1. GIFTS - The Precursor Geostationary Satellite Component of a Future Earth Observing System GIFTS - The Precursor Geostationary Satellite Component of a Future Earth Observing System W. Smith 1, H. Revercomb 2, G. Bingham 3, F. Harrison 1, P. Regeon 4, R. Petersen 5, and J. Dodge 1 1 NASA, 2 UW, 3 USU,4 Navy, 5 NOAA ; An Earth Science Vision: Technology Pathways And Challenges For 2025 2002 IEEE International Geoscience and Remote Sensing Symposium (23-28 June, Toronto CA)

2. A 20/20 Vision (Weather in Our Palm) By the year 2020, mankind will have the technology (observations and models) to digitize the earth’s surface and its atmosphere with a resolution of 1 km and 1 minute And Every individual on earth will have personal and timely access to weather observations and accurate weather forecasts through a “palm” computer/display unit. Every individual on earth will have personal and timely access to weather observations and accurate weather forecasts through a “palm” computer/display unit.

3. Vision Requirements Global continuous earth observing system Computer system capable of continuous real-time 4-d assimilation of global data to create a “Digital Earth” Accurate model of the Earth system Global real-time data/information delivery system Personal (i.e., hand held) data access and display system Sensor/Communications/Computational Web

4. ESE Vision Sensor Web Low Earth Orbiting: Global coverage High spatial resolution Microwave sounding GPS density profiles LIDAR for winds, H 2 O, O 3, CO 2 Geostationary Earth Orbiting: High temporal resolution (weather dynamics) Tracer wind velocities Synergism with ground-based observations Lightning and microwave precipitation

5. 4-d Digital Camera: Horizontal: Horizontal: Large area format Focal Plane detector Arrays Vertical: Vertical: Fourier Transform Spectrometer Time: Time: Geostationary Satellite New Technology for Atmospheric Temperature, Moisture, & Winds EO-3 “GIFTS-IOMI” GIFTS GIFTS – A revolutionary weather forecast tool Geostationary Imaging Fourier Transform Spectrometer GIFTS – A revolutionary weather forecast tool

6. GIFTS Sampling Characteristics Two 128x 128 Infrared focal plane detector arrays with 4 km footprint size Two 512 x 512 Visible focal plane detector arrays with 1 km footprint size Field of Regard 512 km x 512 km at satellite sub- point Ten second full spectral resolution integration time per Field of Regard

7. Shortwave IR Focal Plane : (4.4 to 6.1 microns) Water vapor sounding Carbon Monoxide profiling Boundary layer temperature sounding Surface temperature Cloud Properties GIFTS IR Measurements Wavenumber(cm -1 ) Wavelength (  m) Wavenumber(cm -1 ) Wavelength (  m) Longwave IR Focal Plane: ( 8.8 to 14.6 microns) Temperature sounding Ozone profiling Cloud altitude Surface temperature Cloud Properties

8. GIFTS – Water Vapor Airborne Validation Altitude (km) Relative Humidity (%) Distance (75 km) 3km Airborne Demonstration of Concept: 1-2 km vertical resolution water vapor profile measurements NAST Raob Wavenumber(cm -1 ) H 2 O Radiance Spectrum Wavelength (  m)

9. Water Vapor Flux (3 x 3 GIFTS Cubes)

10. Roadmap to Next Generation Studies Laboratory Demonstration Future Geo-Sats Aircraft Water Vapor Tracer Wind Demonstration EO-3 (GIFTS-IOMI)

11. GIFTS-IOMI Program Concept Imaging Interferometer Cryogenic Michelson Interferometer Laser Metrology System On-Board Calibration LFPA and Cryogenic Cooling 128 x 128 Infrared Detector Arrays Redundant Cryo-Coolers High Speed Signal Processing Rad-Hard Analog to Digital Converters PowerPC Rad750 Data Compression Rad-Hard Processors Pointing and Control Star Tracker 512 x 512 Visible Detector Arrays Lightweight Optics SiC Telescope TECHNOLOGY VALIDATION Indian Ocean Ops NASA - Demonstrate Wind Sounding Measurement Concept & Validate the Technologies NOAA - Demonstrate Operational Utility & Infuses Technology into NOAA instruments Navy - Provides Advanced Imaging/Sounding Data Products for Fleet Operations INFUSION

12. GIFTS Fills Geostationary Data Void GIFTS-IOMI (India) 83 E (USA) 75º E

13. GIFTS – The Geostationary Component GIFTS CALIPSO Aqua CloudSat PARASOL Aura NPP/NPOESS

14. The Significance of GIFTS Observation Capability Will Revolutionize Weather & Air Quality Forecasting Air Quality Forecasting Hurricane landfall (steering wind profiles) Tornadic storms (stability change monitoring) Nowcasting (rapid measurement update) Numerical prediction (initial p,T,q,V data) Air quality forecasts (O 3 and CO transport)