NSF/NCAR HIAPER GV Request Guidance

NSF/NCAR HIAPER Overview

The NSF/NCAR High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER) is an extensively modified Gulfstream V business jet available for airborne research. HIAPER has a 10-hour flight endurance, a range of 5,000 nautical miles and a payload capacity of 5,600 lbs. The aircraft includes one up- and two downward looking optical ports, aperture pads, and wing mounting points. Capable of reaching altitudes above 45,000 feet, the aircraft enables scientists to collect data at the tops of storms and the lower edge of the stratosphere. The Earth Observing Laboratory operates the aircraft within the National Center for Atmospheric Research.

Configuration: Airborne research platform
Number of available systems: 1

NSF/NCAR HIAPER GV Contacts

Dr. Pavel Romashkin / pavel@ucar.edu / (303) 497-1027 (Requests & Schedules)

Airborne Instrumentation

Each research payload is unique and will typically consist of some combination of EOL, ACOM (Atmospheric Chemistry Observations & Modeling) and user-supplied instrumentation. The tables below list available airborne sensors and measurements. For a more detailed description of the airborne instrumentation, see www.eol.ucar.edu/aircraft-instrumentation. Please note that different instruments require different levels of support.

RAF can supply several types of trace gas and small aerosol inlets (HIMIL unheated, HIMIL anti-iced, aft-facing, all with PFA or stainless steel tubing, with or without sample line heating).

IMPORTANT NOTE

Prior to submitting this request, it is required to communicate with the appropriate airborne instrumentation contact(s) about the instruments listed below to determine if the basic payload request can be supported and/or if it will require additional resources.

[EOL] Dr. Julie Haggerty / haggerty@ucar.edu / (303) 497-1090
[ACOM] Dr. Geoff Tyndall / tyndall@ucar.edu / (303) 497-1472

In building an aircraft payload, note that the payload consist of:

  1. Standard instrumentation: This is a suite of instruments that is permanently installed on the NSF/NCAR GV airplane, and these instruments provide data on all airborne projects. See the table below.
  2. Requestable instruments: This an extensive list of instruments that are requestable to fly on the NSF/NCAR GV, and are provided by NCAR/EOL and NCAR/ACOM. See the table below.
  3. User-supplied instruments: PIs may request to include thier own instruments in the payload that complement the NCAR part of the payload. See the LAOF Aircraft User-Supplied Airborne Instrumentation Form that is uploaded in PRESTO in the facility request form.

Project-specific limitations of the capabilities of the standard instruments and requestable instruments will be identified by EOL and ACOM at the time of the feasibility study and will be discussed with the requesting investigators.

Payload Limitations

The number of requested instruments routinely exceeds the available space on the aircraft. We, therefore, ask PIs to indicate the priority of each measurement in addressing their research goals. The rating to be used is as follows:

Mission Critical
Useful / Desireable
Not Requested

Wing Store Configurations

Basic information on possible wing store configurations, rack space requirements, and operator status are included in the tables. There are a total of 12 wing pod canister positions. On the HIAPER GV, there are three basic wing store configuration options:

Configuration 1: 6 pylons (12 canisters)
Configuration 2: 2 pylons (4 canisters)
Configuration 3: 6 pylons (8 canisters and 2 large pods)

User-supplied Instrumentation 

Detailed information on specific systems and platform infrastructure related to mounting user-supplied equipment can be found in the NSF/NCAR HIAPER GV Investigator Handbook. All user-supplied equipment must meet RAF safety and design specifications. 

NSF/NCAR HIAPER GV STANDARD INSTRUMENTATION - Provided on all projects 
Description Max. Data Rate Location Sensor Quantity Operators
Pitot-static Pressures 25 sps Fuselage 1 0
Static Pressure 25 sps Fuselage 2 0
Dynamic Pressure 25 sps Fuselage and radome 2 0
Cabin Pressure 1 sps Electronics bay 1 0
Ambient Temperature 1 sps Fuselage 2-4 0
Chilled Mirror Dew Point Temperature 1 sps Radome 2 0
Aircraft Position, Altitude, Ground Relative Speeds, Accelerations and Attitude Angles (IRU) 1 – 50 sps Electronics bay 2 0
GPS w/ TerraStar C accuracy 10 sps ADS rack 1 0
3-Dimensional Wind Fields 25 sps Radome 1 set 0
Gas Dump Manifold Pressures 1 sps Wall tubes 2 0
Forward Digital Video (only with pylons installed) 1 fps Wing pylon 1 0
SATCOM N/A ADS rack -- --
XCHAT N/A N/A -- --
Real-time Data Transfer to Ground Variable N/A -- --
Real-time Display incl. maps, video, time series etc. N/A N/A -- --

NSF/NCAR HIAPER GV INSTRUMENTS BY REQUEST [EOL]
CLOUD MEASUREMENTS
Description Inlet or Max. Data Rate Location Rack Space Operators
Cloud Droplet Probe (CDP) (2 – 50 μm range), water droplets, ice crystals 10 sps Wing pod canister 0 0
OAP 2DS Cloud Probe (2D-S stereo probe, 10 - 1280 µm resolution, 128 bins), ice, water Asynchronous Wing pod canister ¼ 0
OAP HVPS-3 Precipitation Probe (150 µm resolution, 128 bins) Asynchronous Wing pod canister ¼ 0
HOLODEC-II Cloud Particle Imager 3 sps Wing pod canister ¼ 0
King Probe Cloud Liquid Water Content 25 sps Wing pylon 0 0
Rosemount Icing Detector (RICE) (presence of supercooled cloud water) 1 sps Wing pylon 0 0
Counterflow Virtual Impactor (CVI) (water vapor TDL) Special Cabin w/ aperture 1 1
OAP 2D-C 10 µm (2-D imaging spectrometer) : 20 - 640 µm, ice, water; special considerations B N/A Wing pod canister 0 0
OAP 2D-C 25 µm (2-D imaging spectrometer) : 50 - 1600 µm, ice, water, special considerations B N/A Wing pod canister 0 0

