NSF award 2534683 · Regents of the University of Michigan - Ann Arbor

Collaborative Research: GEM--Quantifying the Contribution of Off-Equatorial Ultra-Low Frequency (ULF) Waves on Radial Diffusion in the Radiation Belts

Final report due

28 September 2027

in 345 days · The award ends on 31 May 2027.

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Decide about an extension31 Jan 2027in 105 days
award ending 2027-05-31 · Research.gov
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Extension request16 Apr 2027in 180 days
award ending 2027-05-31 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice21 May 2027in 215 days
award ending 2027-05-31 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Sep 2027in 345 days
award ending 2027-05-31 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Sep 2027in 345 days
award ending 2027-05-31 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Sep 2027in 345 days
award ending 2027-05-31 · 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 May 2027.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 September 2027.

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Award card

Award number: 2534683
Period of support: 1 Sep 2025 – 31 May 2027
Amount: $118,893
Awardee: Regents of the University of Michigan - Ann Arbor, ANN Arbor, MI
Program: MAGNETOSPHERIC PHYSICS
Directorate: GEO

Abstract

Electromagnetic waves with frequencies in the ultra-low frequency (ULF) range are known to be among the leading causes of radial diffusion and transport of energetic electrons in Earth's radiation belts. The frequencies of ULF waves overlap with the range of drift frequencies of energetic electrons as they circle the Earth, leading to resonant interactions. Numerous expressions have been derived to quantitatively…

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