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Detecting Layer Height of Smoke and Dust Aerosols Over Vegetated Land and Water Surfaces via Oxygen Absorption Bands [article]

Jing Zeng, Xiaoguang Xu, Jun Wang, Yi Wang, Xi Chen, Zhendong Lu, Omar Torres, Jeffrey S. Reid, Steven D. Miller, Maryland Shared Open Access Repository
2021
We present an algorithm for retrieving aerosol layer height (ALH) and aerosol optical depth (AOD) for smoke and dust over vegetated land and water surfaces from measurements of the Earth Polychromatic  ...  Our algorithm uses EPIC atmospheric window bands to determine AOD and then takes advantage of oxygen A and B bands to derive ALH. We applied this algorithm on several dust and smoke events.  ...  Abstract We present an algorithm for retrieving aerosol layer height (ALH) and aerosol optical depth (AOD) for smoke and dust over vegetated land and water surfaces from measurements of the Earth Polychromatic  ... 
doi:10.13016/m2mgf1-a0xy fatcat:tvcgmdh7brhcdd5y5cw4qbdomq

Detecting layer height of smoke aerosols over vegetated land and water surfaces via oxygen absorption bands: hourly results from EPIC/DSCOVR in deep space

Xiaoguang Xu, Jun Wang, Yi Wang, Jing Zeng, Omar Torres, Jeffrey S. Reid, Steven D. Miller, J. Vanderlei Martins, Lorraine A. Remer
2019 Atmospheric Measurement Techniques  
</strong> We present an algorithm for retrieving aerosol layer height (ALH) and aerosol optical depth (AOD) for smoke over vegetated land and water surfaces from measurements of the Earth Polychromatic  ...  We found that the algorithm can be used to obtain AOD and ALH multiple times daily over water and vegetated land surface.  ...  .: Detecting the layer height of smoke aerosols  ... 
doi:10.5194/amt-12-3269-2019 fatcat:s63oosn7orejpb6id3ckuye3pa

Detecting layer height of smoke aerosols over vegetated land and water surfaces via oxygen absorption bands: Hourly results from EPIC/DSCOVR satellite in deep space

Xiaoguang Xu, Jun Wang, Yi Wang, Jing Zeng, Omar Torres, Jeffrey S. Reid, Steven D. Miller, J. Vanderlei Martins, Lorraine A. Remer
2018 Atmospheric Measurement Techniques Discussions  
</strong> We present an algorithm for retrieving aerosol layer height (ALH) and aerosol optical depth (AOD) for smoke over vegetated land and water surfaces from measurements of the Earth Polychromatic  ...  We found the algorithm can well capture AOD and ALH multiple times daily over water and vegetated land surface.  ...  the water and vegetated land surfaces.  ... 
doi:10.5194/amt-2018-414 fatcat:pu5cjorflvgyxmbkx4anekh63a

Retrievals of Aerosol Optical Depth and Spectral Absorption From DSCOVR EPIC

Alexei Lyapustin, Sujung Go, Sergey Korkin, Yujie Wang, Omar Torres, Hiren Jethva, Alexander Marshak
2021 Frontiers in Remote Sensing  
The retrievals are illustrated on examples of the wildfire smoke events over North America, and dust storms over greater Sahara region in 2018.  ...  A new algorithm is described for joint retrievals of the aerosol optical depth and spectral absorption from EPIC observations in the UV—Vis spectral range.  ...  The first one is a simultaneous evaluation of the aerosol layer height from EPIC's A and B oxygen absorption bands.  ... 
doi:10.3389/frsen.2021.645794 fatcat:moqemfk6xzgtho5go73mfwkg5q

Hourly Mapping of the Layer Height of Thick Smoke Plumes Over the Western U.S. in 2020 Severe Fire Season

Zhendong Lu, Jun Wang, Jun Wang, Xiaoguang Xu, Xi Chen, Shobha Kondragunta, Omar Torres, Eric M. Wilcox, Jing Zeng
2021 Frontiers in Remote Sensing  
Lagrange-1 point and its equipment of O2 B-band at which the vegetated surface reflectance is low.  ...  Here, a research algorithm was modified to retrieve the aerosol optical centroid height (AOCH) and aerosol optical depth (AOD) from Earth Polychromatic Imaging Camera (EPIC) measurements.  ...  Hourly Change of AOCH and Its Potential Application to Surface PM 2.5 Estimate The diurnal variation of smoke layer height over land from local morning to local noon time (17:06-20:42 UTC) on September  ... 
doi:10.3389/frsen.2021.766628 doaj:55a2769d6b544aa597e25191ec9f6c95 fatcat:flyq22mc7baefpbqwbnqj7ngni

Retrieving Aerosol Characteristics From the PACE Mission, Part 1: Ocean Color Instrument

