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Full catalog/S5P_L1B_RA_BD4_HiR
S5P_L1B_RA_BD4_HiR·v3·dataset

Raw light measurements, band 4 (Sentinel-5P)

Sentinel-5P TROPOMI Radiance product band 4 (UVIS detector) L1B 5.5km x 3.5km V3 (S5P_L1B_RA_BD4_HiR) at GES DISC
atmosphere NASA GES_DISC Level 1B active
In plain English

What it measures. Holds raw light measurements (radiance and incoming sunlight) for one band of the instrument, covering ultraviolet and visible colors, before they're turned into anything about the air.

How it's made. Produced from the TROPOMI instrument on the European Sentinel-5P satellite at the calibrated-light stage, at about 5.5 km resolution.

How & where you'd use it. A low-level input most people encounter only through finished air-quality products derived from it, rather than directly.

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, 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_BD4_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_bd4_hir_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="S5P_L1B_RA_BD4_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.