|
|
|
|
|
Jan Blotnicki, Pawel Jarzembowski, Maciej Gruszczynski and Marcin Popczyk
The application of UAV to acquire data on the morphometry of frazil ice floe in motion is demonstrated in the measurements conducted in the area of the Wroclaw Water Junction at the Opatowice weir on the Odra River (Poland). Image processing was performe...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daiwei Zhang, Chunyang Ying, Lei Wu, Zhongqiu Meng, Xiaofei Wang and Youhua Ma
Timely and accurate extraction of crop planting structure information is of great importance for food security and sustainable agricultural development. However, long time series data with high spatial resolution have a much larger data volume, which ser...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fubing Zhang, Qun Sun, Jingzhen Ma, Zheng Lyu and Bowei Wen
Collapse is a common cartographic generalization operation in multi-scale representation and cascade updating of vector spatial data. During transformation from large- to small-scale, the dual-line river shows progressive collapse from narrow river segme...
ver más
|
|
|
|
|
|
|
|
|
|
|
Willian Ney Cassol, Sylvie Daniel and Éric Guilbert
The identification of underwater landforms represents an important role in the study of the seafloor morphology. In this context, the segmentation and characterization of underwater dunes allow a better understanding of the dynamism of the seafloor, sinc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Willian Ney Cassol, Sylvie Daniel and Éric Guilbert
The recognition of underwater dunes has a central role to ensure safe navigation. Indeed, the presence of these dynamic landforms on the seafloor represents a hazard for navigation, especially in navigation channels, and should be at least highlighted to...
ver más
|
|
|
|
|
|
|
|
|
|
|
Christos Karydas and Bin Jiang
A new method for selecting optimal scales when mapping topographic or hydrographic features is introduced. The method employs rank-size partition of heavy-tailed distributions to detect nodes of rescaling invariance in the underlying hierarchy of the dat...
ver más
|
|
|
|
|
|
|
|
|
|
|
Elzbieta Lewandowicz and Pawel Flisek
This article presents the Base Point Split (BPSplit) algorithm to generate a complex polygon skeleton based on sets of vector data describing lakes and rivers. A key feature of the BPSplit algorithm is that it is dependent on base points representing the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Nan Xu, Dongzhen Jia, Lei Ding and Yan Wu
The evolution of estuarine islands is potentially controlled by sediment discharge, tidal currents, sea level rise, and intensive human activities. An understanding of the spatial and temporal changes of estuarine islands is needed for environmental chan...
ver más
|
|
|
|
|
|