ENA/GHG/C1 - Reprocess: addition of height global attribute

The mentor has requested the addition of a 'height' global attribute to record the inlet 
height. The inlet for the ENA AOSGHG has always been at a height of 10 meters, but the 
datastreams did not have this new global attribute. 

Both the aosghg.a1 and aosghgaux.a1 datastreams will be updated to add this new global 
attribute. 

The mentor has requested that the entire dataset be reprocessed to make this addition to 
the global attributes. We will be releasing dowstream aosghg.b0 and aosghg.b1 processing 
that will incorporate this new global attribute from the a1 input datastreams.

• Pressure in calibration cylinder 1 line(calibration_cylinder_1_line_pressure)
• Calibration cylinder 2 high pressure(calibration_cylinder_2_pressure)
• Air flow near rear fan in pump box.(rear_fan_flow)
• Measured Nafion box temperature.(nafion_box_temperature)
• Dry purge cylinder high pressure(dry_purge_cylinder_pressure)
• Chiller temperature during 1 minute interval.(chiller_temperature)
• Battery minimum in 1 minute interval(battery_minimum)
• Line pressure of tower inlet(line_pressure_tower_inlet)
• Pressure in dry purge cylinder line(dry_purge_line_pressure)
• Measured pressure control(pressure_control)
• Pressure in calibration cylinder 2 line(calibration_cylinder_2_line_pressure)
• Measured pump box temperature(pump_box_temperature)
• Nafion drier purge pressure(nafion_purge_pressure)
• Flow of Nafion box dry purge(dry_purge_flow)
• Calibration cylinder 1 high pressure(calibration_cylinder_1_pressure)
• Calibration cylinder 3 high pressure(calibration_cylinder_3_pressure)
• Liquid alarm for tower inlet(liquid_alarm_tower_inlet)
• Air flow near front fan in pump box.(front_fan_flow)
• Pressure in calibration cylinder 3 line(calibration_cylinder_3_line_pressure)
• Exhaust flow(exhaust_flow)

• Instrument status indicators(instrument_status)
• Value indicates state of the rotary valco valve (range 1 to 8)(mp_valve_position)
• Analyzer temperature(analyzer_temperature)
• Value indicating which solenoid valve is currently used(solenoid_valve)
• Picarro optical cavity temperature(cavity_temperature)
• Measured CO2 mole fraction(co2)
• Methane dry volume mixing ratio(ch4_dry)
• Picarro etalon temperature(etalon_temperature)
• Outlet DAC (digital to analog converter) value for Picarro cavity pressure
  control(outlet_valve)
• Water vapor volume percentage(h2o_vapor)
• Picarro warm box temperature(warm_box_temperature)
• Cavity pressure(cavity_pressure)
• Carbon dioxide dry volume mixing ratio(co2_dry)
• Methane concentration(ch4)
• Alarm status to be interpreted as a binary number.(alarm_status)
• Species being analyzed during sample(species)