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Tropospheric Emissions: Monitoring of Pollution

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Tropospheric Emissions: Monitoring of Pollution
TEMPO attached to a communications satellite.
OperatorNASA
ManufacturerBall Aerospace
Instrument typeUV/Vis spectrometer
FunctionAtmospheric chemistry and pollution monitoring
Began operations2022 (planned)[1][2]
Websitetempo.si.edu
Properties
Resolution0.6 nm
Spectral band290–740 nm (UV, Vis)
Host spacecraft
SpacecraftIntelsat 40e [3]
OperatorIntelsat
Launch date2022 (planned)
RocketFalcon 9 (SpaceX)
Launch siteCape Canaveral
OrbitGeostationary

Tropospheric Emissions: Monitoring of Pollution (TEMPO) is a NASA Earth Venture-Instrument that will measure North American pollution at a high resolution and on an hourly basis.[4] It is an ultraviolet–visible spectrometer maintaining a constant view of North America, enabling it to provide daily data on ozone, nitrogen dioxide, and other elements in the atmosphere.

TEMPO is intended to be attached as payload on a commercial geostationary communication satellite with a constant view of the face of the Earth. TEMPO's light-collecting mirror scans a complete and constant east to west field of regard (FOR). TEMPO detectors measure reflected sunlight to and from the Earth's surface and atmosphere.[5] TEMPO "monitors air quality from Mexico to Canada" with "scientists from both Mexico and Canada sharing TEMPO activities taking place in their home countries".[6] TEMPO will form part of a geostationary constellation of pollution-monitoring assets, along with the planned Sentinel-4 from ESA and Geostationary Environment Monitoring Spectrometer (GEMS) from South Korea's KARI.[7]

On 3 February 2020, Intelsat announced that the Intelsat 40e satellite, planned for launch in 2022, will host TEMPO. Maxar Technologies, the builder of the satellite, is responsible for payload integration.[1][2]

Earth Venture-Instrument program

TEMPO, which is a collaboration between NASA and the Smithsonian Astrophysical Observatory, is NASA's first Earth Venture-Instrument (EVI) mission.[4][8] The EVI program is an element within the Earth System Science Pathfinder (ESSP) program office, which is under NASA's Science Mission Directorate Earth Science Division (SMD/ESD). EVI's are a series of innovative "science-driven, competitively selected, low cost missions". The series of "Venture Class" missions were recommended in the 2007 publication Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond.[9] "[I]nnovative research and application missions that might address any area of Earth science" are selected through frequent "openly-competed solicitations".[10]

Earth Venture missions are "small-sized competitively selected orbital missions and instrument missions of opportunity" and include NASA-ISRO Synthetic Aperture Radar (NISAR), Surface Water and Ocean Topography (SWOT), ICESat-2, SAGE III on ISS, Gravity Recovery and Climate Experiment Follow On (GRACE-FO), Cyclone Global Navigation Satellite System (CYGNSS), Ecosystem Spaceborne Thermal Radiometer Experiment on Space Station (ECOSTRESS), and the Global Ecosystem Dynamics Investigation lidar (GEDI).[11]

References

  1. ^ a b "Maxar Technologies Will Build Next-Generation Intelsat Epic Geostationary Communications Satellite with NASA Hosted Payload". Maxar Technologies (Press release). Business Wire. 3 February 2020. Retrieved 3 February 2020.
  2. ^ a b Werner, Debra (22 July 2019). "Maxar to install NASA pollution sensor on commercial satellite". SpaceNews. Retrieved 18 November 2019.
  3. ^ https://spaceflightnow.com/2020/03/17/spacex-selected-to-launch-intelsat-telecom-satellite-nasa-pollution-monitor/ - 18 March 2020
  4. ^ a b "TEMPO Twitter page". Twitter.com. Retrieved 5 June 2019. "TEMPO will measure pollution of N. America hourly at high spatial resolution. NASA's first Earth Venture Instrument mission is a collaboration with Smithsonian".
  5. ^ "TEMPO Instrument". Smithsonian Astrophysical Observatory. Retrieved 5 June 2019.
  6. ^ @TEMPO_Mission (5 June 2019). "TEMPO is a North American instrument..." (Tweet) – via Twitter.
  7. ^ Zoogman, P.; et al. (January 2017). "Tropospheric emissions: Monitoring of pollution (TEMPO)" (PDF). Journal of Quantitative Spectroscopy and Radiative Transfer. 186: 17–39. Bibcode:2017JQSRT.186...17Z. doi:10.1016/j.jqsrt.2016.05.008.
  8. ^ "Missions: Earth Venture-Instrument". NASA. Retrieved 5 June 2019.
  9. ^ Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond. National Academies Press. 2007. doi:10.17226/11820. ISBN 978-0-309-66714-2. LCCN 2007936350.
  10. ^ "Missions: Venture Class". NASA. Retrieved 5 June 2019.
  11. ^ Neeck, Steven P. (October 2015). "The NASA Earth Science Flight Program: An update". Proceedings Volume 9639, Sensors, Systems, and Next-Generation Satellites XIX. 963907. Bibcode:2015SPIE.9639E..07N. doi:10.1117/12.2199919. ISBN 978-1-62841-849-1.
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