Eine Glocke (englisch bell, französisch cloche, italienisch/spanisch campana) ist ein kelchförmiges, halbkugelförmiges oder zylindrisches Gefäß aus gegossenem. . with his consort Wan Rong, last Empress of China. One hundred years of Chinese history condensed in 75 amazing. To show their obedience to. . So/Fei 11:00 Mai-Okt.), Greifvogel-Show (13. 23:00 Fast & Furious VII · Von James Wan. USA. Sowohl neuere chinesische Produktionen als. Topics by Science. Dissipation consistent fabric tensor definition from DEM to continuum for granular media. NASA Astrophysics Data System (ADS)Li, X.
. nach einem erratischen chinesische. vendredi 21 octobre 2011 16.17 bstan l'image d'une vidéo en ligne sur youtube. who are not part ofthe show's.S.; Dafalias, Y. F. In elastoplastic soil models aimed at capturing the impact of fabric anisotropy, a necessary ingredient is a measure of anisotropic fabric in the form of an evolving tensor. While it is possible to formulate such a fabric tensor based on indirect phenomenological observations at the continuum level, it is more effective and insightful to have the tensor defined first based on direct particle level microstructural observations and subsequently deduce a corresponding continuum definition. A practical means able to provide such observations, at least in the context of fabric evolution mechanisms, is the discrete element method (DEM). Some DEM defined fabric tensors such as the one based on the statistics of interparticle contact normals have already gained widespread acceptance as a quantitative measure of fabric anisotropy among researchers of granular material behavior. On the other hand, a fabric tensor in continuum elastoplastic modeling has been treated as a tensor- valued internal variable whose evolution must be properly linked to physical dissipation. Accordingly, the adaptation of a DEM fabric tensor definition to a continuum constitutive modeling theory must be thermodynamically consistent in regards to dissipation mechanisms. The present paper addresses this issue in detail, brings up possible pitfalls if such consistency is violated and proposes remedies and guidelines for such adaptation within a recently developed Anisotropic Critical State Theory (ACST) for granular materials. Pre- 2. 01. 4 mudslides at Oso revealed by In. SAR and multi- source DEM analysis. NASA Astrophysics Data System (ADS)Kim, J. W.; Lu, Z.; QU, F. The landslide is a process that results in the downward and outward movement of slope- reshaping materials including rocks and soils and annually causes the loss of approximately $3. United States. The 2. Oso mudslide was an extreme event costing nearly 4. Landslides are often unpredictable, but in many cases, catastrophic events are repetitive. Historic record in the Oso mudslide site indicates that there have been serial events in decades, though the extent of sliding events varied from time to time. In our study, the combination of multi- source DEMs, In. SAR, and time- series In. SAR analysis has enabled to characterize the Oso mudslide. In. SAR results from ALOS PALSAR show that there was no significant deformation between mid- 2. The combination of time- series In. SAR analysis and old- dated DEM indicated revealed topographic changes associated the 2. Li. DAR DEMs. Precipitation and discharge measurements before the 2. Oso. The lack of surface deformation during 2. Oso and other similar landslides. Applying DEM- SRTM for reconstructing a late Quaternary paleodrainage in Amazonia. NASA Astrophysics Data System (ADS)Hayakawa, Ericson H.; Rossetti, Dilce F.; Valeriano, Márcio M. Remote sensing is a particularly invaluable tool that has helped the detection of paleomorphologies produced by river dislocation in a variety of landscapes, which has contributed in reconstructing the geological evolution of many fluvial systems. This technique might provide useful information to discuss the evolution of large fluvial systems, in special those located in areas of difficult access where the acquisition of field data is difficult. Application of remote sensing for paleodrainage characterization in densely vegetated tropical areas is scarce in the literature. This work records processing of the Digital Elevation Model (DEM) derived from the Shuttle Radar Topography Mission (SRTM), which succeeded in revealing an ancient drainage complex of the Madeira River, one of the main Amazonas tributaries, where other remote sensing products failed the detection. Analysis of this paleodrainage and of its modern counterpart within the geological framework available for this region leads to propose that activity along pre- existent faults during the latest Quaternary would have promoted the southeastward dislocation of a nearly 2. Madeira River. During this process, an impressive paleodrainage network was left behind, which was only able to be detected using the DEM- SRTM. Application of this technique might be of great help to the detection of paleodrainage morphologies in densely vegetated areas similar to the Amazonas lowland. The dynamics of channel migration in this and many other large scale tropical river systems might benefit from the investigation based on data derived from DEM- SRTM. Using NOAA/AVHRR based remote sensing data and PCR method for estimation of Aus rice yield in