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Full catalog/TEMPO_IRR_L1
TEMPO_IRR_L1·vV04·dataset

How much sunlight the Sun sends, for calibration (TEMPO)

TEMPO solar irradiance V04 (PROVISIONAL)
atmosphere NASA LARC_CLOUD Level 1B active netCDF-4
In plain English

What it measures. How much sunlight, across ultraviolet and visible colors, the Sun is sending, measured for instrument calibration rather than to study Earth.

How it's made. Recorded by TEMPO through its onboard solar diffuser and calibrated into wavelength-resolved solar irradiance; this is a provisional Level 1 release.

How & where you'd use it. A calibration reference that keeps TEMPO's air-quality measurements accurate; scientists rely on it indirectly through TEMPO's pollution products.

What's measured

ATMOSPHERE › ATMOSPHERIC RADIATION › SOLAR IRRADIANCE

Coverage & cadence

  • Time span2023-08-01 → ongoing
  • Measured byIS-40e (TEMPO)
  • Processing levelLevel 1B
  • FormatsnetCDF-4
  • StatusACTIVE

What you can do with it

  • Map air pollutants — NO₂, aerosols, ozone
  • Track greenhouse gases and Earth's energy budget
  • Feed weather and air-quality analysis
Official description

Level 1 irradiance (PROVISIONAL) files provide solar irradiance measured using the working solar diffuser. Each file includes the measured solar irradiance for all the North-South cross-track pixels. The files are provided in netCDF4 format, and contain information on radiometrically and wavelength calibrated solar irradiance for the UV and visible bands, corresponding noise, parameterized wavelength grid, solar viewing geometry, quality flags and other ancillary information. The product is produced using the L0-1b processor which includes multiple steps: (1) Image processing to produce radiometrically calibrated radiance, and(2) Additional wavelength calibration to improve wavelength registration. These data reached provisional validation on December 9, 2024.

Get the data

tempo_irr_l1_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TEMPO_IRR_L1",
    version="V04",
    bounding_box=(-122.5, 37.2, -121.8, 37.9),  # your area (W,S,E,N)
    temporal=("2024-01-01", "2024-12-31"),       # your dates
)
files = earthaccess.open(results)   # stream straight from LARC_CLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.