How warm the sea surface is (MetOp-B IASI, per-pass)
What it measures. How warm the very top skin of the sea surface is, measured for each satellite pass at about 12-km detail near the center of the swath.
How it's made. Derived in near real time from the IASI infrared instrument on Europe's MetOp-B satellite, which reads the infrared energy radiating from the sea surface, following the international GHRSST data standard.
How & where you'd use it. Feeds weather forecasting, ocean monitoring, and climate work, and combines well with other sea-surface temperature sources to build complete ocean-temperature maps.
What's measured
Coverage & cadence
- Time span2016-01-07 → ongoing
- Measured byMETOP-B (IASI)
- Processing levelLevel 2P
- Spatial extent-180, -90, 180, 90
- FormatsnetCDF-4
- StatusACTIVE
What you can do with it
- Watch sea-surface temperature and marine heatwaves
- Spot algal blooms and ocean-colour shifts
- Support fisheries and coastal monitoring
Official description
A Group for High Resolution Sea Surface Temperature (GHRSST) Level 2P dataset based on multi-channel sea surface temperature (SST) retrievals generated in real-time from the Infrared Atmospheric Sounding Interferometer (IASI) on the European Meteorological Operational-B (MetOp-B)satellite (launched 17 Sep 2012). The European Organization for the Exploitation of Meteorological Satellites (EUMETSAT),Ocean and Sea Ice Satellite Application Facility (OSI SAF) is producing SST products in near realtime from METOP/IASI. The Infrared Atmospheric Sounding Interferometer (IASI) measures inthe infrared part of the electromagnetic spectrum at a horizontal resolution of 12 km at nadir up to40km over a swath width of about 2,200 km. With 14 orbits in a sun-synchronous mid-morningorbit (9:30 Local Solar Time equator crossing, descending node) global observations can beprovided twice a day. The SST retrieval is performed and provided by the IASI L2 processor atEUMETSAT headquarters. The product format is compliant with the GHRSST Data Specification(GDS) version 2.
Get the data
import earthaccess
earthaccess.login(strategy="netrc") # free Earthdata Login
results = earthaccess.search_data(
short_name="IASI_SST_METOP_B-OSISAF-L2P-v1.0",
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 POCLOUD Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package. Official links
- Data Use and Citation Guidelines VIEW RELATED INFORMATION
- OSI SAF Metop-A IASI Sea Surface Temperature L2P (OSI-208): Validation report VIEW RELATED INFORMATION
- Description of the GHRSST Project VIEW RELATED INFORMATION
- August T, et al. IASI on Metop-A: Operational Level 2 retrievals after five years in orbit, J Quant Spectrosc Radiat Transfer (2012) VIEW RELATED INFORMATION
- Low Earth Orbiter Sea Surface Temperature Product User Manual VIEW RELATED INFORMATION
- Documentation on the GDS version 2 format specification VIEW RELATED INFORMATION
- Group for High Resolution Sea Surface Temperature Information VIEW RELATED INFORMATION
- Sea Surface Temperature measurement description. VIEW RELATED INFORMATION