Visualization and workflows

Gregory Leptoukh & Christopher LynnesNASA GSFC

Topics• Package vs. API • Using just a visualization part• The more powerful, the less control - need to find

middle ground• Adjusting look publication quality?• Google API not suitable for science?• Use inside workflow• Visualization vs. WMS (+provenance)• REST protocol for visualization• 3D interactive vs. performance

Leptoukh: Visualization & Workflows, ESSIAugust, 2010

Using Google viz

August, 2010 Leptoukh: Visualization & Workflows, ESSI

Using NCL

August, 2010 Leptoukh: Visualization & Workflows, ESSI

Decorated

August, 2010 Leptoukh: Visualization & Workflows, ESSI

Undecorated

August, 2010 Leptoukh: Visualization & Workflows, ESSI

Giovanni Allows Scientists to Concentrate on the Science

GES DISC tools allow scientists to compress the

time needed for pre-science preliminary tasks:

data discovery, access, manipulation, visualization,

and basic statistical analysis.

DO SCIENCE

Submit the paper

Minutes

Web-based Services:

Perform filtering/masking

Find data Retrieve high volume data

Extract parameters

Perform spatial and other subsetting

Identify quality and other flags and constraints

Develop analysis and visualization

Accept/discard/get more data (sat, model, ground-based)

Learn formats and develop readers

Jan

Feb

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May

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Apr

Pre-Science Days for

exploration

Use the best data for the final analysis

Write the paper

Derive conclusions

Exploration

Use the best data for the final analysis

Write the paper

Initial Analysis

Derive conclusions

Submit the paper

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Aug

Sep

Oct

The Old Way: The Giovanni Way:

Read Data

Subset Spatially

Filter Quality

Reformat

Analyze

Explore

Reproject

Visualize

Extract Parameter

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Scientists have more time to do science.Scientists have more time to do science.

DO SCIENCE

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Giovanni provides a suite of statistical analysis and

visualization tools for the comparison of regional and

global datasets.

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Area Plot Time Series Model Output

Profile Cross-Section Correlations Column Densities

Giovanni update, Leptoukh

Giovanni for Science Analysis

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