The Meteorological Measurement System (MMS), within the NASA Ames Atmospheric Science Branch (code SGG), is a PI-led airborne instrument that provides calibrated, science quality, in situ state measurements of static pressure, static temperature, and three-dimension wind. Accurate measurements of these quantities require judicious choices of sensor locations, repeated laboratory & flight calibrations, proper corrections for compressibility, adiabatic heating and flow distortion.
| Primary Products 1-20 Hz | Typical value | Precision | Accuracy |
| Pressure | ~ 60 mb | ± 0.003 mb | ± 0.3 mb |
| Temperature | ~180 K | ± 0.05 K | ± 0.3 k |
| Horizontal Wind | ~ 30 m s-1 | ± 0.01 m s-1 | ±0.5 m s-1 |
| Vertical Wind | < 1 m s-1 | ± 0.05 m s-1 | ± 0.1 m s-1 |
Derived Parameter:
Potential Temperature, True-Air-Speed, Turbulence Dissipation Rate, Reynolds Number
Measured Parameters:
GPS Positions, Velocities, Accelerations, Pitch, Roll, Heading, Angle-of-Attack, Angle-of-Sideslip, Dynamic Total Pressures, Total Temperatures
Integrated Platforms: ER-2, DC-8, WB-57F, GLOBAL HAWK, SIERRA UAV, ALPHAjet
Timeline:
| TIME | MISSION | LOCATION | PLATFORM |
| Nov 2023 - Mar 2024 | ASIA-AQ | Asia | DC-8 |
| Oct - Nov 2023 | EcoDemonstrator | Seattle, WA | DC-8 |
| Apr - Aug 2023 | AEROMMA | Palmdale, CA & Dayton, OH | DC-8 |
| Feb - Mar 2023 | SABRE | Fairbanks, AK | WB-57 |
| Summer 2022 | ACCLIP | Korea | WB-57 |
| Summer 2022 | DCOTSS | Salina, KS | ER-2 |
| Feb 2022 | SABRE | Houston, TX | WB-57 |
| Summer 2021 | ACCLIP 2021 | Houston, TX | WB-57 |
| Summer 2021 | DCOTSS | Salina, KS | ER-2 |
| Summer 2019 | FIREX-AQ & SARP2019 | Boise, ID & Salina, KS | DC-8 |
| Aug 2018 | HIWC & SARP2018 | Fort Lauderdale, FL & Kona, HI | DC-8 |
| Apr - May 2018 | ATom-4 | Pacific & Atlantic, Pole-to-Pole | DC-8 |
| Sep - Oct 2017 | ATom-3 | Pacific & Atlantic, Pole-to-Pole | DC-8 |
| Jan - Feb 2017 | ATom-2 | Pacific & Atlantic, Pole-to-Pole | DC-8 |
| Oct 2016 | POSIDON | Guam | WB-57 |
| July - Aug 2016 | ATom-1 | Pacific & Atlantic, Pole-to-Pole | DC-8 |
| Oct 2015 | VIRGAS | Houston, TX | WB-57 |
| 2013 - ongoing | AJAX | NASA Ames | Alpha Jet |
| Mar 2015 | ATTREX-4 | NASA Dryden | Global Hawk |
| Aug - Sep 2013 | SEAC4RS | Houston, TX | DC-8 & ER-2 |
| Jan - Mar 2014 | ATTREX-3 | Guam | Global Hawk |
| Feb - Mar 2013 | ATTREX-2 | NASA Dryden | Global Hawk |
| May - Jun 2012 | DC3 | Salina, KS | DC-8 |
| Oct - Nov, 2011 | ATTREX-1 | NASA Dryden | Global Hawk |
| May 2011 | RRV | Rail Road Valley, NV | SIERRA |
| Mar 2011 | MACPEX | Houston, TX | WB-57 |
| Sep 2010 | GRIP | Fort Lauderdale, FL & St. Croix | DC-8 |
| Apr - May 2010 | GloPac | NASA Dryden | Global Hawk |
| Jul 2009 | CASIE | Svalbard, Norway | SIERRA |
| Sep 2008 | NOVICE | Houston, TX | WB-57 |
| Jun 2007 | TC4 | San Jose, Costa Rica | DC-8 & WB-57 |
| Aug - Sep 2006 | NAMMA | Sal, Cape Verde | DC-8 |
| Jan - Feb 2006 | CR-AVE | San Jose, Costa Rica | WB-57 |
| Jun 2005 | AVE Houston2 | Houston, TX | WB-57 |
| Apr - May 2004 | MidCix | Houston, TX | WB-57 |
| June - Jul 2002 | CRYSTAL-FACE | Key West, FL | ER-2 & WB-57 |
| Aug - Sep 2001 | CAMEX4 | Jacksonville, FL | DC-8 |
| Jan - Mar 2000 | SOLVE | Kiruna, Sweden | ER-2 |
| Aug - Sep 1998 | CAMEX3 | Cocoa Beach, FL | DC-8 |
| Aug - Nov 1997 | SONEX | Bangor, ME , Shannon, Ireland & Azores | DC-8 |
| Apr - Nov 1997 | POLARIS | Fairbanks, AK & Hawaii | ER-2 |
| Apr - May 1996 | SUCCESS | Salina, KS | ER-2 & DC-8 |
| May 1995 - Sep 1996 | STRAT | Hawaii | ER-2 |
| Apr - Nov 1994 | ASHOE/MAESA | Christchurch, NZ | ER-2 |
| Apr - May 1993 | SPADE-2 | NASA Ames | ER-2 |
| Oct - Nov 1992 | SPADE-1 | NASA Ames | ER-2 |
| Oct 1991 - Mar 1992 | AASE-2 | Fairbanks, AK & Bangor, ME | ER-2 |
| Dec 1988 - Feb 1989 | AASE | Stavanger, Norway | ER-2 |
| Aug - Oct 1987 | AAOE | Punta Arenas, Chile | ER-2 |
| Dec 1986 - Mar 1987 | STEP | Darwin, Australia | ER-2 |
