Data interpolation from array

Hello,

I have 5 columns of normalised snow fall data (between 0 and 1). All 5 column are 9000 rows long.

I want to interpolate this data onto an array of 2984 rows and 6033 columns in size.

Should I use the scatteredInterpolant function to do this?

If so, please help.

Kind regards,

Answer 1

[Image Analyst]

Depends. What to the columns and rows represent?

I'd probably say just use interp1() for each column one at a time.

Attach your table if you need more help.

[Sarah Yun]

The columns and rows are a DTM array.

I want to interpolate snow fall data onto the DTM array.

To show snow fall extent as a gradient across DTM extent.

[Image Analyst]

What does DTM mean? Do you want to consider the table/matrix as an image and look at the gradient within each row (going across columns)?

[Sarah Yun]

DTM means digital terrain model.

I want to interpolate the 5x9000 snowfall array onto the 2984x6033 DTM array.

What is easiest way to do it?

Thank you.

[Image Analyst]

Maybe I don't understand. If you have the snowfall in an array, why not simply use imresize()???

snowfall2 = imresize(snowfall1, [2984, 6033]);