RADIATIVE MEASUREMENTS [EOL] (unless otherwise noted)
Description Inlet or Max. Data Rate Location Rack Space Operators
Remote (infrared) Sky Temperature (KT19.85 Heimann radiometer), 0 up, 1 gerdown, not stabilized 1 sps Cabin w/ aperture 0 0
Remote (infrared) Surface Temperature (KT19.85 Heimann radiometer), 0 up, 1 down, not stabilized 1 sps Cabin w/ aperture 0 0
Radiometric Air Temperature 1 sps Cabin w/ aperture 0 0
Shortwave (solar) irradiance (CMP22 Pyranometer - visible broadband radiometer), 1 up / 2 down*, not stabilized, fixed 1 sps Special aperture 0 0
Infrared irradiance (CGR4 Pyrgeometer - infrared broadband radiometer), 1 up / 2 down*, not stabilized, fixed 1 sps Special aperture 0 0
HIAPER Airborne Radiation Package (HARP) (spectrally resolved actinic flux and irradiance) [ACOM] 0.17 sps and 1 sps, resp. Tail, cabin & special aperture 1 0
Microwave Temperature Profiler (MTP)  0.06 sps Wing pod canister 0

*Mounting positions for the CMP22 and CGR4 can be used interchangeably for either sensor.

STATE PARAMETERS and WIND MEASUREMENTS [EOL]
Description Inlet or Max. Data Rate Location Rack Space Operators
Fast Ambient Temperature 25 sps Fuselage 0 0
Vertical Cavity Surface-Emitting Laser (VCSEL) Hygrometer 25 sps Aperture 0 0
All-Weather Wind Gust Pod (anti-iced) 25 sps Wing pod canister 0 0
Laser Air Motion Sensor (LAMS ) [1, 3, and 4 (beam(s)] 50 sps Wing pod canister ½ 0

AEROSOL MEASUREMENTS [EOL]
Description Inlet or Max. Data Rate Location Rack Space Operators
Condensation Nucleus (CN) Counter – (Butanol, low altitude only) 25 sps Cabin w/ aperture ¼ 0
Ultra-High Sensitivity Aerosol Spectrometer (UHSAS), 0.06 - 1 µm, aerosols 10 sps Wing pod canister 0
Auto Giant Nuclei Impactor (GNI) (sea salt, 2-30 μm), 0.4 µm resolution, aerosols, salt Special Aperture 0

GAS MEASUREMENTS [EOL and ACOM]  
Description Inlet or Max. Data Rate Location Rack Space Operators Special Considerations*
Picarro CO₂, Methane (CH₄), Carbon Monoxide (CO), and Water Vapor [ACOM] Custom HIMIL, 0.7 sps Cabin w/ aperture ½ 0 D
Aero-Laser Carbon Monoxide (CO)^ [ACOM] Custom HIMIL, 0.5 sps Cabin w/ aperture ½ 0 D
Aerodyne CO and Nitrous Oxide  (N₂O) Custom HIMIL, 1-10 sps Cabin w/ aperture ½ 0 D
Water Vapor Isotopic Analyzer (WVISO) [EOL] HIMIL, SDI, CVI, 5 sps Cabin w/ aperture ½ 0  
Fast Ozone (O3) [ACOM] HIMIL, 1 - 10 sps Cabin w/ aperture 3/4 0 D
Total Organic Gas Analyzer (TOGA) (C2 - C10 organic range) [ACOM] HIMIL, 0.015 sps Cabin w/ aperture 1 1 A,D
Airborne Whole Air Sampler (AWAS) [EOL] HIMIL, asynchronous Cabin w/ aperture 1 0/1  
Chemical Ionization Mass Spectrometer (CIMS) (SO2, HNO3, HNO4, HNOand others) [EOL] HIMIL, 1 sps Cabin w/ aperture 1 1 B,C,D
Medusa Flask Sampler [EOL] Custom HIMIL, 32 samples per flight Cabin w/ aperture 1 0/1 A,B,C,D
Airborne Oxygen Analyzer (AO2) [EOL] Custom HIMIL, 0.2 sps Cabin w/ aperture 1 1 A,B,C,D
NO and NO2 [ACOM] HIMIL, 0.3 sps Cabin w/ aperture 1 0 C,D

^The Aerodyne is preferred for CO measurements when only one instrument is required.

*Special Considerations:
A ­ Instrument requires a dedicated operator on board the aircraft.
B ­ Special software tools are required for routine processing, display and analysis of the data acquired by this instrument.
C ­ Data recorded on a separate data acquisition system, not on RAF's ADS.
D ­ Data acquired by this instrument requires unique post-processing.
E ­ This instrument requires a separate request form

RAF can supply several types of gas and small aerosol inlets (HIMIL unheated, HIMIL anti-iced, aft facing, all with PFA or stainless steel tubing, with or without sample line heating).

IN SITU VERTICAL PROFILING [EOL]
Description Inlet or Max. Data Rate Location Rack Space Operators
Dropsonde profiles of pressure, temperature, relative humidity, and winds. 2 Hz thermodynamic, 4 Hz winds Dropsonde launcher 1 1 (may be remote)

 

OTHER MEASUREMENTS
Description Inlet or Max. Data Rate Location Rack Space Operators
Digital Video (forward, down, side) with optional date/time stamp 1 fps Standard windows 0 0