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Full catalog/sentinel-5p-l2-hcho-offl
sentinel-5p-l2-hcho-offl·dataset

Atmospheric formaldehyde, standard product (Copernicus)

Sentinel-5P Level 2 Formaldehyde (OFFL)
atmosphere ESA ESA Copernicus active
In plain English

What it measures. Reports how much formaldehyde is present in the atmosphere, mapped in detail across the globe.

How it's made. Produced from TROPOMI on ESA Copernicus's Sentinel-5P satellite as a Level-2 offline product, processed for higher accuracy.

How & where you'd use it. Used to study air quality and to trace sources of smog and emissions from fires and vegetation.

What's measured

SentinelCopernicusESASatelliteGlobalAtmosphereL2HCHOOFFLEUEC

Coverage & cadence

  • Time span2018-04-30 → ongoing
  • Spatial extent-180, -90, 180, 90

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

This Collection provides Sentinel-5P Level-2 HCHO products, which contains high-resolution imagery of atmospheric formaldehyde concentrations.

Get the data

copernicus_access.py
# ESA Copernicus Data Space — open STAC API (free account)
from pystac_client import Client

cat = Client.open("https://stac.dataspace.copernicus.eu/v1")
search = cat.search(
    collections=["sentinel-5p-l2-hcho-offl"],   # add _cog or _nc for a format variant
    bbox=(-10, 35, 30, 60),             # your area (W,S,E,N)
    datetime="2024-01-01/2024-12-31",
)
items = list(search.items())            # then read assets with rioxarray / xarray
Browsing the Copernicus STAC is open; downloading bytes needs a free Copernicus Data Space account.