Questions tagged [interpolation]

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20 votes
3 answers
60k views

How to interpolate scattered data to a regular grid in Python?

I have three txt files for longitude, latitude and temperature (or let's say three lists lon, lat, temp) from scattered weather station in the UK. I would like firstly to interpolate these data in ...
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5 votes
2 answers
734 views

Python - How to write interpolated raster to netcdf file

Currently i am dealing with a bunch of coordinates (epsg:4326 => lat/lon) and their corresponding value (temperature). The goal is to write these coordinates and their values into a simple netcdf ...
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5 votes
2 answers
193 views

Can I interpolate rainfall data from stations outside of watershed for the watershed?

I have only few station inside the watershed so I want to use the stations outside if I can to get better results
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3 votes
0 answers
56 views

Best method for weather station data interpolation with external parameters

I'm part of an organization maintaning a large network of weather stations (~3000 stations) over a European country. Besides storing data measured from the stations into a database, we also produce ...
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  • 31
3 votes
1 answer
75 views

What is the best way to interpolate Isotopic data and display them?

I want to interpolate isotope data of precipitation and display it on a map. The data are available as a CSV file. ...
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  • 1,279
2 votes
1 answer
126 views

Difficulty interpolating near poles using lat/lons

I've been writing a 2D interpolation scheme for use on the globe which utilizes lat/lon values. Once I try to use values closer to the poles, latitude distortion becomes an issue. For example: ...
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2 votes
0 answers
23 views

Universal or Ordinary Kriging?

Hi I am creating an isoscape model in which I am plotting 2H and 18O of precipitation. Until now I have always used ordinary kriging for the interpolation, but I am somewhat dissatisfied with the ...
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2 votes
0 answers
28 views

Which variogram method for ordinary kriging?

I want to plot atmospheric data (2H and 18O) on a map and use ordinary kriging for the interpolation. Now I have the question how to quantify which variogram method (Gaussian, exponential spherical) I ...
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  • 1,279
1 vote
1 answer
450 views

Interpolating world data to a local grid in Python

I have an NC file that has global data with a high resolution (about 25 minutes) so a lot of coordinates. I have some measured values of some region with irregularly spaced coordinates. In order to ...
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1 vote
0 answers
38 views

Complex interpolation for Isotopic data

I have another question, is there a package that interpolates precipitation data taking into account mountains and oceans? I have so far used Numpy and Basemap but as you can see in the code, the data ...
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  • 1,279
1 vote
0 answers
31 views

What is the best method for the spatiotemporal interpolation of Aerosol Optical Depth (AOD)?

I have a table that looks like the image below: It has a lot of missing Aerosol Optical Depth (AOD) data. To solve the only the spatial component of the problem, one can use a multivariate ...
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1 vote
0 answers
231 views

python generate 3d unstructured grid

I would like to create a 3d unstructured grid based on data points with xyz and property. Can Python do this and what tools? My question is quite generic but i can provide more details: the data has ...
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0 votes
0 answers
26 views

Oscillations in the variogram

I have created the following variogram. However, it can be seen that the values show a certain periodicity. Is this correct and where do these fluctuations come from?
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0 votes
0 answers
76 views

Algorithm for the interpolation?

I have managed to plot various points on a map and interpolate with ordinary kriging. However, my data does not look anything like it should. Do I need to use an algorithm to fill in the missing data? ...
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  • 1,279
0 votes
0 answers
27 views

Identify and mask lakes

I have a question, I can mask out the oceans in the interpolation but not the lakes. Does anyone have an approach? I have taken the masking of the oceans from: https://www.earthinversion.com/...
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