论文信息 - Topography of the Martian tropical regions with ISM

Topography of the Martian tropical regions with ISM

Abstract The measurement of the CO 2 column density on Mars, from the 2 μm 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 Martian 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.

[1] L S Rothman,et al. Infrared energy levels and intensities of carbon dioxide. Part 3. , 1978, Applied optics.

[2] S. Erard,et al. Results from the ISM experiment , 1989, Nature.

[3] Alvin Seiff,et al. Post-Viking models for the structure of the summer atmosphere of Mars , 1978 .

[4] E. Arié,et al. Measurement of CO(2) line broadening in the 10.4-microm laser transition at low temperatures. , 1987, Applied optics.

[5] B. Schurin,et al. Integrated Intensity Measurements of Carbon Dioxide in the 2.0-micro, 1 6-micro, and 143-micro Regions. , 1968, Applied optics.

[6] Sherman S. C. Wu,et al. Photogrammetric application of viking orbital photography , 1982 .

[7] Sherman S.C. Wu,et al. Mars synthetic topographic mapping , 1976 .

[8] T. Martin. Mean thermal and albedo behavior of the Mars surface and atmosphere over a Martian year , 1981 .

[9] J. Cutts,et al. Topography of Martian central volcanoes , 1981 .

[10] Sherman S. C. Wu,et al. Photogrammetric portrayal of Mars topography , 1979 .

[11] Line widths and intensities in H2O-CO2 mixtures II. high-resolution measurements on the v2-fundamental of water vapor , 1971 .

[12] M. Belton,et al. The thermal structure of the atmosphere of Jupiter , 1974 .

[13] Michel Combes,et al. Martian atmosphere studies from the ISM experiment , 1991 .