TOPOGRAPHY OF THE MARTIAN TROPICAL REGIONS WITH ISM

被引：22

作者：

BIBRING, JP

ERARD, S

GONDET, B

LANGEVIN, Y

SOUFFLOT, A

COMBES, M

CARA, C

DROSSART, P

ENCRENAZ, T

LELLOUCH, E

ROSENQVIST, J

MOROZ, VI

DYACHKOV, AV

GRYGORIEV, AV

HAVINSON, NG

KHATUNTSEV, IV

KISELEV, AV

KSANFOMALITY, LV

NIKOLSKY, YV

MASSON, D

FORNI, O

SOTIN, C

机构：

[1] OBSERV PARIS,DESPA,F-92195 MEUDON,FRANCE

[2] ACAD SCI USSR,SPACE RES INST,MOSCOW 117810,USSR

[3] LAB GEODYNAM INTERNE,F-91405 ORSAY,FRANCE

来源：

PLANETARY AND SPACE SCIENCE | 1991年 / 39卷 / 1-2期

关键词：

D O I：

10.1016/0032-0633(91)90146-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The measurement of the CO2 column density on Mars, from the 2-mu-m band, in the Phobos/ISM spectra allows the determination of the altitude of the surface of Mars, with a horizontal spatial resolution of 20 km. The uncertainties involved in this method are described and compared with previous measurements of the Matrain topography. Several topographic maps have been calculated, in the region of the high Martian volcanoes and Valles Marineris. Comparison with topographic maps derived from Mariner 9 and Viking measurements shows a good agreement. An average accuracy of about 400 m is obtained, which constitutes a significant improvement, compared with previous altimetry errors, of the order of 1 km. The method has a uniform accuracy over a full observation sequence (about 3000 km wide), and is complementary to the Viking photogrammetric measurements, more accurate on a 100 km scale.

引用

页码：225 / 236

页数：12

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