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Description

The primary sensor aboard the PACE spacecraft is the Ocean Color Instrument (OCI). It is a highly advanced optical spectrometer that will be used to measure properties of light over portions of the electromagnetic spectrum. It will enable continuous measurement of light at finer wavelength resolution than previous NASA satellite sensors, extending key system ocean color data records for climate studies.

Version Description

Initial dataset

Product Summary

Platforms
PACE
Instruments
OCI
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Coordinate System
CARTESIAN
Granule Spatial Representation
GEODETIC
Temporal Extent
2024-03-05 to Present
Data Partner
Ocean Biology Processing Group (OBPG) ,
Ocean Biology Distributed Active Archive Center (OB.DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/GCDC/OB.DAAC)
Concept ID
C3392966961-OB_CLOUD
Data State
ACTIVE
Number of Files/Granules
88422
Processing Level
1
Published
Updated
Science Keywords
Ocean Color

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA Ocean Biology Processing Group. (2024). PACE OCI Level-1C Science Data, version 3 [Data set]. NASA Ocean Biology Distributed Active Archive Center. https://doi.org/10.5067/PACE/OCI/L1C/SCI/3 Date Accessed: 2025-12-14

Documents

Variables

Variables are a set of physical properties whose values determine the characteristics or behavior of something. For example, temperature and pressure are variables of the atmosphere. Parameters and variables can be used interchangeably. Variable level attributes provide individual information for each variable.

The Name in this table is the variable name. Fill value indicates missing or undefined data points in a variable. Valid range is the range of values the variable can store. Scale factor is used to increase or decrease the size of an object and can be used to correct for distortion. For questions on a specific variable, please use the Earthdata Forum.

Name Description Units Data Type Fill Value Valid Range Scale Factor
bin_attributes/nadir_view_time bin_attributes/nadir_view_time seconds since 2024-03-15 float64 -32767 0 to 172800 N/A
bin_attributes/view_time_offsets bin_attributes/view_time_offsets seconds float64 -32767 -200 to 200 N/A
geolocation_data/height geolocation_data/height meters int16 -32767 -10000 to 10000 N/A
geolocation_data/height_stdev geolocation_data/height_stdev meters int16 -32767 0 to 1000 N/A
geolocation_data/latitude geolocation_data/latitude degrees_north float32 -32767 -90 to 90 N/A
geolocation_data/longitude geolocation_data/longitude degrees_east float32 -32767 -180 to 180 N/A
geolocation_data/scattering_angle geolocation_data/scattering_angle degrees int16 -32767 0 to 18000 0.0099999997764826
geolocation_data/sensor_azimuth_angle geolocation_data/sensor_azimuth_angle degrees int16 -32767 -18000 to 18000 0.0099999997764826
geolocation_data/sensor_zenith_angle geolocation_data/sensor_zenith_angle degrees int16 -32767 0 to 18000 0.0099999997764826
geolocation_data/solar_azimuth_angle geolocation_data/solar_azimuth_angle degrees int16 -32767 -18000 to 18000 0.0099999997764826
geolocation_data/solar_zenith_angle geolocation_data/solar_zenith_angle degrees int16 -32767 0 to 18000 0.0099999997764826
observation_data/i observation_data/i W m^-2 sr^-1 um^-1 float32 -32767 0 to 999 N/A
observation_data/i_stdev observation_data/i_stdev W m^-2 sr^-1 um^-1 float32 -32767 0 to 800 N/A
observation_data/number_of_observations observation_data/number_of_observations N/A int16 N/A 0 to 999 N/A
observation_data/qc observation_data/qc N/A uint8 255 0 to 10 N/A
sensor_views_bands/intensity_bandpass sensor_views_bands/intensity_bandpass nm float32 -32767 2.5 to 100 N/A
sensor_views_bands/intensity_f0 sensor_views_bands/intensity_f0 W m^-2 um^-1 float32 -32767 0 to 4000 N/A
sensor_views_bands/intensity_wavelength sensor_views_bands/intensity_wavelength nm float32 -32767 320 to 2260 N/A
sensor_views_bands/sensor_view_angle sensor_views_bands/sensor_view_angle degrees float32 -32767 -89 to 89 N/A
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