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Full catalog/PACE_SPEXONE_L1C_SCI
PACE_SPEXONE_L1C_SCI·v3·dataset

Raw polarized sky and ocean light measurements (PACE SPEXone)

PACE SPEXone Level-1C Science Data, version 3
ocean NASA OB_CLOUD Level 1 active netCDF-4
In plain English

What it measures. Calibrated measurements of light split into its colors (spectra), with added labels showing which channels came straight from the earlier processing stage and which were filled in. This is a low-level technical product.

How it's made. Produced by the SPEXone polarimeter on NASA's PACE satellite, one step up from the Level 1B data, with extra descriptive variables added.

How & where you'd use it. A building-block input for specialists; most people benefit from it through the higher-level ocean and aerosol products built on top, rather than using it directly.

What's measured

OCEANS › OCEAN OPTICSSPECTRAL/ENGINEERING › INFRARED WAVELENGTHSSPECTRAL/ENGINEERING › SENSOR CHARACTERISTICSSPECTRAL/ENGINEERING › VISIBLE WAVELENGTHS

Coverage & cadence

  • Time span2024-02-23 → ongoing
  • Measured byPACE (SPEXone)
  • Processing levelLevel 1
  • 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

Level 1C (L1C) data are Level 1B (L1B) data that include new variables to describe the spectra. These variables allow the user to identify which L1C channels have been copied directly from the L1B and which have been synthesized from L1B and why.

Get the data

pace_spexone_l1c_sci_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="PACE_SPEXONE_L1C_SCI",
    version="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 OB_CLOUD
Browsing CMR needs no login. Downloading or streaming bytes needs a free Earthdata Login + the earthaccess package.