differential absorption lidar
Development of a laser for differential absorption lidar measurement of atmospheric carbon dioxide
... St Andrews, North Haugh, St Andrews, KY16 9SS, United Kingdom ABSTRACT In the quest for a better understanding of climate change, greater importance is attached to monitoring the levels of atmospheric carbon dioxide to ...
6
Direct Detection Differential Absorption LIDAR for Multi-Species Atmospheric Sensing in the 2-µm Range
... 3 LATMOS, Université Pierre et Marie Curie, 4 Place Jussieu Paris, France jean-baptiste.dherbecourt@onera.fr Abstract: A direct detection atmospheric differential absorption lidar, based on a high ...
8
3-D water vapor field in the atmospheric boundary layer observed with scanning differential absorption lidar
... 3-D water vapor field in the atmospheric boundary layer observed with scanning differential absorption lidar.. Florian Späth, Andreas Behrendt, Shravan Kumar Muppa, Simon Metzendorf, And[r] ...
20
Intercomparison of atmospheric water vapor soundings from the differential absorption lidar (DIAL) and the solar FTIR system on Mt. Zugspitze
... 2.2 Differential absorption lidar (DIAL) The DIAL method is a laser-based remote sensing tech- nique providing number-density profiles of trace ...molecular absorption of the trace gas to be ...
7
Evaluation of 2-m Pulsed Integrated Path Differential Absorption Lidar for Carbon Dioxide MeasurementTechnology Developments, Measurements, and Path to Space
... the differential ab- sorption lidar technique operating at 2- µm ...path differential absorption lidar was developed, tested, and validated for atmospheric car- bon dioxide ...
9
Estimation of background gas concentration from differential absorption lidar measurements
... Abstract. Approaches are considered to estimate the back- ground concentration level of a target species in the atmo- sphere from an analysis of the measured data provided by the National Physical Laboratory’s ...
12
Differential absorption lidar measurements of water vapor by the High Altitude Lidar Observatory (HALO): Retrieval framework and validation
... of lidar signals at the four wavelengths, attenuating with increasing range from the ...high differential absorption optical depth (DAOD) and sufficient online signal strength, which is demonstrated ...
37
Methane Optical Density Measurements with an Integrated Path Differential Absorption Lidar from an Airborne Platform
... Time series data for flight 1 showing the in-situ CH 4 mixing ratio as measured by the Picarro, the theoretical. 335[r] ...
56
Field-deployable diode-laser-based differential absorption lidar (DIAL) for profiling water vapor
... the lidar community which use a polarization T/R switch to separate the transmit from the receive path – but instead use an annular mirror to divide the telescope ...
15
Analysis of Range Measurements From a Pulsed Airborne CO2 Integrated Path Differential Absorption Lidar
... Airborne lidar measurements were made from the NASA GRC Lear-25 on several ASCENDS sponsored flights during August 2009, including a flight over the Eastern Shore of Virginia and the Chesapeake Bay on August ...
7
Validation of double-pulse 1572 nm integrated path differential absorption lidar measurement of carbon dioxide
... IPDA lidar retrieved XCO 2 compared with Los Gatos in-situ analyzer measured CO 2 concentration is shown in Figure ...from lidar is about 430 ppm with 1.637 ppm standard error. Both lidar and in-situ ...
5
Ground-based integrated path coherent differential absorption lidar measurement of CO 2: foothill target return
... IPDA lidar measurements were about 5 ppm lower than the 5 min running averages of the in situ sensor, because of the spatial difference, the f1uctuation of temper- ature, and the natural variability of CO 2 along ...
11
Evaluation of ECMWF water vapour fields by airborne differential absorption lidar measurements: a case study between Brazil and Europe
... As unbiased water vapour analyses are a prerequisite for accurate modelling of the hydrological cycle, climate or specific processes, the model bias against absolutely cali- brated observations is of interest. Here it ...
11
A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore–Washington, D.C. region
... the lidar capture this strong ozone reservoir, where the difference in the altitude of the reservoir may be attributed to the distance between sites based on the fact that the ozonesonde profile still resides ...
20
A New Differential Absorption Lidar to Measure Sub-Hourly Fluctuation of Tropospheric Ozone Profiles in the Baltimore - Washington D.C. Region
... Individual photons are counted by a transient recorder (LI- 605 CEL TR 20 - 80, GmbH, Germany) at a maximum counting rate of 300 MHz. This process is controlled by LabView soft- ware which was originally developed for ...
26
A novel satellite mission concept for upper air water vapour, aerosol and cloud observations using integrated path differential absorption LiDAR limb sounding
... 6. Significant Challenges As with any new measurement technique that has not yet been demonstrated in space, substantial technological and technical development efforts and risks are associated with the mission concept ...
44
Near/Mid IR Differential Absorption OPO Lidar System for Gas Analysis of the Atmosphere
... OPO lidar system based on KTA and KTP crystals for gas analysis of the ...atmosphere. Lidar measurements of atmospheric gases in the near/mid infrared region have been numerically ...The differential ...
12
A differential lidar system based on a xenon chloride laser
... 1.3.6(b) Fluorescence lid a r uses a la s e r pulse of a wavelength which i s s p e c ific a lly situ a te d a t the absorption peak of the ta rg e t gas. The ta rg e t gas molecules fluoresce over a broad band ...
494
Differential absorption radar techniques: surface pressure
... Received: 13 May 2014 – Published in Atmos. Meas. Tech. Discuss.: 10 June 2014 Revised: 17 October 2014 – Accepted: 24 October 2014 – Published: 27 November 2014 Abstract. Two radar pulses sent at different frequencies ...
12
Extended Kalman Filter SLAM Implementation for a Differential Robot with LiDAR
... Mobile robot localization and mapping with uncertainty using scale-invariant visual landmarks. In Robotics: science and systems (Vol[r] ...
90