نتایج جستجو برای: landform evolution
تعداد نتایج: 342510 فیلتر نتایج به سال:
Management of desert grasslands requires rapid, low technology, coarse assessment methods that provide a triage-like prioritization for the manager. Such approaches necessitate the ability to quickly and effectively identify coarse-scale plant communities that provide guidance for this prioritization. Complex, computer intensive digital image classification of Landsat TM data, while marginally ...
PRECARPATHIAN AND TRANSCARPATHIAN LANDFORM EVOLUTION IN THE PLIOCENE-PLEOSTOCENE AND AT EARLY STAGES
In China’s Loess Plateau severe gully erosion (LPGE) region, the shoulder-line is most intuitive and unique manifestation of loess landform, which divides a landform into positive negative terrains (PNTs). The spatial combination model PNTs great significance for revealing evolution landform. This study modeled proposed Surface Nibble Degree (SND), new index that reflects comparison areas PNTs....
Volcanic edifices are abundant on rocky bodies of the inner solar system. In the cold outer solar system, volcanism can occur on solid bodies with a water-ice shell, but derived cryovolcanic constructs have proved elusive. We report the discovery, using Dawn Framing Camera images, of a landform on dwarf planet Ceres that we argue represents a viscous cryovolcanic dome. Parent material of the cr...
Surface elevation is a critical data for geo-science study. As far as some regions with rapidly-changing in landform, analyzing the surface elevation of different periods help provide scientific basis for regional economic & social sustained development. Jiangsu coast is force tide zone, and the complicated sediment dynamical environment, gently rolling tidal-flat landform, huge spatial differe...
Landform is a complication of land or landscape the establishment of which is formed by natural processes that can be described and defined by diagnosis index and if detected, the Landform information about their structure and composition, texture or its integrated offers. Landform variety and diversity of participants, mainly by changing the shape and position of the controls placed. So, class...
Geoscientists have become increasingly dependent on digital elevation models (DEMs) to delineate and measure landforms and landscapes. However, the DEM grid cell size available may not be the optimum resolution; this can mask subtle changes in measurements and lead to erroneous results. This paper presents a standardized statistical technique (i.e. statistical process control charts (SPCC)) for...
In this work we presented a methodology based on non linear regression for Landform Attributes representation. The equations to estimates the parameters of a two dimensional polynomial are shown and, for testing the methodology, it was used the data of Landform Attributes from the state of Minas Gerais (Brazil) obtained by the Digital Model of Elevation (DME) from GTOPO30 [5] project, in the fo...
Suband proglacial bed conditions influence advance and retreat of an ice sheet. The existence and distribution of frozen ground is of major importance for better understanding of ice-flow dynamics and landform formation. The southern margin of the Laurentide ice sheet (LIS) was dominated by the presence of relatively thin ice lobes that seem to have been very sensitive to external and internal ...
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