Cited by 358Planetary Science and ExplorationAstro and Planetary ScienceSpacecraft Design and Technology

Lunar equatorial surface temperatures and regolith properties from the Diviner Lunar Radiometer Experiment

Vasavada, Ashwin R., Bandfield, Joshua L., Greenhagen, Benjamin T., Hayne, Paul O., Siegler, Matthew A., Williams, Jean‐Pierre, Paige, David A.·2012·Journal of Geophysical Research: Planets

Abstract

The Diviner Lunar Radiometer Experiment onboard the Lunar Reconnaissance Orbiter has measured solar reflectance and mid‐infrared radiance globally, over four diurnal cycles, at unprecedented spatial and temporal resolution. These data are used to infer the radiative and bulk thermophysical properties of the near‐surface regolith layer at all longitudes around the equator. Normal albedos are estimated from solar reflectance measurements. Normal spectral emissivities relative to the 8‐μm Christiansen Feature are computed from brightness temperatures and used along with albedos as inputs to a numerical thermal model. Model fits to daytime temperatures require that the albedo increase with solar incidence angle. Measured nighttime cooling is remarkably similar across longitude and major geologic units, consistent with the scarcity of rock exposures and with the widespread presence of a near‐surface layer whose physical structure and thermal response are determined by pulverization through micrometeoroid impacts. Nighttime temperatures are best fit using a graded regolith model, with a ∼40% increase in bulk density and an eightfold increase in thermal conductivity (adjusted for temperature) occurring within several centimeters of the surface.

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Registry

Crossref · 10.1029/2011je003987

Cites

19 of 19 references verified0 citation errors · 0 not checkable

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  • At a specified lunar location, seasonal changes in the Sun's paths of diurnal motion, diurnal surface temperature distributions or LAD/LAN ratios are so minute that they are neglected in most practical applications.

    “At a specified lunar location, any seasonal changes in the Sun's paths of diurnal motion, diurnal surface temperature distributions or LAD/LAN ratios are so minute, that they are neglected in most practical applications [61,62].”

    From Parametric Study of a Lunar Base Power Systems (2021) · cites this paper as [62]

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Authors
Vasavada, A. R., Bandfield, J. L., Greenhagen, B. T., Hayne, P. O., Siegler, M. A., Williams, J., & Paige, D. A.
Affiliations
  • Jet Propulsion Laboratory (US)
  • University of Washington (US)
  • California Institute of Technology (US)
  • University of California, Los Angeles (US)
Venue
Journal of Geophysical Research: Planets
Published
2012-04-04
Volume
117
Issue
E12
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2126353612
Cited by
357
References
20
Citations by year
2026: 36 · 2025: 34 · 2024: 26 · 2023: 32 · 2022: 24 · 2021: 39 · 2020: 28 · 2019: 27 · 2018: 15 · 2017: 21 · 2016: 18 · 2015: 27 · 2014: 22 · 2013: 6 · 2012: 2
FWCI
9.98
Type
journal article
Language
en
Open access
closed
Locations
Journal of Geophysical Research Atmospheres (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Planetary Science and Exploration
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
  • Physical Sciences › Engineering › Aerospace Engineering › Spacecraft Design and Technology
Keywords
lunar surface temperature, lunar regolith, Lunar Reconnaissance Orbiter, solar reflectance, thermal properties, thermal conductivity, albedo, emissivity, Christiansen feature, brightness temperature, night cooling, micrometeoroid impacts

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