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Explore various data access mechanisms, tools, and products derived from satellite data for marine applications, including SST, ocean color, winds, and more. Learn about blending data sources, product development, and managing operational data streams.
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Tools for Data Access and Application Dave Foley CoastWatch Coordinator Joint Institute for Marine and Atmospheric Research University of Hawaii Fisheries Applications of Satellite Data Corvallis, OR August 22, 2006
Overview • Data and derived products made available • Various access mechanisms • Choosing tools appropriate to the application • Outline of Laboratory Section of the course
Composite Images • Integrate across time on one platform to mitigate obscuring by clouds • Integrate across sensors and platforms (e.g., microwave and Ifrared, polar-orbiting and geostationary)
A Real-Time Blended SST Product using 2DVAR Data Sources: AVHHR, GOES, AMSR-E, TMI, and in-situ
Include those from satellite sensors that measure SST Ocean color Ocean winds, and Sea surface height. Satellite Ocean Data and Data Products
Deliver Useful Products • Easily Accessed (flexible systems) • Acquisition • Transportable formats • Value-added products • Relevant • Simple (indices, thresholds, anomalies) • Sample applications
Products for NMFS • Convergence time series • Marine debris • Long-line fisheries • Interaction of LL fishery and turtles • Blended SST • Mesoscale oceanography • Geolocation • Primary Productivity
Products for NMFS • Surface ocean currents • Larval transport • Analysis • Extracted time series (simple) • Program design • Data acquisition • Context for data analysis
New Satellite Products • Solar irradiance (GOES and GMS) • GOES frontal probability Index • Upwelling Index (PAR, wind, Chl a, SST and SSH) • Convergence index (Wind, Chl a, SST)
Product Development • Specific NOAA needs identified • Utilize existing infrastructure and human resources when possible • CoastWatch (funded by NESDIS) • OceanWatch (joint effort NMFS/NESDIS) • Partner with external agencies for data access and new product development • Partner with people who know the critters.
Data Management • Sustaining Operational Data Streams • Establishing and Maintaining Archives of established products • Meeting IOOS/GEOSS Standards • Meeting Specialized Regional Needs for new products • Making data more useful and usable
Data Access • Near Real Time • Live access server las.pfel.noaa.gov/oceanwatch.html • Simple SST Browser coastwatch.pfel.noaa.gov • New and improved browser coastwatch.pfel.noaa.gov/coastwatch/CWBrowser.jsp • Delayed science-quality data • Live access server (above) • Archive (????)
National Data Centers • NASA DAACS • PODAAC at Jet Propulsion Lab • DAAC at Goddard • CLASS (NOAA)
Maintaining Time Series • Develop tools for frequent and long-term monitoring of the ocean environment as it pertains to living marine resources • Integrate complimentary data sets to generate products regionally appropriate • Deliver derived products for timely use by resource managers and researchers from a variety of disciplines
Data Integration • Essential types of integration • Ground truth • Improves satellite products
SST at Maro Reef • Define minimum acceptable performance • Know when it works • Know when it fails • Devise regional calibrations
Data Integration • Essential types of integration • Ground truth • Improves satellite data • Sky truth • Improves in situ collection method
Winds at French Frigate Shoals • Identified discrepancy between satellite and in situ • Tested additional in situ platforms • Corrected error in mooring data
Applications Tools • ArcGIS (or other ESRI Products) • Excellent geographic referencing • Simple graphical interface • WYSIWYG output • Cannot easily sample at frequencies appropriate to relevant oceanic and atmospheric phenomena.
Application Tools • Matlab, IDL, R etc… • Rigorous processing capabilities • Flexible I/O
Sample Procedure GOES Frontal Probability Index • Algorithm Development • U. Wisconsin (F. Wu) • NESDIS (T. Mavor) • MLML (L. Breoker) • OSU (T. Strub) • Data delivery • NOAA|NESDIS (GOES) • NASDA (GMS)
Sample Procedure Solar Frontal Index • Processing • NOAA|NESDIS|ORA (GOES) • CoastWatch (GMS) • QA/QC • CoastWatch and CIOSS (OSU) • IMERP (Peru) • End product generation • CoastWatch
Course Schedule Tuesday Afternoon • ArcGIS I - Luke Spence (SWFSC, Pacific grove) • Accessing and importing satellite data into ArcGIS • Overlay and extract data along animal tracks • Using “BobDAP” for data access
Course Schedule Wednesday Morning • ArcGIS II - Carlos Rivera (SEFSC, Miami) • Importing vector and raster data into ArcGIS • Processing data within ArcGIS • Review of data models available • Project-based development
Course Schedule Wednesday Afternoon • CDAT - Dave Foley (SWFSC,Pacific Grove) • Basic satellite data manipulation tool • Recently enhanced acquisition capability • Matlab • Data acquisition via OPeNDAP • Data extraction for time/space points • Quick n’ dirty data analysis for tracks • Sample application (xtractomatic).
Course Schedule Thursday • Work on projects • Return to earlier topics (user request) • Present/discuss progress on projects in the afternoon • Bomb’s Away