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Full catalog/S5P_L1B_RA_BD1_HiR
S5P_L1B_RA_BD1_HiR·v3·dataset

Raw ultraviolet light readings, band 1 (Sentinel-5P)

Sentinel-5P TROPOMI Radiance product band 1 (UV detector) L1B 5.5km x 21km V3 (S5P_L1B_RA_BD1_HiR) at GES DISC
atmosphere NASA GES_DISC Level 1B active
In plain English

What it measures. Raw, calibrated measurements of ultraviolet light captured by the satellite's band-1 detector, recording how much UV energy reached the sensor along with companion calibration data.

How it's made. Collected by the TROPOMI instrument on ESA's Sentinel-5P satellite and processed to Level-1B; this version adds stray-light correction and higher along-track detail (about 5.5 km at nadir).

How & where you'd use it. A foundational input rather than a finished product: scientists use these UV readings to derive air-quality and atmospheric-gas products.

What's measured

ATMOSPHERE › ATMOSPHERIC RADIATION › ATMOSPHERIC EMITTED RADIATIONATMOSPHERE › ATMOSPHERIC RADIATION › NET RADIATIONATMOSPHERE › ATMOSPHERIC RADIATION › RADIATIVE FORCINGATMOSPHERE › ATMOSPHERIC RADIATION › SCATTERINGATMOSPHERE › ATMOSPHERIC RADIATION › ULTRAVIOLET RADIATIONSPECTRAL/ENGINEERING › PLATFORM CHARACTERISTICSSPECTRAL/ENGINEERING › PLATFORM CHARACTERISTICS › FLIGHT DATA LOGSSPECTRAL/ENGINEERING › PLATFORM CHARACTERISTICS › ORBITAL CHARACTERISTICSSPECTRAL/ENGINEERING › PLATFORM CHARACTERISTICS › VIEWING GEOMETRYSPECTRAL/ENGINEERING › SENSOR CHARACTERISTICS › GEOLOCATIONSPECTRAL/ENGINEERING › SENSOR CHARACTERISTICS › VIEWING GEOMETRYSPECTRAL/ENGINEERING › ULTRAVIOLET WAVELENGTHSSPECTRAL/ENGINEERING › ULTRAVIOLET WAVELENGTHS › ULTRAVIOLET RADIANCE

Coverage & cadence

  • Time span2018-04-30 → ongoing
  • Measured bySentinel-5P (TROPOMI)
  • Processing levelLevel 1B
  • Spatial extent-180, -90, 180, 90
  • 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

Starting with version 3, dynamic straylight correction has been implemented, residual background correction has been applied, and the Calibration Key Data (CKD) have been updated. Starting from August 6th in 2019, Sentinel-5P TROPOMI along-track high spatial resolution (~5.5km at nadir) has been implemented. For data before August 6th of 2019, please check S5P_L1B_RA_BD1_1 data collection. The Copernicus Sentinel-5 Precursor (Sentinel-5P or S5P) satellite mission is one of the European Space Agency's (ESA) new mission family - Sentinels, and it is a joint initiative between the Kingdom of the Netherlands and the ESA. The sole payload on Sentinel-5P is the TROPOspheric Monitoring Instrument (TROPOMI), which is a nadir-viewing 108 degree Field-of-View push-broom grating hyperspectral spectrometer, covering the wavelength of ultraviolet-visible (UV-VIS, 270nm to 495nm), near infrared (NIR, 675nm to 775nm), and shortwave infrared (SWIR, 2305nm-2385nm). TROPOMI Level-1B (L1B) product is generated by the Koninklijk Nederlands Meteoroligisch Instituut (KNMI) TROPOMI L01B processor from Level-0 input data and auxiliary data products with the netCDF-4 enhanced model. It provides users with radiance, irradiance, calibration and engineering products.

Get the data

s5p_l1b_ra_bd1_hir_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="S5P_L1B_RA_BD1_HiR",
    version="3",
    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 GES_DISC
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.