Transcript Satellite Oceanography At NODC

- SST and Ocean Color A NOAA Perspective
Kenneth S. Casey
NOAA National Oceanographic Data Center
USA
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Nov 20-22, 2007: Oslo, Norway
With special thanks to…
Marcia Weaks
NOAA IOOS Program Office
Paul DiGiacomo
NOAA/NESDIS Satellite Applications and Research
Linda Stathoplos
NOAA/NESDIS Office of Satellite Data Production and
Distribution
The views expressed herein are those of the
speaker’s alone and should not be considered
official NOAA or US Government policy.
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Nov 20-22, 2007: Oslo, Norway
Overview
NOAA is…
NOAA and
GHRSST
NOAA and
Ocean Color
NOAA IOOS
Reflections
and Future
Directions
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Nov 20-22, 2007: Oslo, Norway
NOAA is many things..
Research
Operations
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Applications
Data Stewardship
Nov 20-22, 2007: Oslo, Norway
NOAA is many things..
Research
Operations
Applications
Data Stewardship
Often there is no
over-arching plan
coordinating the
related activities
across different
offices
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Despite the problems
with this approach,
there is a certain
strength in the
diversity
Nov 20-22, 2007: Oslo, Norway
Strength in Diversity
In both SST and Ocean Color, NOAA’s
activities have evolved “organically”
NOAA groups - regardless of their office face similar obstacles
- Limited funding
- Data availability
And they share similar goals
- To get data into their users’ hands
- To see their products used to societal benefit
So there is a (growing) tendency for grassroots coordination
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Nov 20-22, 2007: Oslo, Norway
NOAA Satellite SST Activities
Research
-
ESRL
STAR
NODC
NCDC
Operations
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STAR
OSDPD
NCDC
CLASS
Applications
- STAR
- NODC
Data Stewardship
-
NODC
CLASS
NCDC
SWFSC
PMEL
And there are even
more!!
Nov 20-22, 2007: Oslo, Norway
NOAA Satellite SST Activities
Organically grown, but increasingly linked
through GHRSST
For example:
- STAR-developed GOES algorithms, implemented
operationally at OSDPD in GHRSST format, and
archived at NODC’s GHRSST Long Term
Stewardship and Reanalysis Facility
- NCDC-developed Daily OI L4 products use NODC’s
Pathfinder data and are archived at NODC
- Those products are then served by PMEL through a
Live Access Server to PRIDE community
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Nov 20-22, 2007: Oslo, Norway
NOAA SST Future Directions
Preparations underway for VIIRS on NPP
and NPOESS
STAR and NOAA NPOESS Data Exploitation
team considering making our own GHRSST
SSTs and/or converting NPOESS IPOprovided data to GHRSST format
Commitments to GHRSST at “grass roots”
level remain, and are growing stronger
IOOS involvement unclear at moment, but at
least will be a major “user” (more later)
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Nov 20-22, 2007: Oslo, Norway
NOAA SST Future Directions
NODC will continue as the GHRSST LTSRF
NODC is developing AVHRR Pathfinder
capability and will provide both “V6” in
GHRSST L2P and L3 formats
OSDPD will continue GOES L2P
OSDPD will create MTSAT L2P (May 2008)
OSDPD and STAR may create other
GHRSST formatted data (e.g., MetOp
AVHRR, POES-GOES blended L4, VIIRS,
etc.)
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Nov 20-22, 2007: Oslo, Norway
NOAA and GHRSST
GHRSST Awareness is widespread in
NOAA’s SST community
Growing need for international partners is
broadly understood in NOAA
Through office-level efforts, NOAA is taking
its roles in GHRSST very seriously
We will continue to play in the international
arena… whether it is GCOS, or GOOS, or
JCOMM, or IOC, or …?
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Nov 20-22, 2007: Oslo, Norway
NOAA and GHRSST
The future looks bright for
NOAA and GHRSST!
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Nov 20-22, 2007: Oslo, Norway
NOAA and Ocean Color
Reliance on foreign sensors is VERY
clearly understood
- No current NOAA ocean color sensors
- Outlook for VIIRS is, well, ummmm, errr,
hmmm…
NOAA is increasingly active in ocean
color
- CoastWatch/OceanWatch and Okeanos
- MERIS operational processing
- MOBY and Cal/Val
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Nov 20-22, 2007: Oslo, Norway
CoastWatch
NOAA Ocean Color Data Processing System
(Okeanos1) for NRT SeaWiFS and MODIS data
- 40 MODIS granules per day for Atlantic, Pacific, and Caribbean
- 4 SeaWiFS Swath Data Files covering US East Coast, West
Coast and Gulf of Mexico (For Authorized NOAA users only)
Output products published via Web Server and ftp
data server
- CoastWatch Web server http://coastwatch.noaa.gov
- FTP server ftp://ftpoceanwatch.noaa.gov
1There
will be a poster on the NOAA operational Okeanos Ocean
Color Processing System at the 2008 Ocean Sciences Meeting in
Session #100 on operational oceanography.
