EarthCARE - Earth clouds, aerosol and radiation explorer: It's objectives and Japanese sensor designs

Toshiyoshi Kimura; Kayoko Kondo; Hiroshi Kumagai; Hiroshi Kuroiwa; Chu Ishida; Riko Oki; Akihiko Kuze; Makoto Suzuki; Hajime Okamoto; Ryoichi Imasu; Teruyuki Nakajima

doi:10.1117/12.462582

EarthCARE - Earth clouds, aerosol and radiation explorer: It's objectives and Japanese sensor designs

Toshiyoshi Kimura, Kayoko Kondo, Hiroshi Kumagai, Hiroshi Kuroiwa, Chu Ishida, Riko Oki, Akihiko Kuze, Makoto Suzuki, Hajime Okamoto, Ryoichi Imasu, Teruyuki Nakajima

Research output: Contribution to journal › Conference article › peer-review

Abstract

IPCC third report says that we have still a lot of uncertainties to predict global warming even using latest GCMs. Regarding atmospheric radiation, uncertainty of the radiative forcing is still large, which is mainly caused by aerosols, clouds, and water vapor interacting among them. National Space Development Agency of JAPAN (NASDA) and Communications Research Laboratory (CRL) started Phase-A study with European Space Agency (ESA) in the EarthCARE project. The objectives of EarthCARE project are to observe vertical and horizontal distributions and physical characteristics of aerosols and clouds from a satellite, and also to measure the precise Earth radiation budget simultaneously. Finally we will be able to evaluate physical processes of clouds and aerosols regarding the radiative budget and forcing. The EarthCARE satellite carries 5 sensors, namely Cloud Profiling RADAR (CPR), Atmospheric LIDAR (ATLID), Multi-Spectral Imager (MSI), Broad Band Radiometer (BBR) and Fourier Transform Spectrometer (FTS). The result of the pre-Phase A study shows the synergy observation benefits using some compensative combinations of sensors, such as CPR / ATLID for clouds, ATLID / MSI for aerosols, BBR / FTS for the radiation budget. NASDA and CRL are studying FTS and CPR, respectively. CPR is a 94GHz RADAR using 2.5m diameter reflector with Doppler measurement mode. The sensitivity is -38dBZ. The vertical and horizontal resolution is 100 m, 1 km, respectively. FTS is a Michelson interferometer of which spectral measurement range is from 5.7 μm to 25 μm with 0.5 cm^-1 unapodized spectral resolution. FOV is 10 km by 10 km. EarthCARE is planned to be launched in 2008 for 2 years mission. Phase-A study will continue until the end of 2003.

Original language	English
Pages (from-to)	510-519
Number of pages	10
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4882
DOIs	https://doi.org/10.1117/12.462582
Publication status	Published - 2002
Externally published	Yes
Event	Remote Sensing of Clouds and the Atmosphere VII - Agia Pelagia, Crete, Greece Duration: Sept 24 2002 → Sept 27 2002

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1117/12.462582

Cite this

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title = "EarthCARE - Earth clouds, aerosol and radiation explorer: It's objectives and Japanese sensor designs",

abstract = "IPCC third report says that we have still a lot of uncertainties to predict global warming even using latest GCMs. Regarding atmospheric radiation, uncertainty of the radiative forcing is still large, which is mainly caused by aerosols, clouds, and water vapor interacting among them. National Space Development Agency of JAPAN (NASDA) and Communications Research Laboratory (CRL) started Phase-A study with European Space Agency (ESA) in the EarthCARE project. The objectives of EarthCARE project are to observe vertical and horizontal distributions and physical characteristics of aerosols and clouds from a satellite, and also to measure the precise Earth radiation budget simultaneously. Finally we will be able to evaluate physical processes of clouds and aerosols regarding the radiative budget and forcing. The EarthCARE satellite carries 5 sensors, namely Cloud Profiling RADAR (CPR), Atmospheric LIDAR (ATLID), Multi-Spectral Imager (MSI), Broad Band Radiometer (BBR) and Fourier Transform Spectrometer (FTS). The result of the pre-Phase A study shows the synergy observation benefits using some compensative combinations of sensors, such as CPR / ATLID for clouds, ATLID / MSI for aerosols, BBR / FTS for the radiation budget. NASDA and CRL are studying FTS and CPR, respectively. CPR is a 94GHz RADAR using 2.5m diameter reflector with Doppler measurement mode. The sensitivity is -38dBZ. The vertical and horizontal resolution is 100 m, 1 km, respectively. FTS is a Michelson interferometer of which spectral measurement range is from 5.7 μm to 25 μm with 0.5 cm-1 unapodized spectral resolution. FOV is 10 km by 10 km. EarthCARE is planned to be launched in 2008 for 2 years mission. Phase-A study will continue until the end of 2003.",

author = "Toshiyoshi Kimura and Kayoko Kondo and Hiroshi Kumagai and Hiroshi Kuroiwa and Chu Ishida and Riko Oki and Akihiko Kuze and Makoto Suzuki and Hajime Okamoto and Ryoichi Imasu and Teruyuki Nakajima",

year = "2002",

doi = "10.1117/12.462582",

language = "English",

volume = "4882",

pages = "510--519",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Remote Sensing of Clouds and the Atmosphere VII ; Conference date: 24-09-2002 Through 27-09-2002",

