Instruments Available on NSF/NCAR Research Aircraft

The NSF/NCAR HIAPER GV and C-130 airborne platforms are equipped with fuselage apertures of different shapes and sizes to accept optical windows or structural plates that serve as mounting locations for various remote sensing instruments. Large, interchangeable instrumentation pods can carry optical particle probes, active and passive remote sensors, and in-situ sensors. Wingtip pylons can carry canister-mounted sensors. Structures at the fuselage top and bottom provide additional capacity for hemispheric radiometers and other sensors.

EOL and the Lower Atmosphere Observing Facilities (LAOF) partner organizations provide many ground-based and airborne remote sensing platforms. The aircraft investigator handbooks for the C-130 and HIAPER GV provide details on the airborne instrumentation interfaces.

The main categories of measurements include the following

Standard Instrumentation
Cloud Measurements
Radiative Measurements
State Parameters and Wind Measurements
Aerosol Measurements
Gas Measurements
In Situ Vertical Profiling
Other Measurements

EOL's airborne instruments are available to deploy on either the NSF/NCAR GV or C-130, and in many cases, they can fly on either aircraft. A checkmark (✓) in the NSF/NCAR Aircraft column indicates on which aircraft the instruments can fly.

STANDARD INSTRUMENTATION - Provided on all projects  NSF/NCAR Aircraft
Description GV C-130
Static Pressure
Dynamic Pressure
Cabin Pressure
Ambient Temperature
Chilled Mirror Dew Point Temperature
Aircraft Position, Altitude, Ground Relative Speeds, Accelerations and Attitude Angles (IRU)
GPS w/ TerraStar C accuracy
3-Dimensional Wind Fields
Icing Rate (presence of supercooled liquid water)  
King Probe Cloud Liquid Water Content
Remote (infrared) Surface Temperature  
Gas Dump Manifold Pressures  
Forward Digital Video (GV - only with pylons installed)
SATCOM
XCHAT
Real-time Data Transfer to Ground
Real-time Display incl. maps, video, time series etc.

INSTRUMENTS BY REQUEST
CLOUD MEASUREMENTS [EOL] NSF/NCAR Aircraft
Description GV C-130
Cloud Droplet Probe (CDP) (2 – 50 μm range), water droplets, ice crystals
OAP 2DS Cloud Probe (2D-S stereo probe, 10 µm resolution, 128 bins), ice, water
OAP HVPS-3 Precipitation Probe (150 µm resolution, 128 bins)
HOLODEC-II Cloud Particle Imager
King Probe Cloud Liquid Water Content
Rosemount Icing Detector (RICE) (presence of supercooled liquid water)
Counterflow Virtual Impactor (CVI) (with water vapor TDL)
Counterflow Virtual Impactor (CVI) (with water vapor TDL and optional "add-on" CN counter)
OAP 2D-C 10 µm (2-D imaging spectrometer), 20 – 640 µm, ice, water
OAP 2D-C 25 µm (2-D imaging spectrometer), 50 – 1600 µm, ice, water
Gulfstream V High Spectral Resolution Lidar (GV-HSRL)  
HIAPER Cloud Radar (HCR)  
Wyoming Cloud Radar (WCR) [UWyo]  
Wyoming Cloud Lidar (WCL) [UWyo]  

RADIATIVE MEASUREMENTS [EOL] (unless otherwise noted) NSF/NCAR Aircraft
Description GV C-130
Remote (infrared) Sky Temperature (Heitronics KT19.85 radiation pyrometer)
Remote (infrared) Surface Temperature (Heitronics KT19.85 radiation pyrometer)
Radiometric Air Temperature
Shortwave (solar) irradiance (CMP22 Pyranometer - visible broadband radiometer), not stabilized  
Shortwave (solar) irradiance (CMP22 Pyranometer - visible broadband radiometer), stabilized  
Infrared irradiance (CGR4 Pyrgeometer - infrared broadband radiometer), not stabilized  
Infrared irradiance (CGR4 Pyrgeometer - infrared broadband radiometer), stabilized  
HIAPER Airborne Radiation Package (HARP), actinic flux [ACOM]
HIAPER Airborne Radiation Package (HARP), spectral irradiance [ACOM]
Microwave Temperature Profiler (MTP)  

STATE PARAMETERS and WIND MEASUREMENTS [EOL] NSF/NCAR Aircraft
Description GV C-130
Heated Ambient Temperature Sensor
High Rate Ambient Temperature Sensor
Thermo-electronic Dew Point Sensor
Buck Instruments Model CR-2 Cryogenic Hygrometer
Ultraviolet Absorption Hygrometer  
Vertical Cavity Surface-Emitting Laser (VCSEL) Hygrometer
All-Weather Wind Gust Pod (anti-iced)  
Ambient Static Pressure
Laser Air Motion Sensor (LAMS ) [1, 3, and 4 (beam(s)]

AEROSOL MEASUREMENTS [EOL] NSF/NCAR Aircraft
Description GV C-130
Condensation Nucleus (CN) Counter – (Butanol, low altitude only)
Counterflow Virtual Impactor (CVI) (water vapor TDL)  
Counterflow Virtual Impactor (CVI) (with CN counter and water vapor TDL)
Gulfstream V High Spectral Resolution Lidar (GV-HSRL)  
Ultra-High Sensitivity Aerosol Spectrometer (UHSAS), 0.06 - 1 µm, aerosols
Auto Giant Nuclei Impactor (GNI) (sea salt, 2-30 μm), 0.4 µm resolution, aerosols, salt  
Manual GNI Giant Aerosol Impactor (sea-salt, 2 – 32 μm range)  
Passive Cavity Aerosol Spectrometer Probe (PCASP) (0.1 – 3 μm range)  

GAS MEASUREMENTS [EOL and ACOM] NSF/NCAR Aircraft
Description GV C-130
Airborne Carbon Dioxide (CO₂), Methane (CH₄), Carbon Monoxide (CO), and Water Vapor [ACOM]
Aero-Laser Carbon Monoxide (CO) [ACOM]
QCL Carbon Monoxide (CO) and Nitrous Oxide (N₂O) [ACOM]
Water Vapor Isotopic Analyzer (WVISA) [EOL]
Fast Ozone (O3) [ACOM]
Total Organic Gas Analyzer (TOGA) (C2 - C10 organic range) [ACOM]
Airborne Whole Air Sampler (AWAS) [EOL]
Chemical Ionization Mass Spectrometer (CIMS) (SO2, HNO3, HNO4, HNOand others) [EOL]
Medusa Flask Sampler [EOL]
Airborne Oxygen Analyzer (AO2) [EOL]
NO and NO2 [ACOM]

IN SITU VERTICAL PROFILING [EOL] NSF/NCAR Aircraft
Description GV C-130
AVAPS® Dropsonde System

OTHER MEASUREMENTS NSF/NCAR Aircraft
Description GV C-130
Digital Video (forward, down, side) with optional date/time stamp
HIAPER Modular Inlets (HIMIL inlets)

 

A separate list containing only decommissioned instruments is also maintained.