STTR Phase I: Miniaturization of the Continuous-Flow Streamwise Thermal-Gradient Cloud Condensation Nuclei (CCN) Counter

Award Information
Agency:
National Science Foundation
Branch
n/a
Amount:
$149,740.00
Award Year:
2007
Program:
STTR
Phase:
Phase I
Contract:
0712444
Agency Tracking Number:
0712444
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
D.M.T.
5710 FLATIRON PKWY, 6745 HOLLISTER AVENUE, Boulder, CO, 80301
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
786731802
Principal Investigator:
Gregory Kok
Dr
(303) 440-5576
glkok@dropletmeasurement.com
Business Contact:
Gregory Kok
PhD
(303) 440-5576
glkok@dropletmeasurement.com
Research Institution:
Univ of CA SD Scripps Inst
Gregory C Roberts
Center for Atmospheric Sciences
La Jolla, CA, 92093 6312
(858) 822-1662
Nonprofit college or university
Abstract
This Small Business Technology Transfer (STTR) Phase I research proposal addresses one of the largest uncertainties in understanding climate change. Measurements of cloud condensation nuclei (CCN) aerosols are fundamental for providing the link between atmospheric aerosol properties and cloud microphysics. The continuous-flow streamwise thermal gradient technique has significantly improved the quality of CCN measurements. The main features of this instrument include: supersaturation that is a function of flow rate and temperature; continuous flow allows fast sampling; and simple cylindrical geometry reducing size and minimizing buoyancy effects. In this new design the operational limits have been identified and the overall size of the instrument reduced. The objective of this research proposal is to provide a miniature CCN counter, based on an operational prototype that will reduce weight, size and power consumption by a factor of ten. This company has commercialized the streamwise thermal-gradient CCN instrument that is the accepted standard and has been successfully deployed in dozens of international experiments. Future studies on aerosol/cloud/climate interactions require a major effort to provide adequate instrumentation to bridge the gap between aerosols and cloud properties to define limits for atmospheric models. A miniature commercial CCN instrument is essential for deployment in the next generation of research aircraft. This instrumentation development will be an important step forward in providing additional data for climate researchers.

* information listed above is at the time of submission.

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