Geomorphometric comparison of DEMs built by different interpolation methods
Journal Title: Landform Analysis - Year 2016, Vol 0, Issue 32
Abstract
One of the most important stages of creating DEMs is the selection of a suitable interpolation algorithm. In this paper I decided to take a look at the most popular methods of data interpolation: Inverse Distance Weighting, Natural Neighbour, Spline, Radial Basis Functions, Local Polynomial and Kriging. As the research area served fragment (20 km2) of the Silesian Upland with diversified relief. I analysed visual effects (3D view and profiles), summarized the basic geomorphometric statistics (heights, local relief, slopes, aspects, curvatures) and an assessment of the vertical accuracy of developed models (RMSE and result conformity) have made. After conducted studies it can be stated, that the best interpolation methods for analyse of the relief are Natural Neighbour and Kriging, because they do not create any artefacts.
Authors and Affiliations
Bartłomiej Szypuła
Keywords
Related Articles
- EP ID EP241381
- DOI 10.12657/landfana.032.004
- Views 44
- Downloads 0
Transformations in morphometry of valley bottom as a result of the creation of a reservoir illustrated with the example of Sulejów Lake
The authors have undertaken the development of DEM based on the archived materials from the time when the area of present Sulejów Lake was not an artificial water reservoir. The source materials used were Area Map of Adm...
Channel dynamics and hydraulic geometry of two tropical deltaic catchments in Southern Nigeria
This paper attempts to explain the channel processes and dynamics of two river systems running through a rapidly urbanizing humid tropical deltaic environment with visible threats from industrialization and pollution. Hy...
Analiza sedymentologiczna osadów denudacyjnych w niszy niwalnej w krawędzi Pradoliny Toruńsko-Eberswaldzkiej
W artykule przedstawiono analizę litofacjalną osadów budujących niszę niwalną, wykształconą na południowym zboczu Pradoliny Toruńsko-Eberswaldziej i dokonano ich interpretacji genetycznej. Cechy morfometryczne formy (dłu...
Geochemical properties of the Late Pleistocene loess-soil sequence in Dankowice (Niemcza-Strzelin Hills)
Loess-soil sequences provide one of the most continuous and detailed records of the climate changes on land areas in the Quaternary. The Late Pleistocene loess section in Dankowice (Niemcza-Strzelin Hills) is one of the...
Morfodynamika i tempo erozji klifu w Trzęsaczu (1997–2017)
Na podstawie pomiarów morfologicznych klifu i plaży oraz dokumentacji fotograficznej ustalono współczesne tempo erozji klifu w miejscowości Trzęsacz w latach 1997-2017. Zarejestrowane zmiany geodynamiczne klifu powiązano...