MODIS Science Team 2006, PJW, NASA OBPG

SeaBASS status report

MODIS Science Team meeting4 - 6 Jan 2006

Baltimore, Maryland

Jeremy WerdellNASA Ocean Biology Processing Group & SSAI

MODIS Science Team 2006, PJW, NASA OBPG

a busy year …• the NASA bio-Optical Marine Algorithm Data set (NOMAD) released

and, a not so busy year …• rate of data submission still in decline• no major updates to the archive, database, search engines, or validation software

MODIS Science Team 2006, PJW, NASA OBPG

NOMAD

SeaBASS remains the NASA archive for in situ bio-optical dataNOMAD is a standalone product developed using the data archived in SeaBASS

data post-processed to remote-sensing relevant (~ surface) valuesrelease 1 includes 3,467 coincident observations of Rrs() and Ca, plus dates and locationsalso includes T, S, Kd(), bb (), ad (), ag (), and a (), when available

a()’s from spectroscopy only

full data set with search engine publicly available via:• http://seabass.gsfc.nasa.gov/cgi-bin/nomad.cgi

data preparation described in: • Werdell, P.J. and S.W. Bailey, 2005, Remote Sensing of Environment, 98, 122-140• http://seabass.gsfc.nasa.gov/data/werdell_nomad_iop_qc.pdf

featured in the Ocean Color Bio-optical Algorithm Mini-workshop (OCBAM)conducted at the University of New Hampshire, Sep 2005

MODIS Science Team 2006, PJW, NASA OBPG

data submission to SeaBASS

MODIS Science Team 2006, PJW, NASA OBPG

impact on algorithm development

MODIS Science Team 2006, PJW, NASA OBPG

impact on algorithm development

MODIS Science Team 2006, PJW, NASA OBPG

impact on algorithm development

MODIS Science Team 2006, PJW, NASA OBPG

impact on satellite validation

MODIS Science Team 2006, PJW, NASA OBPG

impact on satellite validation

MODIS Science Team 2006, PJW, NASA OBPG

impact on satellite validation

MODIS Science Team 2006, PJW, NASA OBPG

contacts

email: seabass@seabass.gsfc.nasa.gov

Web: http://seabass.gsfc.nasa.govsearch engines:http://seabass.gsfc.nasa.gov/dataordering.htmlNOMAD: http://seabass.gsfc.nasa.gov/cgi-bin/nomad.cgivalidation: http://seabass.gsfc.nasa.gov/matchup_results.html

OBPG: http://oceancolor.gsfc.nasa.gov

MODIS Science Team 2006, PJW, NASA OBPG

backup

MODIS Science Team 2006, PJW, NASA OBPG

data access policy

reviewed and accepted at the 2004 MODIS Science Team meeting

• full access limited to NASA OCRT members and voluntary data contributors• voluntary contributor status reviewed annually

• data released publicly on 3-year collection anniversary• contributors may opt to release data early

• contributors extended authorship rights until 3-year collection anniversary• users asked to acknowledge contributors, SeaBASS, and NASA

MODIS Science Team 2006, PJW, NASA OBPG

validation results

MODIS Science Team 2006, PJW, NASA OBPG

algorithm development

MODIS Science Team 2006, PJW, NASA OBPG

NOMAD geophysical distribution

MODIS Science Team 2006, PJW, NASA OBPG

SeaBASS data: a review and a look into the future

MODIS Science Team meeting4 - 6 Jan 2006

Baltimore, Maryland

Giulietta Fargion

MODIS Science Team 2006, PJW, NASA OBPG

46 PIs are collecting in situ data with NASA funding

Number of Coastal Offshore Grants

• Carbon Cycle Science (NRA-04-OES-01)and Carbon 00 11 5 6

• Interdisciplinary Science (NRA-03-OES-03)8 6 2• Terra, Aqua, & ACRIM (NRA-03-OES-02) 13 7 6• ECOHAB-03 2 2• Ocean, Ice & Climate (NRA-01-OES-03);

Ocean & Ice 04; Oceanography 00 10 5 5• Other 2 1 1

Total 46 26 20

MODIS Science Team 2006, PJW, NASA OBPG

Geographical areas• Coastal US: 16 field studies

– Gulf of Mexico, Chesapeake Bay, Florida, Oregon coast, Central California, Gulf of Maine, South Atlantic Bight, Pamlico Sound (NC), Massachusetts shelf, Delaware coast, etc.

• Coastal Global: 9 field studies– Venezuela, Chile, Peru, Baja California, Congo River, Adriatic Sea, Ligurian Sea,

Patagonia shelf, Brazil shelf

• Open Ocean: 18 field studies– North, Equatorial and Southern Atlantic Ocean, Equatorial & Southern Pacific

Ocean, East Mediterranean

• High Latitude: 2 field studies

MODIS Science Team 2006, PJW, NASA OBPG

What we have in SeaBaSS

Radiometry Phytoplankton pigment

Type Percentage Type PercentageIn-water 53.3 Discrete HPLC 13.3

Above-water 46.7 Discrete fluorometry 27.0

Profile fluoromery 14.3

Flow-through fluor. 45.4

Total observations 15,400 Total observations 32,094

Table from “Werdell & Bailey, Remote sensing of the Env.,98 (2005)122-140.”

MODIS Science Team 2006, PJW, NASA OBPG

NOMAD: coastal data

MODIS Science Team 2006, PJW, NASA OBPG

Road Map for “next generation”• Inventory of the oceanic parameter measured & data submission (AOPs,

IOPs, HPLC, etc.);• Revision of the “required” and “highly desired” in situ observations for

ocean color system validation, and algorithm validation through an open community participation;

• Future parameters for the SeaBASS/NOMAD could be:– Carbon data set measurements (dissolved inorganic carbon, dissolved

organic matter, particulate organic matter, calcite, alkalinity, T, S, nutrients, O2, and related tracers such as CFC’s, 14C, etc.)

– Primary Production (PP)– Sea Surface Temperature (SST)– Other

• Protocol development

MODIS Science Team 2006, PJW, NASA OBPG

NASA policy requires data submission to SeaBASS

• Submission: Ocean color algorithm development and new products are essentially observation limited, and rapid turnaround and access to such data are crucial for progress.

• Formats and Metadata: Data should be provided in the currently agreed-upon format, along with relevant information describing collection conditions, instrument specifications, instrument performance and calibration, and statements of data accuracy. The currently used data format specifications and examples are posted on the SeaBASS Web site. The provider should use FCHECK, which is an automated format checker program, to test the format validity of SeaBASS data files via return e-mail.

• Use Conditions: Prior to the three-year data collection anniversary, users of data will be required to provide proper credit and acknowledgment of the provider. A citation should also be made of the data archive. Users of data are encouraged to discuss relevant findings with the provider early in the research.

More at http://seabass.gsfc.nasa.gov/