GCOM-C/SGLI L2 Cloud flag Classification (1km)

  • DOI: 10.57746/EO.01gs73b3a5wggdxqa0f3wc93zr
  • Last Updated: 2023-02-14
Data Progress: In Work
G-Portal

Product Summary

GCOM-C/SGLI L2 Cloud Flag Classification (1km) dataset is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). GCOM-C is a Sun-synchronous sub-recurrent orbit satellite launched on December 23, 2017. It mounts SGLI sensor to observe long-term geophysical conditions based on 28 variables, including aerosol and vegetation, out of four Earth subsystems: atmosphere, land, ocean, and cryosphere. These data are helpful to improve the global warming prediction accuracy. The SGLI has a swath of 1150 km in the visible band and 1400 km in the infrared band. Level 2 products consist of derived physical variables based on Level 1B products, such as meteorological data.
The CLFG dataset includes Clear Confidence Level (0~1, 1 is clear), Cloud Inhomogeneity, phase, and the relevant information.
The cloud/clear discrimination algorithm (CLAUDIA) and the cloud microphysical properties algorithm (CAPCOM) are utilized, and Nakajima et al. 2019 (https://doi.org/10.1186/s40645-019-0295-9 ) describe the methodologies in detail.
The provided format is HDF5. The spatial resolution is 1 km. The projection method is EQA. The spatial coverage 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_CLFG_1km
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, 2018-12-06, Notavailable
Version 2, 2020-06-29, Available
Version 3, 2021-11-29, Available

File Format
HDF5
Dataset Type
None / None
Resolution
Spatial Resolution
250 m
Temporal Resolution
None
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 Cloud flag Classification (1km)
Distribution Format
HDF5
Fees
Free
Citation
Japan Aerospace Exploration Agency. 2018. GCOM-C/SGLI L2 Cloud flag Classification (1km). https://doi.org/10.57746/EO.01gs73b3a5wggdxqa0f3wc93zr
Access Constraints

No constraints but users need to be registered with the G-portal User Registration system to download files.

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
  • Climatology/Meteorology/Atmosphere
  • Imagery/Base Maps/Earth Cover
  • Climatology/Meteorology/Atmosphere
Science Keywords
  • EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD DROPLET DISTRIBUTION
  • EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES
  • EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD DROPLET DISTRIBUTION
  • EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD TYPES
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.