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Reports on Geodesy and Geoinformatics
Volume 108 (2019): Numero 1 (December 2019)
Accesso libero
Topographic surface modelling using raster grid datasets by GMT: example of the Kuril–Kamchatka Trench, Pacific Ocean
Polina Lemenkova
Polina Lemenkova
| 06 nov 2019
Reports on Geodesy and Geoinformatics
Volume 108 (2019): Numero 1 (December 2019)
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Article Category:
Original Article
Pubblicato online:
06 nov 2019
Pagine:
9 - 22
Ricevuto:
20 lug 2019
Accettato:
04 ott 2019
DOI:
https://doi.org/10.2478/rgg-2019-0008
© 2019 Polina Lemenkova, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1
Study region: Sea of Okhotsk and Kamchatka area (Mercator oblique projection)
Figure 2
Topographic map of the study area: Sea of Okhotsk, Kamchatka Peninsula, Greater Kuril Chain and Kuril– Kamchatka Trench. Numerical data source: ETOPO 1 Global Relief Model 1 minute raster grid.
Figure 3
Contour bathymetric area of the Kuril–Kamchatka Trench. Conic projection.
Figure 4
Composite overlay of the 3D-topographical mesh model on top of the 2D grid contour plot. Contour bathymetric map source: ETOPO 5 min grid resolution. Azimuth rotation: 165/30.
Figure 5
Composite overlay of the 3D-topographical mesh model on top of the 2D grid contour plot. Contour bathymetric map source: ETOPO 5 min grid resolution. Azimuth rotation: 135/30.
Figure 6
Colour geoid image of the Kuril–Kamchatka Trench. Conic projection.
Figure 7
Modelling gravity regional setting in the Okhotsk Sea area. Mercator projection.
Figure 8
Modelling marine free-air gravity anomaly. Mercator projection.
Figure 9
Modelling vertical marine free-air gravity anomaly. Mercator projection.
Figure 10
Topographic surface modelling along the Kuril– Kamchatka Trench.
Figure 11
Surface gravity modelling along the Kuril–Kamchatka Trench
Figure 12
Grid contour modelling using the Nearest Neighbour algorithm
Figure 13
Grid contour modelling using two approaches: XYZ2grid GMT module (a) and Nearest Neighbour GMT module (b)
Figure 14
Automatically digitized cross-section profiles along the Kuril–Kamchatka Trench
Figure 15
Modelled gradient curves of the Kuril–Kamchatka Trench in northern and southern segments