Faint glow from growing plants (MetOp-A, daily)
What it measures. The faint glow that plants give off during photosynthesis, known as solar-induced fluorescence, measured daily over the world's land areas. This glow signals how actively vegetation is growing.
How it's made. Estimated from light recorded by the GOME-2 instrument on Europe's MetOp-A satellite, with both raw and bias-adjusted values provided per day.
How & where you'd use it. Helps researchers gauge plant productivity for carbon-cycle and farming studies. Because the signal is faint and noisy and only lightly validated, results should be used carefully.
What's measured
Coverage & cadence
- Time span2007-02-01 → 2018-02-01
- Measured byMETOP-A (GOME-2)
- Processing levelLevel 2
- Spatial extent-180, -89.7804, 180, 89.5996
- FormatsnetCDF-4 classic
- 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-A with ~0.5 nm spectral resolution and wavelengths between 734 and 758 nm. GOME-2 covers global land on an orbital basis at a resolution of approximately 40 km x 80 km (before 15 July 2013) or 40 km x 40 km (since 15 July 2013). Data are provided for the period from 2007-02-01 to 2018-02-01. Each file contains daily raw and bias-adjusted solar-induced fluorescence, quality control information, and ancillary data. SIF measurements can provide information on vegetation's functional status, including light-use efficiency and global primary productivity, which can be used for global carbon cycle modeling and agricultural applications. The GOME-2 SIF product is inherently noisy due to low signal levels and has undergone only a limited amount of validation. The data are provided in netCDF format.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="MetOpA_GOME2_SIF_V2_2292",
version="2",
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. Official links
- Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data. GET DATA
- OpenDAP URL USE SERVICE API
- ORNL DAAC Data Set Documentation VIEW RELATED INFORMATION
- L2 Daily Solar-Induced Fluorescence (SIF) from MetOp-A GOME-2, 2007-2018, V2: MetOpA_GOME2_SIF_V2.pdf VIEW RELATED INFORMATION