ADM-Aeolus retrieval algorithms for aerosol and cloud products

Flamant, Pierre H.; Cuesta, Juan; Denneulin, Marie-Laure; Dabas, Alain; Huber, Dorit

doi:10.3402/tellusa.v60i2.15182

Cited by 18 publications

(25 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…ADM-Aeolus will also deliver height profiles of Mie and Rayleigh co-polarized backscatter and extinction coefficients, scattering ratios and lidar ratios [6] along the lidar line-of-sight. From these parameters it is possible to derive cloud and aerosol information such as layer height, multi- layer cloud and aerosol stratification, cloud and aerosol optical depths (integrated light-extinction profiles), and some information on cloud/aerosol type (lidar ratio).…”

Section: Products and Product Requirementsmentioning

confidence: 99%

ESA’s Spaceborne Lidar Mission ADM-Aeolus; Recent Achievements and Preparations for Launch

Straume

Elfving

Wernham

et al. 2016

EPJ Web of Conferences

View full text Add to dashboard Cite

Within ESA's Living Planet Programme, the Atmospheric Dynamics Mission (ADM-Aeolus) was chosen as the second Earth Explorer Core mission in 1999. It shall demonstrate the potential of high spectral resolution Doppler Wind lidars for operational measurements of wind profiles and their use in Numerical Weather Prediction (NWP). Spin-off products are profiles of cloud and aerosol optical properties. ADM-Aeolus carries the novel Doppler Wind lidar instrument ALADIN. Recently the two ALADIN laser transmitters were successfully qualified and delivered for further instrument integration. The instrument delivery will follow later this year and the satellite qualification and launch readiness is scheduled for 2016.

show abstract

Section: Products and Product Requirementsmentioning

confidence: 99%

ESA’s Spaceborne Lidar Mission ADM-Aeolus; Recent Achievements and Preparations for Launch

Straume

Elfving

Wernham

et al. 2016

EPJ Web of Conferences

View full text Add to dashboard Cite

show abstract

“…Thus, L2B products are intermediate between L1B and L2C data. Level-2A products (information on aerosol and cloud layer optical properties) are described by Flamant et al (2008). The operational production of L2B data will be done at ECMWF slightly behind real time, just before the assimilation (and production of L2C) is carried out.…”

Section: The Scope and Purpose Of The Aeolus Wind Retrieval Algorithmsmentioning

confidence: 99%

“…The signal amplitudes also provide product confidence data, including error quantifiers, for the wind and particle information. Although more details on the measurement principles underpinning the instrument are given in other papers from this volume Flamant et al, 2008) and elsewhere , we summarize here the points most relevant for understanding the Level-2B wind retrieval algorithms. The solid curve in fig.…”

Section: The Adm-aeolus Instrumentmentioning

confidence: 99%

The ADM-Aeolus wind retrieval algorithms

Tan

Andersson

Kloe

et al. 2008

Tellus A: Dynamic Meteorology and Oceanography

Self Cite

View full text Add to dashboard Cite

International audienceThe ADM-Aeolus is primarily a research and demonstration mission flying the first Doppler wind lidar in space. Flexible data processing tools are being developed for use in the operational ground segment and by the meteorological community. We present the algorithms developed to retrieve accurate and representative wind profiles, suitable for assimilation in numerical weather prediction. The algorithms provide a flexible framework for classification and weighting of measurement-scale (1–10 km) data into aggregated, observation-scale (50 km) wind profiles for assimilation. The algorithms account for temperature and pressure effects in the molecular backscatter signal, and so the main remaining scientific challenge is to produce representative winds in inhomogeneous atmospheric conditions, such as strong wind shear, broken clouds, and aerosol layers. The Aeolus instrument provides separate measurements in Rayleigh and Mie channels, representing molecular (clear air) and particulate (aerosol and clouds) backscatter, respectively. The combining of information from the two channels offers possibilities to detect and flag difficult, inhomogeneous conditions. The functionality of a baseline version of the developed software has been demonstrated based on simulation of idealized case

show abstract

“…Airborne HSRLs at 532 nm using iodine vapor filters to reject aerosol scattering have been successfully developed and demonstrated by the NASA Langley Research Center [14,15] and the German Aerospace Center (DLR) [16][17][18][19], respectively. In the near future, the Doppler wind lidar Atmospheric Laser Doppler Instrument (ALADIN) [20,21] of the European Space Agency's (ESA) Atmospheric Dynamics Mission (ADM) [22,23], which uses a Fabry-Perot interferometer and a Fizeau interferometer at 355 nm for Rayleigh and Mie detection, respectively, will be the first HSRL in space [24,25]. As part of ESA's Earth Clouds, Aerosols, and Radiation Explorer (EarthCARE) mission [26], the HSRL Atmospheric Lidar (ATLID) at 355 nm is planned to be employed for direct aerosol extinction measurements with a Fabry-Perot interferometer [27].…”

Section: Introductionmentioning

confidence: 99%

“…The information of molecular scattering can be obtained by using iodine vapor filters [11][12][13] or Fabry-Perot interferometers [24,25,27]. With an iodine vapor filter, the narrowband aerosol Mie scattering can be suppressed by a factor of 10 −6 − 10 −5 [17], while the wings of the molecular scattering can pass through the iodine vapor filter.…”

Section: Introductionmentioning

confidence: 99%

Influence of molecular scattering models on aerosol optical properties measured by high spectral resolution lidar

Liu

Esselborn²,

Wirth³

et al. 2009

Appl. Opt.

View full text Add to dashboard Cite

The influence of molecular scattering models on aerosol optical properties measured by high spectral resolution lidar (HSRL) is experimentally investigated and theoretically evaluated. The measurements analyzed in this study were made during three field campaigns by the German Aerospace Center airborne HSRL. The influence of the respective theoretical model on spaceborne HSRL retrievals is also estimated. Generally, the influence on aerosol extinction coefficient can be neglected for both airborne and spaceborne HSRLs. However, the influence on aerosol backscatter coefficient depends on aerosol concentration and is larger than 3% (6%) at ground level for airborne (spaceborne) HSRLs, which is considerable for the spaceborne HSRL, especially when the aerosol concentration is low. A comparison of the HSRL measurements and coordinated ground-based sunphotometer measurements shows that the influence of the model is observable and comparable to the measurement error of the lidar system.

show abstract

ADM-Aeolus retrieval algorithms for aerosol and cloud products

Cited by 18 publications

References 0 publications

ESA’s Spaceborne Lidar Mission ADM-Aeolus; Recent Achievements and Preparations for Launch

ESA’s Spaceborne Lidar Mission ADM-Aeolus; Recent Achievements and Preparations for Launch

The ADM-Aeolus wind retrieval algorithms

Influence of molecular scattering models on aerosol optical properties measured by high spectral resolution lidar

Contact Info

Product

Resources

About