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TY - JOUR

T1 - EarthCARE - Earth clouds, aerosol and radiation explorer

T2 - Remote Sensing of Clouds and the Atmosphere VII

AU - Kimura, Toshiyoshi

AU - Kondo, Kayoko

AU - Kumagai, Hiroshi

AU - Kuroiwa, Hiroshi

AU - Ishida, Chu

AU - Oki, Riko

AU - Kuze, Akihiko

AU - Suzuki, Makoto

AU - Okamoto, Hajime

AU - Imasu, Ryoichi

AU - Nakajima, Teruyuki

PY - 2002

Y1 - 2002

N2 - IPCC third report says that we have still a lot of uncertainties to predict global warming even using latest GCMs. Regarding atmospheric radiation, uncertainty of the radiative forcing is still large, which is mainly caused by aerosols, clouds, and water vapor interacting among them. National Space Development Agency of JAPAN (NASDA) and Communications Research Laboratory (CRL) started Phase-A study with European Space Agency (ESA) in the EarthCARE project. The objectives of EarthCARE project are to observe vertical and horizontal distributions and physical characteristics of aerosols and clouds from a satellite, and also to measure the precise Earth radiation budget simultaneously. Finally we will be able to evaluate physical processes of clouds and aerosols regarding the radiative budget and forcing. The EarthCARE satellite carries 5 sensors, namely Cloud Profiling RADAR (CPR), Atmospheric LIDAR (ATLID), Multi-Spectral Imager (MSI), Broad Band Radiometer (BBR) and Fourier Transform Spectrometer (FTS). The result of the pre-Phase A study shows the synergy observation benefits using some compensative combinations of sensors, such as CPR / ATLID for clouds, ATLID / MSI for aerosols, BBR / FTS for the radiation budget. NASDA and CRL are studying FTS and CPR, respectively. CPR is a 94GHz RADAR using 2.5m diameter reflector with Doppler measurement mode. The sensitivity is -38dBZ. The vertical and horizontal resolution is 100 m, 1 km, respectively. FTS is a Michelson interferometer of which spectral measurement range is from 5.7 μm to 25 μm with 0.5 cm-1 unapodized spectral resolution. FOV is 10 km by 10 km. EarthCARE is planned to be launched in 2008 for 2 years mission. Phase-A study will continue until the end of 2003.

AB - IPCC third report says that we have still a lot of uncertainties to predict global warming even using latest GCMs. Regarding atmospheric radiation, uncertainty of the radiative forcing is still large, which is mainly caused by aerosols, clouds, and water vapor interacting among them. National Space Development Agency of JAPAN (NASDA) and Communications Research Laboratory (CRL) started Phase-A study with European Space Agency (ESA) in the EarthCARE project. The objectives of EarthCARE project are to observe vertical and horizontal distributions and physical characteristics of aerosols and clouds from a satellite, and also to measure the precise Earth radiation budget simultaneously. Finally we will be able to evaluate physical processes of clouds and aerosols regarding the radiative budget and forcing. The EarthCARE satellite carries 5 sensors, namely Cloud Profiling RADAR (CPR), Atmospheric LIDAR (ATLID), Multi-Spectral Imager (MSI), Broad Band Radiometer (BBR) and Fourier Transform Spectrometer (FTS). The result of the pre-Phase A study shows the synergy observation benefits using some compensative combinations of sensors, such as CPR / ATLID for clouds, ATLID / MSI for aerosols, BBR / FTS for the radiation budget. NASDA and CRL are studying FTS and CPR, respectively. CPR is a 94GHz RADAR using 2.5m diameter reflector with Doppler measurement mode. The sensitivity is -38dBZ. The vertical and horizontal resolution is 100 m, 1 km, respectively. FTS is a Michelson interferometer of which spectral measurement range is from 5.7 μm to 25 μm with 0.5 cm-1 unapodized spectral resolution. FOV is 10 km by 10 km. EarthCARE is planned to be launched in 2008 for 2 years mission. Phase-A study will continue until the end of 2003.

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DO - 10.1117/12.462582

M3 - Conference article

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JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

Y2 - 24 September 2002 through 27 September 2002

ER -

EarthCARE - Earth clouds, aerosol and radiation explorer: It's objectives and Japanese sensor designs

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