Hi @rogomichael,

It is expected in your example that sel with your given values and method='nearest' returns coordinates with duplicate longitude & latitude values.

The resolution of the grid is too coarse compared to your ROI, which is why the two provided values for latitude (longitude) both select the same grid point.

If you want to use sel for extracting a range over the latitude and longitude dimensions, it is better to use slices. It better illustrates that your ROI is smaller than the grid resolution:

```python ds.sel( longitude=slice(49.294, 49.376), latitude=slice(10.971, 11.087) )

<xarray.Dataset>

Dimensions: (time: 365, longitude: 1, latitude: 0)

Coordinates:

* time (time) datetime64[ns] 2019-01-01 2019-01-02 ... 2019-12-31

* longitude (longitude) float64 49.38

* latitude (latitude) float64

Data variables:

tg (time, latitude, longitude) float32 ...

```