# Spatial subset of Arctic Regional Reanalysis

**URL:** <https://forum.ecmwf.int/t/spatial-subset-of-arctic-regional-reanalysis/1712>\
**Category:** Other - Software and tools\
**Tags:** c3s, toolbox\
**Created:** [15 May 2021 00:05 UTC](https://forum.ecmwf.int/t/spatial-subset-of-arctic-regional-reanalysis/1712 "2021-05-15T00:05:08Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Axel\_Schweiger](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/a/898d66/32.png) [@Axel\_Schweiger](https://forum.ecmwf.int/u/Axel_Schweiger)\
**Post date:** [15 May 2021 00:05 UTC](https://forum.ecmwf.int/t/spatial-subset-of-arctic-regional-reanalysis/1712/1 "2021-05-15T00:05:08Z")

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Has anybody tried and succeeded in&nbsp; subsetting the Arctic Regional Reanalysis data set via the Toolbox Editor? Looking for examples. Thanks.

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<div class="post-metadata">

**Author:** ![Halldor\_Bjornsson](https://forum.ecmwf.int/letter_avatar_proxy/v4/letter/h/edb3f5/32.png) [@Halldor\_Bjornsson](https://forum.ecmwf.int/u/Halldor_Bjornsson)\
**Post date:** [17 January 2024 14:03 UTC](https://forum.ecmwf.int/t/spatial-subset-of-arctic-regional-reanalysis/1712/2 "2024-01-17T14:03:26Z")

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Just so this is documented somewhere (I did ask a similar question a long time ago and never got a reply).

This download a box around Iceland, interpolates it to a ~ 2x2 km grid. I downloaded the orography just to see the&nbsp;

how good this is

import cdstoolbox as ct

@ct.application(title='Download data')  
 @ct.output.download()  
 def download\_application():  
 &nbsp; &nbsp; data = ct.catalogue.retrieve(  
 &nbsp; &nbsp; &nbsp; &nbsp; 'reanalysis-carra-single-levels',  
 &nbsp; &nbsp; &nbsp; &nbsp; {  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'domain': 'west\_domain',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'level\_type': 'surface\_or\_atmosphere',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'variable': 'orography',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'product\_type': 'analysis',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'time': '00:00',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'year': '2023',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'month': '01',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'day': '01',  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'grid': [0.04180602,0.01826484],  
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 'area': [67, -25,63, -12.5],  
 &nbsp; &nbsp; &nbsp; &nbsp; }  
 &nbsp; &nbsp; )  
 &nbsp; &nbsp; return data