20 Hits in 2.2 sec

Nitrogen dioxide observations from the Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument: retrieval algorithm and measurements during DISCOVER-AQ Texas 2013

C. R. Nowlan, X. Liu, J. W. Leitch, K. Chance, G. González Abad, C. Liu, P. Zoogman, J. Cole, T. Delker, W. Good, F. Murcray, L. Ruppert (+15 others)
2015 Atmospheric Measurement Techniques Discussions  
NO<sub>2</sub> slant columns from GeoTASO also agree well with preliminary retrievals from the GEO-CAPE Airborne Simulator (GCAS) which flew on the NASA King Air B200 (<i>r</i> = 0.84, slope = 0.94).  ...  The Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument is a testbed for upcoming air quality satellite instruments that will measure backscattered ultraviolet, visible  ...  Table 1 summarizes the main characteristics of the instrument. Spectrometer design GeoTASO uses an Offner imaging spectrometer with the optical design shown in Fig. 1 .  ... 
doi:10.5194/amtd-8-13099-2015 fatcat:5wjmxiihxjamngjvp7mgnadiuu

Nitrogen dioxide observations from the Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument: Retrieval algorithm and measurements during DISCOVER-AQ Texas 2013

Caroline R. Nowlan, Xiong Liu, James W. Leitch, Kelly Chance, Gonzalo González Abad, Cheng Liu, Peter Zoogman, Joshua Cole, Thomas Delker, William Good, Frank Murcray, Lyle Ruppert (+15 others)
2016 Atmospheric Measurement Techniques  
NO<sub>2</sub> slant columns from GeoTASO also agree well with preliminary retrievals from the GEO-CAPE Airborne Simulator (GCAS) which flew on the NASA King Air B200 (<i>r</i> = 0.81, slope = 0.91).  ...  </strong> The Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) airborne instrument is a test bed for upcoming air quality satellite instruments that will measure backscattered ultraviolet  ...  MODIS MCD43GF V005 data were provided by the MODIS remote sensing group at the University of Massachusetts, Boston.  ... 
doi:10.5194/amt-9-2647-2016 fatcat:dswtpwbsavfg7jpd5654c5bdyu

The Dawn of Geostationary Air Quality Monitoring: Case Studies From Seoul and Los Angeles

Laura M. Judd, Jassim A. Al-Saadi, Lukas C. Valin, R. Bradley Pierce, Kai Yang, Scott J. Janz, Matthew G. Kowalewski, James J. Szykman, Martin Tiefengraber, Moritz Mueller
2018 Frontiers in Environmental Science  
) airborne instrument.  ...  This paper integrates repeated high-resolution maps from GeoTASO, ground-based Pandora spectrometers, and low Earth orbit measurements from the Ozone Mapping and Profiler Suite (OMPS), for case studies  ...  ACKNOWLEDGMENTS The authors extend appreciation to the South Coast Air Quality Monitoring District (SCAQMD) and our colleagues at UCLA and CalTech for providing accommodations for the Pandora Spectrometers  ... 
doi:10.3389/fenvs.2018.00085 pmid:31534946 pmcid:PMC6749617 fatcat:wvklb5522ff5rosqpkud5cegly

Evaluating Sentinel-5P TROPOMI tropospheric NO2 column densities with airborne and Pandora spectrometers near New York City and Long Island Sound

Laura M. Judd, Jassim A. Al-Saadi, James J. Szykman, Lukas C. Valin, Scott J. Janz, Matthew G. Kowalewski, Henk J. Eskes, J. Pepijn Veefkind, Alexander Cede, Moritz Mueller, Manuel Gebetsberger, Robert Swap (+5 others)
2020 Atmospheric Measurement Techniques  
Airborne and ground-based Pandora spectrometer NO2 column measurements were collected during the 2018 Long Island Sound Tropospheric Ozone Study (LISTOS) in the New York City/Long Island Sound region,  ...  Airborne spectrometers are typically only deployed for short periods of time, but their observations are more spatially representative of the satellite measurements with the added capability of retrieving  ...  Airborne spectrometers Two airborne UV-VIS mapping spectrometers are used in this study: Geostationary Trace gas and Aerosol Sensor Optimization (GeoTASO) and GEO-CAPE Airborne Simulator (GCAS).  ... 
doi:10.5194/amt-13-6113-2020 pmid:34122664 pmcid:PMC8193800 fatcat:uv2uot6loffobbywpbeyv3lpyi

