Article
Geochemistry & Geophysics
Kevin A. Twedt, Sarah Henderson, Xiaoxiong Xiong, Amit Angal, Xu Geng
Summary: This paper discusses the impact of nonlinearity in Aqua MODIS band detectors on NASA's MODIS reflectance and radiance products, and presents a simple quadratic calibration algorithm to improve data consistency.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Ioannis-Panagiotis Raptis, Kostas Eleftheratos, Stelios Kazadzis, Panagiotis Kosmopoulos, Kyriakoula Papachristopoulou, Stavros Solomos
Summary: This study focuses on measurements and modeled UV index in Athens, Greece during a low ozone event. It found that UV irradiance increased due to low total ozone column, but this effect was masked by Saharan dust aerosols.
Article
Optics
Huihui Shan, Hui Zhang, Xiaomin Ma, Kaifa Cao, Chengli Ji, Zongming Tao, Jiajia Han, Shenhao Wang, Shaoqing Zhao, Junli Qi, Zhenzhu Wang, Dong Liu
Summary: This study proposes a method to retrieve ozone concentration using CCD imaging lidar and analyzes the effects of different factors on the retrieval. The results show that the method has reasonable accuracy for different types of aerosol and ozone concentrations.
Article
Meteorology & Atmospheric Sciences
Changwoo Ahn, Omar Torres, Hiren Jethva, Ramaswamy Tiruchirapalli, Liang-Kang Huang
Summary: Frequent observations of aerosols from space using EPIC have successfully derived key aerosol properties, with high correlation coefficients and good agreement with AERONET measurements. The comparison of ACAOD also showed reasonably high matching accuracy, with 50%-70% of matchups falling within expected uncertainty.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Luca Egli, Julian Grobner, Gregor Hulsen, Herbert Schill, Rene Stubi
Summary: This study presents traceable Total Column Ozone (TCO) retrievals using a portable UV reference instrument, QASUME. The retrieval method is independent from any reference instrument and calibration, and the results show high reliability and accuracy for TCO monitoring.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2022)
Article
Environmental Sciences
A. S. Khaniani
Summary: Satellite-based sea surface temperature data is essential for climate research, and in this study, the accuracy of Terra satellite products was evaluated by comparing them with local buoy measurements. Results showed that the negative bias values of satellite products were higher at night than during the day, with the highest error values observed in the summer season.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
D. Jean du Preez, Hassan Bencherif, Thierry Portafaix, Kevin Lamy, Caradee Yael Wright
Summary: Biomass burning in South Africa affects aerosol and tropospheric ozone levels in Pretoria, with aerosols having a larger radiative effect on solar UVR levels compared to tropospheric ozone during the burning season. Understanding the radiative effects of aerosols and trace gases in biomass burning-affected regions is important for future research.
Article
Meteorology & Atmospheric Sciences
Rebecca A. Wernis, Nathan M. Kreisberg, Robert J. Weber, Yutong Liang, John Jayne, Susanne Hering, Allen H. Goldstein
Summary: Aerosols are a major uncertainty in radiative forcing predictions and have complex health impacts. The cTAG instrument is able to quantify a wide range of specific compounds, providing insights into the evolution of these species.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2021)
Article
Meteorology & Atmospheric Sciences
S. Marcela Loria-Salazar, Andrew M. Sayer, John Barnes, Jingting Huang, Connor Flynn, Neil Lareau, Jaehwa Lee, Alexei Lyapustin, Jens Redemann, Ellsworth J. Welton, Joseph L. Wilkins, Heather A. Holmes
Summary: This study analyzed NASA satellite retrievals of aerosol products over the western USA in August 2013, emphasizing locally generated wildfire smoke and downwind plume structures. The evaluation showed significant improvements in correlation and statistical metrics of aerosol optical depth compared to previous methods, indicating the potential usefulness of these new NASA aerosol products in characterizing aerosol loading associated with wildfire smoke. Novel NASA MODIS and VIIRS aerosol products are valuable tools for studying surface level aerosol concentrations specific to wildfire emissions and smoke plumes.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Astronomy & Astrophysics
Lixiang Gu, Zhao-Cheng Zeng, Siteng Fan, Vijay Natraj, Jonathan H. Jiang, David Crisp, Yuk L. Yung, Yongyun Hu
Summary: Analyzing time-resolved disk-integrated spectral images of the Earth can provide important baseline information for characterizing exoplanets in the future. This study utilized data from the Earth Polychromatic Imaging Camera (EPIC) onboard the Deep Space Climate Observatory (DSCOVR) and used a mathematical model to simulate and reconstruct the spectral observations. The study also examined the correlation between the principal components of the spectrophotometric light curves and atmospheric and surface features.
