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minniewong committed May 28, 2024
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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 2 (L2) Cloud Pressure layer provides information on the optical centroid pressure of clouds derived using the O<sub>2</sub>-O<sub>2</sub> cloud retrieval algorithm and is measured in hectopascals (hPa).

Imagery is available as approximately six-minute granules for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), and the imagery resolution is 1 km. The layer is filtered to display high-quality pixels with solar zenith angles less than 80 degrees.
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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 2 (L2) Nitrogen Dioxide Vertical Column Stratosphere layer provides information on the amount of nitrogen dioxide in the stratosphere. This is provided as the total number of nitrogen dioxide molecules in the stratospheric column of air above one square centimeter on the Earth’s surface (molecules/cm<sup>2</sup>).

Imagery is available as approximately six-minute granules for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), and the imagery resolution is 1 km. The layer is filtered to display high-quality pixels using the main data quality flag, solar zenith angle, and effective cloud fraction variables.
Imagery is available as approximately six-minute granules for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), and the imagery resolution is 1 km. The layer is filtered to display high-quality pixels using the main data quality flag, and solar zenith angle variables.

Nitrogen dioxide Level 2 files provide trace gas information at TEMPO’s native spatial resolution for individual granules. Each granule covers the entire North-South TEMPO FOR but only a portion of the East-West FOR. The temporal resolution of a nominal scan is approximately one hour during daylight hours, with more frequent scans in the morning over the eastern portion of the FOR and in the evenings over the western portion of the FOR.

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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 2 (L2) Nitrogen Dioxide Vertical Column Troposphere layer provides information on the amount of nitrogen dioxide in the troposphere. This is provided as the total number of nitrogen dioxide molecules in the tropospheric column of air above one square centimeter on the Earth’s surface (molecules/cm<sup>2</sup>).

Imagery is available as approximately six-minute granules for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), and the imagery resolution is 1 km. The layer is filtered to display high-quality pixels using the main data quality flag, solar zenith angle, and effective cloud fraction variables.
Imagery is available as approximately six-minute granules for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), and the imagery resolution is 1 km. The layer is filtered to display high-quality pixels using the main data quality flag, and solar zenith angle variables.

Nitrogen dioxide Level 2 files provide trace gas information at TEMPO’s native spatial resolution for individual granules. Each granule covers the entire North-South TEMPO FOR but only a portion of the East-West FOR. The temporal resolution of a nominal scan is approximately one hour during daylight hours, with more frequent scans in the morning over the eastern portion of the FOR and in the evenings over the western portion of the FOR.

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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 3 (L3) Nitrogen Dioxide Vertical Column Stratosphere layer provides information on the amount of nitrogen dioxide in the stratosphere. This is provided as the total number of nitrogen dioxide molecules in the stratospheric column of air above one square centimeter on the Earth’s surface (molecules/cm<sup>2</sup>).

Imagery is available as approximately one-hour scans for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), the Level 3 product resolution is 0.02 x 0.02 degrees, and the imagery resolution is 2 km. The layer is filtered to display high-quality pixels using the main data quality flag, solar zenith angle, and effective cloud fraction variables.
Imagery is available as approximately one-hour scans for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), the Level 3 product resolution is 0.02 x 0.02 degrees, and the imagery resolution is 2 km. The layer is filtered to display high-quality pixels using the main data quality flag, and solar zenith angle variables.

Nitrogen dioxide Level 3 files provide trace gas information on a regular grid. Level 3 files are derived by combining information from all Level 2 files constituting a TEMPO East-West scan cycle, using an area-weighted re-gridding approach. The temporal resolution of a nominal scan is approximately one hour during daylight hours, with more frequent scans in the morning over the eastern portion of the FOR and in the evenings over the western portion of the FOR.

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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 3 (L3) Nitrogen Dioxide Vertical Column Troposphere layer provides information on the amount of nitrogen dioxide in the troposphere. This is provided as the total number of nitrogen dioxide molecules in the tropospheric column of air above one square centimeter on the Earth’s surface (molecules/cm<sup>2</sup>).

Imagery is available as approximately one-hour scans for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), the Level 3 product resolution is 0.02 x 0.02 degrees, and the imagery resolution is 2 km. The layer is filtered to display high-quality pixels using the main data quality flag, solar zenith angle and effective cloud fraction variables.
Imagery is available as approximately one-hour scans for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), the Level 3 product resolution is 0.02 x 0.02 degrees, and the imagery resolution is 2 km. The layer is filtered to display high-quality pixels using the main data quality flag, and solar zenith angle variables.

Nitrogen dioxide Level 3 files provide trace gas information on a regular grid. Level 3 files are derived by combining information from all Level 2 files constituting a TEMPO East-West scan cycle, using an area-weighted re-gridding approach. The temporal resolution of a nominal scan is approximately one hour during daylight hours, with more frequent scans in the morning over the eastern portion of the FOR and in the evenings over the western portion of the FOR.

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The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 3 (l3) Cloud Fraction layer provides information on the effective cloud fraction (a unitless quantity) derived using the mixed Lambert Equivalent Reflectivity (LER) model from the total ozone retrieval algorithm. The retrieval is based on the Ozone Monitoring Instrument Total Ozone Mapping Spectrometer (OMI TOMS) V8.5 algorithm adapted for TEMPO.
The Tropospheric Emissions: Monitoring of Pollution (TEMPO) Level 3 (L3) Cloud Fraction layer provides information on the effective cloud fraction (a unitless quantity) derived using the mixed Lambert Equivalent Reflectivity (LER) model from the total ozone retrieval algorithm. The retrieval is based on the Ozone Monitoring Instrument Total Ozone Mapping Spectrometer (OMI TOMS) V8.5 algorithm adapted for TEMPO.

Imagery is available as approximately one-hour scans for daylight hours over North America. The sensor’s native spatial resolution is ~2 km x 4.75 km at the center of TEMPO’s field of regard (FOR), the Level 3 product resolution is 0.02 x 0.02 degrees, and the imagery resolution is 2 km. The layer is filtered to display high-quality pixels using the solar zenith angle variable.

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