Operational Transition of MODIS Experimental Winds to NOAA/NESDIS

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Operational Transition of MODIS Experimental
Winds to NOAA/NESDIS

• Jaime Daniels
• NESDIS/Office of Research
• and Applications
• Camp Springs, Maryland
• Wayne Bresky
• Raytheon Information Technology
• and Scientific Services
• Lanham, Maryland
• Antonio Irving
• NESDIS/Office of Satellite Data
• Processing Distribution
• Camp Springs, Maryland

TERRA IR CLOUD DRIFT
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Topics

• Goals of the transition process
• Current status accomplishments to date
• Plans for the transitioning MODIS wind capability
  into NESDIS operations

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Goals of the Transition Process

• Move the responsibility for production and
  distribution of the MODIS wind products from
  CIMSS to the NESDIS operational environment
• Actively engage and coordinate with the user
  community with respect to their use of the MODIS
  wind products
• Get the MODIS wind products into the hands of the
  users
• In as timely a manner as possible
• In the format needed
• Via newly established distribution pathways

Take advantage of this workshop to i) Highlight
MODIS wind products ii) Interact with current
and potential new users of these and iii) Walk
away with new/additional requirements for these
products which will help me move transition
along.
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Current Status Accomplishments to Date

• MODIS winds capability has been successfully
  transferred from CIMSS to NESDIS/ORA
• After some effort, both groups produce the same
  product when using same inputs
• CIMSS (C-version)
• NESDIS/ORA (Fortran-version)
• With software baseline established, we can move
  forward

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Current Status Accomplishments to Date

• NESDIS/ORA initiates routine experimental
  production of MODIS wind products at the NOAA
  Science Center
• Terra IR CD WV winds over the Arctic (July
  2003)
• Just recently ( 9/15) we began routine
  production of Terra IR CD WV winds over the
  Antarctic Aqua IR CD WV winds over the Arctic
  Antarctic
• MODIS imagery made available on CIMSS server
• Forecasts from NCEPs Global Forecast System
  (GFS) NWP model used in the processing
• CIMSS is using forecasts from US Navys NOGAPS
  NWP model
• During CIMSS ORA testing we found some rather
  significant differences between the two model
  wind fields, which in turn, resulted in
  differences in our respective MODIS wind fields.

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(NOGAPS)
(GFS)
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Considerations in the Tracer Tracking Step
Model wind forecast defines this vector which
determines where to position the search scene
Match
Target scene
Search Scene
Time t0
Time t0
t

• Model wind field is used to help guide where we
  locate the search box
• The range of possible displacements is the
  difference in size between
• the tracking area the search area (ie., lag
  size). This displacement is
• also f(image pixel resolution time interval
  between images). The ratio
• on the right indicates the degree of model
  dependency
• (u-uguess) (v-vguess) lt (L-2) X / 2T
  (Xpixel res Timage time interval)
• X T L RATIO
• GOES 4km 30min 21 21 m/s (u v must be within
  21m/s of guess)
• MODIS 2km 90min 35 6 m/s (u v must be
  within 6 m/s of guess)

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• MODIS wind examples
• Time series of difference stats
• Terra IR CD vs. raob vs. GFS analysis
• Terra WV vs. raob vs. GFS analysis

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TERRA IR CLOUD DRIFT
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One Day of Arctic Orbits
MODIS band 27 (6.7 mm)
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TERRA WATER VAPOR
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Terra IR Cloud-Drift vs. Radiosonde 8/19/2003
10/2/2003
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Terra Water Vapor Motion Winds vs.
Radiosonde 8/19/2003 10/2/2003
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Terra IR Cloud-Drift vs. GFS
Analysis 8/19/2003 10/2/2003
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Terra Water Vapor Motion Winds vs. GFS
Analysis 8/19/2003 10/2/2003
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Plan for Transitioning MODIS Wind Product
Application to Operations

• Operational readiness is dependent on
• Completion of dedicated communications
  infrastructure between NASA Goddard and the NOAA
  Science Center (Nov. 2003)
• Will allow the timely transfer of near real-time
  MODIS data
• Operational H/W procurement to store and serve up
  MODIS imagery front-end ingest software to
  prepare MODIS imagery for input to MODIS wind
  application ( June 2004)

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Near Real Time MODIS Data Flow Diagram (23
July 2002) -- NOAA
GB NGI (DEC 02)

Building 32 GSFC Gene Legg NOAA/OSDPD
NOAA Science Center

FB4 (NOAA)
Ocean Fire Snow Ice Land Winds
100 Mbs (FDDI)
10Mbs (FNS NOV 01)
NOAA Facility L1B L2
MOD03 Processors
SGI
100 Mbs (FDDI)
Satellite Active Archive Alex Kidd NOAA/NESDIS
OSDPD NOAA Ocean Products
Servers
Shared Processing DoD

• Building 32 GSFC
• NRT Processing of MODIS 5 Granules
• Level 1B and L2 product generation
• MOD03 Geo location file generation
• Capacity to process global Aqua
• Terra MODIS data

Product Generation Distribution

• NOAA Science Center
• Level 3 product generation
• At present, limited to N. America coverage
• Ocean Color OCL2A/B, and MOD28 currently
  available
• Requests for level 1B and expanded coverage are
  being evaluated

Stennis S C NRL, NAVO
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In the Interim

• MODIS wind application software is in the process
  of being transferred from NESDIS/ORA to
  NESDIS/OSDPD (operations)
• Terra and Aqua IR CD WV winds over Arctic
  Antarctic will be produced in a routine,
  experimental mode using MODIS imagery from the
  CIMSS server
• NCEP GFS model forecasts will be used
• Product will be placed into BUFR (same template
  as used for GOES winds) and made available on a
  anonymous ftp server

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In the Interim (contd)

• NESDIS ORA OSDPD will work with all potential
  users to get them access to the MODIS wind
  datasets (BUFR, etc)
• Internal to NOAA we will
• Work with NOAA/NCEP to get these BUFR products
  into the NCEP database which will facilitate
  impact tests by the Joint Center for Satellite
  Data Assimilation (JCSDA)
• Work with NOAA/NWS to get the MODIS wind products
  into selected NWS WFOs who request them (in
  digital form)
• NESDIS ORA will continue to work closely with
  CIMSS to incorporate updated science algorithm
  and/or processing methodologies

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