TAMMS

NASA's Turbulent Air Motion Measurement System

Last Updated on October 10, 2001 at 12:00 PM EST (updates)

Results from a pitching calibation during TRACE P to show data quality

Example of the TAMMS data quality. This maneuver, performed during TRACE P (2001) shows the ability to remove the effects of aircraft motion from the calculation of the vertical wind speed. In addition, the derived vertical winds are within the 10% threshold for accurate vertical winds Lenschow (1986)

TAMMS Background and Current Status

	Measurements are sampled at 50hz and averaged to 20hz for noise filtering
	End products include fast response measurements of the 3-D wind field, temperature, absolute humidity, and chemical constituents (CO₂, SO₂, and O₃)
	Produces eddy correlation fluxes of latent and specific heat (w'q' and w'q') and chemical transport (w'CO₂', w'SO₂', and w'O₃')
	Sensors are currently on-board the NASA's P3-B aircraft, housed at the NASA Wallops Flight Facility (Wallops Island, VA)

Has participated in the following Global Tropospheric Experiments (GTE):

	ABLE 3A & 3B (1988, 1990) - Used a nose boom on-board the WFF Electra
	PEM Tropics A (1996)
	PEM Tropics B (1999)
	TRACE-P (2001)

Participating in the spin up of NASA's Pilot Coastal Study of CO2 fluxes

Current Collaborating Partners and Measurements

	NASA Langley Research Center - CO₂
	NASA Langley Research Center - O₃
	Drexel University - SO₂

TAMMS Data Archive and Availability

Several models of the TAMMS system have been flown on various NASA field missions. The data is managed by the Global Tropospheric Experiment project office and is available from NASA/Langley for the following missions:

	GTE ABLE 3A & 3B
	GTE PEM Tropics A
	GTE PEM Tropics B
	GTE TRACE P

Responsible NASA Official(TAMMS): Bruce Anderson
Curator(TAMMS): Lee Thornhill