Satellites and Spacecraft Global Change Observation Mission - Climate "SHIKISAI" (GCOM-C)

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Project Topics

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Jul. 3, 2018 Updated

SGLI Polarimetric Radar Observation of Near Ultraviolet

The Second Generation Global Imager (SGLI) instrument aboard the JAXA satellite Global Change Observation Mission-Climate (GCOM-C) is an optical sensor capable of observations at wavelengths ranging from near ultraviolet to thermal infrared (380nm to 12µm). SGLI is optimized for polarimetric performance both front and back at red and near infrared wavelengths. Polarimetric measurement can provide data that helps researchers study the properties of light including the oscillation direction of el...


About Global Change Observation Mission - Climate "SHIKISAI" (GCOM-C)

Forecasting future global climate

The purpose of the GCOM (Global Change Observation Mission) project is the global, long-term observation of Earth's environment. GCOM is expected to play an important role in monitoring both global water circulation and climate change, and examining the health of Earth from space. Global and long-term observations (10-15 years) by GCOM will contribute to an understanding of water circulation mechanisms and climate change.

GCOM consists of two satellite series, the GCOM-W and GCOM-C. The GCOM-C, carrying a SGLI (Second generation GLobal Imager), conducts surface and atmospheric measurements related to the carbon cycle and radiation budget, such as clouds, aerosols, ocean color, vegetation, and snow and ice.

Characteristics of Global Change Observation Mission - Climate "SHIKISAI" (GCOM-C)

SGLI is an optical sensor for monitoring the long-term trends of aerosol-cloud interactions and for understanding the carbon cycle

The Second generation GLobal Imager (SGLI) on GCOM-C1 is an optical sensor capable of multi-channel observation at wavelengths from near-UV to thermal infrared wavelengths (380nm to 12µm.) SGLI also has polarimetry and forward / backward observation functions at red and near infrared wavelengths. SGLI obtains global observation data once every 2 or 3 days, with resolutions of 250m to 1km.

The SGLI observations will improve our understanding of climate change mechanisms through long-term monitoring of aerosols and clouds, as well as vegetation and temperatures, in the land and ocean regions. These observations will also contribute to enhancing the prediction accuracy of future environmental changes by improving sub-processes in numerical climate models. SGLI-derived phytoplankton and aerosol distributions are also used for mapping fisheries and for monitoring the transport of yellow dust and/or wildfire smoke.

Major Characteristics

Launch Vehicle H-IIA Launch Vehicle
Location Tanegashima Space Center
Weight 2000kg
Power 4kw
Design Life 5 years
Orbiter Sun-Synchronous Subrecurrent/ Recurrent
Altitude 798km
Inclination 98.6 degrees
Period 10:30±15min
Launch Date JFY 2017 (Scheduled)

Contents

Aug. 6, 2008
To Preserve Our Earth

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