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Full catalog/MetOpB_GOME2_SIF_2182
MetOpB_GOME2_SIF_2182·v1·dataset

Faint glow from photosynthesizing plants, daily (METOP-B, 2013-2021)

L2 Daily Solar-Induced Fluorescence (SIF) from MetOp-B GOME-2, 2013-2021
biosphere NASA ORNL_CLOUD Level 2 netCDF-4
In plain English

What it measures. The very faint glow that plants give off while photosynthesizing (solar-induced fluorescence), estimated daily over global land at roughly 40 by 80 km resolution from 2013 to 2021. Each file includes both raw and adjusted values plus quality details.

How it's made. Derived from the GOME-2 instrument on Europe's MetOp-B satellite. The signal is naturally weak and noisy, and the data have had only limited validation.

How & where you'd use it. Offers a window into how actively vegetation is photosynthesizing, useful for carbon-cycle modeling and agriculture, though users should treat it cautiously given the noise.

What's measured

BIOSPHERE › ECOLOGICAL DYNAMICS › ECOSYSTEM FUNCTIONS › PHOTOSYNTHESISBIOSPHERE › VEGETATION › CHLOROPHYLLBIOSPHERE › ECOLOGICAL DYNAMICS › ECOSYSTEM FUNCTIONS › PRIMARY PRODUCTIONBIOSPHERE › VEGETATION › LEAF CHARACTERISTICSLAND SURFACE › SURFACE RADIATIVE PROPERTIES › REFLECTANCEBIOSPHERE › VEGETATION › SOLAR INDUCED FLUORESCENCE

Coverage & cadence

  • Time span2013-04-01 → 2021-06-07
  • Measured byMETOP-B (GOME-2)
  • Processing levelLevel 2
  • Spatial extent-180, -89.7694, 180, 89.5944
  • FormatsnetCDF-4
  • StatusCOMPLETE

What you can do with it

  • Map vegetation, forests and biomass
  • Monitor ecosystem productivity and carbon
  • Support habitat and biodiversity studies
Official description

This dataset provides Level 2 (L2) Solar-Induced Fluorescence (SIF) of chlorophyll estimates derived from the Global Ozone Monitoring Experiment 2 (GOME-2) instrument on the European Meteorological Satellite (EUMETSAT) MetOp-B with ~0.5 nm spectral resolution and wavelengths between 734 and 758 nm. GOME-2 covers global land (observations up to 75-degree solar zenith angle) at a resolution of approximately 40 km x 80. Data are provided for the period from 2013-04-01 to 2021-06-07. Each file contains daily raw and bias-adjusted solar-induced fluorescence along with quality control information and ancillary data. SIF measurements can provide information on the functional status of vegetation including light-use efficiency and global primary productivity that can be used for global carbon cycle modeling and agricultural applications. The GOME-2 SIF product is inherently noisy owing to low signal levels and has undergone only a limited amount of validation. The data are provided in netCDF (*.nc) format.

Get the data

metopb_gome2_sif_2182_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="MetOpB_GOME2_SIF_2182",
    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 ORNL_CLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.