GCOM-C/SGLI L2 Cloud properties

Name: GCOM-C/SGLI L2 Cloud properties
Creator: Japan Aerospace Exploration Agency (JAXA)
Published: 2018-01-01
License: http://earth.jaxa.jp/policy/en.html

DOI: 10.57746/EO.01gs73b3c7kj640ss6zrvc74r3
Last Updated: 2023-02-14

Data Progress: In Work

Product Summary

GCOM-C/SGLI L2 Cloud properties 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 contents are listed in the following:
CLOT_W and CLOR_W: Optical thickness (unitless) and effective radius of water cloud droplets (mm), respectively.
CLOT_I are CLER_I: Optical thickness (unitless) and effective radius of ice cloud droplets (mm), respectively.
CLTT and CLTH: Temperature and Height of the cloud top layer (kelvin and km), respectively.
CLTYPE: Cloud discrimination flag including the classification of cloud type and phase (unitless)
The cloud properties are retrieved with the Comprehensive Analysis Program for Cloud Optical Measurements (CAPCOM), initially developed for the GLI mission. The current algorithm is optimized for the SGLI characteristics and uses L2 Cloud flag classification.
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

1 km

Location

GEOGRAPHIC REGION > GLOBAL

Dataset Short Name

GCOM-C_SGLI_L2_CLPR

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

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: 1 km
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 properties
Distribution Format: HDF5
Fees: Free
Citation: Japan Aerospace Exploration Agency. 2018. GCOM-C/SGLI L2 Cloud properties. https://doi.org/10.57746/EO.01gs73b3c7kj640ss6zrvc74r3
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

Science Keywords

EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD CONDENSATION NUCLEI
EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD PROPERTIES

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.