Daily atmosphere, cloud and surface snapshot (Aqua AIRS)
What it measures. A daily, gridded snapshot of the atmosphere and surface, including temperature profiles, water vapor, ozone, cloud properties, and surface skin temperature.
How it's made. Derived from a harmonized infrared radiance record that merges the AIRS sensor on Aqua with CrIS sensors on other satellites, gridded at half-degree resolution from both day and night passes.
How & where you'd use it. Built for climate 'fingerprinting' studies that track subtle, long-term changes in the atmosphere and surface across multiple instruments.
What's measured
Coverage & cadence
- Time span2002-08-30 → ongoing
- Measured byAqua (AIRS)
- Processing levelLevel 3
- 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
The Climate Fingerprinting Sounder Product (ClimFiSP) Version 2 provides Level 3 daily and monthly atmospheric data including temperature profiles, water vapor, ozone, cloud properties, as well as surface properties, including skin temperature and emissivity. Data are available on a ½ by ½ degree grid. These geophysical variables are derived, via the ClimFiSP retrieval algorithm, from the Climate Hyperspectral Infrared Radiance Product (CHIRP), a Level 1 radiance product that harmonizes measurements from three different infrared sounding instruments: the AIRS sensor on EOS-Aqua and the CrIS sensors on the Suomi-NPP and NOAA-20 (JPSS-1) satellites. All three platforms follow similar sun-synchronous orbits, with CLIMFISP daily records including data for both the ascending (1:30 p.m.) and descending (1:30 a.m.) orbit passes. ClimFISP retrievals derived from each instrument are provided separately to facilitate detection of potential radiance biases between the CHIRP-AIRS and CHIRP-CrIS data records, and to evaluate their impact on the long-term data record formed by merging AIRS and CrIS data.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="SNDRAQIL3SDCFSP",
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 GES_DISC Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Access the data via HTTPS. GET DATA
- Access the data via the OPeNDAP protocol. USE SERVICE API
- ClimFiSP Product User Guide:File Format and Definition VIEW RELATED INFORMATION
- ClimFiSP ATBD VIEW RELATED INFORMATION
- Use the Earthdata Search to find and retrieve data sets across multiple data centers. GET DATA