The Ocean Color MEASURES Project

S. Maritorena1, J. Frew2, N.B. Nelson1, D.A. Siegel1,3, M. Behrenfeld4

1. Institute for Computational Earth System Science, University of California at Santa Barbara2. Bren School of Environmental Science & Management, University of California at Santa

Barbara3. Department of Geography, University of California at Santa Barbara4. Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon

OCRT Meeting - 4-6 May, 2009 - New York City, NY

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

NASA Earth Science Data Systems and MEaSUREs- linking together multiple satellites into a constellation- developing the means of utilizing a multitude of data sources to form coherent time series- facilitating the use of extensive data in the development of comprehensive Earth system models.

ROSES-2006 announcement: proposals were solicited to focus on the creation of Earth System Data Records (ESDRs), including Climate Data Records (CDRs).

ESDR: a unified and coherent set of observations of a given parameter of the Earth system, which is optimized to meet specific requirements in addressing science questions.

Critical to understanding Earth System processes, to assessing variability, long-term trends, and change in the Earth System, and to provide input and validation means to modeling efforts.

29 MEaSUREs projects focus on product generation, availability, and utility.

NASA Earth Science Data Systems and MEaSUREs- linking together multiple satellites into a constellation- developing the means of utilizing a multitude of data sources to form coherent time series- facilitating the use of extensive data in the development of comprehensive Earth system models.

ROSES-2006 announcement: proposals were solicited to focus on the creation of Earth System Data Records (ESDRs), including Climate Data Records (CDRs).

ESDR: a unified and coherent set of observations of a given parameter of the Earth system, which is optimized to meet specific requirements in addressing science questions.

Critical to understanding Earth System processes, to assessing variability, long-term trends, and change in the Earth System, and to provide input and validation means to modeling efforts.

NASA Earth Science Data Systems and MEaSUREs- linking together multiple satellites into a constellation- developing the means of utilizing a multitude of data sources to form coherent time series- facilitating the use of extensive data in the development of comprehensive Earth system models.

http://esdswg.eosdis.nasa.gov/measures/

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

ICESS/UCSB roles and general scheme:

- Create and distribute for evaluation a variety of established and new OC products which are candidates to become ESDR’s

- Implement and distribute quality indices for these products

- Determine the suite of products that can be considered OC-ESDR’s in consultation with an advisory board and data users in the ocean color community

- Once a product is accepted, codes, data production and distribution will be taken over by a NASA data center (OBPG/GSFC)

-Track and manage algorithms and data lineage throughout the process and implement methods for automatically informing users of updated products or analyses.

- Data access: ftp, OPeNDAP, Web-based,…

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

ICESS/UCSB role:

Process and distribute products for evaluation

Process and distribute Validation products

Interact with data users and advisory board to find consensus on products

Transfer codes, data production and distribution to GSFC

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

Products proposed for evaluation

Other products ? (PSD,…)

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

Calendar of provisional ESDR products availability

Availability Products

End of 1st Year (June 2009) GSM01 products:CHL, CDM, BBPSeaWiFS, AQUA (and MERIS)MERGED CHL, CDM, BBP

SeaWiFS-AQUA and SeaWiFS-AQUA-MERIS

NPP:VGPM and CbPM

End of 2nd Year (June 2010) QAA spectral IOPsGSM spectral IOPsKd(UV) (+ Kd(Vis.))2nd generation CbPM (spectrally resolved)

End of 3rd Year (June 2011) PFT (several)Spectral IOPs characteristics (η, S)3rd generation NPP

The Ocean Color MEASURES ProjectExample of products: GSM merged data

OCRT Meeting - 4-6 May, 2009 - New York City, NY

LwN() SeaWiFS

LwN() AQUA

LwN() MERIS

GSM01model

CHL

CDM

BBP

The Ocean Color MEASURES ProjectExample of products: GSM merged data

OCRT Meeting - 4-6 May, 2009 - New York City, NY

CHL

GSM01 merged data• Daily, 4-day, 8-day, monthly• Products uncertainties• Binned, Mapped (9 km)• HDF• Validation data

Sigmas CHL daily Sigmas CHL monthly

Data sources

Validation data:Matchups

The Ocean Color MEASURES ProjectExamples of products

OCRT Meeting - 4-6 May, 2009 - New York City, NY

NPP

8-Day and Monthly Net Primary Production (NPP) from both the VGPM and CbPM models will be generated by OSU and will be made available for evaluation.

The Ocean Color MEASURES ProjectExamples of products

OCRT Meeting - 4-6 May, 2009 - New York City, NY

Kd(UV) is derived from an empirical expression that links the diffuse attenuation coefficient at any wavelength in the UV to the CDM absorption and BBP.

Large data set of Kd(UV) and IOP measurements.

The Kd(320) map was generated from the CDM and BBP retrievals of the GSM01 model using SeaWiFS data.

DIFFUSE ATTENUATION IN THE UV

Bonhommeau et al., in Prep.

The Ocean Color MEASURES ProjectExamples of products

OCRT Meeting - 4-6 May, 2009 - New York City, NY

PSD slope Particle concentration for a differential size class

Bio-volume

PARTICLE SIZE DISTRIBUTION

Kostadinov et al., in revision

The Ocean Color MEASURES Project

Where to get the data ???

OCRT Meeting - 4-6 May, 2009 - New York City, NY

3 sources:

ftp: ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs

OPeNDAP server: http://dap.oceancolor.ucsb.edu/cgi-bin/nph-dods/data/oceancolor/

Wiki:http://wiki.icess.ucsb.edu/measures/index_php/Main_page

In the future:Web-based, user-friendly interface with slicing & dicing capability

The Ocean Color MEASURES Project

Where to get the data ???

OCRT Meeting - 4-6 May, 2009 - New York City, NY

http://wiki.icess.ucsb.edu/measures/index.php/Main_page

The Ocean Color MEASURES ProjectWhere are the data ???

OCRT Meeting - 4-6 May, 2009 - New York City, NY

http://wiki.icess.ucsb.edu/measures/index.php/Main_page

The Ocean Color MEASURES ProjectWhere are the data ???

OCRT Meeting - 4-6 May, 2009 - New York City, NY

http://wiki.icess.ucsb.edu/measures/index.php/Main_page

The Ocean Color MEASURES ProjectWhere are the data ???

OCRT Meeting - 4-6 May, 2009 - New York City, NY

http://wiki.icess.ucsb.edu/measures/index.php/Main_page

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

Interaction with data users - Consensus building

We need users feedbackIssues with the dataLike/don’t like a product (and why)What they would like to see differentSuggestions for changes or different ways

Where to post feedback and comments about the MEaSUREs products ?Wikie-mail: stephane@icess.ucsb.edu

Ocean Color gathering events (e.g. OCRT meetings) are probably a good place to discuss the fate of the MEaSUREs products

FEEDBACK FEEDBACK FEEDBACK

The Ocean Color MEASURES Project

OCRT Meeting - 4-6 May, 2009 - New York City, NY

Wiki:http://wiki.icess.ucsb.edu/measures/index_php/Main_page

ftp: ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs

OPeNDAP server: http://dap.oceancolor.ucsb.edu/cgi-bin/nph-dods/data/oceancolor/