GMS Geo Microwave Sounder

1

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

2

OutlineOutline

• Introduction

• Microwave Band

• AMSU Examples

• GOES R Applications

• Promising Technology

3

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

4

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

5

Microwave BandMicrowave Band

6

AMSU ChannelsAMSU Channels

7

Hurricane ErinHurricane Erin

8

Hurricane ErinHurricane Erin

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

9

Hurricane ErinHurricane Erin

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

10

Hurricane ErinHurricane Erin

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

11

Hurricane ErinHurricane Erin

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

12

Hurricane ErinHurricane Erin

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

13

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

14

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

15

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

16

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

17

GeoSTAR ResolutionGeoSTAR Resolution

Frequency Resolution

54 GHz 50 km

89 GHz 25 km

183 GHz 50 km

18

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!

19

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