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/2308#issuecomment-407739349,https://api.github.com/repos/pydata/xarray/issues/2308,407739349,MDEyOklzc3VlQ29tbWVudDQwNzczOTM0OQ==,1828519,2018-07-25T12:35:52Z,2018-07-25T12:35:52Z,CONTRIBUTOR,"@fmaussion I completely agree *except* now that all of this is being brought up I see why it may have been better to put the 'crs' in the coordinates of the DataArray returned by `open_rasterio`. Since two DataArrays in different projections are not and should not be considered ""mergeable"". But I can also see how this walks the line of special handling of a data format by trying to interpret things in a certain way, but that line is already pretty blurry in the case of reading rasterio compatible datasets.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,344058811
https://github.com/pydata/xarray/issues/2308#issuecomment-407613401,https://api.github.com/repos/pydata/xarray/issues/2308,407613401,MDEyOklzc3VlQ29tbWVudDQwNzYxMzQwMQ==,1828519,2018-07-25T02:30:38Z,2018-07-25T02:30:38Z,CONTRIBUTOR,"This is the output of using xarray with a standard GOES-16 ABI L1B data file:
```python
In [2]: import xarray as xr
In [3]: nc = xr.open_dataset('OR_ABI-L1b-RadF-M3C01_G16_s20181741200454_e20181741211221_c20181741211264.nc')
In [4]: nc.data_vars['Rad']
Out[4]:
array([[nan, nan, nan, ..., nan, nan, nan],
[nan, nan, nan, ..., nan, nan, nan],
[nan, nan, nan, ..., nan, nan, nan],
...,
[nan, nan, nan, ..., nan, nan, nan],
[nan, nan, nan, ..., nan, nan, nan],
[nan, nan, nan, ..., nan, nan, nan]], dtype=float32)
Coordinates:
t datetime64[ns] ...
* y (y) float32 0.151858 0.15183 0.151802 0.151774 0.151746 ...
* x (x) float32 -0.151858 -0.15183 -0.151802 -0.151774 -0.151746 ...
y_image float32 ...
x_image float32 ...
Attributes:
long_name: ABI L1b Radiances
standard_name: toa_outgoing_radiance_per_unit_wavelength
sensor_band_bit_depth: 10
valid_range: [ 0 1022]
units: W m-2 sr-1 um-1
resolution: y: 0.000028 rad x: 0.000028 rad
grid_mapping: goes_imager_projection
cell_methods: t: point area: point
ancillary_variables: DQF
In [5]: nc.data_vars['goes_imager_projection']
Out[5]:
array(-2147483647, dtype=int32)
Coordinates:
t datetime64[ns] ...
y_image float32 ...
x_image float32 ...
Attributes:
long_name: GOES-R ABI fixed grid projection
grid_mapping_name: geostationary
perspective_point_height: 35786023.0
semi_major_axis: 6378137.0
semi_minor_axis: 6356752.31414
inverse_flattening: 298.2572221
latitude_of_projection_origin: 0.0
longitude_of_projection_origin: -75.0
sweep_angle_axis: x
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,344058811
https://github.com/pydata/xarray/issues/2308#issuecomment-407560681,https://api.github.com/repos/pydata/xarray/issues/2308,407560681,MDEyOklzc3VlQ29tbWVudDQwNzU2MDY4MQ==,1828519,2018-07-24T21:38:34Z,2018-07-24T21:38:34Z,CONTRIBUTOR,"I wouldn't expect it to add `crs` if there wasn't a `grid_mapping` specified, but if it was then I would. In a simple test where I did `xr.open_dataset('my_nc.nc')` which has a `grid_mapping` attribute, xarray does nothing special to create a `crs` or other named coordinate variable referencing the associated `grid_mapping` variable.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,344058811
https://github.com/pydata/xarray/issues/2308#issuecomment-407522819,https://api.github.com/repos/pydata/xarray/issues/2308,407522819,MDEyOklzc3VlQ29tbWVudDQwNzUyMjgxOQ==,1828519,2018-07-24T19:23:51Z,2018-07-24T19:23:51Z,CONTRIBUTOR,"@snowman2 This should mean that `open_dataset` should handle CRS specially too, right? Currently it doesn't seem to do anything special for the coordinate variable pointed to by `grid_mapping`.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,344058811