Earth Data School
About
Full catalog/oceansat-3
oceansat-3·dataset

Oceansat-3 — India's ocean-colour & fisheries satellite

Oceansat-3 (EOS-06) Ocean Colour Monitor
ocean ISRO ISRO MOSDAC active
In plain English

What it measures. The colour of the sea, which reveals phytoplankton (chlorophyll), sediment and water clarity — used to map productive, fish-rich waters off India's coasts.

How it's made. An ISRO satellite carrying an Ocean Colour Monitor and sea-surface-temperature sensor, replacing Oceansat-2.

How & where you'd use it. Potential Fishing Zone advisories for Indian fishers, harmful-bloom and coastal-water monitoring. Download from ISRO MOSDAC (free account).

What's measured

ocean colourchlorophyllfisheriesoceanISROOCMproductivitysea surface

Coverage & cadence

  • Time span2022-11-26 → ongoing
  • Spatial extent68, 6, 98, 37

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

ISRO's ocean-colour and sea-surface mission — chlorophyll, suspended sediment and potential fishing zones for the Arabian Sea and Bay of Bengal. Distributed via ISRO's MOSDAC portal (free registration).

Get the data

oceansat-3_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="oceansat-3",
    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 ISRO MOSDAC
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.