Satellite Coastal and Oceanic Atmospheric Pollution Experiment

The Outer Continental Shelf Lands Act (OCSLA) requires the US Department of Interior Bureau of Ocean Energy Management (BOEM) to ensure compliance with the US National Ambient Air Quality Standard (NAAQS) so that Outer Continental Shelf (OCS) oil and natural gas (ONG) exploration, development, and production do not significantly impact the air quality of any US state. In 2017, BOEM and NASA entered into an interagency agreement to begin a study to scope out the feasibility of BOEM personnel using a suite of NASA and non-NASA resources to assess how pollutants from ONG exploration, development, and production activities affect air quality. An important activity of this interagency agreement was the Satellite Coastal and Oceanic Atmospheric Pollution Experiment (SCOAPE), a field deployment that took place in May 2019, that aimed to assess the capability of satellite observations for monitoring offshore air quality. The outcomes of the study are documented in two BOEM reports (Duncan, 2020; Thompson, 2020).

To address BOEM’s goals, the SCOAPE science team conducted surface-based remote sensing and in-situ measurements, which enabled a systematic assessment of the application of satellite observations, primarily NO2, for monitoring air quality. The SCOAPE field measurements consisted of onshore ground sites, including in the vicinity of the Louisiana Universities Marine Consortium (LUMCON; Cocodrie, LA), as well as those from University of Southern Mississippi’s Research Vessel (R/V) Point Sur, which cruised in the Gulf of Mexico from 10-18 May 2019. Based on the 2014 and 2017 BOEM emissions inventories as well as daily air quality and meteorological forecasts, the cruise track was designed to sample both areas with large oil drilling platforms and areas with dense small natural gas facilities. The R/V Point Sur was instrumented to carry out both remote sensing and in-situ measurements of NO2 and O3 along with in-situ CH4, CO2, CO, and VOC tracers which allowed detailed characterization of airmass type and emissions. In addition, there were also measurements of multi-wavelength AOD and black carbon as well as planetary boundary layer structure and meteorological variables, including surface temperature, humidity, and winds. A ship-based spectrometer instrument provided remotely-sensed total column amounts of NO2 and O3 for direct comparison with satellite measurements. Ozonesondes and radiosondes were also launched 1-3 times daily from the R/V Point Sur to provide O3 and meteorological vertical profile observations. The ground-based observations, primarily at LUMCON, included spectrometer-measured column NO2 and O3, in-situ NO2, VOCs, and planetary boundary layer structure. A NO2sonde was also mounted on a vehicle with the goal to detect pollution onshore from offshore ONG activities during onshore flow; data were collected along coastal Louisiana from Burns Point Park to Grand Isle to the tip of the Mississippi River delta. The in-situ measurements were reported in ICARTT files or Excel files. The remote sensing data are in either HDF or netCDF files.

Collection Disciplines Spatial Temporal
SCOAPE Ground Site Data
Aerosols,  Clouds Spatial Coverage:
(27, 29.5), (-92, -87.5)
Temporal Coverage:
2019-04-09 - 2019-05-21
SCOAPE Pandora Column Observations
Field Campaigns Spatial Coverage:
(27, 29.5), (-92, -87.5)
Temporal Coverage:
2019-04-10 - 2019-05-21
SCOAPE R/V Point Sur Data
Aerosols,  Clouds,  Radiation Budget,  Tropospheric Composition Spatial Coverage:
(26, 31.5), (-94, -84)
Temporal Coverage:
2019-05-09 - 2019-05-19
SCOAPE Balloon and Ozonesondes Data
Tropospheric Composition Spatial Coverage:
(27.5, 30), (-92, -86.5)
Temporal Coverage:
2019-05-11 - 2019-05-19

SCOAPE Citations

Thompson, Anne M.; Kollonige, Debra E.; Stauffer, Ryan M.; Kotsakis, Alexander E.; Abuhassan, Nader; Lamsal, Lok N.; Swap, Robert J.; Blake, Donald R.; Townsend‐Small, Amy; Wecht, Holli D. (2023). Two Air Quality Regimes in Total Column NO2 Over the Gulf of Mexico in May 2019: Shipboard and Satellite Views.