ASTRONOMICAL JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Chengzhi Xing, Cheng Liu, Hongyu Wu, Jinan Lin, Fan Wang, Shuntian Wang, Meng Gao
Summary: This study presents a dataset of high-time-resolution vertical profile observations of atmospheric composition on the Tibetan Plateau for over a year (2017-2019). It details the diurnal pattern, vertical distribution, and seasonal variations of aerosols, NO2, HCHO, and HONO, aiming to benefit the scientific community in understanding the impact of atmospheric composition on climate change in the region.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Meteorology & Atmospheric Sciences
Daniel Zawada, Ghislain Franssens, Robert Loughman, Antti Mikkonen, Alexei Rozanov, Claudia Emde, Adam Bourassa, Seth Dueck, Hannakaisa Lindqvist, Didier Ramon, Vladimir Rozanov, Emmanuel Dekemper, Erkki Kyrola, John P. Burrows, Didier Fussen, Doug Degenstein
Summary: A comprehensive comparison of seven radiative transfer models in the limb scattering geometry showed generally good agreement among the models, with differences mostly less than 1% for most conditions including multiple scattering and refraction.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2021)
Article
Remote Sensing
Natalya A. Kramarova, Jerald R. Ziemke, Liang-Kang Huang, Jay R. Herman, Krzysztof Wargan, Colin J. Seftor, Gordon J. Labow, Luke D. Oman
Summary: This study presents the retrieval of Earth Polychromatic Imaging Camera (EPIC) ozone data, which shows good accuracy in certain conditions. Additionally, a significant drop in total tropospheric ozone over the entire Northern Hemisphere during the spring and summer of 2020 is observed, partially attributed to unprecedented Arctic stratospheric ozone losses and reductions in ozone precursor pollutants due to the COVID-19 pandemic.
FRONTIERS IN REMOTE SENSING
(2021)
Article
Environmental Sciences
Ganesh Kutal, Amol Kolhe, Sandeep Varpe, Chandrashekhar Mahajan, Prayagraj Singh, Gajanan Aher
Summary: The measurements of Ultraviolet erythemal radiation (UVER) at the Nowrosjee Wadia College (NWC) campus in Pune, India, were analyzed to study the temporal variability of UVER, quantify the effects of total column ozone (TCO) and aerosols on surface reaching UVER, and compare the ground-based and satellite retrieved UVER data. The analysis reveals a significant diurnal change in UVER, with a monthly cyclical trend. There is an inverse relationship between UVER and aerosol/TCO data pairs, indicating their influence on surface reaching UVER. The study also finds that the Ozone Monitoring Instrument (OMI) overestimates UVER due to the absence of absorbing aerosols in its retrieval algorithm.
AEROSOL SCIENCE AND ENGINEERING
(2022)
Proceedings Paper
Optics
Clarissa M. DeLeon, James Heath, W. Reed Espinosa, Dong Wu, Meredith Kupinski
Summary: Cirrus clouds play a crucial role in the radiation energy budget due to their temporal duration and global coverage, but their optical thickness makes them hard to detect with current satellite radiometers. Studies have shown that in the UV, the angle of linear polarization of solar radiation backscattered from thin cirrus clouds and thin liquid water clouds is rotated.
