Earth Data School
About
Full catalog/TEMPO_RAD_L1
TEMPO_RAD_L1·vV04·dataset

Raw sunlight and heat measured over America (TEMPO)

TEMPO geolocated Earth radiances V04 (PROVISIONAL)
atmosphere NASA LARC_CLOUD Level 1B active netCDF-4
In plain English

What it measures. Raw, calibrated measurements of the ultraviolet and visible light coming up from North America, recorded by the TEMPO instrument at roughly 10-square-kilometer detail. It captures how much light and energy the sensor saw at each wavelength.

How it's made. Produced from TEMPO, an instrument watching North America from a high orbit, by calibrating the light readings, pinning down their exact locations using GOES weather-satellite data, and fine-tuning the wavelengths (a provisional version).

How & where you'd use it. This is a low-level input product. It's the building block from which TEMPO's air-quality products (like ozone and nitrogen dioxide) are made, so most people use it indirectly through those higher-level results.

What's measured

ATMOSPHERE › ATMOSPHERIC RADIATIONATMOSPHERE › ATMOSPHERIC RADIATION › RADIATIVE FLUX

Coverage & cadence

  • Time span2023-08-02 → 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 radiance (PROVISIONAL) files provide radiance information at TEMPO’s native spatial resolution, ~10 km^2 at the center of the Field of Regard (FOR), for individual granules. Each granule covers the entire North-South TEMPO FOR but only a portion of the East-West FOR. The files are provided in netCDF4 format, and contain information on radiometrically and wavelength calibrated and geolocated radiances for the UV and visible bands, corresponding noise, parameterized wavelength grid, geolocation, 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, (2) Image Navigation and Registration (INR) using GOES-R data, (3) Post INR processing geolocation tagging, and (4) Additional wavelength calibration to improve wavelength registration. These data reached provisional validation on December 9, 2024.

Get the data

tempo_rad_l1_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TEMPO_RAD_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.