文档介绍：Tracking Metadata and Lineage of the Data Processing Chain for Mapping Snow Cover Properties with the NASA MODIS
James Frew1, Thomas H. Painter2, Peter Slaughter1, Jeff Dozier1
1Donald Bren School of Environmental Science and Management, University of California, Santa Barbara
2National Snow and Ice Data Center, University of Colorado, Boulder
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Outline
Motivation
Snow mapping product
Implications for hydrologic modeling
Lineage Capture
Wrapping: the ESSW experience
Instrumenting, overriding, monitoring: the (ongoing) ES3 experience
MODIS image – Sierra Nevada
EOS Terra MODIS
07 March 2004
MOD09 Surface Reflectance
4
Snow-covered area and grain size
Hindu Kush
2003 DOY 070
Colorado Rockies CLPX 13 March 2002
Model structure: MODIS snow-area / albedo
Lineage Capture, Take 1
The ESSW experience
Using Existing Science Applications
No “standard” Earth puting mercial packages (ArcInfo, MATLAB, …)
public packages/models (MM5, MODTRAN, …)
locally-developed codes
binations of
Example: SST from AVHRR
commercial, standalone programs
parameters highly customized for UCSB
How do we get these programs municate
cooperate
with ESSW, without rewriting them?
Navigate
(Manual/Automatic)
Receive
Ingest and Calibrate
Rectify
Sea Surface Temp (SST)
SST
Maps
Lineage: Current Best Practice