TEMPO gridded ozone total column V03 (PROVISIONAL)

NASA/TEMPO/O3_L3_QA
Dataset Availability
2023-08-02T00:00:00Z–2025-09-16T00:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("NASA/TEMPO/O3_L3_QA")
Tags
air-quality nasa ozone pollution satellite-imagery tempo tropomi

Description

The TEMPO gridded ozone total column V03 (PROVISIONAL) is a Level 3 dataset providing essential total column ozone information on a regular grid across North America. Generated from the TEMPO instrument on the IS-40e platform, the data is created by combining and re-gridding Level 2 files from single East-West scan cycles using an area-weighted methodology. These measurements are critical for monitoring continental air quality and atmospheric chemistry and are distributed by the NASA Langley Research Center (LaRC) ASDC.

This Level 3 product serves as a quality-controlled version of the Level 2 data, pre-filtered to include only the highest-quality retrievals. Specifically, it includes pixels with a quality flag of 0, solar and viewing zenith angles (SZA/VZA) below 80°, and an effective cloud fraction under 0.5.

This dataset includes auxiliary measurements such as effective and radiative cloud properties, sulfur dioxide index, and terrain pressure. These parameters support a wide range of research applications while ensuring that users have access to research-ready data that has already been screened for common retrieval anomalies and extreme geometries.

Documentation:

Bands

Pixel Size
2226 meters

Bands

Name Units Pixel Size Description
relative_azimuth_angle deg meters

Relative azimuth angle
solar_zenith_angle deg meters

Solar zenith angle
viewing_zenith_angle deg meters

Viewing zenith angle
column_amount_o3 Dobson meters

Total column ozone
fc Dimensionless meters

Effective cloud fraction (mixed LER model)
o3_below_cloud Dobson meters

Ozone concentration below cloud
radiative_cloud_frac Dimensionless meters

Radiative cloud fraction
so2_index Dimensionless meters

Sulfur dioxide index
uv_aerosol_index Dimensionless meters

UV aerosol index
max_column_sample molecules/cm^2 meters

Maximum column sample
min_column_sample molecules/cm^2 meters

Minimum column sample
num_column_samples Dimensionless meters

Number of column samples
cloud_pressure hPa meters

Cloud pressure
terrain_height m meters

Terrain height
terrain_pressure hPa meters

Terrain pressure
weight km^2 meters

Sum of Level 2 pixel overlap areas, representing the total spatial coverage of valid data within each grid cell. It serves as the weighting factor for calculating the gridded average, where lower values indicate partial coverage or data removed due to quality filtering.

Terms of Use

Terms of Use

This dataset is in the public domain and is available without restriction on use and distribution. See NASA's Earth Science Data & Information Policy for additional information.

Citations

Citations:

  • NASA/LARC/SD/ASDC.(2024). TEMPO gridded ozone total column V03 (PROVISIONAL) [Data set]. NASA Langley Atmospheric Science Data Center DAAC. Retrieved from 10.5067/IS-40e/TEMPO/O3TOT_L3.003

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

var collection = ee.ImageCollection('NASA/TEMPO/O3_L3_QA')
    .filterDate('2024-04-01', '2024-04-05')

var visParams = {
  min: 0,
  max: 500,
  bands: ['column_amount_o3'],
  palette: [
    '000080', '0000D9', '4000FF', '8000FF', '0080FF',
    '00D9FF', '80FFFF', 'FF8080', 'D90000', '800000'
  ]
};
Map.setCenter(-95.06, 42.02, 3)
Map.addLayer(collection, visParams, 'Total Column Ozone')
Open in Code Editor
The TEMPO gridded ozone total column V03 (PROVISIONAL) is a Level 3 dataset providing essential total column ozone information on a regular grid across North America. Generated from the TEMPO instrument on the IS-40e platform, the data is created by combining and re-gridding Level 2 files from single East-West scan …
NASA/TEMPO/O3_L3_QA, air-quality,nasa,ozone,pollution,satellite-imagery,tempo,tropomi
2023-08-02T00:00:00Z/2025-09-16T00:00:00Z
10 -170 80 -10
Google Earth Engine