code: def load_data(self):
          
          for m, member in enumerate(self.members):
              mo = ModelOutput(self.ensemble_name, member, self.run_date, self.variable,
                               self.start_date, self.end_date, self.path, self.map_file, self.single_step)
              mo.load_data()
              if self.data is None:
                  self.data = np.zeros((len(self.members), mo.data.shape[0], mo.data.shape[1], mo.data.shape[2]),
                                       dtype=np.float32)
              if mo.units == "m":
                  self.data[m] = mo.data * 1000
                  self.units = "mm"
              else:
                  self.data[m] = mo.data
              if self.units == "":
                  self.units = mo.units
              del mo.data
              del mo
docs: Loads data from each ensemble member.