Haze, dust and smoke in the air, daily (VIIRS NOAA-20, 0.05°)
What it measures. A daily global map of airborne haze, dust, and smoke (aerosols), along with air temperature, ozone, and water vapor, at about 0.05-degree resolution.
How it's made. Built from the VIIRS instrument on the NOAA-20 satellite by averaging the best-quality daytime readings from a lower-level product onto a climate-modeling grid.
How & where you'd use it. Designed to feed climate simulation models and to support air-quality and atmospheric studies.
What's measured
Coverage & cadence
- Time span2018-01-05 → ongoing
- Measured byNOAA-20 (VIIRS)
- Processing levelLevel 3
- Spatial extent-180, -90, 180, 90
- FormatsHDF-EOS5
- 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
The VIIRS/JPSS1 Aerosol Daily L3 Global 0.05 Deg CMG, Short-name VJ104ANC product provides VIIRS aerosol, air temperature, ozone and water vapor data at 0.05-degree resolution. This product is based on a Climate Modeling Grid (CMG) for the purpose of being used in climate simulation models. This is derived by using a weighted average of the best quality observation form only daytime data from Level 2 product, VJ104_L2. This daily product record starts from January 5th, 2018. This L3 daily product, in HDF5 file format , contains 5 Science Data Set (SDS) layers.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="VJ104ANC",
version="2",
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 LAADSBrowsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.