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Full catalog/TRPSDL2TATMCRS1FS
TRPSDL2TATMCRS1FS·v1·dataset

Air temperature through the atmosphere (NOAA-20)

TROPESS CrIS-JPSS1 L2 Atmospheric Temperature for Forward Stream, Standard Product V1 (TRPSDL2TATMCRS1FS) at GES DISC
atmosphere NASA GES_DISC Level 2 active
In plain English

What it measures. Air temperature at many heights through the atmosphere, from the ground all the way up into the high stratosphere, along with an estimate of how certain each reading is.

How it's made. Built from infrared measurements by the CrIS instrument on the NOAA-20 satellite, processed with a NASA estimation method into a profile of temperature at 31 levels and gridded at about 14 km.

How & where you'd use it. Helps weather and climate researchers track how the atmosphere's temperature is structured layer by layer, and feeds into studies of air composition and atmospheric processes.

What's measured

ATMOSPHERE › ATMOSPHERIC TEMPERATURE › UPPER AIR TEMPERATURE

Coverage & cadence

  • Time span2021-04-01 → ongoing
  • Measured byJPSS-1 (CrIS)
  • Processing levelLevel 2
  • 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 TROPESS CrIS-JPSS1 L2 Atmospheric Temperature for Forward Stream, Standard Product contains the vertical distribution of the retrieved atmospheric state of atmospheric temperature (TATM), formal uncertainties, and diagnostic information measured by the CrIS instrument on the JPSS-1 (NOAA-20) satellite. The forward stream standard product is global for the time period from 2021-04-01 to present. The NASA TRopospheric Ozone and Precursors from Earth System Sounding (TROPESS) project, uses an optimal estimation algorithm, known as the MUlti-SpEctra, MUlti-SpEcies, Multi-SEnsors (MUSES). The data files are written in the netCDF version 4 file format, and each file contains one day of data. The data have a spatial resolution of 14 km (CrIS nadir FOV), and are reported at 31 vertical levels from the surface to 0.1 hPa. The principal investigator for the TROPESS project is Kevin W. Bowman.

Get the data

trpsdl2tatmcrs1fs_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="TRPSDL2TATMCRS1FS",
    version="1",
    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.