Skip Navigation
NASA Logo - Jet Propulsion Laboratory      
JPL Home Earth Solar System Stars & Galaxy Technology
Jet Propulsion Laboratory

Welcome to the NDACC Lidar Working Group Website
(hosted by JPL)

The international Network for the Detection of Atmospheric Composition Change (NDACC) is composed of more than 70 high-quality, research stations for observing and understanding the physical and chemical state of the upper troposphere, stratosphere and mesosphere, and for assessing the impact of changes in the stratosphere on the underlying troposphere and on global climate.

As part of this network, about thirty groundbased Lidar (Light Detection And Ranging) instruments deployed worldwide from Pole to Pole are monitoring atmospheric ozone, temperature, aerosols, water vapour, and polar stratospheric clouds. This laser-based active remote sensing technique has been used widely for several decades in environmental science and chemistry, and has contributed significantly to the validation of space-based measurements.

While the NDACC remains committed to monitoring changes in the stratosphere with an emphasis on the long-term evolution of the ozone layer, its priorities have broadened considerably to encompass issues such as the detection of trends in overall atmospheric composition and understanding their impacts on the stratosphere and troposphere, and establishing links between climate change and atmospheric composition.

To ensure quality and consistency of the NDACC lidars operation and products, a number of protocols have been formulated covering such topics as validation, measurements and instruments intercomparisons, and theory and analysis. The members of the NDACC Lidar Working Group (LWG) are committed to follow the principles of these protocols, and the LWG meets every two years to review and coordinate the activities necessary to the valuable contribution of the lidars to NDACC.

Privacy / Copyrights blank navigation bar blank navigation bar blank navigation bar
FIRST GOV JPL External Clearance No. CL XX-XXXX NASA Home Page
Site Manager: Thierry Leblanc
Webmaster: Patrick Wang
Jet Propulsion Laboratory NASA Home Page California Institute of Technology