EAQUATE - An International Experiment For Hyper-spectral Atmospheric Sounding Validation

Smith, William L.; Taylor, Jonathan P.; Cuomo, V.; Larar, Allen M.; Antonelli, P.; Mango, S.; Serio, C.; Zhou, Daniel K.; Pappalardo, Gelsomina

doi:10.1364/fts.2005.jma4

Cited by 3 publications

(5 citation statements)

References 11 publications

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“…An international experiment, European Aqua Thermodynamic Experiment (EAQUATE), performed in both Italy and the United Kingdom during September 2004, demonstrated certain ground-based and airborne systems useful for validating hyperspectral sounding observations from satellites throughout this decade and the next. The focus of this initial experiment was primarily placed on the validation of the AIRS instrument data from the EOS Aqua satellite (Cuomo et al, 2005;Smith et al, 2005b;Taylor et al, 2007). A great deal of effort has been given to the data collected during EAQUATE.…”

Section: Introductionmentioning

confidence: 99%

Retrieval validation during the European Aqua Thermodynamic Experiment

Zhou

Smith

Cuomo

et al. 2007

Q.J.R. Meteorol. Soc.

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Atmospheric and surface thermodynamic parameters retrieved with advanced hyperspectral remote sensors aboard Earth observing satellites are critical to weather prediction and scientific research. The retrieval algorithms and retrieved parameters from satellite sounders must be validated to demonstrate the capability and accuracy of both observation and data processing systems. The European Aqua Thermodynamic Experiment (EAQUATE) was conducted not only for validation of the Atmospheric InfraRed Sounder on the Aqua satellite, but also for assessment of validation systems of both ground-based and aircraft-based instruments that will be used for other satellite systems, such as the Infrared Atmospheric Sounding Interferometer on the European MetOp satellite, the Cross-track Infrared Sounder from the National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project and the continuing series of NPOESS satellites. Detailed intercomparisons were conducted and presented using different retrieval methodologies: measurements from airborne ultraspectral Fourier transform spectrometers, aircraft in situ instruments, dedicated dropsondes and radiosondes, ground-based Raman lidar, as well as the European Centre for Medium-range Weather Forecasting modelled thermal structures. The results of this study not only illustrate the quality of the measurements and retrieval products, but also demonstrate the capability of the validation systems put in place to validate current and future hyperspectral sounding instruments and their scientific products.

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Section: Introductionmentioning

confidence: 99%

Retrieval validation during the European Aqua Thermodynamic Experiment

Zhou

Smith

Cuomo

et al. 2007

Q.J.R. Meteorol. Soc.

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“…In this section, the synergy between the microwave and lidar techniques has been exploited to identify the presence of supercooled liquid water and to characterize the microphysical processes occurring in high-level clouds. To describe this synergy, a case study relative to detection of an high-level cloud has been selected: the measurements have been performed during the night of the 6-7 September 2004 in the frame of the Italian phase of EAQUATE (European AQUA Thermodynamic Experiment) international measurement campaign 38,39 held in Southern Italy during September 2004. The time series of the vertical profile of the 532 nm aerosol backscattering coefficient for the whole measurement night is reported in Figure 5.1.…”

Section: Cirrus Cloudsmentioning

confidence: 99%

CNR-IMAA integrated measurements for the atmospheric profiling

et al. 2007

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The synergistic use of the measurements carried out using active and passive techniques represent a powerful solution to fully exploit the capabilities of each remote sensing techniques and to contemporarily overrun its main limitations. The ground-based facility operational at the CNR-IMAA for the study of the atmosphere is an optimal site where testing possible synergies between active and passive techniques for improving the profiling capabilities of atmospheric key variables, such as aerosol, water vapor and clouds.The combination of the measurements provided by a lidar and a passive sensor is a particularly promising approach because it puts together the high-resolution measurements obtained using a lidar and the operational capabilities typical of passive sensors. In particular, the combination of the Raman lidar and sunphotometry measurements allows to describe the aerosol optical and microphysical properties, supporting the lidar retrievals during daytime and in presence of thick clouds. Moreover, the use of Raman lidar and microwave measurements, integrated using an approach based on the Kalman filter, is an optimal way to provide high-resolution measurements of the tropospheric water vapor in nearly all weather conditions. A strong improvement in the supercooled liquid water retrieval, obtained through the inversion of the microwave brightness temperature, is also achievable using the cloud base height information retrieved using the lidar backscattering ratio profile to constrain the microwave retrieval.

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“…Two Proteus flights dedicated to AIRS validation flown over Potenza were scheduled when the Aqua satellite was also passing over Potenza during the nights of 7-8 and 9-10 September 2004. During the second phase over the United Kingdom, the Proteus aircraft, together with the UK's Facility for Airborne Atmospheric Measurements (FAAM) BAe146 aircraft 14 , made two dedicated flights for AIRS validation during the days of both 14 and 18 September 2004. Numerous in-situ sensors and remote sensing instruments flew on BAe146 aircraft, and dropsondes were released from the BAe146 during the experiments.…”

Section: Validation On Thermodynamics Productsmentioning

confidence: 99%

“…Proteus and BAe146 were flying at approximately the same location and time for these two dates. A series of 5 and 9 dropsondes were released from BAe146 in a close location and time on 14 and 18 September, respectively 14 . Figure 5 shows the different atmospheric conditions from day to day captured by the measurements.…”

Section: And 18 September Over Celtic Sea United Kingdommentioning

confidence: 99%

“…An international experiment, EAQUATE (European Aqua Thermodynamic Experiment), was held during September 2004 in Italy and the United Kingdom to demonstrate certain ground-based and airborne systems useful for validating hyperspectral sounding observations from satellites during this decade and the next. The focus of this initial experiment was placed on validation of the AIRS instrument on the EOS Aqua satellite [14][15] . A great deal of effort has been given to the data collected during EAQUATE.…”

Section: Introductionmentioning

confidence: 99%

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AIRS retrieval validation during the EAQUATE

et al. 2006

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Atmospheric and surface thermodynamic parameters retrieved with advanced hyperspectral remote sensors of Earth observing satellites are critical for weather prediction and scientific research. The retrieval algorithms and retrieved parameters from satellite sounders must be validated to demonstrate the capability and accuracy of both observation and data processing systems. The European AQUA Thermodynamic Experiment (EAQUATE) was conducted mainly for validation of the Atmospheric InfraRed Sounder (AIRS) on the AQUA satellite, but also for assessment of validation systems of both ground-based and aircraft-based instruments which will be used for other satellite systems such as the Infrared Atmospheric Sounding Interferometer (IASI) on the European MetOp satellite, the Cross-track Infrared Sounder (CrIS) from the NPOESS Preparatory Project and the following NPOESS series of satellites. Detailed inter-comparisons were conducted and presented using different retrieval methodologies: measurements from airborne ultraspectral Fourier transform spectrometers, aircraft in-situ instruments, dedicated dropsondes and radiosondes, and ground based Raman Lidar, as well as from the European Center for Medium range Weather Forecasting (ECMWF) modeled thermal structures. The results of this study not only illustrate the quality of the measurements and retrieval products but also demonstrate the capability of these validation systems which are put in place to validate current and future hyperspectral sounding instruments and their scientific products.

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EAQUATE - An International Experiment For Hyper-spectral Atmospheric Sounding Validation

Cited by 3 publications

References 11 publications

Retrieval validation during the European Aqua Thermodynamic Experiment

Retrieval validation during the European Aqua Thermodynamic Experiment

CNR-IMAA integrated measurements for the atmospheric profiling

AIRS retrieval validation during the EAQUATE

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