Lorraine A. Remer, Anthony B. Davis, Shana Mattoo, Robert C. Levy, Olga V. Kalashnikova, Odele Coddington, Jacek Chowdhary, Kirk Knobelspiesse, Xiaoguang Xu, Ziauddin Ahmad, Emmanuel Boss, Brian Cairns (+11 others)
2019 Frontiers in Earth Science  
Most recently, Xu et al. (2018b) extended the retrieval algorithm for smoke ALH over vegetated land surfaces (Figure 6B) .  ...  Assuming that CALIOP-derived aerosol extinction profiles represent an accurate representation of ALH the retrieval accuracy from EPIC's oxygen bands was 0.45 km over ocean and 0.58 km over vegetated land  ...  Conflict of Interest Statement: AI was employed by Science Application International Inc.  ... 
doi:10.3389/feart.2019.00152 fatcat:kxteuz6dwrb5teeahg2f754ffu

A computational tool for evaluating THz imaging performance in brownout or whiteout conditions at land sites throughout the world

Steven T. Fiorino, Richard J. Bartell, Matthew J. Krizo, Seth L. Marek, Matthew J. Bohn, Robb M. Randall, Salvatore J. Cusumano, Linda M. Wasiczko Thomas, G. Charmaine Gilbreath
2009 Atmospheric Propagation VI  
In addition to realistic vertical profiles of molecular and aerosol absorption and scattering, correlated optical turbulence profiles in probabilistic (percentile) format are used.  ...  This model enables the creation of vertical profiles of temperature, pressure, water vapor content, optical turbulence, and atmospheric particulates and hydrometeors as they relate to line-by-line layer  ...  The most favorable surfaces for dust production are areas of scarce vegetation, precipitation limited, ample dust and sand sources as well as unstable mixed air providing essential vertical transport.  ... 
doi:10.1117/12.818922 fatcat:gkx6bbnos5dmtoeju242xi4neu

Earth Observations from DSCOVR/EPIC Instrument

Alexander Marshak, Jay Herman, Adam Szabo, Karin Blank, Simon Carn, Alexander Cede, Igor Geogdzhayev, Dong Huang, Liang-Kang Huang, Yuri Knyazikhin, Matthew Kowalewski, Nickolay Krotkov (+5 others)
2018 Bulletin of The American Meteorological Society - (BAMS)  
Finally, we describe the observation of horizontally oriented ice crystals in clouds and the unexpected use of the O2 B-band absorption for vegetation properties.  ...  The principal EPIC products are total ozone O3amount, scene reflectivity, erythemal irradiance, UV aerosol properties, sulfur dioxide SO2 for volcanic eruptions, surface spectral reflectance, vegetation  ...  Additionally, radiance measurements in the oxygen A and B bands are used to simultaneously derive the optical depth and the height of elevated desert dust and smoke aerosol layers over the oceans (Xu  ... 
doi:10.1175/bams-d-17-0223.1 pmid:30393385 pmcid:PMC6208167 fatcat:jzdzf5phxjfyrl2e6rr6xcjwum

Atmospheric Correction of Satellite Ocean-Color Imagery During the PACE Era

Robert J. Frouin, Bryan A. Franz, Amir Ibrahim, Kirk Knobelspiesse, Ziauddin Ahmad, Brian Cairns, Jacek Chowdhary, Heidi M. Dierssen, Jing Tan, Oleg Dubovik, Xin Huang, Anthony B. Davis (+14 others)
2019 Frontiers in Earth Science  
Extending the top-of-atmosphere (TOA) observations to the UV, where aerosol absorption is effective, adding spectral bands in the SWIR, where even the most turbid waters are black and sensitivity to the  ...  aerosol coarse mode is higher than at shorter wavelengths, and measuring in the oxygen A-band to estimate aerosol altitude will enable greater accuracy in atmospheric correction for ocean color science  ...  An analysis of the effect of spectral resolution on the ability to use oxygen A-bands to retrieve aerosol layer height is given in Remer et al. (2019, this issue) .  ... 
doi:10.3389/feart.2019.00145 pmid:32440515 pmcid:PMC7241613 fatcat:g7wk6raeirdyxcggl5habritgq

Cloud detection over snow and ice with oxygen A- and B-band observations from the Earth Polychromatic Imaging Camera (EPIC)

Yaping Zhou, Yuekui Yang, Meng Gao, Peng-Wang Zhai
2020 Atmospheric Measurement Techniques  
This study investigates the methodology of applying EPIC's two oxygen absorption band pair ratios in the A band (764, 780 nm) and B band (688, 680 nm) for cloud detection over the snow and ice surfaces  ...  Satellite cloud detection over snow and ice has been difficult for passive remote sensing instruments due to the lack of contrast between clouds and cold/bright surfaces; cloud mask algorithms often heavily  ...  We thank Piet Stammes and two anonymous reviewers for their thorough and very helpful comments.  ... 
doi:10.5194/amt-13-1575-2020 fatcat:ahrnxqny7bc53as2mrst2x5fsq

Simulation of the transport, vertical distribution, optical properties and radiative impact of smoke aerosols with the ALADIN regional climate model during the ORACLES-2016 and LASIC experiments

