GCOM-C/SGLI L1A Shortwave Infrared Thermal Infrared (250m)
- DOI: 10.57746/EO.01gs73b2zrt3dzpcfxwrpfssmq
- Last Updated: 2023-02-14
Product Summary
GCOM-C/SGLI L1A Shortwave Infrared Thermal Infrared (250m) dataset is obtained from the SGLI sensor onboard GCOM-C and produced by the Japan Aerospace Exploration Agency (JAXA). 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.
GCOM-C/SGLI Level 1A products are using the data from the satellite as inputs and the following processes are applied on the input data: determination scene range, deletion of duplicated packets and filling of missing data with dummy data, calculation of radiometric correction information, calculation of geometric information and creation of missing packet information and quality information.
This product is Observation DN value observed by SGLI-IRS Radiometer (Short Wavelength Infrared (SWI: 1.05 micrometer to 2.21 micrometer, 4 channels) and Thermal Infrared (TIR: 10.8 micrometer, 12.0 micrometer, 2 channels)) are stored for each band as image data.
The provided format is HDF5. The spatial resolution is 250 m also 1 km is available. The geometry is not corrected, and the observation position of ground of pixel is varied each band. Therefore, the latitude/longitude information of 10 pixels interval in each band is appended. However, there is no interval in AT direction of IRS. The stored geometric information is the center position of the pixel.
The current version of the product is Version 2.
- 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_L1A_SWI_and_TIR_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
- L1A
- Version Description
Version 1, 2018-12-06, Notavailable
Version 2, 2021-11-29, Available- File Format
- HDF5
- Dataset Type
- None / None
- Resolution
-
- Spatial Resolution
- 250 m
- Temporal Resolution
- None
- Dataset Progress
- In Work
- Projection
- None
- Collection Data Type
- SCIENCE_QUALITY
- Get Data
- https://gportal.jaxa.jp/gpr/?lang=en
- Dataset Title
- GCOM-C/SGLI L1A Shortwave Infrared Thermal Infrared (250m)
- Distribution Format
- HDF5
- Fees
- Free
- Citation
- Japan Aerospace Exploration Agency. 2018. GCOM-C/SGLI L1A Shortwave Infrared Thermal Infrared (250m). https://doi.org/10.57746/EO.01gs73b2zrt3dzpcfxwrpfssmq
- 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
-
- Geoscientific Information
- Imagery/Base Maps/Earth Cover
- Science Keywords
-
- EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE
- EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > THERMAL INFRARED
- 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.