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Full catalog/PACE_HARP2_L1B_SCI
PACE_HARP2_L1B_SCI·v3·dataset

Raw multi-angle polarized light data (PACE HARP2)

PACE HARP2 Level-1B Science Data, version 3
ocean NASA OB_CLOUD Level 1 active netCDF-4
In plain English

What it measures. Calibrated readings of light from many angles and polarizations, as captured by the sensor, with no further interpretation into Earth properties yet.

How it's made. Comes from the HARP2 camera on NASA's PACE satellite, with the raw recordings converted into proper engineering units (this is an early processing step).

How & where you'd use it. A building-block input that scientists use to derive higher-level products about aerosols and clouds, rather than something most people read directly.

What's measured

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

Coverage & cadence

  • Time span2024-02-22 → ongoing
  • Measured byPACE (HARP2)
  • 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 1B (L1B) data are Level 1A (L1A) data that have been processed to instrument units (not all instruments have L1B source data).

Get the data

pace_harp2_l1b_sci_access.py
import earthaccess
earthaccess.login(strategy="netrc")          # free Earthdata Login

results = earthaccess.search_data(
    short_name="PACE_HARP2_L1B_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.