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Full catalog/JASON_CS_S6A_L2_ALT_LR_RED_OST_NTC_G01_UNVALIDATED
JASON_CS_S6A_L2_ALT_LR_RED_OST_NTC_G01_UNVALIDATED·vG01·dataset

Sea surface height, low-resolution reduced, unvalidated (Sentinel-6A)

Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) NTC Reduced Ocean Surface Topography (Unvalidated) G01
ocean NASA POCLOUD Level 2 netCDF-4
In plain English

What it measures. Sea surface height anomaly (how high or low the sea sits compared to normal), significant wave height, and wind speed, in a trimmed-down low-resolution version. The data are flagged as unvalidated.

How it's made. A Level-2 low-resolution product from the Poseidon-4 altimeter on Sentinel-6A, in the delayed, fully reprocessed (60-day latency) form, reduced to the core variables.

How & where you'd use it. Supports ocean and sea-level monitoring and wave and wind studies, though the unvalidated label means it should be used with caution for critical work.

What's measured

OCEANS › SEA SURFACE TOPOGRAPHY › SEA SURFACE HEIGHTOCEANS › OCEAN WAVES › SIGNIFICANT WAVE HEIGHT

Coverage & cadence

  • Time span2020-11-30 → ongoing
  • Measured bySentinel-6A (Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER)
  • Processing levelLevel 2
  • Spatial extent-180, -66.15, 180, 66.15
  • 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

Provides low resolution (LR) non-time critical (NTC; 60-day latency) measurements of sea surface height anomaly (SSHA), Significant Wave Height (SWH), and Wind Speed. The NTC product is analogous to the Jason-3 GDR product.

Get the data

jason_cs_s6a_l2_alt_lr_red_ost_ntc_g01_unvalidated_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="JASON_CS_S6A_L2_ALT_LR_RED_OST_NTC_G01_UNVALIDATED",
    version="G01",
    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.