نتایج جستجو برای: landform

تعداد نتایج: 1117  

2017
Stephen Tooth

Definition Geomorphology is the science that studies the origin and development of landforms and how those landforms combine to form landscapes. Landforms are shaped by geomorphological processes, many of which involve the weathering, erosion, transportation, and deposition of surface materials (rock, sediment) by gravity, ice, wind, or water. Both erosional and depositional landforms can be id...

2010
L. T. K. Ho M. Umitsu Y. Yamaguchi

The objective of this study is to generate a flood hazard map based on geomorphologic approach employing Shuttle Radar Topographic Mission (SRTM) DEM and satellite image data (ASTER and LANDSAT). Supervised classification of satellite images is implemented to characterize land cover types. Moreover, the Modified Normalized Difference Water Index (MNDWI) is undertaken to identify moist surface o...

2006
Barbara Mactaggart J Bauer D Goldney A Rawson

This paper addresses some implications our limited understanding of the swampy meadow landform has on agricultural production and sustainable water management. The ecological and hydrological consequences of current water management practices have lead to a revaluation of natural approaches as an alternative to instream engineering solutions. One such approach would be the restoration/rehabilit...

2006
Yabin Li Jianhua Gong Dan Liu Weixing Wang Daojun Wang

Two methods of grid based and image based modeling were put forward respectively to represent the landform of watersheds on the Loess Plateau, China. Many kinds of spatial data such as Digital Elevation Model (DEM), Remote Sensing (RS) images, and photos are utilized to establish the digital 3-D terrains of watersheds on the Loess Plateau, which provides 3-D virtual geographic environments for ...

2010
Timothy Barfoot Paul Furgale Braden Stenning Patrick Carle Laura Thomson Gordon Osinski Michael Daly Nadeem Ghafoor

This paper provides an overview of a rover guidance, navigation, and control (GN&C) architecture being developed to support a ground-ice prospecting mission to Mars. The main contribution of this paper is to detail an integrated field campaign that demonstrates the viability of the key rover GN&C techniques needed to carry out this mission. Tests were conducted on Devon Island in the Canadian H...

2007
Jonathan Clarke Mary Bourke Peter Nelson Michael Manga Julia Fonseca

Possible springs and their deposits are important targets for Martian exploration because of the information they contain about Martian landscapes and processes, provide indications for conditions in the Martian hydrosphere, are potential habitats for past (and present) Martian organisms, and their resource potential for human missions. The Dalhousie Mound Spring Complex (DMC) is one of largest...

Journal: :Comput. Graph. Forum 2010
Houssam Hnaidi Eric Guérin Samir Akkouche Adrien Peytavie Eric Galin

This paper presents a diffusion method for generating terrains from a set of parameterized curves that characterize the landform features such as ridge lines, riverbeds or cliffs. Our approach provides the user with an intuitive vector-based feature-oriented control over the terrain. Different types of constraints (such as elevation, slope angle and roughness) can be attached to the curves so a...

Journal: :Robotics and Autonomous Systems 2011
Tim D. Barfoot Paul Timothy Furgale Braden Stenning Patrick J. F. Carle Laura Thomson Gordon Osinski Michael Daly Nadeem Ghafoor

This paper provides an overview of a rover guidance, navigation, and control (GN&C) architecture being developed to support a ground-ice prospecting mission to Mars. The main contribution of this paper is to detail an integrated field campaign that demonstrates the viability of the key rover GN&C techniques needed to carry out this mission. Tests were conducted on Devon Island in the Canadian H...

Journal: :ISPRS international journal of geo-information 2021

Automatic procedures for landform extraction is a growing research field but extensive quantitative studies of the prediction accuracy Landform Classification (ACL) based on direct comparison with geomorphological maps are rather limited. In this work, we test an algorithm automatic classification large sector Ionian coast southern Italian belt through detailed map. was performed by using indiv...

Journal: :Geographical review of Japan, Series B. 1985

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