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darts_preprocessing.calculate_slope

Calculate the slope of the terrain surface from an ArcticDEM Dataset.

Parameters:

  • arcticdem_ds (xarray.Dataset) –

    The ArcticDEM Dataset containing the 'dem' variable.

Returns:

  • xarray.Dataset –

    xr.Dataset: The input Dataset with the calculated slope added as a new variable 'slope'.

Source code in darts-preprocessing/src/darts_preprocessing/engineering/arcticdem.py 
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@stopuhr.funkuhr("Calculating slope", printer=logger.debug)
def calculate_slope(arcticdem_ds: xr.Dataset) -> xr.Dataset:
    """Calculate the slope of the terrain surface from an ArcticDEM Dataset.

    Args:
        arcticdem_ds (xr.Dataset): The ArcticDEM Dataset containing the 'dem' variable.

    Returns:
        xr.Dataset: The input Dataset with the calculated slope added as a new variable 'slope'.

    """
    slope_deg = slope(arcticdem_ds.dem)
    slope_deg.attrs = {
        "long_name": "Slope",
        "units": "degrees",
        "description": "The slope of the terrain surface in degrees.",
        "source": "ArcticDEM",
        "_FillValue": float("nan"),
    }
    arcticdem_ds["slope"] = slope_deg.compute()
    return arcticdem_ds