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GIFTS - The Precursor Geostationary Satellite Component of a GIFTS - The Precursor Geostationary Satellite Component of a Future Earth Observing SystemFuture Earth Observing System
W. Smith1, H. Revercomb2, G. Bingham3, F. Harrison1, P. Regeon4, R. Petersen5, and J. Dodge1
1NASA, 2UW, 3USU,4 Navy, 5NOAA; An Earth Science Vision: Technology Pathways And Challenges For 20252002 IEEE International Geoscience and Remote Sensing Symposium (23-28 June, Toronto CA)
A 20/20 Vision (Weather in Our Palm)A 20/20 Vision (Weather in Our Palm)
By the year 2020, mankind will have the By the year 2020, mankind will have the technology (observations and models) to technology (observations and models) to
digitize the earth’s surface and its atmosphere digitize the earth’s surface and its atmosphere with a resolution of 1 km and 1 minute with a resolution of 1 km and 1 minute
AndAnd
Every individual on earth will have personal Every individual on earth will have personal and timely access to weather observations and and timely access to weather observations and accurate weather forecasts through a “palm” accurate weather forecasts through a “palm”
computer/display unitcomputer/display unit. .
Vision RequirementsVision 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 WebSensor/Communications/Computational Web
ESE Vision Sensor WebESE Vision Sensor Web
Low Earth Orbiting:Low Earth Orbiting:• Global coverage• High spatial resolution• Microwave sounding • GPS density profiles • LIDAR for winds, H2O, O3, CO2 Geostationary Earth Orbiting:Geostationary Earth Orbiting:• High temporal resolution (weather dynamics)• Tracer wind velocities• Synergism with ground-based observations • Lightning and microwave precipitation
4-d Digital Camera: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”
GGeostationary IImaging FFourier TTransform SSpectrometer GIFTS GIFTS – – A revolutionary weather forecast toolA revolutionary weather forecast tool
GIFTS Sampling CharacteristicsGIFTS 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
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 MeasurementsGIFTS 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
GIFTS – Water Vapor Airborne ValidationGIFTS – Water Vapor Airborne Validation
Alt
itu
de
(km
)
Relative H
um
idity (%
)
Distance (75 km)
3km
Airborne Demonstration of Concept: 1-2 km vertical resolution water vapor profile measurements
NASTRaob
Wavenumber(cm-1)
H2O Radiance SpectrumWavelength (m)
Water Vapor Flux (3 x 3 GIFTS Cubes)Water Vapor Flux (3 x 3 GIFTS Cubes)
Roadmap to Next GenerationRoadmap to Next Generation
Studies Laboratory Demonstration
Future Geo-Sats
Aircraft
Water Vapor Tracer Wind Demonstration
EO-3 (GIFTS-IOMI)
GIFTS-IOMI Program ConceptGIFTS-IOMI Program Concept
Imaging InterferometerCryogenic Michelson Interferometer
Laser Metrology System
On-Board Calibration
LFPA and Cryogenic Cooling128 x 128 Infrared Detector Arrays
Redundant Cryo-Coolers
High Speed Signal ProcessingRad-Hard Analog to Digital Converters
PowerPC Rad750
Data Compression Rad-Hard Processors
Pointing and ControlStar 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
GIFTS Fills Geostationary Data VoidGIFTS Fills Geostationary Data Void
GIFTS-IOMI
(India)83 E
(USA) 75º E
GIFTS – The Geostationary ComponentGIFTS – The Geostationary Component
GIFTSGIFTS
CALIPSO
Aqua
CloudSat
PARASOL
Aura
NPP/NPOESS
The Significance of GIFTSThe Significance of GIFTS
Observation Capability Will Observation Capability Will Revolutionize Weather &Revolutionize Weather & Air Quality ForecastingAir 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 (O3 and CO transport)