplets or ice crystals) that show up between its pair of windows.

HVPS-AIR

High Volume Precipitation Spectrometer aboard aircraft

Baseline VAP, Baseline Instrument, Evaluation VAP, Guest

The high-volume precipitation spectrometer (HVPS) is an airborne optical instrument that measures the size, shape, and concentration of water drops and ice crystals in the atmosphere from 150 micron to 3 mm.

Primary Measurements

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Contact

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Susanne Glienke
Lead Mentor Pacific Northwest National Laboratory

References

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Duffy et al. "Demonstration of a Consistent Relationship Between Dual-Frequency Reflectivity and the Mass-Weighted Mean Diameter in Measurements of Frozen Precipitation from GCPEX, OLYMPEX, and MC3E". 2021. 10.2172/1818856.

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Atmospheric Radiation Measurement (ARM) | Reviewed October 2024