Overview of the Lake Michigan Ozone Study 2017

Charles O. Stanier, R. Bradley Pierce, Maryam Abdi-Oskouei, Zachariah E. Adelman, Jay Al-Saadi, Hariprasad D. Alwe, Timothy H. Bertram, Gregory R. Carmichael, Megan B. Christiansen, Patricia A. Cleary, Alan C. Czarnetzki, Angela F. Dickens (+19 others)
2021 Bulletin of The American Meteorological Society - (BAMS)  
The observing strategy included GeoTASO on board the NASA UC-12 capturing NO2 and formaldehyde columns, an in situ profiling aircraft, two ground-based coastal enhanced monitoring locations, continuous  ...  of lake breezes, contribution of new remote sensing tools such as GeoTASO, Pandora, and TEMPO to air quality management, and evaluation of photochemical grid models.  ...  Quantifying Weekday/Weekend Emission variability 336 Figure 5 3365 spectrometers). The ceilometers were installed at Grafton, Milwaukee, and Zion.  ... 
doi:10.1175/bams-d-20-0061.1 fatcat:qqmkzq4iwrh6roc364ige7o7qa

The Korea–United States Air Quality (KORUS-AQ) field study

James H. Crawford, Joon-Young Ahn, Jassim Al-Saadi, Limseok Chang, Louisa K. Emmons, Jhoon Kim, Gangwoong Lee, Jeong-Hoo Park, Rokjin J. Park, Jung Hun Woo, Chang-Keun Song, Ji-Hyung Hong (+19 others)
2021 Elementa: Science of the Anthropocene  
The effort was jointly sponsored by the National Institute of Environmental Research of South Korea and the National Aeronautics and Space Administration of the United States.  ...  apportionment, and expectations for the role of satellite observations in the future.  ...  the success of the project.  ... 
doi:10.1525/elementa.2020.00163 pmid:34926709 pmcid:PMC8675105 fatcat:ygcvxykpj5eqzmrxoesd3ypzli

Front Matter: Volume 9218

2014 Earth Observing Systems XIX  
Numbers in the index correspond to the last two digits of the six-digit CID Number.  ...  The CID Number appears on each page of the manuscript. The complete citation is used on the first page, and an abbreviated version on subsequent pages.  ...  CarbonSat candidate mission: imaging greenhouse gas concentrations from space [9218-50] 9218 1G Design validation for ICESat-2 space-based laser transmitter [9218-51] The GeoTASO airborne spectrometer  ... 
doi:10.1117/12.2086902 dblp:conf/eos/X14 fatcat:mqosqvangvg5pgbkpcrf2nmzau

First Top-Down Estimates of Anthropogenic NO x Emissions Using High-Resolution Airborne Remote Sensing Observations

Amir H. Souri, Yunsoo Choi, Shuai Pan, Gabriele Curci, Caroline R. Nowlan, Scott J. Janz, Matthew G. Kowalewski, Junjie Liu, Jay R. Herman, Andrew J. Weinheimer
2018 Journal of Geophysical Research - Atmospheres  
This study illustrates the feasibility of nitrogen dioxide (NO2) columns from the Geostationary Coastal and Air Pollution Events Airborne Simulator (GCAS) to constrain anthropogenic NOx emissions in the  ...  These key limitations can be partially resolved by a set of modest high-quality measurements from airborne remote sensing.  ...  N. applied the spectral fit algorithm to retrieve the slant columns. S. J. Z. and M. K. collected the GCAS observations. J. H. provided the PSI observations. A. J. W. provided the P-3B observations.  ... 
doi:10.1002/2017jd028009 fatcat:geenqjmo5jbjrkta5nvd37fhgy

