Lunar meteoritic gardening rate derived from in situ LADEE/LDEX measurements

Jamey R. Szalay, Mihály Horányi

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


The Lunar Atmosphere and Dust Environment Explorer (LADEE) orbited the Moon for approximately 6 months, taking data with the Lunar Dust Experiment (LDEX). LDEX was uniquely equipped to characterize the current rate of lunar impact gardening as it measured the very particles taking part in this process. By deriving an average lunar dust density distribution, we calculate the rate at which exospheric dust rains back down onto the lunar surface. Near the equatorial plane, we find that approximately 40 μm/Myr of lunar regolith, with a cumulative size distribution index of 2.7, is redistributed due to meteoritic bombardment, a process which occurs predominantly on the lunar apex hemisphere.

Original languageEnglish (US)
Pages (from-to)4893-4898
Number of pages6
JournalGeophysical Research Letters
Issue number10
StatePublished - 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geophysics
  • General Earth and Planetary Sciences


  • dust
  • gardening
  • Moon
  • space weathering


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