Tropospheric emissions: Monitoring of pollution (TEMPO)

TEMPO was selected in 2012 by NASA as the first Earth Venture Instrument, for launch between 2018 and 2021. It will measure atmospheric pollution for greater North America from space using ultraviolet and visible spectroscopy. TEMPO observes from Mexico City, Cuba, and the Bahamas to the Canadian oi...

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Bibliographic Details
Published in:	Journal of quantitative spectroscopy & radiative transfer Vol. 186; pp. 17 - 39
Main Authors:	Zoogman, P., Liu, X., Suleiman, R.M., Pennington, W.F., Flittner, D.E., Al-Saadi, J.A., Hilton, B.B., Nicks, D.K., Newchurch, M.J., Carr, J.L., Janz, S.J., Andraschko, M.R., Arola, A., Baker, B.D., Canova, B.P., Chan Miller, C., Cohen, R.C., Davis, J.E., Dussault, M.E., Edwards, D.P., Fishman, J., Ghulam, A., González Abad, G., Grutter, M., Herman, J.R., Houck, J., Jacob, D.J., Joiner, J., Kerridge, B.J., Kim, J., Krotkov, N.A., Lamsal, L., Li, C., Lindfors, A., Martin, R.V., McElroy, C.T., McLinden, C., Natraj, V., Neil, D.O., Nowlan, C.R., O׳Sullivan, E.J., Palmer, P.I., Pierce, R.B., Pippin, M.R., Saiz-Lopez, A., Spurr, R.J.D., Szykman, J.J., Torres, O., Veefkind, J.P., Veihelmann, B., Wang, H., Wang, J., Chance, K.
Format:	Journal Article
Language:	English
Published:	Goddard Space Flight Center Elsevier Ltd 01-01-2017 Journal of Quantitative Spectroscopy and Radiative Transfer
Subjects:	Environment Pollution Tropospheric Measurement Suite Geostationary (geo) Orbit
Online Access:	Get full text
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Description
Summary:	TEMPO was selected in 2012 by NASA as the first Earth Venture Instrument, for launch between 2018 and 2021. It will measure atmospheric pollution for greater North America from space using ultraviolet and visible spectroscopy. TEMPO observes from Mexico City, Cuba, and the Bahamas to the Canadian oil sands, and from the Atlantic to the Pacific, hourly and at high spatial resolution (~2.1km N/S×4.4km E/W at 36.5°N, 100°W). TEMPO provides a tropospheric measurement suite that includes the key elements of tropospheric air pollution chemistry, as well as contributing to carbon cycle knowledge. Measurements are made hourly from geostationary (GEO) orbit, to capture the high variability present in the diurnal cycle of emissions and chemistry that are unobservable from current low-Earth orbit (LEO) satellites that measure once per day. The small product spatial footprint resolves pollution sources at sub-urban scale. Together, this temporal and spatial resolution improves emission inventories, monitors population exposure, and enables effective emission-control strategies. TEMPO takes advantage of a commercial GEO host spacecraft to provide a modest cost mission that measures the spectra required to retrieve ozone (O3), nitrogen dioxide (NO2), sulfur dioxide (SO2), formaldehyde (H2CO), glyoxal (C2H2O2), bromine monoxide (BrO), IO (iodine monoxide), water vapor, aerosols, cloud parameters, ultraviolet radiation, and foliage properties. TEMPO thus measures the major elements, directly or by proxy, in the tropospheric O3 chemistry cycle. Multi-spectral observations provide sensitivity to O3 in the lowermost troposphere, substantially reducing uncertainty in air quality predictions. TEMPO quantifies and tracks the evolution of aerosol loading. It provides these near-real-time air quality products that will be made publicly available. TEMPO will launch at a prime time to be the North American component of the global geostationary constellation of pollution monitoring together with the European Sentinel-4 (S4) and Korean Geostationary Environment Monitoring Spectrometer (GEMS) instruments. •TEMPO is under development to collect geostationary air quality measurements.•TEMPO will measure every hour during daylight over greater North America.•TEMPO will have the spatial resolution to measure sub-urban variability.•The mission’s primary data products include tropospheric ozone and related species.•TEMPO’s time-resolved observations form a revolutionary data set for air quality.
Bibliography:	GSFC-E-DAA-TN41101 GSFC Goddard Space Flight Center
ISSN:	0022-4073 1879-1352
DOI:	10.1016/j.jqsrt.2016.05.008