نتایج جستجو برای: physiographic units

تعداد نتایج: 172603  

2004
Demetre P. Argialas Angelos Tzotsos

There is a need to automate terrain feature mapping so that to make the process more objective and less time consuming by using proper feature extraction techniques. The objective of this study was the use of object-oriented image analysis methods for the automatic extraction of alluvial fan terrain units. The study area was located in the Death Valley, Nevada, USA. The data used included an AS...

2009
F. Grings P. Perna H. Karszenbaum V. A. Ramos

Introduction: SHARAD (SHAllow RADar) is a radar sounder capable of discriminating layers of different materials in the martian crust. Both its vertical resolution and discrimination capabilities depends on layer relative permitivitty. Therefore, SHARAD is in principle not only able to detect subsurface layers of liquid water and ice, but also some aspects of vertical structure of the Martian cr...

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