Follow this link to go to the text only version of nasa.gov
Spacer
Follow this link to skip to the main content
Spacer
NASA - National Aeronautics and Space Administration
spacer spacer spacer
+ NASA Earth Sciences
+ NASA Home
+ Ames Home
+ Low Bandwidth
spacer
spacer Go
Spacer
Spacer
Spacer
+ SG Home
Earth Science Division
EARTH SCIENCE DIVISION
ATMOSPHERIC SCIENCE
BIOSPHERIC SCIENCE
AIRBORNE SCIENCE OFFICE
ESPO
ASTL
calendar icon+ Calendar
+ Org Chart
+ Staff
+ Awards
+ Publications
+ Seminars
+ Postdoc Opportunities
+ Earth Image of the Day
New Images
Spacer
Earth Science Division Banner
Spacer
Spacer
Spacerajax_banner
Home           Instruments           Team Members
Missions heading
Ozone plot
Ozone mixing ratios measured along
a typical flight track originating from
NASA Ames Research Center.

AJAX has recently begun a series of upwind/downwind ozone profile measurements intended to address the inflow of ozone during a variety of weather patterns and seasonal cycles. Vertical profiles of ozone over the San Joaquin Valley, coupled with upwind profiles over the Pacific Ocean, provide direct mapping of the vertical and horizontal ozone concentrations offshore and inland, to better understand trans-Pacific pollution transport and its effects on air quality in California.

In a second type of science flight, vertical profiles of greenhouse gases over Railroad Valley, NV, are collected in support of the Greenhouse gases Observing Satellite (GOSAT) total column measurements. AJAX provides calibrated, in-situ altitude-resolved vertical profiles of CO2 and CH4 from 25,000 ft down to the surface. These data are converted into a format comparable to satellite findings before being compared to the column measurements provided by GOSAT.

Comparisons of CO2 and CH4

Carbon dioxide (left) and methane (right) mixing ratios measured during descent over Railroad Valley, NV on 25 June 2011.

Regular vertical profiles of CO2 and CH4 continue to be collected over Railroad Valley, and the AJAX team is evaluating future collaborations with the JPL Atmospheric Infrared Sounder (AIRS) satellite team as well.


 

Ajax team installing instrument pods
AJAX team members mount the instru-
mented wing pod onto the Alpha Jet in
preparation for a research flight.

Both instruments are housed in the starboard external wing pod. Each has a separate inlet and has been tested under a wide variety of flight maneuvers.



FirstGov - Your First Click to the US Government
+ Freedom of Information Act
+ Budgets, Strategic Plans and Accountability Reports
+ The President's Management Agenda
+ NASA Privacy Statement, Disclaimer, and Accessibility Certification
+ Inspector General Hotline
+ Equal Employment Opportunity Data Posted Pursuant to the No Fear Act
+ Information-Dissemination Priorities and Inventories

Click to visit the NASA Homepage
NASA Official: Steve Hipskind
Webmaster: Gailynne Bouret
Last Updated: July 22, 2013

+ Contact NASA
Spacer
Spacer
Spacer