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Questions tagged [spline]

A piecewise polynomial function that can have a locally very simple form, yet at the same time be globally flexible and smooth.

11 questions with no upvoted or accepted answers
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97 views

Choosing interpolation method for monthly atmospheric parameters derived from AQUA/Air satellite?

I want to investigate atmospheric refraction and i am using Aqua/ Airs satellite data. These are atmospheric parameters (1) Air temperature (2) Geopotential height (3) Relative Humidity All these ...
2
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45 views

Can I interpolate but follow the trend of another surface?

I have a point data set will a fairly low sample density and a raster that should loosely correlate with the values of the points. For example, this could be elevation and temperature readings. I want ...
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96 views

Spline plugin doesn't work

I have Spline plugin installed. It is activated. When I try to draw a curved line it doesn't change into a curve. The lines remain the way I have drawn them. I am using QIS 2.10.1 with Windows 8 or 7. ...
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409 views

Why does gdalwarp's cubicspline method expand into nodata areas?

The image below shows part of a peninsula on the Australian island of Tasmania. The black pixels are 9" climate data with GDA94 (EPSG:4283) SRS, projected by QGIS on the fly to Australian Albers (EPSG:...
2
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0answers
598 views

Limiting the maximum and minimum values of an interpolation surface tool (ArcGIS, Spline)

I've been using the spatial analyst spline tool in ArcGIS 10.1 and was wandering whether it is possible to limit the maximum and minimum values to those of the z-attribute. Currently the spline will ...
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100 views

Interpolating sparse bathymetry to correct global grid using ArcGIS Desktop?

I am using ArcMap 10.5.1 I am trying to update a global bathymetry grid (at 1 min resolution) with local sounding data (resampled to 1 min resolution). The sounding data is sparse and irregular in ...
1
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59 views

'Spline' tool in ArcGIS Pro keeps dropping collinear points

I am trying to convert the WorldClim dataset from their original resolution of 30 arc-seconds (WGS1984) to 25m cells (OSGB British National Grid) for use in Maxent modelling. I clipped the ...
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863 views

How can I smooth a discrete raster in ArcGIS?

I started with a continuous spline raster of hotspots, classified by standard deviations from the mean. This displays as 7 classes, but since it's a continuous raster in ArcGIS 10.2, it appears nice ...
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2k views

Error #010067 when running spline interpolation

I am attempting to run a spline interpolation on a point dataset of 585 features in ArcGIS 9.3, using the spatial analyst toolbar. The dataset holds only latitude, longitude and abundance attribute ...
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30 views

QGIS crashes instantly with multilevel B-Spline tool

I'm trying to use the multilevel B-Spline tool by SAGA in order to interpolate some points and create a raster image. But sadly while the process is running, QGIS crashed without any error message. ...
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89 views

Using spline / IDW interpolation for bathymetric profile of lake bed in ArcGIS Desktop?

I have partial bathymetric / topographic coverage at 1m resolution of a lake bed and shore and am trying to find an appropriate method for 'filling in the gaps'. I have tried using the following in ...