noaa satellite & information service · goes poes jpss. 2 n a t i o n a l o c e a n i c a n d a...
TRANSCRIPT
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Transition from Research to Operation
for GNSS Radio Occultation
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Abigail D. HarperNational Environmental Satellite, Data, and
Information Service (NESDIS)Deputy Assistant Administrator, Systems
April 13, 2011
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
NOAA Satellite & Information Service(NESDIS)
• Mission: To provide timely access to global environmental data and information services from satellites and other sources in support of the larger NOAA mission.
• Major Programs…– Geostationary Operational Environmental Satellite
(GOES)
– Polar-orbiting Operational Environmental Satellite (POES)
– Joint Polar Satellite System (JPSS)
– Environmental Satellite Observing Services
– Environmental Data Management
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GOES
POES
JPSS
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
NOAA Satellite and Information Service
An End-to-End Responsibility
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Requirements & Planning
System Acquisition
Launch
Command & Control
Real-Time Product Development &
Distribution
Data Archive & Access
Products & Services
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
NOAA Data and Information are Essential for…
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Hazards, Severe Weather, Watches, Warnings
Climate
Agriculture
Environmental Monitoring
Commerce
Defense
Transportation
Industry
Ocean
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
GNSS Radio Occultations
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Temperature, moisture profiles in the
neutral atmosphere
Space weather - electron density profiles
COSMIC/FORMOST-3 – the first Radio Occultation Constellation that demonstrates the value of GPSRO in weather, climate and space weather
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
GNSS ROApplication Area Examples
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Storms / Severe WeatherNWP
Climate Space Weather
• expx (NO COSMIC)• cnt (operations – with COSMIC)• exp (updated RO assimilation
code - with COSMIC)
GNSS RO can measure:
• ENSO Signal(El Niño - Southern Oscillation –
dominant tropospheric variability)
• Global QBO(Quasi-Biennial Oscillation -
dominant signal in stratosphere)
From Bill Randel [UCAR]
COSMIC Demonstration
Hurricane Lili
Track Error Improvement
3-D Maps Global Electron DistributionFrom Electron Density Profiles Updated@ Few Minutes Combined Tomographically [from A. Mannucci, 2009]
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Six (6) COSMIC GPS RO SatellitesSignificant Impact on Weather Service Forecast Skill
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• Proven significant forecast accuracy
improvement
• 40-day experiments:
– Black line - No COSMIC
– Red line - COSMIC Initial Operations
– Green line - Current COSMIC
-COSMIC provides significant improvement in Weather forecast skill
8 hours improvement at Forecast Day 4 and
>15 hours improvement during Forecast Day 7
- Particularly significant improvement over the oceans and in Southern Hemisphere
- Analysis – COSMIC satellite loss causes significant NOAA forecast skill loss
Distance between
Arrows - 8 hour Weather
Forecast Improvement
Cucurull 2009 [NOAA/NESDIS]Daily - COSMIC vs Radiosondes
• expx (NO COSMIC)
• cnt (operations – with COSMIC)
• exp (updated RO assimilation
code - with COSMIC)
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
OPAC
2010
NCAR 4-Day Ernesto (2006)
Forecasts
NCAR 4-Day Ernesto (2006)
Forecasts
Y.-H. Kuo (NCAR), 2007
Forecast with GPSForecast with GPS Forecast without GPSForecast without GPSThe Actual StormThe Actual Storm
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Impact of Various Observing SystemsGEOS-5.6.1 28 Jan – 05 March 2010 00z
FORMOSAT-3 Ranked #3 inImpact Per
Observation
Adjoint-based estimate of 24-hr global forecast error reduction in wind,
temperature and surface pressure combined as energy (J/kg)
From Ron Gelaro, NASA, GMAO
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
FORMOSAT-7/COSMIC-2 GNSS RONotional Architecture [USA-Taiwan]
FiducialNetwork
US DPC
TT&C stations (overseas)
TT&C stations (Taiwan)
Satellite Operations
and Control CenterUsers Researchers
FORMOSAT-7/
COSMIC-2
High-inc
Low-inc
Taiwan DPC
GPSGALILEO GLONASS
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O NN A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
Pre-Decisional – Not for Public Release
FORMOSAT-3/COSMIC vs FORMOSAT-7/COSMIC-2
3 hrs Coverage
COSMIC Occultations–3 Hrs Coverage
12 Satellites - 2 inclinations
Data are distributed
more homogeneously Courtesy of UCAR
COSMIC-2 Occultations – 3 Hrs Coverage
N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
The Future of GNSS RO
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05 06 07 08 09 11 12 13 14 15 16 17 18 19 20 21 22 23 24 2510
CALENDAR YEAR26 27 28 29 30 32 33 34 35 36 37 38 39 4031
GPS
GLONASS
Galileo
FOC 24-30 MEO S/C
FOC
FOC = Full Operational Capability
FOC 28-30 MEO S/C
FOC
FOC
FOC
FOC 27-30 MEO S/C
FOC 27 MEO, 5 GEO, 3 iGSO S/C
IOC
COMPASS
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N A T I O N A L O C E A N I C A N D A T M O S P H E R I C A D M I N I S T R A T I O N
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Happy 5th Anniversary
FORMOSAT-3/COSMIC!
NOAA is proud to be your
partner!