SDCG-4Pasadena, CA, USASeptember 4-6, 2013

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Brian Killough (NASA, SEO)Paul Kessler, Shaun Deacon,Brian Williams,

Sanjay Gowda and Kim Keith

September 4-6, 2013SDCG-4 Meeting

Pasadena, CA, USA

GFOI Element #2Historical Coverage Characterization

and National Data Acquisitions

SDCG-4Pasadena, CA, USASeptember 4-6, 2013

SEO Support to GFOI – Element #2

• What tools will the SEO develop to support GFOI Element 2 – Historical Coverage Characterization and National Data Acquisitions?

• The COVE team is developing a new tool (spin off from COVE) called the “Coverage Analyzer”. This tool will automate the archival search process and allow users to view historical coverage for any location, time period and mission.

• To date, we have only utilized the Landsat archive. We intend to work with other Agencies to develop potential links to their archives ... ESA-Sentinels, INPE-CBERS, Radarsat-2, RapidEye, SPOT, ALOS, TerraSAR, and SAOCOM missions. This will be a topic of discussion at WGISS in 2 weeks.

SDCG-4Pasadena, CA, USASeptember 4-6, 2013

Coverage Analyzer - Prototype

Select a Mission/Instrument + Date Range (past)Select a Region (or define)Define a cloud threshold (Landsat only)View tabular results of total acquisitions

SDCG-4Pasadena, CA, USASeptember 4-6, 2013

Coverage Analyzer – Outputs

View data in graphical formSelect data (Acquisitions, Cloud%)View bar charts of Total vs. Cloudy

SDCG-4Pasadena, CA, USASeptember 4-6, 2013

Coverage Analyzer Thoughts

• How can the Coverage Analyzer Tool best support GFOI and the Element-2 requirements?

• Besides Landsat, what other missions should be targeted for linking to historical data? These other missions may alter the output plans since Landsat includes cloud information with their archive data.

• What output is needed?Tabular data by Path-Row for download?Bar charts to show total acquisitions vs. cloud threshold?Colored KML files for Google Earth or COVE?User-defined color ranges or user-defined regions?