EarthCARE Program Status from JAXA

Toshiyoshi KIMURAEarthCARE/CPR Project Team, JAXA

10-12 EarthCARE Workshop, Kyoto, JAPAN

Contents

• Japanese Environmental Missions and EarthCARE• EarthCARE activities in JAPAN

– Cloud Profiling Radar– Japanese Ground Segment for EarthCARE– Science activities

• Schedule

GOSAT

Atmosphere

Land Ocean

Green house gases

Vegetation production

Cloud

discharge

Snow Ice

Precipitation

Soil moisture

AerosolAerosol

sink-source

Carbon cycle and land cover

Spatial distribution of cloud and aerosols

Ocean primary production

Water vapor

Green house gases

Sea-surface temperature

Water cycle

sink-source

Water cycle

GCOM-W

Land cover

Sea-surface wind

Water cycle

Carbon

cycle

Coastal environment

Deep ocean circulationPH, nutrients, dissolved CO2

Carbon cycle

GCOM-C

EOSDecadal survey missions

NPOESS METOP

SentinelEarth Explorer

GPM/DPR

EarthCARE/CPR

3D structure of precipitation and global rain map

3D structure of cloud and aerosols

JAXA Earth Environment missions2013~26(TBD)

2011~24

2009~2014

2013~16

2013~18

For several years from 2013, all these satellites are in orbit

With ESA

With NASA

Aerosol,Water vapor-Cloud-Precipitation Processes and Water cycle system

Aerosol

Water Vapor

Cloud Formation

Precipitation

EarthCARE GCOM-C GCOM-W

GPM

Profiles of cloud and aerosol

Evaluation of flux profile

Cloud/Aerosol interaction

Horizontal distribution of cloud and aerosol

Horizontal distribution of column water vapor, precipitation

3-DPrecipitation

Global mapping satellites

EarthCARE activities in JAPAN

• Cloud Profiling RADAR development contribution to EarthCARE satellite

• Japanese Ground Segment contribution including CPR Level 1 and other products processing to EarthCARE Ground Segment

• Scientific activities contribution including mission definition and algorithm study to entire EarthCARE mission

• Japanese activities are shared or cooperated between JAXA and NICT as a joint development effort

EarthCARE/CPR

CPR activities

JAXANICT

Scienceactivities

JAXANICT

Ground Segactivities

JAXA

JAXA; Japanese Aerospace Exploration AgencyNICT; National Institute of Information and Communications Technology

Cloud Profiling Radar (CPR) activity

• JAXA and NICT are jointly developing CPR– Interfacing with EarthCARE satellite– Radar performance design (NICT)– CPR System Design and Development (JAXA)

• Transmitter and Receiver Subsystem design and development (NICT)

• Main reflector, telemetry/command-radar control (JAXA)• JAXA/NICT jointed ESA-System Requirement Review (SRR)• Subsystem level Preliminary Design Reviews (PDR) were done• CPR system PDR will be held in next July, and start integration

of CPR Engineering Model.

CPR

ATLID

MSI

BBR

EarthCARE / Cloud Profiling Radar

Cloud Profiling RADAR(CPR)Joint Development of JAXA/NICT

ESA Earth Explorer Core Mission

-10 ~ +10 m/sDoppler range*

< 0.015 degreePointing accuracy

Variable; 6100~7500 Hz Pulse repetition frequency

< 1 m/sDoppler accuracy*

Pulse Pair MethodDoppler measurement

< 2.7 dBRadiometric accuracy*

-35 ~ +21 dBZ Sensitivity*

500 m (100 m sample); Vertical,500m integration; Horizontal

Resolution

-0.5 ~ 20 kmHeight range

> 1.5 kW (Klystron spec.)Transmit power

CircularPolarization

0.095 degBeam width

3.3 micro second (equivalent to 500m vertical resolution)

Pulse width

94.05 GHzCenter frequency

94 GHz Doppler RadarRadar type

*; at 10 km integration and 387 km orbit height

BBM activities for Cloud Profiling RADAR design

I/Q DetectorLow Noise Amp

Extended Interaction Klystron (EIK)Electronic Power Conditioner for EIK

Full size (2.5m dia.) CPR Antenna BBMwith high surface accuracy

New Large Near Field Measurement System of JAXA

Ground Segment activity

• Japanese Ground Segment scopes are;– Process CPR Level 1 and higher products– Data storage and management for all EarthCARE Level 1

and 2 data as a Ground Segment in Japan (Main GS; ESA)– Distribution of the EarthCARE products for users and

communities of JAXA– CPR operation planning– Maintain CPR performance and adoption of cal/val result

• Currently joining ESA-Ground Segment System Requirement Review

• System Definition Review of Japanese Ground Segment will be done towards the end of this year.

Japanese Ground Segment System Overview

Science activities

• JAXA/NICT organized Japanese Mission Advisory Group and Science TeamJapanese Mission Advisory Group; led by Prof. Fujiyoshi, Hokkaido University.Science Team; led by Prof. Nakajima, University of Tokyo.

• Science Team joins Joint Mission Advisory Group which is cooperation activity with European and Canadian scientists. AlsoNASA is joining as observer.

• Science Team is working as a core team for algorithm development and EarthCARE science in Japan

• First algorithm development activities will be done around the end of 2010.

Science activities ( algorithm studies )

H. Okamoto/Y. Ohno

N. Sugimoto

TY. Nakajima

H. Okamoto

H. Iwabuchi

Y. Takayabu

M. SatohK. Okamoto

Japanese scientists have been all assigned as a science team

Project schedule

• CPR is going to start its Phase C/D after the completion of its PDR in July.• CPR will ship its flight model to ESA for satellite integration by 2012• EarthCARE satellite is expected to launch in 2013

PDR ▽

EM manufacture

CDR ▽

PFM Manufacture

PFM delivery ▽

means advanced activity

EM

PFM

Present

Phase-B Phase-C/D Phase-E