Assessment of the TROPOMI tropospheric NO2 product based on airborne APEX observations

Frederik Tack, Alexis Merlaud, Marian-Daniel Iordache, Gaia Pinardi, Ermioni Dimitropoulou, Henk Eskes, Bart Bomans, Pepijn Veefkind, Michel Van Roozendael
2021 Atmospheric Measurement Techniques  
Sentinel-5 Precursor (S-5P), launched in October 2017, carrying the TROPOspheric Monitoring Instrument (TROPOMI) nadir-viewing spectrometer, is the first mission of the Copernicus Programme dedicated to  ...  In the framework of the S-5P validation campaign over Belgium (S5PVAL-BE), the APEX imaging spectrometer has been deployed during four mapping flights (26–29 June 2019) over the two largest urban regions  ...  The Belgian Federal Science Policy Office is gratefully appreciated for funding the APEX aircraft activities in the framework of the STEREO programme.  ... 
doi:10.5194/amt-14-615-2021 fatcat:pg27aqsmw5ca7i6lwlqdrkcb4e

Sentinel-5 Precursor Scientific Validation Implementation Plan

Thorsten Fehr
2016 Zenodo  
Validation Team (S5PVT) The Science Validation Implementation plan is based on the projects proposed in response to the ESA Announcement of Opportunity Call for the S5PVT.  ...  This document shall provide to all stakeholders of the Sentinel-5 Precursor mission a reference for the independent validation activities proposed and planned by the science community.  ...  - 4 SO2 total column Airborne imaging spectrometer GeoTASO, ground/ship based Pandora, Airborne in-situ NASA DC-8 South Korea and surrounding waters May-June 2016  ... 
doi:10.5281/zenodo.165739 fatcat:w7tdycak3jhxbishbq6szba4ja

The Ozone Water-Land Environmental Transition Study (OWLETS): An Innovative Strategy for Understanding Chesapeake Bay Pollution Events

John T. Sullivan, Timothy Berkoff, Guillaume Gronoff, Travis Knepp, Margaret Pippin, Danette Allen, Laurence Twigg, Robert Swap, Maria Tzortziou, Anne M. Thompson, Ryan M. Stauffer, Glenn M. Wolfe (+7 others)
2018 Bulletin of The American Meteorological Society - (BAMS)  
of air quality from ground-based, airborne (both personned and unpersonned), and shipborne platforms.  ...  Prior studies have identified the formation of high levels of ozone over water bodies, such as the Chesapeake Bay, that can potentially recirculate back over land to significantly impact populated areas  ...  NASA GSFC Pandora Project, the NASA AERONet Project, and the pilots/captains and crew of the LaRC B200, WFF C-23 Sherpa, and R/V SERC.  ... 
doi:10.1175/bams-d-18-0025.1 pmid:33005058 pmcid:PMC7526589 fatcat:tpzhp2t2vnapdexkiwkg3x7qka

A method for quantifying near range point source Induced O3 titration events using Co-located Lidar and Pandora measurements

Gronoff Guillaume, Robinson Joseph, Berkoff Timothy, Swap Robert, Farris Betsy, Schroeder Jeremy, S. Halliday Hannah, Knepp Travis, Spinei Elena, Carrion William, E. Adcock Edward, Johns Zachary (+2 others)
2019 Atmospheric Environment  
It was sited in close proximity to a shipping channel with an ensemble of additional instrumentation including Pandora spectrometer systems, ozonesonde launches, and in-situ trace gas monitorsone flying  ...  A ground-based tropospheric O 3 lidar with unique vertical near-range capabilities was deployed in support of the larger OWLETS 2017 campaign on the Chesapeake Bay Bridge Tunnel, at the mouth of the Chesapeake  ...  Acknowledgements The authors want to thank Dr. John Sullivan J. (NASA GSFC, Md, USA), Dr.  ... 
doi:10.1016/j.atmosenv.2019.01.052 fatcat:kfxjayxdsjhltiqxt55iokmxcy

