Sample Data Interactive Publication:

1
Sample Data Interactive Publication

• Interactive access, analysis and display of
  remotely stored datasets from a convective rain
  event over Colorado

Ben Domenico Jeff Weber Unidata Program
Center Boulder, CO
This material is based upon work supported by the
National Science Foundation.
2
Objectives

• Make scientific data an integral part of the
  digital libraries and the World Wide Web
• Enable readers of scientific publications to
  interact directly with datasets referenced in the
  publications
• Facilitate the creation of educational modules
  with embedded tools that allow learners to work
  directly with authentic scientific datasets.

3
Data/tool Links in Documents

• As Hurricane Charley approached the Florida
  coast, it amplified from a category 2 storm at
  1300Z to a category 4 storm at 2000Z
  (landfall). This view displays in 3-D, the iso
  surface of wind speeds of 18 m/s (36 mph) from
  1200Z on the 13th to 1200Z on the 14th. The
  display also includes wind vectors at the 500
  millibar level. The US coastline is highlited in
  white, and the u component of the 10 meter winds
  is displayed in a contour plane view. This is
  output from a workstation_eta model run over the
  Florida domain. To view this via the IDV select
  this link Workstation Eta
• Hurricane Charley's rainfall was greatest near
  the eyewall, this dataset of Base Reflectivity
  from Tampa Bay starting at 1301Z to 2022Z,
  shows the intense banding as it comes ashore. The
  temporal resolution begins at every 15 minutes
  and goes to every 5 minutes starting at 1900Z.
  Of course once you load the bundle, you can
  manipulate the times and duration as you desire,
  this is the power of a compund interactive
  document. To view the Tampa Bay radar products
  select this linkTampa Bay RADAR

4
Data/tool Links in Documents

• As Hurricane Charley approached the Florida
  coast, it amplified from a category 2 storm at
  1300Z to a category 4 storm at 2000Z
  (landfall). This view displays in 3-D, the iso
  surface of wind speeds of 18 m/s (36 mph) from
  1200Z on the 13th to 1200Z on the 14th. The
  display also includes wind vectors at the 500
  millibar level. The US coastline is highlited in
  white, and the u component of the 10 meter winds
  is displayed in a contour plane view. This is
  output from a workstation_eta model run over the
  Florida domain. To view this via the IDV select
  this link Workstation Eta
• Hurricane Charley's rainfall was greatest near
  the eyewall, this dataset of Base Reflectivity
  from Tampa Bay starting at 1301Z to 2022Z,
  shows the intense banding as it comes ashore. The
  temporal resolution begins at every 15 minutes
  and goes to every 5 minutes starting at 1900Z.
  Of course once you load the bundle, you can
  manipulate the times and duration as you desire,
  this is the power of a compund interactive
  document. To view the Tampa Bay radar products
  select this linkTampa Bay RADAR

5
Browser-based Access
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Data Analysis and Display System Components
WithThin Client (Browser-based) User Interface
Browser on Workstation
Specs
Output
Browser HTTP Get/Post
Graphical Rendering
Computation
Web HTTP Protocol
Picture
ComputationSpec
OutputSpec
Output
DataAccess
Web Server HTTP Get/Post
DataSpec
Server Computer
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Browser-based Thin client

• Computation and graphics on server
• Server determines analysis functionality, sends
  pictures to client
• Local browser interface for specifying data,
  computation, graphics output

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Data Analysis and Display System Components With
Internet Client/Server Data Access
Client Module
Data Spec
Data
Data
Internet Client/Server Protocol
Graphical Rendering
Computation
Desktop Application onClient Workstation
Subsetting Format Transformations
DataSpec
Internet/Web Service
Data
Data
Data
DataAccess
Server Computer
9
Thick client Desktop application

• Computation and graphics on local workstation
• User control of application functionality via
  desktop application
• Server accesses, subsets, converts, transfers data

10
Desktop Client

• Local analysis and display operations
• Data from remote server(s)

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Advantages

• Local control of application software
• Integration of data from multiple sources

IDD
Lightningdata server
IDD
Streamflowdata server
Satellitedata server
IDD
Client/server data access
Flood/landslide computation anddata server
IDD
Weather Obs.data server
Demographic data server
Digital library discovery
Radardata server
Global modeldata server
IDD
Weather model computation anddata server
IDD
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THREDDS THematic Realtime Environmental
Distributed Data Services
Local user applications e.g., LAS, McIDAS,
IDV, VGEE, IDL, MatLab...
DLESE Digital Library for Earth-System Education
Discovery
Client/server data access protocols, e.g.
OpenDAP, ADDE, WCS, FTP
DLinterchangeprotocol
Satellite Images, e.g.
Satellite Images, e.g.
Satellite Images, e.g.
Hydrology Data, e.g.
Geophysical Data, e.g.
Satellite Imagery...
IDD
IDD
IDD
IDD
IDD
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Challenges

• BensAMS2005draft.ppt

• Agreed-upon protocols for data access (e.g.,
  OPeNDAP, ADDE, WCS)
• Catalogs of data on remote servers (e.g.,
  THREDDS, CSW) Discovery and usage metadata
• Persistent storage on server sites or
• Not everyone has ability to create own permanent
  case studies collections
• Mechanism for invoking local application from web
  page (e.g., agreed upon mime-type)

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More Information

• Other data interactive documentshttp//my.unidat
  a.ucar.edu/content/projects/THREDDS/DataPublicatio
  ns/index.html
• jweber_at_unidata.ucar.eduben_at_unidata.ucar.edu
• http//my.unidata.ucar.edu