<p>Remember that 360° == 0°. They're the same line of longitude. So the gap between 359° and 0° is no more than the gap between 1° and 2°, and should be handled the same way.</p>

CC BY-SA 4.0
2019-06-19T13:57:27.600Z
Hi Simon, so the value at 359.25 should be the same as the value at 1.25 ?
Ewok The Sith Lord
CC BY-SA 4.0
2019-06-19T14:58:02.153Z
@EwokTheSithLord no, the value at 359.25 is the same as the value at -0.75. Think of a line of equally spaced numbers through this region: 359.0, 359.25, 359.50, 359.75, 0.00, 0.25, 0.5.... does that help?
Semidiurnal Simon
CC BY-SA 4.0
2019-06-19T20:08:32.897Z
Hi Simon, sorry to bother you again. But as I mentioned if the range is only from 0 to 359, I cannot guess the value at 359.25 (since -0.75 is not in this range)
Ewok The Sith Lord
CC BY-SA 4.0
2019-06-19T20:18:21.773Z
Remember that 360° is the same as 0°. You have information at 0°.

If you need to know the value at 7.5°, you will probably interpolate between the values at 7° and 8°. If you need to know the value at 359.5°, you can interpolate between the values at 359° and 0°. It's no different.
Semidiurnal Simon
CC BY-SA 4.0
2019-06-19T20:20:32.983Z
Thank you so much Simon, for the interpolation method, would you recommend cubic ?
Ewok The Sith Lord
CC BY-SA 4.0
2019-06-19T20:22:08.387Z
That depends on your data, what you want to do with it, etc., so I'm not going to try to answer. But the point is that whatever method you would use between any other whole-degree angles, you can use between 359 and 0.
Semidiurnal Simon
CC BY-SA 4.0
2019-06-19T20:30:24.103Z
Thank you for your help, I will duplicate the data at 359 and at 0 to interpret the range.
Ewok The Sith Lord
CC BY-SA 4.0
2019-06-11T22:24:15.833Z
2019-06-11T22:32:07.923Z
2019-06-11T22:32:07.923Z
Semidiurnal Simon
<p>I downloaded a grib file of oceanography (Mean Wave Period) from ERA-Interim and the longitude values give the value at the points is 0,1, 2, 3....357, 358, 359</p>

<p>If I have geographical coordinates that fall between the range 359 to 360 degree longitude. How can I represent them? </p>

<p>Thank you for your time and concern reading my question, </p>

<p>Sincerely, </p>

<oceanography><ocean-currents>
What is the weather data covering the range of 359 to 360 degree
Ewok The Sith Lord
# What is the weather data covering the range of 359 to 360 degree

(Asked by: username_0 on 2019-06-11)

I downloaded a grib file of oceanography (Mean Wave Period) from ERA-Interim and the longitude values give the value at the points is 0,1, 2, 3....357, 358, 359

If I have geographical coordinates that fall between the range 359 to 360 degree longitude. How can I represent them?

Thank you for your time and concern reading my question,

Sincerely,

**Tags:** oceanography, ocean-currents


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## 1 answers

### Answer by username_1 on 2019-06-11. Score: 8 | Accepted answer

Remember that 360° == 0°. They're the same line of longitude. So the gap between 359° and 0° is no more than the gap between 1° and 2°, and should be handled the same way.

> **Comments:**
> **username_0**: Hi username_1, so the value at 359.25 should be the same as the value at 1.25 ?  
> **username_1**: @username_0 no, the value at 359.25 is the same as the value at -0.75. Think of a line of equally spaced numbers through this region: 359.0, 359.25, 359.50, 359.75, 0.00, 0.25, 0.5.... does that help?  
> **username_0**: Hi username_1, sorry to bother you again. But as I mentioned if the range is only from 0 to 359, I cannot guess the value at 359.25 (since -0.75 is not in this range)  
> **username_1**: Remember that 360° is the same as 0°. You have information at 0°.  If you need to know the value at 7.5°, you will probably interpolate between the values at 7° and 8°. If you need to know the value at 359.5°, you can interpolate between the values at 359° and 0°. It's no different.  
> **username_0**: Thank you so much username_1, for the interpolation method, would you recommend cubic ?  
> **username_1**: That depends on your data, what you want to do with it, etc., so I'm not going to try to answer. But the point is that whatever method you would use between any other whole-degree angles, you can use between 359 and 0.  
> **username_0**: Thank you for your help, I will duplicate the data at 359 and at 0 to interpret the range.  

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