Datastream : AOSSO2
AOS: Sulfur Dioxide Analyzer
Active Dates
2012.06.24 - 2013.02.20
Measurement Categories
Atmospheric Carbon, Atmospheric State
Originating Instrument
Aerosol Observing System (AOS)
Measurements
Only measurements considered scientifically relevant are shown below by default.
Show all measurements
| Measurement | Units | Variable |
|---|---|---|
| Altitude above mean sea level | m | alt |
| Instrument automatic gain control | % | automatic_gain_control ( time ) |
| Instrument averaging time | seconds | averaging_time ( time ) |
| Base time in Epoch | seconds since 1970-1-1 0:00:00 0:00 | base_time |
| Instrument flash lamp state 0=off, 1=on | unitless | flash_lamp_state ( time ) |
| Sample flow | l/m | flow ( time ) |
| Instrument sample state 0=zero 1=sample | unitless | gas_mode_state ( time ) |
| Internal instrument temperature | C | internal_temp ( time ) |
| Measure of the current lamp intensity as a percentage of the nominal maximum. This is used as a diagnostic of the lamp aging. | % | lamp_intensity ( time ) |
| Instrument lamp setpoint | counts | lamp_setpoint ( time ) |
| Lamp voltage | V | lamp_volt ( time ) |
| North latitude | degree_N | lat |
| Length of each flag string in so2_flags field | chars | length ( length ) |
| East longitude | degree_E | lon |
| Instrument PMT status 0=off, 1=on, 2=null | unitless | pmt_status ( time ) |
| PMT voltage | V | pmt_volt ( time ) |
| Sample pressure | mm Hg | pressure ( time ) |
| Instrument pressure compensation state 0=off, 1=on | unitless | pressure_compensation_state ( time ) |
| Instrument purge mode state 0=off, 1=on | unitless | purge_mode_state ( time ) |
| Instrument range setting | ppbv | range ( time ) |
| Reaction chamber temperature | C | reaction_chamber_temp ( time ) |
| Sulfur dioxide (SO2) mixing ratio calculated with nominal sensitivity correction | ppbv | so2 ( time ) |
| Instrument SO2 background correction | ppbv | so2_background_correction ( time ) |
| Instrument SO2 coefficient | unitless | so2_coefficient ( time ) |
| SO2 flag string | unitless | so2_flags ( time, length ) |
| Instrument temperature compensation state 0=off, 1=on | unitless | temperature_compensation_state ( time ) |
| Instrument test LED state 0=off, 1=on | unitless | test_led ( time ) |
| Time offset from midnight | time ( time ) | |
| Time offset from base_time | time_offset ( time ) |
Locations
- ARM Mobile Facility (PVC)
- Highland Center, Cape Cod MA; MAOS (S1)
- Highland Center, Cape Cod MA; MAOS (S1)
