Cloud Physics Instruments

 

Multiple cloud probes are owned by FAAM to cover a range of cloud-particle sizes from 3µm to 6500µm. The measurable particle/droplet sizes of the cloud probes are illustrated in the diagram below. This extensive range allows for the measurement within all cloud types at different stages of evolution. Also illustrated are the sizing capabilities of some aerosol instruments. 

 

FAAM particle instruments 50

GRIMM CPC PCASP CDP CIP15 CIP100 2DC CCN PSAP Nephelometer CAPS

Cloud Physics Main Page probe picture

The probes are wing-mounted in canisters, shown to the left,and include both optical particle counters (OPC) and optical array probes (OAP). The core wing-mounted OPCs are PCASPand CDP; OAPs are the CIPs. The 2DC is also an OAP but was retired in December 2014

 

Wing-mounted Cloud Probes:                                  

CDP (Cloud Droplet Probe)                                      

CIPs (Cloud Imaging Probes)                                  

2DC (2-Dimensional Cloud probe)

 

Water Content Instruments:                                  

TWC (Total Water Content probe)                                      

JW (Cloud Imaging Probes)                                  

Nevzorov probe

 

Click for INSTRUMENT STATUS

                          

 

 

[1] From eq 3a and table 1a. Hess, Koepke, Schult, BAMS79, 1998

[2] From Kulkarni, Baron, and Willeke. Avg numbers from Table 4-1

FAAM CORE Cloud Imaging Probes (CIP-15 & CIP-100)

Measures concentration of liquid water in clouds using a heated wire resistance bridge.

Nevzorov liquid and total water content probe

Additional information