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Welcome to the Scitools-Iris users group. This group is for users to discuss the library and ask questions about Iris, a Python module for meteorology and climatology.

This group is now archived as read-only.

Please refer to the Iris GitHub Discussions Q&A section for all new discussions and questions.

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Mariano Crimaldi, Laura Dreyer2

9/14/22

Calculate a value at specific latitude and longitude via interpolation

It looks like t_atCoords.data is returning a masked array (see https://numpy.org/doc/stable/reference

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Calculate a value at specific latitude and longitude via interpolation

It looks like t_atCoords.data is returning a masked array (see https://numpy.org/doc/stable/reference

9/14/22

Laura Dreyer, Peter W3

9/14/22

Retiring this group and use Github Issues instead

Hi Peter, That is a good point about issues. We are now planning to point people who wish to ask

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Retiring this group and use Github Issues instead

Hi Peter, That is a good point about issues. We are now planning to point people who wish to ask

9/14/22

Luke Abraham, RuthC3

2/25/22

speed of reading pp files

Hi Luke, depending on the structure of your files, you may be able to take advantage of

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speed of reading pp files

Hi Luke, depending on the structure of your files, you may be able to take advantage of

2/25/22

Margarida Samsó Cabré, Tony Phillips - BAS3

2/24/22

Concatenation CESM2-WACCM historical and ssp245 files

Hi Tony, Thank you very much for your prompt reply. You really saved my day! Making the latitude and

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Concatenation CESM2-WACCM historical and ssp245 files

Hi Tony, Thank you very much for your prompt reply. You really saved my day! Making the latitude and

2/24/22

12/7/21

Issue regarding cartopy library in mac system

I am using jupyter notebook in macos. Well, I have an issue with cartopy library. When I try to plot

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Issue regarding cartopy library in mac system

I am using jupyter notebook in macos. Well, I have an issue with cartopy library. When I try to plot

12/7/21

Marga, Tony Phillips - BAS4

11/4/21

Coordinates in cube.dim_coords differ: time

Hi Tony, Thank you very much for your kind answer, it solved the issue. Thanks a lot! Marga El martes

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Coordinates in cube.dim_coords differ: time

Hi Tony, Thank you very much for your kind answer, it solved the issue. Thanks a lot! Marga El martes

11/4/21

10/13/21

iris - a dimension with a separatlely named coordinate

Hi everyone! I was wondering, is it possible in iris to create a NetCDF dimension that is attached to

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iris - a dimension with a separatlely named coordinate

Hi everyone! I was wondering, is it possible in iris to create a NetCDF dimension that is attached to

10/13/21

Paal Skjetne, RuthC2

9/22/21

Unable to load iris package using "import iris" giving Runtime Error

I cannot reproduce this error on Google Colab. When trying to run an example, I did get an error that

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Unable to load iris package using "import iris" giving Runtime Error

I cannot reproduce this error on Google Colab. When trying to run an example, I did get an error that

9/22/21

Max Coleman, RuthC4

8/23/21

Loading UM .pp data with 360_day calendar

Hi Ruth, Thanks, I think that might be it - currently have cftime 1.4.1 but iris 2.4.0 Was using an

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Loading UM .pp data with 360_day calendar

Hi Ruth, Thanks, I think that might be it - currently have cftime 1.4.1 but iris 2.4.0 Was using an

8/23/21

Clare Wang, Simon Peatman2

8/19/21

ukcp18 2.2 nc file problem for rolling window problem

Dear Clare, I've tried this with the same file and I find it runs with no errors for window sizes

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ukcp18 2.2 nc file problem for rolling window problem

Dear Clare, I've tried this with the same file and I find it runs with no errors for window sizes

8/19/21

7/28/21

iris constrain on ORCA grid

Hi everyone I am trying to extract some NEMO-MEDUSA outputs along longitude transect or longitude

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iris constrain on ORCA grid

Hi everyone I am trying to extract some NEMO-MEDUSA outputs along longitude transect or longitude

7/28/21

Luke Abraham, RuthC15

7/23/21

Error loading UM orography file: invalid year provided in cftime.datetime(0, 0, 0, 0, 0, 0, 0, calendar='gregorian')

Hi Ruth, That's fantastic - many thanks. I'll give it a test! Best wishes, Luke On Friday, 23

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Error loading UM orography file: invalid year provided in cftime.datetime(0, 0, 0, 0, 0, 0, 0, calendar='gregorian')

Hi Ruth, That's fantastic - many thanks. I'll give it a test! Best wishes, Luke On Friday, 23

7/23/21

7/11/21

Problem importing Iris in Google Colab

I am wanting to use Iris in Google Colab, however I am having difficulty getting it imported. I have

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Problem importing Iris in Google Colab

I am wanting to use Iris in Google Colab, however I am having difficulty getting it imported. I have

7/11/21

Seonaid Dey, … Nick Dunstone10

7/8/21

Loading in constraint using cell_methods?

Yes, very helpful, thanks Ruth! :-) On Sunday, 22 March 2020 at 23:23:55 UTC Jonny Williams wrote:

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Loading in constraint using cell_methods?

Yes, very helpful, thanks Ruth! :-) On Sunday, 22 March 2020 at 23:23:55 UTC Jonny Williams wrote:

7/8/21

7/1/21

Specifying cartopy as a Package Dependency

Is it possible to have cartopy as a dependency for another package (in setup.py)? If so, how would

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Specifying cartopy as a Package Dependency

Is it possible to have cartopy as a dependency for another package (in setup.py)? If so, how would

7/1/21

Phil Morefield, Tony Phillips - UKRI BAS3

6/16/21

Preserving file size

>Is it possible that the input netCDF files are stored using netCDF compression but that the

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Preserving file size

>Is it possible that the input netCDF files are stored using netCDF compression but that the

6/16/21

coralscaper, Francis2

5/20/21

Ambiguous 'iris' package...

Hi Dear host, Please I have the same problem can you guys help us out. I'm preparing a research

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Ambiguous 'iris' package...

Hi Dear host, Please I have the same problem can you guys help us out. I'm preparing a research

5/20/21

V V, … Tony Phillips - UKRI BAS4

3/18/21

Using Iris to read MODIS data

Thank you very much @Simon and @Tony. Very helpful to have these replies. I tried the code snippet

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Using Iris to read MODIS data

Thank you very much @Simon and @Tony. Very helpful to have these replies. I tried the code snippet

3/18/21

maxime prignon, … Jonny Williams5

3/15/21

Time constraints and "bounded region" TypeError

this is awesome. thanks. i was just having exactly this error! On Tuesday, February 14, 2017 at 1:37:

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Time constraints and "bounded region" TypeError

this is awesome. thanks. i was just having exactly this error! On Tuesday, February 14, 2017 at 1:37:

3/15/21

2/18/21

cube.load() is taking very long time. How can I make it faster?

Hi all, I am new to iris and trying to load quite a large amount of UM data in .pp file format. My

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cube.load() is taking very long time. How can I make it faster?

Hi all, I am new to iris and trying to load quite a large amount of UM data in .pp file format. My

2/18/21

Dhirendra Kumar, … Lucia Deaconu5

2/16/21

Daily mean from 3-hourly data

Hi Simon, Very helpful! Thank you! Lucia On 16 Feb 2021, at 11:56, Simon Peatman <ear...@leeds.ac.

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Daily mean from 3-hourly data

Hi Simon, Very helpful! Thank you! Lucia On 16 Feb 2021, at 11:56, Simon Peatman <ear...@leeds.ac.

2/16/21

Ferdinand BEBO, Glenn Nelson3

1/17/21

Thanks for the tip! On Sun, 17 Jan 2021, 01:23 Glenn Nelson, <kitec...@gmail.com> wrote:

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Thanks for the tip! On Sun, 17 Jan 2021, 01:23 Glenn Nelson, <kitec...@gmail.com> wrote:

1/17/21

11/11/20

area mean with 2d latitude and longitude coordinates

Hi, I am trying to calculate an area mean for a tri-polar coordinate system which has 2D auxiliary

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area mean with 2d latitude and longitude coordinates

Hi, I am trying to calculate an area mean for a tri-polar coordinate system which has 2D auxiliary

11/11/20

10/13/20

How to overlay a shape file with background colour on multiple subplots

Hi, I'm using matplotlib 1.5.0 / cartopy 0.15.1 / Iris 1.13.0 with Python 2.7.10. I'd like to

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How to overlay a shape file with background colour on multiple subplots

Hi, I'm using matplotlib 1.5.0 / cartopy 0.15.1 / Iris 1.13.0 with Python 2.7.10. I'd like to

10/13/20

Raghavendra S. Mupparthy, RuthC3

9/17/20

How to change the time coordinate..

Thanks Ruth! Let me try that! On Wednesday, 19 August 2020 at 14:03:48 UTC+5:30 RuthC wrote: Does

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How to change the time coordinate..

Thanks Ruth! Let me try that! On Wednesday, 19 August 2020 at 14:03:48 UTC+5:30 RuthC wrote: Does

9/17/20

Roger Bodman, Simon Peatman2

9/4/20

iris add all quarterly season coordinate

Roger, The season argument needs to be a string, not a list. The add_season_membership() function

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iris add all quarterly season coordinate

Roger, The season argument needs to be a string, not a list. The add_season_membership() function

9/4/20

MichelleMc, Denis Sergeev3

7/30/20

create 1D lat and lon coordinates from 2D lat and lon auxillary coordinates

Hi Denis, Thanks for this, I was doing something similar but with auxiliary and then trying to

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create 1D lat and lon coordinates from 2D lat and lon auxillary coordinates

Hi Denis, Thanks for this, I was doing something similar but with auxiliary and then trying to

7/30/20

MichelleMc, Phillips, Tony6

7/30/20

Trying to load a cube but too many names differ for time and time bounds

Just to update, following your advice Tony, I used NCO to create time bounds, and all works perfectly

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Trying to load a cube but too many names differ for time and time bounds

Just to update, following your advice Tony, I used NCO to create time bounds, and all works perfectly

7/30/20

Goodwin Gibbins, … Klaus Zimmermann3

7/14/20

Averaging applied auxiliary coordinates - why mean of bounds?

Hello, to me, this seems reasonable. What don't you like about it? What behavior would you prefer

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Averaging applied auxiliary coordinates - why mean of bounds?

Hello, to me, this seems reasonable. What don't you like about it? What behavior would you prefer

7/14/20

Martin Dix, … Goodwin Gibbins4

7/8/20

Calculating an annual mean with proper month length weights

Alas, the solution I offered is mistaken because the denominator in the mean is as if for a 28-day

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Calculating an annual mean with proper month length weights

Alas, the solution I offered is mistaken because the denominator in the mean is as if for a 28-day

7/8/20

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