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Atmospheric Correction for Tower-Based Solar-Induced Chlorophyll Fluorescence Observations at O2-A Band
2019
Remote Sensing
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A series of field measurements were carried out to evaluate the performance of the atmospheric correction method for tower-based SIF observations. ...
The aerosol optical depth (AOD) and radiative transfer path length (RTPL) are found to be the dominant factors influencing the upward and downward transmittances at the oxygen absorption band. ...
Conflicts of Interest: The authors declare no conflict of interest. Remote Sens. 2019, 11, 355 ...
doi:10.3390/rs11030355
fatcat:t6tqaz72ljdg5jajaa3vqcgycq
A Spectral Fitting Algorithm to Retrieve the Fluorescence Spectrum from Canopy Radiance
2019
Remote Sensing
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The novel algorithm is developed and tested on a set of radiative transfer simulations obtained by coupling SCOPE and MODTRAN5 codes, considering different chlorophyll content, leaf area index and noise ...
The reliability of the retrieval algorithm on experimental measurements is evaluated by cross-comparison with F values computed by an independent retrieval method (i.e., SFM at O2 bands). ...
We also thank you Fondazione per il Clima e la Sostenibilità (FCS) for field work and Giulio Borgia owner of Azienda Agricola Le Rogaie for hosting the field experiments. ...
doi:10.3390/rs11161840
fatcat:px7tgj3ycjgxtjqymbfqzsyibq
Estimating bias in the OCO-2 retrieval algorithm caused by 3-D radiation scattering from unresolved boundary layer clouds
2015
Atmospheric Measurement Techniques
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</strong> Due to the complexity of the multiple scattering problem for shortwave radiative transfer in Earth's atmosphere, operational physical retrieval algorithms commonly use a plane parallel radiative ...
The results show that the existing cloud screening algorithm has difficulty identifying sub-field of view (FOV), unresolved clouds that fill less than half of the FOV. ...
The authors thank the Space Science and Engineering Center Technical Computing group for providing cluster computing resources used for the simulations. Edited by: H. Worden ...
doi:10.5194/amt-8-1641-2015
fatcat:vaj4si7r5vb4fbhkcz7yo3ub6e
Retrieving cloud top height in the JEM-EUSO cosmic-ray observation system
2015
EPJ Web of Conferences
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JEM-EUSO will observe the clouds in the field of view of the telescope making use of an atmospheric monitoring system, which consists of a LIDAR and an IR Camera. ...
To retrieve the cloud top height from IR images two different methodologies will be used. The first one is based on stereo vision algorithms and requires two different views of the same scene. ...
The SWA is based on radiometric simulations of the physical problem [7] . The simulations were performed by means of the radiative transfer equation and MODTRAN atmospheric simulation code. ...
doi:10.1051/epjconf/20158903004
fatcat:yoxaqwglbbe6dmnmq5itowi3ta
A Radiative Transfer Simulator for PACE: Theory and Applications
2022
Frontiers in Remote Sensing
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A radiative transfer simulator was developed to compute the synthetic data of all three instruments onboard NASA's Plankton Aerosol, Cloud, ocean Ecosystem (PACE) observatory, and at the top of the atmosphere ...
The PACE simulator is wrapped around a monochromatic radiative transfer model based on the successive order of scattering (RTSOS), which accounts for atmosphere and ocean coupling, polarization, and gas ...
Development of an Algorithm to Retrieve Aerosol Optical Properties over Water Using an Artificial Neural Network Radiative Transfer Scheme: First Result from GOSAT-2/CAI-2. IEEE Trans. Geosci. ...
doi:10.3389/frsen.2022.840188
fatcat:he2ejiba4jcmvkhkbqsrbatkc4
Measurements of Pollution In The Troposphere (MOPITT) validation through 2006
2009
Atmospheric Chemistry and Physics
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Comparisons of aircraft measurements of carbon monoxide (CO) to the retrievals of CO using observations from the Measurements of Pollution in The Troposphere (MOPITT) instrument onboard the Terra satellite ...
Observations made as part of the NASA INTEX-B and NSF MIRAGE field campaigns during March-May 2006 are used to validate the MOPITT CO retrievals, along with routine samples from 2001 through 2006 from ...
The authors acknowledge for their strong support the European Commission, Airbus and the Airlines (Lufthansa, Austrian, Air France) who carry free of charge the MOZAIC equipment and perform the maintenance ...
doi:10.5194/acp-9-1795-2009
fatcat:sexofakak5dgtmvgdpbjnmy26a
Measurements of Pollution In The Troposphere (MOPITT) validation through 2006
2008
Atmospheric Chemistry and Physics Discussions
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Comparisons of aircraft measurements of carbon monoxide (CO) to the retrievals of CO using observations from the Measurements of Pollution in The Troposphere (MOPITT) instrument onboard the Terra satellite ...
Observations made as part of the NASA INTEX-B and NSF MIRAGE field campaigns during March-May 2006 are used to validate the MOPITT CO retrievals, along with routine samples from 2001 through 2006 from ...