Thompson, Anne M.; Kollonige, Debra E.; Stauffer, Ryan Michael; Kotsakis, Alexander; Abuhassan, Nader; Lamsal, Lok N.; swap, Robert J; Blake, Donald Ray; Townsend-Small, Amy; Wecht, Holli D (2021). Two Air Quality Regimes in Total Column NO2 over the Gulf of Mexico in May 2019: Shipboard and Satellite Views. Earth and Space Science Open Archive, 1.

De Young, Russell; Carrion, William; Ganoe, Rene; Pliutau, Denis; Gronoff, Guillaume; Berkoff, Timothy; Kuang, Shi (2019). Langley mobile ozone lidar: ozone and aerosol atmospheric profiling for air quality research. Applied Optics, 56 (3), 721.

Dreessen, Joel; Sullivan, John; Delgado, Ruben (2018). Observations and impacts of transported Canadian wildfire smoke on ozone and aerosol air quality in the Maryland region on June 9–12, 2015. Journal of the Air & Waste Management Association, 842.

Ahmadov, R.; McKeen, S.; Trainer, M.; Banta, R.; Brewer, A.; Brown, S.; Edwards, P. M.; de Gouw, J. A.; Frost, G. J.; Gilman, J.; Helmig, D.; Johnson, B.; Karion, A.; Koss, A.; Langford, A.; Lerner, B.; Olson, J.; Oltmans, S.; Peischl, J.; Pétron, G.; Pichugina, Y.; Roberts, J. M.; Ryerson, T.; Schnell, R.; Senff, C.; Sweeney, C.; Thompson, C.; Veres, P. R.; Warneke, C.; Wild, R.; Williams, E. J.; Yuan, B.; Zamora, R. (2017). Understanding high wintertime ozone pollution events in an oil- and natural gas-producing region of the western US. Atmospheric Chemistry and Physics, 15 (1), 411.

Cooper, Owen R.; Langford, Andrew O.; Parrish, David D.; Fahey, David W. (2017). Challenges of a lowered U.S. ozone standard. Science, 348 (6239), 1096.

Creamean J M, Neiman P J, Coleman T, Senff C J, Kirgis G, Alvarez R J, and Yamamoto A (2016). Colorado air quality impacted by long-range-transported aerosol: a set of case studies during the 2015 Pacific Northwest fires. Atmospheric Chemistry and Physics, 16 (18), 12329.

Cooper O R, Ru-Shan G, Tarasick D, Leblanc T, and Sweeney C (2012). Long-term ozone trends at rural ozone monitoring sites across the United States, 1990–2010. Journal of Geophysical Research: Atmospheres, 117

Cooper O R, Parrish D D, Stohl A, Trainer M, Nédélec P, Thouret V, Cammas J P, Oltmans S J, Johnson B J, Tarasick D, Leblanc T, McDermid I S, Jaffe D, Gao R, Stith J, Ryerson T, Aikin K, Campos T, Weinheimer A, and Avery M A (2010). Increasing springtime ozone mixing ratios in the free troposphere over western North America. Nature, 463 344.

Cooper O R, Trainer M, Thompson A M, Oltmans S J, Tarasick D W, Witte J C, Stohl A, Eckhardt S, Lelieveld J, Newchurch M J, Johnson B J, Portmann R W, Kalnajs L, Dubey M K, Leblanc T, McDermid I S, Forbes G, Wolfe D, Carey-Smith T, Morris G A, Lefer B, Rappenglück B, Joseph E, Schmidlin F, Meagher J, Fehsend F C, Keating T J, Van Curen R A, and Minschwaner K (2007). Evidence for a recurring eastern North America upper tropospheric ozone maximum during summer. Journal of Geophysical Research: Atmospheres, 112

Cooper O R, Stohl A, Trainer M, Thompson A M, Witte J C, Oltmans S J, Morris G, Pickering K E, Crawford J H, Chen G, Cohen R C, Bertram T H, Wooldridge P, Perring A, Brune W H, Merrill J, Moody J L, Tarasick D, Nédélec P, Forbes G, Newchurch M J, Schmidlin F J, Johnson B J, Turquety S, Baughcum S L, Ren X, Fehsendfeld F C, Meagher J F, Spichtinger N, Brown C C, McKeen S A, McDermid I S, and Leblanc T (2006). Large upper tropospheric ozone enhancements above midlatitude North America during summer: In situ evidence from the IONS and MOZAIC ozone measurement network. Journal of Geophysical Research: Atmospheres, 111