POLARIZATION SCIENCE AND REMOTE SENSING X
(2021)
Article
Meteorology & Atmospheric Sciences
Gordon J. Labow, Jerald R. Ziemke, Richard D. McPeters, David P. Haffner, Pawan K. Bhartia
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2015)
Article
Geochemistry & Geophysics
Hiren Jethva, Omar Torres, Lorraine A. Remer, Pawan K. Bhartia
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2013)
Article
Meteorology & Atmospheric Sciences
S. M. Frith, N. A. Kramarova, R. S. Stolarski, R. D. McPeters, P. K. Bhartia, G. J. Labow
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2014)
Article
Meteorology & Atmospheric Sciences
Glen Jaross, Pawan K. Bhartia, Grace Chen, Mark Kowitt, Michael Haken, Zhong Chen, Philippe Xu, Jeremy Warner, Thomas Kelly
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2014)
Article
Meteorology & Atmospheric Sciences
J. R. Ziemke, M. A. Olsen, J. C. Witte, A. R. Douglass, S. E. Strahan, K. Wargan, X. Liu, M. R. Schoeberl, K. Yang, T. B. Kaplan, S. Pawson, B. N. Duncan, P. A. Newman, P. K. Bhartia, M. K. Heney
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2014)
Article
Environmental Sciences
R. Loughman, D. Flittner, E. Nyaku, P. K. Bhartia
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2015)
Article
Environmental Sciences
A. Parrish, I. S. Boyd, G. E. Nedoluha, P. K. Bhartia, S. M. Frith, N. A. Kramarova, B. J. Connor, G. E. Bodeker, L. Froidevaux, M. Shiotani, T. Sakazaki
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2014)
Article
Meteorology & Atmospheric Sciences
E. W. Chiou, P. K. Bhartia, R. D. McPeters, D. G. Loyola, M. Coldewey-Egbers, V. E. Fioletov, M. Van Roozendael, R. Spurr, C. Lerot, S. M. Frith
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2014)
Article
Environmental Sciences
N. A. Kramarova, E. R. Nash, P. A. Newman, P. K. Bhartia, R. D. McPeters, D. F. Rault, C. J. Seftor, P. Q. Xu, G. J. Labow
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2014)
Article
Meteorology & Atmospheric Sciences
N. A. Kramarova, P. K. Bhartia, S. M. Frith, R. D. McPeters, R. S. Stolarski
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2013)
Article
Environmental Sciences
N. A. Kramarova, S. M. Frith, P. K. Bhartia, R. D. McPeters, S. L. Taylor, B. L. Fisher, G. J. Labow, M. T. DeLand
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2013)
Article
Meteorology & Atmospheric Sciences
E. J. Bucsela, N. A. Krotkov, E. A. Celarier, L. N. Lamsal, W. H. Swartz, P. K. Bhartia, K. F. Boersma, J. P. Veefkind, J. F. Gleason, K. E. Pickering
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2013)
Article
Meteorology & Atmospheric Sciences
P. K. Bhartia, R. D. McPeters, L. E. Flynn, S. Taylor, N. A. Kramarova, S. Frith, B. Fisher, M. DeLand
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2013)
Article
Environmental Sciences
N. R. P. Harris, B. Hassler, F. Tummon, G. E. Bodeker, D. Hubert, I. Petropavlovskikh, W. Steinbrecht, J. Anderson, P. K. Bhartia, C. D. Boone, A. Bourassa, S. M. Davis, D. Degenstein, A. Delcloo, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, N. Jones, M. J. Kurylo, E. Kyrola, M. Laine, S. T. Leblanc, J. -C. Lambert, B. Liley, E. Mahieu, A. Maycock, M. de Maziere, A. Parrish, R. Querel, K. H. Rosenlof, C. Roth, C. Sioris, J. Staehelin, R. S. Stolarski, R. Stuebi, J. Tamminen, C. Vigouroux, K. A. Walker, H. J. Wang, J. Wild, J. M. Zawodny
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2015)
Article
Meteorology & Atmospheric Sciences
B. Hassler, I. Petropavlovskikh, J. Staehelin, T. August, P. K. Bhartia, C. Clerbaux, D. Degenstein, M. De Maziere, B. M. Dinelli, A. Dudhia, G. Dufour, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, J. Granville, N. R. P. Harris, K. Hoppel, D. Hubert, Y. Kasai, M. J. Kurylo, E. Kyroelae, J. -C. Lambert, P. F. Levelt, C. T. McElroy, R. D. McPeters, R. Munro, H. Nakajima, A. Parrish, P. Raspollini, E. E. Remsberg, K. H. Rosenlof, A. Rozanov, T. Sano, Y. Sasano, M. Shiotani, H. G. J. Smit, G. Stiller, J. Tamminen, D. W. Tarasick, J. Urban, R. J. van der A, J. P. Veefkind, C. Vigouroux, T. von Clarmann, C. von Savigny, K. A. Walker, M. Weber, J. Wild, J. M. Zawodny
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2014)