NSF award 2524994 · Virginia Polytechnic Institute and State University

Collaborative Research: Flocculation dynamics in estuarine boundary layers - advancing new understanding through an integrated field, laboratory, and computational study

Final report due

29 December 2028

in 803 days · The award ends on 31 August 2028.

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Decide about an extension3 May 2028in 563 days
award ending 2028-08-31 · Research.gov
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Extension request17 Jul 2028in 638 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 Aug 2028in 673 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due29 Dec 2028in 803 days
award ending 2028-08-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out29 Dec 2028in 803 days
award ending 2028-08-31 · 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 August 2028.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 29 December 2028.

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Award card

Award number: 2524994
Period of support: 1 Sep 2025 – 31 Aug 2028
Amount: $439,620
Awardee: Virginia Polytechnic Institute and State University, Blacksburg, VA
Program: PHYSICAL OCEANOGRAPHY
Directorate: GEO

Abstract

Flocculation, a dynamic process that binds fine muddy sediments with organic material in saltwater to form larger porous aggregates, is a fundamental process in estuarine and coastal zones that controls particle settling velocity and the vertical distribution of sediment; hence, it plays an important role in sediment deposition/erosion patterns, light attenuation in the water column, nutrient and carbon cycling, and…

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