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Technical
Approach
In order to leverage expertise and
technologies located at NASA Ames, UMT, CMU, UWF,
and Fetch Technologies, this research is utilizing
a distributed architecture to generate real-time nowcasts
and forecasts of ecosystem conditions. Data processing,
autonomous discovery, and model validation and application
occur in ten distinct steps:
- Retrieve
satellite data (AVHRR, MODIS, SeaWIFS), weather
data (DAYMET, RUC) and ancillary data (DEM, soils)
on a daily basis from national data centers and
store at NASA / UMT; total data ~ 1 GB/day.
- Data
selection and processing plan generated by the IMAGEbot
Planner at Ames to optimize processing and system
execution.
- Data
processing coordinated by Theseus at Fetch and IMAGEbot
at Ames.
- Data
products generated by TOPS, returned to Ames, delivered
to UWF/CMU by IMAGEbot.
- Bayes
net (Tetrad IV) and other machine learning techniques
used to analyze distributed heterogeneous datasets
(from TOPS/IMAGEbot)
to discover new causal relationships (UWF/CMU).
- Causal
models generated by Tetrad returned to NASA Ames.
- New
causal models incorporated into the TOPS biospheric
modeling system.
- New
plan generated at Ames and executed by Theseus and
IMAGEbot to produce
forecasts.
- Autonomous
validation and update of model on continuous basis
using machine learning techniques.
- Validated
models incorporated into TOPS for use in generation
of daily forecast maps.
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