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Full catalog/CMC0.2deg-CMC-L4-GLOB-v2.0
CMC0.2deg-CMC-L4-GLOB-v2.0·v2.0·dataset

How warm the sea surface is worldwide (0.2 degree)

GHRSST Level 4 CMC0.2deg Global Foundation Sea Surface Temperature Analysis (GDS version 2)
ocean NASA POCLOUD Level 4 netCDF-4
In plain English

What it measures. Daily global maps of sea surface temperature, on a roughly 0.2-degree grid. It aims to give a consistent 'foundation' temperature of the ocean surface everywhere.

How it's made. Produced daily at the Canadian Meteorological Center by merging infrared and microwave satellite readings from many missions with ship and buoy measurements, using the prior day's map as a starting point.

How & where you'd use it. Supports weather forecasting, ocean and climate monitoring, and any work that needs reliable daily sea-surface temperature worldwide.

What's measured

OCEANS › OCEAN TEMPERATURE › SEA SURFACE TEMPERATURE › FOUNDATION SEA SURFACE TEMPERATURE

Coverage & cadence

  • Time span1991-09-01 → 2017-03-18
  • Measured byTRMM (TMI) · CORIOLIS (WINDSAT) · NOAA-16 (AVHRR-3) · NOAA-17 (AVHRR-3) · Aqua (AMSR-E) · NOAA-19 (AVHRR-3) · ERS-1 (ATSR-2) · ERS-2 (ATSR-2) · NOAA-20 (AVHRR-3) · BUOYS (DRIFTING BUOYS) · METOP-A (AVHRR-3) · ENVISAT (AATSR)
  • Processing levelLevel 4
  • Spatial extent-180, -90, 180, 90
  • FormatsnetCDF-4
  • StatusCOMPLETE

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 4 sea surface temperature (SST) analysis produced daily on an operational basis at the Canadian Meteorological Center. This dataset merges infrared satellite SST at varying points in the time series from the (A)TSR series of radiometers from ERS-1, ERS-2 and Envisat, AVHRR from NOAA-16,17,18,19 and METOP-A, and microwave data from TMI, AMSR-E and Windsat in conjunction with in situ observations of SST from drifting buoys and ships from the ICOADS program. It uses the previous days analysis as the background field for the statistical interpolation used to assimilate the satellite and in situ observations. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.

Get the data

cmc0.2deg-cmc-l4-glob-v2.0_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="CMC0.2deg-CMC-L4-GLOB-v2.0",
    version="2.0",
    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.