NOAA GOES-18 ABI 2 km Full-Disk Level 2 Products

GribStream Code: goes18abi

Current coverage: 46 source-native fields from 19 ABI Level 2 full-disk product families are available for 2023-01-04 onward. Individual families begin when NOAA first published the compatible operational source version. These are observations, not forecasts; horizon is 0.

Operational record: this collection follows GOES-18 while it served in the GOES-West position on the nominal fixed grid centered near 137W. It is the current operational satellite for this slot.

One fixed grid: this dataset contains only the approximately 2 km product families on NOAA's 5,424 by 5,424 grid. The related goes18abi10km dataset contains the other resolution.

Availability and open data: gaps can occur during maneuvers, calibration, outages, seasonal retrieval limits, and product transitions. NOAA data distributed through the Open Data program are available for public use; attribution is requested and NOAA endorsement must not be implied.

Archive availability: recent observations are available first while earlier dates back to the start of the operational record are added progressively.

Description

ABI, the Advanced Baseline Imager, observes the full geostationary disk in 16 spectral bands. The calibrated channels span visible reflectance, near-infrared signals, water-vapor bands, and thermal infrared brightness temperatures.

ABI Level 2 products turn those radiances into application-focused observations of clouds, aerosols, fire, precipitation, snow, radiation, and land and ocean surfaces. Not every retrieval is valid at every pixel or time.

Daylight, clear-sky requirements, cloud screening, atmospheric assumptions, and viewing geometry affect individual fields. Spatial footprints grow toward the limb, and fire or aerosol detections should be combined with appropriate operational context.

The inventory below lists the 46 exact source selectors and their availability periods. Product families retain their original NOAA names and units.

Detail

• Archive begins: 2023-01-04
• Official NOAA GOES-R Level 2 product guide: https://goes-r.noaa.gov/products/docs/PUG-L2%2B-vol5.pdf
• Key features:
  • Sixteen CMI_C01-CMI_C16 cloud and moisture imagery bands, from visible reflectance through water-vapor and infrared brightness temperatures.
  • Derived cloud, aerosol, smoke, dust, fire, rainfall, snow, radiation, reflectance, albedo, land-temperature, and sea-surface-temperature fields where present in this satellite's operational archive.
  • One source-native 5,424 by 5,424 GOES-West fixed grid, corresponding to about 2 km sampling at nadir.
  • 46 exact selectors preserving NOAA field names and units; availability and cadence vary by product family.
• Resolution: One native geostationary fixed grid with 5,424 by 5,424 cells at about 2 km sampling at nadir. Ground footprints become larger toward the limb, and cells outside the visible Earth disk are null.
• Temporal coverage: Product-dependent full-disk observations, generally approximately every 10 minutes or hourly. Exact source scan times include seconds.
• Primary uses: Cloud and storm monitoring, tropical-cyclone analysis, wildfire and smoke detection, dust and aerosol tracking, solar-resource monitoring, satellite rainfall estimation, snow mapping, land-surface characterization, and ocean-temperature tracking.

Related datasets

• GOES-18 ABI 10 km companion collection
• GOES-19 ABI operational counterpart
• MRMS radar and multi-sensor analyses

Parameters