d007·dataset
Methane plumes from above
EMIT L2B Methane Enhancement Data
LP DAAC EMITL2BCH4ENH cloud-native 60 m opportunistic (ISS overpasses, ~16-day revisit) COG atmospheregreenhouse-gasesenergy
The methane-enhancement signature retrieved from EMIT hyperspectral radiances. Has shifted global methane policy via UNEP-IMEO MARS workflow.
EMIT L2B Methane Enhancement Data
The methane-enhancement signature retrieved from EMIT hyperspectral radiances. Has shifted global methane policy via UNEP-IMEO MARS workflow.
Access
- Python (earthaccess):
short_name='EMITL2BCH4ENH' - Portal: https://lpdaac.usgs.gov/products/emitl2bch4enhv001/
- Visualizer: https://methane.jpl.nasa.gov/
Gotchas
- False positives exist; use QA flag rigorously
- Use L2BCH4PLM for vector polygons (lags by weeks); use L2BCH4ENH for latest
- No coverage above ±52° latitude (ISS orbit)
Related
- Other datasets: d008
- Questions: q02
Sources
The access details, code, and sources below are kept in the original English for technical accuracy.
Quick access (cloud-direct)
import earthaccess
earthaccess.login(strategy="netrc")
results = earthaccess.search_data(
short_name="EMITL2BCH4ENH",
bounding_box=(-122.5, 37.2, -121.8, 37.9),
temporal=("2024-01-01", "2024-12-31"),
)
files = earthaccess.open(results) # stream from LP DAACBrowsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. 📚 Problem Finder KB
Not yet tracked in the KB.