The Ocean Color MEASURES Project S. Maritorena 1, J. Frew 2, N.B. Nelson 1, D.A. Siegel 1,3, M. Behrenfeld 4 1. Institute for Computational Earth System Science, University of California at Santa Barbara 2. Bren School of Environmental Science & Management, University of California at Santa Barbara 3. Department of Geography, University of California at Santa Barbara 4. Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon OCRT Meeting May, New York City, NY

The Ocean Color MEASURES Project OCRT Meeting May, 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.

The Ocean Color MEASURES Project OCRT Meeting May, 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 May, 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 May, New York City, NY Products proposed for evaluation Other products ? (PSD,…)

The Ocean Color MEASURES Project OCRT Meeting May, New York City, NY Calendar of provisional ESDR products availability AvailabilityProducts End of 1 st Year (June 2009)GSM01 products: CHL, CDM, BBP SeaWiFS, AQUA (and MERIS) MERGED CHL, CDM, BBP SeaWiFS-AQUA and SeaWiFS-AQUA-MERIS NPP: VGPM and CbPM End of 2 nd Year (June 2010)QAA spectral IOPs GSM spectral IOPs Kd(UV) (+ Kd(Vis.)) 2 nd generation CbPM (spectrally resolved) End of 3 rd Year (June 2011)PFT (several) Spectral IOPs characteristics (η, S) 3 rd generation NPP

The Ocean Color MEASURES Project Example of products: GSM merged data OCRT Meeting May, New York City, NY LwN( ) SeaWiFS LwN( ) AQUA LwN( ) MERIS GSM01 model CHL CDM BBP

The Ocean Color MEASURES Project Example of products: GSM merged data OCRT Meeting May, 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 dailySigmas CHL monthly Data sources Validation data: Matchups

The Ocean Color MEASURES Project Examples of products OCRT Meeting May, 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 Project Examples of products OCRT Meeting May, New York City, NY K d (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 K d (UV) and IOP measurements. The K d (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 Project Examples of products OCRT Meeting May, New York City, NY PSD slopeParticle 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 May, New York City, NY 3 sources: ftp: ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs OPeNDAP server: Wiki: In the future:Web-based, user-friendly interface with slicing & dicing capability

The Ocean Color MEASURES Project Where to get the data ??? OCRT Meeting May, New York City, NY

The Ocean Color MEASURES Project Where are the data ??? OCRT Meeting May, New York City, NY

The Ocean Color MEASURES Project Where are the data ??? OCRT Meeting May, New York City, NY

The Ocean Color MEASURES Project Where are the data ??? OCRT Meeting May, New York City, NY

The Ocean Color MEASURES Project OCRT Meeting May, New York City, NY Interaction with data users - Consensus building We need users feedback Issues with the data Like/don’t like a product (and why) What they would like to see different Suggestions for changes or different ways Where to post feedback and comments about the MEaSUREs products ? Wiki 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 May, New York City, NY Wiki: ftp: ftp.oceancolor.ucsb.edu//pub/org/oceancolor/MEaSUREs OPeNDAP server: