GCOM-C/SGLI L2 Statistics-Land Surface Reflectance(GEOP) (8-Days,250m)

  • DOI: 10.57746/EO.01gs73b4afjpdsszc0cqrka40a
  • Last Updated: 2023-02-14
Data Progress: In Work
G-Portal

Product Summary

GCOM-C/SGLI L2 Statistics-Land Surface Reflectance (GEOP) (8-Days, 250m) is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). Using the Level2 atmospheric corrected land surface reflectance tile product as input, BRDF correction is performed for the land surface in clear region using data of multiple days, and the reflectance equivalent to that at nadir view direction is stored in the output product. The region definition and spatial resolutions of the output product are kept the input data. In 8-days processing, the land surface reflectance data of the past 24 days, respectively are fitted to generate appropriate BRDF models with the correction coefficients.
GCOM-C is Sun-synchronous sub-recurrent Orbit satellite launched on December 23, 2017, which mounts SGLI and conducts long-term global observations of geophysical variables related to the global climate system across 28 items including aerosol and vegetation over 4 areas of atmosphere, land, ocean, and cryosphere. The data will be used to contribute to higher accuracy of global warming prediction. The SGLI has swath of 1150 km in the visible band and 1400 km in the infrared band.
The Geometry data of VNR-PL sensor is stored. This dataset includes of following SDs:
GEOP_Date is Date identification of RSRF/GEOP [unit:none]
GEOP_Ninput is Input data number of RSRF/GEOP [unit:none]
GEOP_Nused is Used data number of RSRF/GEOP [unit:none]
GEOP_QA_flag is Level-3 8-bit flag of RSRF/GEOP [unit:none]
Relative_azimuth_AVE is Normal of Relative azimuth angle [degree]
Relative_azimuth_MAX is Maximum of Relative azimuth angle [degree]
Relative_azimuth_MIN is Minimum of Relative azimuth angle [degree]
Sensor_zenith_AVE is Normal of Sensor zenith angle [degree]
Sensor_zenith_MAX is Maximum of Sensor zenith angle [degree]
Sensor_zenith_MIN is Minimum of Sensor zenith angle [degree]
Solar_zenith_AVE is Normal of Solar zenith angle [degree]
Solar_zenith_MAX is Maximum of Sensor zenith angle [degree]
Solar_zenith_MIN is Minimum of Solar zenith angle [degree]
The provided format is HDF5. The spatial resolution is 250 m. The statistical period is 8 days also 1 month statistics is available. The projection method is EQA. The generation unit is "Tile". The current version of the product is Version 3. The Version 2 is also available.

Platform
GCOM-C
Sensor
SGLI

Coverage

Temporal Coverage

2018-01-01 to Present

Spatial Coverage

Bounding Rectangle
(90.0°, -180.0°, -90.0°, 180.0°)

Resolution

250 m

Location

  • GEOGRAPHIC REGION > GLOBAL
Dataset Short Name
GCOM-C_SGLI_L2_statistics-GEOP_8days_250m
Platform / Sensor
GCOM-C / SGLI
Coverage
Spatial Coverage
Bounding Rectangle
(90.0°, -180.0°, -90.0°, 180.0°)
Temporal Coverage
2018-01-01 to Present
Product Level ID
L2
Version Description

Version 1, 2018-11-01, Notavailable
Version 2, 2020-06-29, Available
Version 3, 2021-11-29, Available

File Format
HDF5
Dataset Type
8days / Tile
Resolution
Spatial Resolution
250 m
Temporal Resolution
8days
Dataset Progress
In Work
Projection
EQA
Collection Data Type
SCIENCE_QUALITY
Get Data
https://gportal.jaxa.jp/gpr/?lang=en
Dataset Title
GCOM-C/SGLI L2 Statistics-Land Surface Reflectance(GEOP) (8-Days,250m)
Distribution Format
HDF5
Fees
Free
Citation
Japan Aerospace Exploration Agency. 2018. GCOM-C/SGLI L2 Statistics-Land Surface Reflectance(GEOP) (8-Days,250m). https://doi.org/10.57746/EO.01gs73b4afjpdsszc0cqrka40a
Access Constraints

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Use Constraints

The user is entitled to use G-Portal data free of charge without any restrictions (including commercial use) except for the condition about acknowledgement of data credit as stipulated in G-portal terms of use 7.(2).Click here for detailed G-Portal data usage constrains.

G-Portal Terms of service
https://gportal.jaxa.jp/gpr/index/eula?lang=en
ISO Topic Categories
  • Imagery/Base Maps/Earth Cover
  • Environment
  • Climatology/Meteorology/Atmosphere
  • Imagery/Base Maps/Earth Cover
  • Environment
  • Climatology/Meteorology/Atmosphere
Science Keywords
  • EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
  • EARTH SCIENCE > LAND SURFACE > SURFACE RADIATIVE PROPERTIES > REFLECTANCE
Location Keywords
  • GEOGRAPHIC REGION > GLOBAL

ISO Topic Categories is the keywords in the ISO 19115 - Geographic Information Metadata.

Science Keywords hosts Global Change Master Directory (GCMD) Keywords which are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables.