CO2 snow depth and subsurface water-ice abundance in the northern hemisphere of Mars

I. G. Mitrofanov; M. T. Zuber; M. L. Litvak; W. V. Boynton; D. E. Smith; D. Drake; D. Hamara; A. S. Kozyrev; A. B. Sanin; C. Shinohara; R. S. Saunders; V. Tretyakov

doi:10.1126/science.1084350

CO₂ snow depth and subsurface water-ice abundance in the northern hemisphere of Mars

I. G. Mitrofanov, M. T. Zuber, M. L. Litvak, W. V. Boynton, D. E. Smith, D. Drake, D. Hamara, A. S. Kozyrev, A. B. Sanin, C. Shinohara, R. S. Saunders, V. Tretyakov

Lunar and Planetary Lab

Research output: Contribution to journal › Article › peer-review

72 Scopus citations

Abstract

Observations of seasonal variations of neutron flux from the high-energy neutron detector (HEND) on Mars Odyssey combined with direct measurements of the thickness of condensed carbon dioxide by the Mars Orbiter Laser Altimeter (MOLA) on Mars Global Surveyor show a latitudinal dependence of northern winter deposition of carbon dioxide. The observations are also consistent with a shallow substrate consisting of a layer with water ice overlain by a layer of drier soil. The lower ice-rich layer contains between 50 and 75 weight % water, indicating that the shallow subsurface at northern polar latitudes on Mars is even more water rich than that in the south.

Original language	English (US)
Pages (from-to)	2081-2084
Number of pages	4
Journal	Science
Volume	300
Issue number	5628
DOIs	https://doi.org/10.1126/science.1084350
State	Published - Jun 27 2003

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title = "CO2 snow depth and subsurface water-ice abundance in the northern hemisphere of Mars",

abstract = "Observations of seasonal variations of neutron flux from the high-energy neutron detector (HEND) on Mars Odyssey combined with direct measurements of the thickness of condensed carbon dioxide by the Mars Orbiter Laser Altimeter (MOLA) on Mars Global Surveyor show a latitudinal dependence of northern winter deposition of carbon dioxide. The observations are also consistent with a shallow substrate consisting of a layer with water ice overlain by a layer of drier soil. The lower ice-rich layer contains between 50 and 75 weight % water, indicating that the shallow subsurface at northern polar latitudes on Mars is even more water rich than that in the south.",

author = "Mitrofanov, {I. G.} and Zuber, {M. T.} and Litvak, {M. L.} and Boynton, {W. V.} and Smith, {D. E.} and D. Drake and D. Hamara and Kozyrev, {A. S.} and Sanin, {A. B.} and C. Shinohara and Saunders, {R. S.} and V. Tretyakov",

year = "2003",

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doi = "10.1126/science.1084350",

language = "English (US)",

volume = "300",

pages = "2081--2084",

journal = "Science",

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TY - JOUR

T1 - CO2 snow depth and subsurface water-ice abundance in the northern hemisphere of Mars

AU - Mitrofanov, I. G.

AU - Zuber, M. T.

AU - Litvak, M. L.

AU - Boynton, W. V.

AU - Smith, D. E.

AU - Drake, D.

AU - Hamara, D.

AU - Kozyrev, A. S.

AU - Sanin, A. B.

AU - Shinohara, C.

AU - Saunders, R. S.

AU - Tretyakov, V.

PY - 2003/6/27

Y1 - 2003/6/27

N2 - Observations of seasonal variations of neutron flux from the high-energy neutron detector (HEND) on Mars Odyssey combined with direct measurements of the thickness of condensed carbon dioxide by the Mars Orbiter Laser Altimeter (MOLA) on Mars Global Surveyor show a latitudinal dependence of northern winter deposition of carbon dioxide. The observations are also consistent with a shallow substrate consisting of a layer with water ice overlain by a layer of drier soil. The lower ice-rich layer contains between 50 and 75 weight % water, indicating that the shallow subsurface at northern polar latitudes on Mars is even more water rich than that in the south.

AB - Observations of seasonal variations of neutron flux from the high-energy neutron detector (HEND) on Mars Odyssey combined with direct measurements of the thickness of condensed carbon dioxide by the Mars Orbiter Laser Altimeter (MOLA) on Mars Global Surveyor show a latitudinal dependence of northern winter deposition of carbon dioxide. The observations are also consistent with a shallow substrate consisting of a layer with water ice overlain by a layer of drier soil. The lower ice-rich layer contains between 50 and 75 weight % water, indicating that the shallow subsurface at northern polar latitudes on Mars is even more water rich than that in the south.

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DO - 10.1126/science.1084350

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EP - 2084

JO - Science

JF - Science

IS - 5628

ER -

CO₂ snow depth and subsurface water-ice abundance in the northern hemisphere of Mars

Abstract

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