Remote sensing of atmospheric NO_2 by employing the continuous-wave differential absorption lidar technique

Remote measurement of atmospheric mercury using differential absorption lidar.

Atomic mercury in the atmosphere was detected by the differential-absorption lidar technique. Laser light at the mercury resonance wavelength of 253.65 nm was generated by anti-Stokes shifting in H(2) of the frequency-doubled output from a Nd:YAG-pumped dye laser. The measurements demonstrate that a concentration of 4 ng/m(3), corresponding to a typical background value, can be detected if a pa...

Advanced sine wave modulation of continuous wave laser system for atmospheric CO(2) differential absorption measurements.

In this theoretical study, modulation techniques are developed to support the Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) mission. A continuous wave (CW) lidar system using sine waves modulated by maximum length (ML) pseudo-noise (PN) codes is described for making simultaneous online/offline differential absorption measurements. Amplitude and phase-shift ...

CSIR – NLC Mobile LIDAR for Atmospheric Remote Sensing

Remote Sensing of Air Pollution by Lidar

Recent progresses in remote sensing of atmospheric pollution using the Lidar technique are presented. 2D and 3D analysis of NO, N02, S02, and 0 3 were performed at high sensitivity under emission and immission conditions. Most attractive results were obtained over large urban areas like Lyon, Stuttgart, Ziirich, Geneva and Berlin. New Lidar systems, based on selfdeveloped Flashlamp-pumped Ti:Sa...

Merlin: an Integrated Path Differential Absorption (ipda) Lidar for Global Methane Remote Sensing

1 Airbus DS GmbH, 81663 Munich, Germany, Email: [email protected] 2 DLR Space Administration, 53227 Bonn, Germany, Email: [email protected] 3 Centre National d'Etudes Spatiales, 31401 Toulouse, France, Email: [email protected] 4 DLR Institute of Atmospheric Physics, 82234 Wessling, Germany, Email: [email protected] 5 Laboratoire de Météorologie Dynamique, 91128 Palaiseau, ...