ARM has a suite of baseline instruments that are typically flown on its tethered balloon system (TBS) missions. Other instruments that may be flown on the TBS are available upon request. Typically, only a subset of the instruments in this second category could be accommodated on a particular mission. In the following table, instruments are designated as baseline or available upon request in the Type column.
TBS: Baseline Instruments
Aerosol Properties
| Instrument | Property Measured | Type |
|---|---|---|
| Printed Optical Particle Spectrometer (POPS) (6 units) | Aerosol size distribution from 140 nm to 3 μm | Baseline |
| Condensation Particle Counter (CPC) Model 3007 (4 units) | Total aerosol concentration from 0.01 μm to 1 μm | Baseline |
| Size- and Time-Resolved Aerosol Collector (STAC) | Size- and time-resolved chemical composition from 0.1 µm to 5.0 µm | Baseline |
| Cascade impactors (6 units) | Size-resolved chemical composition at four cut-off sizes (0.25, 0.5, 1.0, 2.5 μm) | Available upon request |
| MicroAeth AE-51 | Black carbon concentration measured at 880 nm | Available upon request |
Atmospheric State and Aircraft State
| Instrument | Property Measured | Type |
|---|---|---|
| iMet RSB-1 and RSB-4 radiosondes (multiple) | Pressure, temperature, relative humidity, 3D GPS | Baseline |
| iMet XQ2 UAV Sensor (multiple) | Pressure, temperature, relative humidity, 3D GPS | Baseline |
| 40C cup anemometers (10 units) | 1 Hz horizontal wind speed | Baseline |
| VectorNav GNSS wind direction (10 units) | 1 Hz wind direction | Baseline |
| Sensornet Oryx DTS | Distributed temperature sensing at 2 m spatial resolution and 0.08°C accuracy | Available upon request |
| Silixa XT DTS | Distributed temperature sensing at 0.5 m spatial resolution and 0.08°C accuracy | Available upon request |
Cloud Properties
| Instrument | Property Measured | Type |
|---|---|---|
| Supercooled liquid water sondes | Cloud supercooled liquid water content in g/m3 | Available upon request |
| Video Ice Particle Sampler (VIPS) | Ice particle maximum dimension, width, area, and aspect ratio from 1 µm to 5 mm | Available upon request |
Gas Phase Properties
| Instrument | Property Measured | Type |
|---|---|---|
| Fielded Remote Organic Sampling Technology (FROST) Sampler | Identification and concentration of volatile organic compounds on LECO GC-TOFMS > 1 picogram | Available upon request |
Remote Sensing
| Instrument | Property Measured | Type |
|---|---|---|
| Mirage 640P | 30 Hz imaging of 1.5 µm to 5.1 µm spectral band, surface temperature | Available upon request |