Re: [netcdfgroup] extract data about a point

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: Re: [netcdfgroup] extract data about a point
• From: Daniel Neumann <daniel.neumann@xxxxxxxxxxxxxxxxx>
• Date: Mon, 9 Oct 2017 18:03:43 +0200

Hi Richard,

Regards,
Daniel


On 09.10.2017 17:42, Richard Cloete wrote:

Hi all,

I am using the ECMWF data (Pressure Level data).

My NetCDF file has 4 dimensions: time, level, latitude, longitude. It has a 
shape of: 1, 21, 1440, 2880

I need to extract data around a point. The point is a station with latitude x 
and longitude y.
I need to extract 150k radius around that station, for all levels.

The issue is that if the station is near the pole, more grid points would be needed to 
make up the 150km radius than if the station was at the equator. Similarly, if the 
station is on the boundary (has a lat or lon close to the NetCDF boundary), then data 
must be extracted up to the edge and then wrap around… somehow!

Any help would be greatly appreciated.

Best regards,
Richard
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--
Daniel Neumann

Leibniz Institute for Baltic Sea Research Warnemuende
Physical Oceanography and Instrumentation
Seestrasse 15
18119 Rostock
Germany

phone:  +49-381-5197-287
fax:    +49-381-5197-114 or 440
e-mail: daniel.neumann@xxxxxxxxxxxxxxxxx

• References:
  • [netcdfgroup] extract data about a point
    • From: Richard Cloete