The authors acknowledge for their strong support the European Commission, Airbus and the Airlines (Lufthansa, Austrian, Air France) who carry free of charge the MOZAIC equipment and perform the maintenance ...
doi:10.5194/acpd-8-18091-2008
fatcat:v25jnxci3jharamajg66xlhvku
A Spectral Decomposition Algorithm for Estimating Chlorophyll-a Concentrations in Lake Taihu, China
2014
Remote Sensing
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The new model was constructed by simulated spectral data from Hydrolight and was successfully validated using both of simulated reflectance and in situ reflectance data. ...
According to the MERIS retrieved results, the spatial distribution of chlorophyll-a concentrations and its relationship with environment factors were analyzed. ...
for their participation in the field experiment. ...
doi:10.3390/rs6065090
fatcat:kezsgjgm2vakzljyfq6fneivdm
Retrieval of Terrestrial Plant Fluorescence Based on the In-Filling of Far-Red Fraunhofer Lines Using SCIAMACHY Observations
2015
Frontiers in Environmental Science
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in this research field. ...
However, a direct comparison to data of others was showing similar results for most areas. ...
APPENDIX It is noteworthy that in the framework of this feasibility study we do not use any radiative transfer model to simulate fluorescence spectrum at the top of canopy (TOC) layer. ...
doi:10.3389/fenvs.2015.00078
fatcat:vj54w7y7afetlnzq3rigwayfey
Atmospheric correction for MASTER image data using localized modelled and observed meteorology and trace gases
2012
Remote Sensing Letters
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One correction used local atmospheric profiles of meteorology and trace gases at overpass and the other used the 1976 US Standard default atmospheric profile in the MODTRAN4 radiative transfer model. ...
We assessed the effect of using observations and mesoscale weather and chemical transport models on multispectral retrievals of land and ocean properties. ...
Kudela (University of California, Santa Cruz). ...
doi:10.1080/01431161.2010.551550
fatcat:dvf7y7z4hnfzxkcoffq4zhatga
Estimation of the absorption and backscattering coefficients from inߚwater radiometric measurements
2000
Limnology and Oceanography
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Numerical simulations of radiative transfer within the ocean surface mixed layer have been used to derive a set of simple equations for estimating the absorption, a, and backscattering, b b , coefficients ...
The retrieval of a and b b from E d , E u , and L u has been tested using field data collected in the Southern California Bight. ...
Radiative transfer simulations-Simulations of the underwater light field were carried out with the Hydrolight radiative transfer numerical model based on the invariant imbedding theory (Mobley 1994) . ...
doi:10.4319/lo.2000.45.3.0628
fatcat:hseandbeovbe5h7hdnqravr5gu
A New Fluorescence Quantum Yield Efficiency Retrieval Method to Simulate Chlorophyll Fluorescence under Natural Conditions
2020
Remote Sensing
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ChlF spectra can be simulated with the Fluspect model, which is a radiative transfer model that simulates leaf reflectance, transmittance, and fluorescence; however, it has never been used or validated ...
To improve the accuracy of the simulation, an inversion code containing the emission efficiency parameters for photosystems I and II was added, which retrieves FQE I and II from the measured fluorescence ...
We send our sincere thanks to C. van der Tol and Peiqi Yang of the University of Twente for their cooperation with us on data analysis. ...
doi:10.3390/rs12244053
fatcat:tc435cyhsfd6tpukmvgr5woxzu
Radiative transfer modeling through terrestrial atmosphere and ocean accounting for inelastic processes: Software package SCIATRAN
2017
Journal of Quantitative Spectroscopy and Radiative Transfer
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In addition we present selected comparisons of SCIATRAN simulations with those published benchmark results, independent radiative transfer models, and various measurements from satellite, ground-based, ...
In this paper we discuss and explain the numerical methods used in SCIATRAN to solve the scalar radiative transfer equation including trans-spectral processes, and demonstrate how some selected radiative ...
Comparisons of SCIATRAN results with simulations by other radiative transfer models and measurement data are given in Sections 5 and 6, respectively. Appendix summarizes all implementation details. ...
doi:10.1016/j.jqsrt.2017.03.009
fatcat:u7ll4dd3izhtvk5zelaqgvobtm
Evaluation of the FluorWPS Model and Study of the Parameter Sensitivity for Simulating Solar-Induced Chlorophyll Fluorescence
2021
Remote Sensing
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As a first step, a comprehensive evaluation of the three-dimensional (3D) radiative transfers is needed using ground truth biological and hyperspectral remote sensing measurements. ...
A common solution for interpreting these effects is the use of physically-based radiative transfer models. ...
We thank Weiwei Liu for the instruction of the DART model. ...
doi:10.3390/rs13061091
fatcat:bfzbooab3vd2xk7whlnkheb3sa
New Spectral Fitting Method for Full-Spectrum Solar-Induced Chlorophyll Fluorescence Retrieval Based on Principal Components Analysis
2015
Remote Sensing
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Then, the F-SFM algorithm was tested using both simulated and field-measured data with different Spectral Resolutions (SRs) and Signal-to-Noise Ratios (SNRs). ...
Using F-SFM, both the full-spectrum reflectance and SIF within the 650800 nm region were modeled by PCA based on a training dataset simulated by the Soil Canopy Observation, Photochemistry and Energy ...
Acknowledgments The authors gratefully acknowledge financial support provided for this research by the National Natural Science Foundation of China (41222008). ...
doi:10.3390/rs70810626
fatcat:mczcwpsgkfbylaftd7255g5fie
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