Discovery and Web Services in Support of SST Datasets at the PO.DAAC

Edward Armstrong, Jorge Vazquez Toshio M. Chin, Charles Thompson

Jet Propulsion Laboratory/California Institute of Technology, Pasadena, CA

Rosanna Sumagaysay-AoudaRaytheon, Pasadena, CA

NASA SST Meeting Nov. 2-4, 2011Courtyard Marriott, Miami, Florida

Outline

• Facet Search and Discovery• State of the Ocean• Dataminer• POET• THREDDS

PO.DAAC dataset discovery

Facet “drilling”

State of the Ocean (SOTO)

• Google Earth based web interface• Visualizations of near real-time parameters

– SST (MODIS + blended)– SSTA– SSHA– chlorophyll (MODIS)– ocean winds (ASCAT)

• Additional overlays– ocean storms from last 30 days– NDBC buoy data– Aquarius salinity

• http://podaac-tools.jpl.nasa.gov/soto

SOTO: SST + NDBC Buoy Data

SOTO: SSTA + Recent Storms

Dataminer

• Level 2 swath subsetting web interface facilitating sub-granule queries based upon regional, temporal, and data summary constraints

• Growing number of data products from PO.DAAC and other data centers– GHRSST MODIS Aqua and Terra *– GHRSST AMSR-E – Quikscat– Jason-2*– AIRS CO2*

• http://podaac-tools.jpl.nasa.gov/dataminer

Dataminer: Search Results

Dataminer: Quicklook

POET 2.0

• Level 3 & 4 subsetting web interface facilitating annotated imaging based upon product, spatial and temporal constraints

• http://poet.jpl.nasa.gov• Customized outputs:• 14 possible formats• Multiple plot types (map, time series,

animation, lon-time profile)

POET 2.0: Selecting a Product

POET 2.0: Request Result

THREDDS Data Server (TDS)• Simplifies the discovery and use of scientific data.• Subsetting via OPeNDAP• Viewers via (Client Applications)

– IDV (integrated data viewer), NetCDF Java Tools, Godiva2

• AGGREGATION• PO.DAAC TDS (SST Datasets)–MODIS AQUA L3 SST 4KM MONTHLY (4um/11um) (4km)– GHRSST L2P Gridded Global Subskin SST AMSRE (25km)– GHRSST L4 AVHRR_OI Global Blended SST Analysis (25km)– GHRSST L4 G1SST Global Foundation SST (1km)– GHRSST L4 MUR Global Foundation SST (1km)

GHRSST/SST forum

• Easy to use• One time registration

(http://podaac.jpl.nasa.gov/forum/forum)• Maintains complete thread of all

conversations on a particular topic

Future Plans

• Improved PO.DAAC Subsetter– Combines Dataminer and POET functionality into a

single tool• Search, imaging, and subsetting for L2/L3/L4 data

products

– Revamped interface, efficient/fast search– Beta version to be unveiled at 2012 Ocean

Sciences