html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue https://github.com/pydata/xarray/issues/7838#issuecomment-1546068136,https://api.github.com/repos/pydata/xarray/issues/7838,1546068136,IC_kwDOAMm_X85cJyCo,14111025,2023-05-12T17:33:03Z,2023-05-12T17:33:03Z,NONE,"Thanks, yes. The remote access and local access are different with xarray v0.20.2. remote: local access: ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1706864252 https://github.com/pydata/xarray/issues/7838#issuecomment-1546024198,https://api.github.com/repos/pydata/xarray/issues/7838,1546024198,IC_kwDOAMm_X85cJnUG,2448579,2023-05-12T16:52:29Z,2023-05-12T16:52:29Z,MEMBER,"Thanks! I tracked this down to the difference between reading the file remotely, or downloading first and accessing a local copy on v0.20.2 (the latter is what I used to produce my figures). Can you reproduce? ``` remote = xr.open_dataset( ""http://kage.ldeo.columbia.edu:81/SOURCES/.LOCAL/.sst.mon.mean.nc/.sst/dods"" ).sst.sel(lat=20, lon=280, method=""nearest"") local = xr.open_dataset(""~/Downloads/data.cdf"").sst.sel(lat=20, lon=280, method=""nearest"") ``` ``` (remote.groupby(""time.month"") - remote.groupby(""time.month"").mean()).plot() ``` ![image](https://github.com/pydata/xarray/assets/2448579/a44e1c34-55b9-4b88-9604-c344cca14744) ``` (local.groupby(""time.month"") - local.groupby(""time.month"").mean()).plot() ``` ![image](https://github.com/pydata/xarray/assets/2448579/23f2f4dc-377e-43d1-b296-aab7c34285e1) ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1706864252 https://github.com/pydata/xarray/issues/7838#issuecomment-1545958981,https://api.github.com/repos/pydata/xarray/issues/7838,1545958981,IC_kwDOAMm_X85cJXZF,14111025,2023-05-12T15:56:52Z,2023-05-12T15:58:16Z,NONE,"v 2022.11.0 v0.20.2 ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1706864252 https://github.com/pydata/xarray/issues/7838#issuecomment-1545930953,https://api.github.com/repos/pydata/xarray/issues/7838,1545930953,IC_kwDOAMm_X85cJQjJ,2448579,2023-05-12T15:32:47Z,2023-05-12T15:35:02Z,MEMBER,"Can you compare `ds_anom` at a point in both versions please? I get a plot that looks quite similar ### v0.20.2: ![image](https://github.com/pydata/xarray/assets/2448579/fbea3985-ec66-44c9-b434-7497778b9004) ### v2022.03.0: ![image](https://github.com/pydata/xarray/assets/2448579/a4843606-934f-4a86-831b-31cfaba1e62c) ### v2023.04.2 ![image](https://github.com/pydata/xarray/assets/2448579/57560794-d73b-47e0-adee-4343b60692b5) ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1706864252 https://github.com/pydata/xarray/issues/7838#issuecomment-1545060540,https://api.github.com/repos/pydata/xarray/issues/7838,1545060540,IC_kwDOAMm_X85cF8C8,30606887,2023-05-12T03:34:09Z,2023-05-12T03:34:09Z,NONE,"Thanks for opening your first issue here at xarray! Be sure to follow the issue template! If you have an idea for a solution, we would really welcome a Pull Request with proposed changes. See the [Contributing Guide](https://docs.xarray.dev/en/latest/contributing.html) for more. It may take us a while to respond here, but we really value your contribution. Contributors like you help make xarray better. Thank you! ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1706864252