Index matching AIRS and MODIS observations (Aqua)
What it measures. A lookup table that matches up observations from two instruments on the same satellite, linking each AIRS measurement to the corresponding MODIS measurement so they can be studied together.
How it's made. Created by collocating AIRS and MODIS observations from the Aqua satellite and storing the matching indexes, as part of a larger effort to merge readings from several 'A-train' instruments.
How & where you'd use it. A behind-the-scenes tool for scientists combining water-vapor and cloud measurements across instruments; not a measurement product people use on its own.
What's measured
Coverage & cadence
- Time span2003-01-01 → 2016-12-31
- Measured byAqua (AIRS, MODIS)
- Processing levelLevel 2
- Spatial extent-180, -90, 180, 90
- StatusCOMPLETE
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 is Aqua AIRS-MODIS collocation indexes, in netCDF-4 format. These data map AIRS profile indexes to those of MODIS. The basic task is to bring together retrievals of water vapor and cloud properties from multiple "A-train" instruments (AIRS, AMSR-E, MODIS, AMSU, MLS, & CloudSat), classify each "scene" (instrument look) using the cloud information, and develop a merged, multi-sensor climatology of atmospheric water vapor as a function of altitude, stratified by the cloud classes. This is a large science analysis project that will require the use of SciFlo technologies to discover and organize all of the datasets, move and cache datasets as required, find space/time "matchups" between pairs of instruments, and process years of satellite data to produce the climate data records. The short name for this collections is AIRS_MDS_IND
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="AIRS_MDS_IND",
version="1.0",
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
- DATA TREE GET DATA
- Use the Earthdata Search to find and retrieve data sets across multiple data centers. GET DATA
- READ-ME VIEW RELATED INFORMATION