NSF award 2528507 · California Institute of Technology

Collaborative Research: United States Cosmics Leaving OUtdoor Droplets (CLOUD) Consortium

Final report due

30 April 2029

in 925 days · The award ends on 31 December 2028.

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Decide about an extension2 Sep 2028in 685 days
award ending 2028-12-31 · Research.gov
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Extension request16 Nov 2028in 760 days
award ending 2028-12-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Dec 2028in 795 days
award ending 2028-12-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due30 Apr 2029in 925 days
award ending 2028-12-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due30 Apr 2029in 925 days
award ending 2028-12-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out30 Apr 2029in 925 days
award ending 2028-12-31 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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NSF lists this award's end date as 31 December 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 30 April 2029.

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Award card

Award number: 2528507
Period of support: 1 Jan 2026 – 31 Dec 2028
Amount: $500,704
Awardee: California Institute of Technology, Pasadena, CA
Program: Atmospheric Chemistry
Directorate: GEO

Abstract

This project will support the continued access of U.S. researchers to the CLOUD consortium at CERN to study the chemistry and physics that drive new-particle formation and growth in Earth's atmosphere. CLOUD is a unique state-of-the-art 26 cubic meter stainless-steel chamber with precise control over temperature and relative humidity. There is no chamber facility within the USA with these capabilities. Because these…

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