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Nov 20-22, 2007: Oslo, Norway
CoastWatch
Products Details
- 1 km resolution nLw, chl_a, water
clarity (Rrs670,Rrs667, K490)
- mean and anomaly; daily and
multi-day composite; mapped and
projected
- CoastWatch HDF and image
formats (png, GeoTiff)
Applications of Products
-
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Harmful Algal Bloom Bulletins
Water quality assessments
Scientific Research
Coastal Resource & Habitat
Management
Nov 20-22, 2007: Oslo, Norway
MERIS at NOAA CoastWatch
An effort has begun to deliver MERIS reduced
resolution data products operationally by the end
of 2008, toward ensuring ocean color data
continuity for U.S. coastal waters
Daily download L2 data for one orbit; plans to
process 2-3 orbits daily for entire CONUS, Create
daily mapped Chlorophyll imagery for CoastWatch
regions
Plan to use 4-day composites to create anomaly
products for HABs. 4-day composites provide full
coverage of GOM and SE-USA Coastal regions.
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Nov 20-22, 2007: Oslo, Norway
MERIS at NOAA CoastWatch
An example of Automated trend tracking QA report
chlorophyll GM05
4-day composite
is required to
give adequate
coverage
100
mg m-3
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MERIS 60-day
1
MERIS-mean
(these
in agreement)
MERIS-stdev
0.1
SWR-mean
SWR-stdev
AQUA-stdev
AQUA-mean
MODIS Aqua
60-day
(these
0.01
207
217
in agreement)
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247
257
267
Julian day
Time series of the mean and standard deviation of the
CoastWatch Gulf of Mexico Region for MERIS, SeaWiFS
& MODIS-Aqua.
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Nov 20-22, 2007: Oslo, Norway
NOAA and MOBY
Marine Optical BuoY (MOBY) in Hawaii - A Vicarious
Calibration Facility
On-orbit vicarious calibration with high quality in
situ data is necessary for accurate satellite ocean
color products, as well as for providing required
Climate Quality ocean color products
Supported by NASA and NOAA, has been
measuring hyperspectral in situ water-leaving
radiance since 1997
NOAA has assumed responsibility for MOBY, and is
currently funding MOBY operations
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Nov 20-22, 2007: Oslo, Norway
NOAA and MOBY
MOBY data have significant contributions to
ocean science community:
- Only in situ data source used to vicariously calibrate
SeaWiFS and MODIS for providing global ocean
color products
- Contributed to assist in calibration and/or validation
activities for other ocean color sensors, e.g., MERIS
(ESA), OCTS (Japan), POLDER (France)
- Achieved more than ten years high quality in situ
ocean optics data for scientific research and
applications
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Nov 20-22, 2007: Oslo, Norway
NOAA and MOBY
MOBY data can also provide links between
products derived from various ocean color
sensors, and thus help data merging
Vicarious calibration facilities such as
MOBY (or more advanced instrument) are
required for the future ocean color sensors,
e.g., NPOESS/VIIRS
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Nov 20-22, 2007: Oslo, Norway
NOAA OC Future Directions
General interest in acquiring high-resolution, wellcharacterized ocean color data from non-U.S.
satellite sensors
Near-term interest in acquiring MERIS full
resolution & raw data (L1A) and associated sensor
characterization and calibration information
New & improved techniques for processing &
merging data from different sensors, including
detailed error characterization
Cal/val and data processing collaborations,
particularly toward production of climate quality
data records
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Nov 20-22, 2007: Oslo, Norway
IOOS/GOOS Connections
And now, for
something
completely
different…
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Nov 20-22, 2007: Oslo, Norway
U.S. Integrated Ocean
Observing System
Represents a major shift in approach to
ocean observing
Draws together the vast network of disparate,
federal and non-federal observing systems
Produces a cohesive suite of data,
information, and products at a sufficient
geographic and temporal scale to support
decision-making
IOOS is the US contribution to the Global
Ocean Observing System, which is the ocean
component of GEOSS
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Nov 20-22, 2007: Oslo, Norway
NOAA IOOS
US IOOS has been around for a number of
years, but has floundered - NOAA as lead
US agency must provide leadership
Enter 2007: NOAA creates its own IOOS
Program Office
NOAA IOOS hopes to provide that
leadership, through a rapid demonstration
of integrated datasets leading to societal
benefit - the “DIF” - Data Integration
Framework
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Nov 20-22, 2007: Oslo, Norway
Reflections on NOAA IOOS
NOAA’s IOOS Program is a bit like the
GMES Marine Core Services, but has some
fundamental differences
NOAA IOOS (and CoastWatch) would be
interested in something like a “coastal
GlobCOLOUR” (beware Tyranny of the “Or”)
NOAA IOOS has stated publicly that it
would like to “adopt GHRSST” for SSTs
There are reasons to be excited, but the
future is uncertain…
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Nov 20-22, 2007: Oslo, Norway
Closing Thoughts
NOAA and GHRSST
- life is good
NOAA and GlobCOLOUR?
-
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Hmmm….
Well….
Err….
A proposal: Draft a Submission Agreement
Nov 20-22, 2007: Oslo, Norway
Takk!
Questions?
[email protected]
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Nov 20-22, 2007: Oslo, Norway