GCOM-C/SGLI L2 Statistics-Snow gain size of shallow layer (1-Month,1km)
- DOI: 10.57746/EO.01gs73b5yxn1xaxr5aw4sx5m0z
- Last Updated: 2023-02-14
Product Summary
GCOM-C/SGLI L2 Statistics-Snow grain size of shallow layer (1-month, 1km) 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.
This dataset includes Snow grain size of shallow layer. To estimate the snow grain size from the radiance, their relationship is learned as a nonlinear function using the neural network training, and the snow grain size of shallow layer is estimated based on the observed radiance by nonlinear optimal estimation method.
The statistics values stored to product are average (AVE), root-mean-square (RMS), maximum value (MAX), minimum value (MIN), number of input data (Ninput), number of used data (Nused), date of observation (Date), and quality flag (QA_flag).
The provided format is HDF5. The spatial resolution is 1 km. The statistical period is 1 month also 8 days 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
1km
Location
- GEOGRAPHIC REGION > GLOBAL
- Dataset Short Name
- GCOM-C_SGLI_L2_statistics-SGSL_1month_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, 2018-11-01, Notavailable
Version 2, 2020-10-21, Available
Version 3, 2021-11-29, Available- File Format
- HDF5
- Dataset Type
- 1month / Tile
- Resolution
-
- Spatial Resolution
- 1km
- Temporal Resolution
- 1month
- 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-Snow gain size of shallow layer (1-Month,1km)
- Distribution Format
- HDF5
- Fees
- Free
- Citation
- Japan Aerospace Exploration Agency. 2018. GCOM-C/SGLI L2 Statistics-Snow gain size of shallow layer (1-Month,1km). https://doi.org/10.57746/EO.01gs73b5yxn1xaxr5aw4sx5m0z
- 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
-
- Science Keywords
-
- EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE
- EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE TEMPERATURE
- EARTH SCIENCE > CRYOSPHERE > SNOW/ICE > SNOW/ICE TEMPERATURE
- 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.