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GMSGMS

Geo Microwave SounderGeo Microwave Sounder

GMSGMS

Geo Microwave SounderGeo Microwave Sounder

Michael MaddenMichael Madden

GOES R Program OfficeGOES R Program Office

NOAA/NESDIS/OSD/RPSINOAA/NESDIS/OSD/RPSI

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OutlineOutline

• Introduction

• Microwave Band

• AMSU Examples

• GOES R Applications

• Promising Technology

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Geo MicrowaveGeo Microwave

• Passive Sounder identified as GOES R P3I• Compliments HES• Provides high resolution spatial coverage• Scheduled post 2015 launch• NOAA/NASA following promising technologies• Hosted on A, B, or C satellite

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IntroductionIntroduction

• Passive Microwave Sounder– Based on AMSU experience– Single and dual band algorithms– ATMS already flying on NPOESS– Increases utility of IR sounders– Previously Identified as a need at GUC II

• NOAA Requirements– Hemispheric Coverage– Hourly Updates– Temperature/Moisture/Precipitation

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Microwave BandMicrowave Band

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AMSU ChannelsAMSU Channels

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Hurricane ErinHurricane Erin

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Hurricane ErinHurricane Erin

AMSU 5 (53.6 GHz)AMSU 5 (53.6 GHz)

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Hurricane ErinHurricane Erin

AMSU 6 (54.5 GHz)AMSU 6 (54.5 GHz)

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Hurricane ErinHurricane Erin

AMSU 7 (54.9 GHz)AMSU 7 (54.9 GHz)

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Hurricane ErinHurricane Erin

AMSU 8 (55.5 GHz)AMSU 8 (55.5 GHz)

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Hurricane ErinHurricane Erin

AMSU 16 (89 AMSU 16 (89 GHz)GHz)

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GEM ConceptsGEM Concepts

GEM GeoSTAR

Approach Solid dish Sparse aperture

Mass 70 kg* 100 kg*

Power 150 Watts 250 Watts

Electronics 50 x 60 x 40 cm* 50 x 60 x 40 cm*

Antenna Size 200 cm dish 300 cm strip

Data Rate <0.5 Mbps <0.5 Mbps

*exact values are TBD*exact values are TBD

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GEostationary Microwave (GEM)GEostationary Microwave (GEM)

• Solid dish antenna design• NOAA/ETL and MIT design• 5 bands (54, 118, 183, 380 and 424 GHz)• 43 Channels• 2m solid dish antenna• 16 – 140 km resolution • CONUS in 90 minutes• 1500 x 1500 km in 15 minutes

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GEM ResolutionGEM Resolution

Frequency Resolution

54 GHz 116 km

118 GHz 56 km

183 GHz 36 km

380 GHz 18 km

424 GHz 16 km

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GeoSTARGeoSTAR

• Thinned aperture radiometer• NASA JPL design• 3 bands (54, 89 and 183 GHz)• 10 Channels• 25 – 50 km resolution • Sparse aperture, no moving parts• Full disk in 60 minutes• Similar technology on SMOS

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GeoSTAR ResolutionGeoSTAR Resolution

Frequency Resolution

54 GHz 50 km

89 GHz 25 km

183 GHz 50 km

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SummarySummary

• Passive microwave sounder identified as P3I• Technology continuing, currently PDR• Provide moisture, temperature, precipitation• Cloud clearing for HES• Based on AMSU/ATMS bands• NOAA/NASA following promising technologies

– GEM– GeoSTAR

• First Launch planned for 2015• Stay Tuned!

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AcknowledgementsAcknowledgements

• AMSU Imagery courtesy of UW/CIMSS• GEM information courtesy of Al Gasiewski,

NOAA/ETL• GeoSTAR information courtesy of Bjorn

Lambrigtsen, NASA/JPL• Microwave information courtesy of Shyam Bajpai,

NOAA/NESDIS