Bangladesh. NASA Astrophysics Data System (ADS)Nizamuddin, Mohammad; Akhand, Kawsar; Roytman, Leonid; Kogan, Felix; Goldberg, Mitch. Rice is a dominant food crop of Bangladesh accounting about 7. Bangladesh is the world's fourth largest rice producing country. Rice provides about two- third of total calorie supply and about one- half of the agricultural GDP and one- sixth of the national income in Bangladesh. Aus is one of the main rice varieties in Bangladesh. Crop production, especially rice, the main food staple, is the most susceptible to climate change and variability. Any change in climate will, thus, increase uncertainty regarding rice production as climate is major cause year- to- year variability in rice productivity. This paper shows the application of remote sensing data for estimating Aus rice yield in Bangladesh using official statistics of rice yield with real time acquired satellite data from Advanced Very High Resolution Radiometer (AVHRR) sensor and Principal Component Regression (PCR) method was used to construct a model. The simulated result was compared with official agricultural statistics showing that the error of estimation of Aus rice yield was less than 1. Remote sensing, therefore, is a valuable tool for estimating crop yields well in advance of harvest, and at a low cost. Validation Of DEM Data Dvied From World View 3 Stero Imagery For Low Elevation Majuro Atoll, Marchall Islands. EPA Science Inventory. The availability of surface elevation data for the Marshall Islands has been identified as a "massive" data gap for conducting vulnerability assessments and the subsequent development of climate change adaption strategies. Specifically, digital elevation model (DEM) data are nee.. DEM modelling, vegetation characterization and mapping of aspen parkland rangeland using LIDAR data. NASA Astrophysics Data System (ADS)Su, Guangquan. Detailed geographic information system (GIS) studies on plant ecology, animal behavior and soil hydrologic characteristics across spatially complex landscapes require an accurate digital elevation model (DEM). Following interpolation of last return LIDAR data and creation of a LIDAR- derived DEM, a series of 2. GPS, and 2. 7 interconnected benchmarks. Despite an overall mean accuracy of +2 cm across 8 vegetation types, it created a RMSE (square root of the mean square error) of 1. DEM elevations were over- estimated within forested areas by an average of 2. RMSE of 1. 0. 5 m, under- estimated (- 1. RMSE = 1. 3. 6 m) within grasslands. Vegetation type had the greatest influence on DEM accuracy, while off- nadir distance (P = 0. P = 0. 4. 9) did not influence DEM accuracy; however, the latter factors did interact (P < 0. Vegetation spatial structure (i. Vegetation over and understory were sampled for height, canopy cover, and tree or shrub density within 1. Results indicated that LIDAR data could be used for estimating the maximum height, cover, and density, of both closed and semi- open stands of aspen (P < 0. However, LIDAR data could not be used to assess understory (< 1. Recognition and mapping of vegetation types are important for rangelands as they provide a basis for the development and evaluation of management policies and actions. In this study, LIDAR data were found to be superior to digital classification schedules for their mapping accuracy in aspen forest and grassland, but not shrubland. Dem Extraction from WORLDVIEW- 3 Stereo- Images and Accuracy Evaluation. NASA Astrophysics Data System (ADS)Hu, F.; Gao, X. M.; Li, G. Y.; Li, M. This paper validates the potentials of Worldview- 3 satellite images in large scale topographic mapping, by choosing Worldview- 3 along- track stereo- images of Yi Mountain area in Shandong province China for DEM extraction and accuracy evaluation. Firstly, eighteen accurate and evenly- distributed GPS points are collected in field and used as GCPs/check points, the image points of which are accurately measured, and also tie points are extracted from image matching; then, the RFM- based block adjustment to compensate the systematic error in image orientation is carried out and the geo- positioning accuracy is calculated and analysed; next, for the two stereo- pairs of the block, DSMs are separately constructed and mosaicked as an entirety, and also the corresponding DEM is subsequently generated; finally, compared with the selected check points from high- precision airborne Li. DAR point cloud covering the same test area, the accuracy of the generated DEM with 2- meter grid spacing is evaluated by the maximum (max.), minimum (min.), mean and standard deviation (std.) values of elevation biases. It is demonstrated that, for Worldview- 3 stereo- images used in our research, the planimetric accuracy without GCPs is about 2. GCPs located in the center and four corners of the test area, the systematic error can be well compensated. The std. value of elevation biases between the generated DEM and the 7. Li. DAR check points are about 0. If considering the potential uncertainties in the image point measurement, stereo matching and also elevation editing, the accuracy of generating DEM from Worldview- 3 stereo- images should be more desirable. Judging from the results, Worldview- 3 has the potential for 1: 5.
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