Interpolation of CSV Data

Asked Jan 27 '21 at 13:49

Active Jan 27 '21 at 15:56

Viewed 21 times

I have been doing an interpolation of rainfall data using QGIS and the interpolated data has a line which make the data uneven and the isohyets are being cut at the boundary line of 180 Degrees. I know that this is due to the dateline passing through Fiji Islands but I need a fix for this so that the isohyets are not cut into two different maps

Attached is a QGIS map:

edited Jan 27 '21 at 15:56

Vince

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asked Jan 27 '21 at 13:49

shawn

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You need to reproject your data before you interpolate it - pick one of the projections from the marked question's answers and all will be well – Ian Turton Jan 27 '21 at 13:53
ok i will try and if al is good than will post the maps – shawn Jan 27 '21 at 13:54
i needed the isohyets to be smooth and gradual throughout the map but the 180 degrees line makes interpolation of data difficult. It looks like the maps is divided into different section – shawn Jan 27 '21 at 14:00
what projection did you reproject to? – Ian Turton Jan 27 '21 at 14:07
ESPG:3832 and also interpolation using this projection is taking too much time – shawn Jan 27 '21 at 14:42
I can provide a csv file of the data which i am using – shawn Jan 27 '21 at 14:47
I have added the table of data if an expert is able to help me out – shawn Jan 27 '21 at 15:13

Interpolation of CSV Data

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