nasa ges disc !!}!-data service and data management for

jcwei Tuesday, M

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• Goddard Earth Sciences

Data and Information Services Center (GES DISC)

NASA GES DISC !!}!-data service and data management for the Air Quality community

Jennifer Wei NASA GES DISC/Adnet System Inc.

HAQAST2 .IS-I>N:

Goddard b rth Scien~s Data lnform.atlon Services Cent.r

https://ntrs.nasa.gov/search.jsp?R=20170002317 2019-08-31T17:07:02+00:00Zbrought to you by

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The}!!!- GES DISC World

Advancing Technology

Earth Science

Data

Earth Science

Metadata

Documentation

Ingest, Process, Archive,

Distribute, Steward

Earth Science Data (on

computers

Data and Document

Preservation

Community Driven Data Access Capabilities

User, Data, Science Support

Value Added Products and

services

Research

Applications

Outreach

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• Big Earth Data Initiative (BEDI) set up Data Management standards

Origin: President Obama's "Big Data Research and Development Initiative" seeks to improve our ability to acquire knowledge and discover insights into large and complex collections of digital data.

Outcome: The Big Earth Data Initiative (BEDI) invests in standardizing and optimizing the collection, management and delivery of U.S. Government's civil Earth observation data.

• Discover: improve metadata in archives to make datasets more discoverable by popular search engines (e.g. , Google or Bing)

• Access: Develop better web accessible APis by improving geospatial coordinate handling and response formats

• Use: enhance data usability is the organization of data collections into 12 Societal Benefit Areas, or SBA.

Source: https:l/earthdata.nasa.gov/eosdis-role-in- . ~E\- I>IM".> God6ard Earth &c:ie'lfces

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• Easy to Discover- GES DISC Way

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• Easy to Discover- ESDIS Way

o- ! V Search " F . , • a Earthdsta Log.n I

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https://search.earthdata.nasa.gov

Enter your selll'dllorms or c:ldt Ne:d to Ub.,. otltt'Oductoty lOUt

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• Increase Access

GES DISC 0MN02<U103 1 a Feedback Help •

Atmospheric Composition , Water and Energy Cycle , and Climate Variability Data

< Go to Search Rewns

OMN02d: OMI/Aura N02 Cloud-Screened Total and Tropospheric Column L3 Global Gridded 0.25 degree x 0.25 degree V3

---·- This is level·3 daily globalgridded (0.25x0.25 deg) N~rogen Dioxide Product (OMN02d). OMN02d data product is a level-3 Grtdded Product wtlere pixel level data of good quality are binned and

•averaged" into 0.25x0.25 degree globsl grids. This p<oduct contains Total column N02 and Total Tropospheric Column N02, for all

atmospheric conditions, and for sky conditions WhE!fe doud fraction is h!ss than 30 percent Nitrogen dioxide is an important chemical species in both, the stratosphere where rt plays a key role in ozone chemistry, and in the troposphere where it is a precursor to ozone

pt"oduction. In the ttoposphere, It Is produced In various combustion processes and In lightning and is an indicator o f poor air quality. OMN02d data are stored in EOS Hierarchical Data Format (HOF-

EOS}. Each file contains data from the day lit portion More ...

Product SummaJy Data Citation Documentation

Shortname: OMN02d

Data Access

Online Archive

Search •

Simple Subset W1zard

Web Services ...

OPENDAP DATA

Web Map Service (WMS)

Web Coverage Service (WCS)

Web Coverage Service (WCS)

God6ard Earth Sciences Data Information Sel"''ites Cente

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•

I .. Users

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~ Volume , ..

Files

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Improve Usability - User Needs Based Data Usage Metrics

Metrics: MLS/OMI Data Distribution

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,[\ - I>IM: God6ard Earth Sciences

Data Information Sel"''ices Cente

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• Improve Usability - User Needs Based

Help Desk Requests Metrics/Google Scholar Metrics

0 User Complaints Q: Fail to Find/Access/Download Data, data

formats Cause: broken URL links, deprecating old

tools, workflow failure, HDF4/5 (why not ascii)

0 Application Q: Data Inquiry, Service Inquiry Cause: Diff. temporal/spatial data inquired,

--·-• ...

•• ·- ·'- ·-

interoperability other tools ._,,Sd>•'" (Matlab/IDL/Python, WCSIWMS, R/ArcGIS ... ) :: Download (l;ovann;

0 Suggestion Q: Subsetting/visualization service, data

transformation Cause: Software not compatible, non

conventional users .......... ""' ·- ·-

,[\ - I>IM: God6ard Earth Sciences


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Satellite Level 2 Services - MAPSS

The Multi-sensor Aerosol Products Sampling System (MAPSS) has been established as a consensus data framework for multi-sensor aerosol validation, intercomparison, and joint analysis. MAPSS provides statistics of spatial and temporal subsets of Level-2 aerosol scientific data sets (SDS) from a range of sensors that currently includes AERONET, MODIS, MISR, OM I, SWDB, VIIRS, POLDER, and CALIOP.

MAPSS

MAPSS: Muhi·sensor Aerosol Products Sampling System ,

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https:l/giovanni.sci.gsfc.nasa.gov/mapss/

-

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Satellite Level 2 + Model Services - DQViz

• Use v isual to demonstrate satellite Level 2 physical quant ity • Use visual to differentiate observations made by different platforms

Caveat: On litative

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• .,... __ , Improve Usability - User Needs Based

Knowledge advances by Citizen Science

' ........... •• •

•

... .

. .,._ -https://trends.google .com/trends/explore?cat=45&date=2007 -02-24%202017 -02-24&a=ai r%20guality

~ Internet is enriched with information ~ Recognize citizen scientists are both data producers

and users ~ Federal Crowdsourcing and Citizen Science Catalog

• https://citizenscience.gov • https://ccsinventory.wilsoncenter.org

~ GES DISC's perspective: How can we better utilize crowdsourcing apps to help the community?

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God6ard Earth Sciences Data Information Sel"''ices Cente

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• Using Twitter to Validate Satellite Obs.

Objective: Develop a general infrastructure for processing social media Use Case: Precipitation

)> Listen to Twitter stream in real-time for "precipitation"

and related tweets . )> Apply basic filters for exact

phrases. )> Extract location information. )> Map resulting tweet

distributions.

From Dr. William Teng ([email protected])

Realflme data rellieval API

!python) key w01d .....

rain

Additlonallweet Determina1ion te~ deanirc and H or Geo,aphical

hlterine Data location ...

Data Mining Twitter for Augmenting NASA Precipitation Research and Applications, funded by NASA ''Citizen Science for Earth Systems Program NNH16ZDA001N-CSESP

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.E\- I>I~C God6ard Earth Sciences


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•

How can we help?

[email protected]

[email protected] ,[\ - I>IM:

God6ard Earth Sciences Data Information Sel"''ices Cente

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