New Era of Air Quality Monitoring from Space: Geostationary Environment Monitoring Spectrometer (GEMS)

Jhoon Kim, Ukkyo Jeong, Myoung-Hwan Ahn, Jae H. Kim, Rokjin J. Park, Hanlim Lee, Chul Han Song, Yong-Sang Choi, Kwon-Ho Lee, Jung-Moon Yoo, Myeong-Jae Jeong, Seon Ki Park (+69 others)
2019 Bulletin of The American Meteorological Society - (BAMS)  
With the development of UV-visible spectrometers at sub-nm spectral resolution and sophisticated retrieval algorithms, estimates of the column amounts of atmospheric pollutants (O 3 , NO 2 , SO 2 , HCHO  ...  The Geostationary Environment Monitoring Spectrometer (GEMS) is scheduled for launch in February 2020 to monitor air quality (AQ) at an unprecedented spatial and temporal resolution from a geostationary  ...  These algorithms have been tested with L1b data from OMI (Levelt et al. 2018) , TROPOMI (Veefkind et al. 2012) , airborne GeoTASO during the KORUS-AQ campaign in 2016 (Judd et al. 2018) , and simulated  ... 
doi:10.1175/bams-d-18-0013.1 fatcat:3ghscfvo6jgytedzdus2qxkexq

Satellite validation strategy assessments based on the AROMAT campaigns

Alexis Merlaud, Livio Belegante, Daniel-Eduard Constantin, Mirjam Den Hoed, Andreas Carlos Meier, Marc Allaart, Magdalena Ardelean, Maxim Arseni, Tim Bösch, Hugues Brenot, Andreea Calcan, Emmanuel Dekemper (+20 others)
2020 Atmospheric Measurement Techniques  
The signal-to-noise ratio of the airborne NO2 measurements is an order of magnitude higher than its space-borne counterpart when the airborne measurements are averaged at the TROPOMI pixel scale.  ...  The Airborne ROmanian Measurements of Aerosols and Trace gases (AROMAT) campaigns took place in Romania in September 2014 and August 2015.  ...  Performance -Projects of Excellence Financing in RDI (grant no. 19PFE/17.10.2018) , and by Romanian National Core Program (grant no. 18N/2019).  ... 
doi:10.5194/amt-13-5513-2020 fatcat:zrazafklpjeptgvqsoeyosi6lq

Retrieval of tropospheric NO2 columns over Berlin from high-resolution airborne observations with the spectrolite breadboard instrument

Tim Vlemmix, Xinrui (Jerry) Ge, Bryan T. G. de Goeij, Len F. van der Wal, Gerard C. J. Otter, Piet Stammes, Ping Wang, Alexis Merlaud, Dirk Schüttemeyer, Andreas C. Meier, J. Pepijn Veefkind, Pieternel F. Levelt
2017 Atmospheric Measurement Techniques Discussions  
This paper presents the retrieval method that was developed to derive tropospheric NO<sub>2</sub> columns from UV/VIS spectral measurements obtained with the Spectrolite Breadboard Instrument during the  ...  An error budget is provided to quantify the impact of various assumptions on the accuracy of the retrieval of surface reflectance and tropospheric NO<sub>2</sub> columns.  ...  Summary and Conclusions The AROMAPEX campaign organized by ESA provided an ideal opportunity to test spectrometers for airborne remote sensing of tropospheric NO 2 that will be deployed in the future amongst  ... 
doi:10.5194/amt-2017-257 fatcat:kp6v4c6bxbbbffkzcpsmvnrg2e
« Previous Showing results 1 — 15 out of 20 results