Marc Mallet, Pierre Nabat, Paquita Zuidema, Jens Redemann, Andrew Mark Sayer, Martin Stengel, Sebastian Schmidt, Sabrina Cochrane, Sharon Burton, Richard Ferrare, Kerry Meyer, Pablo Saide (+7 others)
2019 Atmospheric Chemistry and Physics  
In this study, we take advantage of the large number of observations acquired during the ObseRvations of Aerosols above Clouds and their intEractionS (ORACLES-2016) and Layered Atlantic Smoke Interactions  ...  </strong> Estimates of the direct radiative effect (DRE) from absorbing smoke aerosols over the southeast Atlantic Ocean (SAO) require simulation of the microphysical and optical properties of stratocumulus  ...  This work has been conducted in the frame of the ORACLES investigation under the National Aeronautics and Space Administration's Earth Venture program. Review statement.  ... 
doi:10.5194/acp-19-4963-2019 fatcat:3p46p56vyvakpdk2tdhhnraxga

Satellites see the World's Atmosphere

S. A. Ackerman, S. Platnick, P. K. Bhartia, B. Duncan, T. L'Ecuyer, A. Heidinger, G. Skofronick-Jackson, N. Loeb, T. Schmit, N. Smith
2018 Meteorological Monographs  
This paper discusses some of the key advances in our understanding of the energy and water cycles, weather forecasting, and atmospheric composition enabled by satellite observations.  ...  Satellite meteorology is a relatively new branch of the atmospheric sciences. The field emerged in the late 1950s during the Cold War and built on the advances in rocketry after World War II.  ...  The views, opinions, and findings contained in this report are those of the authors and should not be construed as an official National Oceanic and Atmospheric Administration or U.S. government position  ... 
doi:10.1175/amsmonographs-d-18-0009.1 fatcat:hillp6ewefh5rpcvcv22nnhcca

The Dark Target Algorithm for Observing the Global Aerosol System: Past, Present, and Future

Lorraine A. Remer, Robert C. Levy, Shana Mattoo, Didier Tanré, Pawan Gupta, Yingxi Shi, Virginia Sawyer, Leigh A. Munchak, Yaping Zhou, Mijin Kim, Charles Ichoku, Falguni Patadia (+4 others)
2020 Remote Sensing  
to constrain surface reflectance and aerosol optical properties.  ...  Then, as the Terra and Aqua MODIS sensors aged, the challenge was to monitor the effects of calibration drifts on the aerosol products and to differentiate physical trends in the aerosol system from artefacts  ...  This might be AOD plus six constraints on the particle size distribution, shape, absorption, and aerosol layer height.  ... 
doi:10.3390/rs12182900 fatcat:ucnhdfskirbw7pk2zq2v73z6em

The Amazon Tall Tower Observatory (ATTO): overview of pilot measurements on ecosystem ecology, meteorology, trace gases, and aerosols

M. O. Andreae, O. C. Acevedo, A. Araùjo, P. Artaxo, C. G. G. Barbosa, H. M. J. Barbosa, J. Brito, S. Carbone, X. Chi, B. B. L. Cintra, N. F. da Silva, N. L. Dias (+49 others)
2015 Atmospheric Chemistry and Physics  
They include aerosol light scattering and absorption, fluorescence, number and volume size distributions, chemical composition, cloud condensation nuclei (CCN) concentrations, and hygroscopicity.  ...  The trace gas measurements comprise continuous monitoring of carbon dioxide, carbon monoxide, methane, and ozone at five to eight different heights, complemented by a variety of additional species measured  ...  Episodic inputs of Saharan dust, biomass smoke from Africa, and marine aerosols transported over long distances with the trade winds further complicate the picture (Formenti et al., 2001; Ansmann et al  ... 
doi:10.5194/acp-15-10723-2015 fatcat:4k5cc3bt2rhmhpanno2jrecbka

Harnessing remote sensing to address critical science questions on ocean-atmosphere interactions

Griet Neukermans, Tristan Harmel, Martí Galí, Natalia Rudorff, Jacek Chowdhary, Oleg Dubovik, Chris Hostetler, Yongxiang Hu, Cédric Jamet, Kirk Knobelspiesse, Yoav Lehahn, Pavel Litvinov (+7 others)
2018 Elementa: Science of the Anthropocene  
plan: (1) to what extent does upper-ocean biology affect the composition and radiative properties of the marine boundary layer; and (2) to what extent does upper-ocean turbulence drive fluxes of mass and  ...  We present here a perspective review on how current and emerging remote sensing technologies could help address two scientific questions within the Surface Ocean-Lower Atmosphere Study (SOLAS) science  ...  thick layer of smoke from forest fires in Canada, as indicated in the aerosol backscatter and extinction coefficients (a and b) and aerosol type mask (c).  ... 
doi:10.1525/elementa.331 fatcat:qdgrkh6gyffb3jymqpd4hulyaq
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