NdEdit: Interactive Data Selection Tool

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NdEdit Interactive Data Selection Tool

• John R. Osborne and Donald W. Denbo
• PMEL/NOAA

American Meteorological Society / IIPS January
13-17, 2002, Orlando, FL
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Overview

• The Problem
• Locating and selecting individual observations
  from a number of large collections of in-situ
  observations is complex.
• Designing software that makes this process
  intuitive for the user is challenging
• The Solution
• NdEdit,
• An intuitive, interactive Java tool
• For investigating the space-time relationship of
  in-situ data observations
• Provides graphical views of the locations of
  selected datasets in linked windows showing
  selected 2D views of space and time distribution
• Filtering, selecting, sub-setting, or zooming in
  one 2D view is reflected in the other views
• Provides interactive linked browsing of data
  locations in space and time
• E.g., a user can apply a narrow time filter in
  one window, and see the data locations in that
  time band in the latitude-longitude map view.

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NdEditCustomized for in-situ data

• Java tool
• Platform independent
• Java Bean architecture allows integration with
  other tools
• Standalone application

• Linked windows
• Choice of 2D views
• latitude-longitude (map)
• latitude-depth
• latitude-time
• longitude-depth
• longitude-time
• depth-time
• Interactive with zoom

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NdEditCustomized for in-situ data(continued)

• Selection Tools
• Box
• Polygon
• Multi-segment section line with user-settable
  width
• Single station selection
• Non-contiguous selections
• Tools work in all 2D views

• Map Features
• Overlay bathymetry
• Overlay coastlines
• Filter or subset data
• Browse time-space distribution of in-situ data
• Filter in any 2D view
• Time or space (lat, lon, z) filters
• Remove or retain stations in filter region

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NdEdit Linked windows show in-situ data
locations in time and space
Lat-time view
Map view
Data is distributed in time from 1986-1991
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We can use the time filter to see where this 1987
data lies in space
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sliding the time window (right) reveals
geographic location of data in map view (left)
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Time Filter Data locations (left window)for
Time bands (right window)
ALL YEARS
1990
1987
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Use Section Tool to select stations along a
multi-segment path. In this example, stations, in
a time window, are being selected along a depth
contour.
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Results of Section Tool Note highlighted
stations along depth contour and corresponding
points in time/latitude panel.
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Selecting a section line in a time window
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In-situ Data ApplicationsUtilizing NdEdit

• Climate Data Portal
• Distributed data access
• Java OceanAtlas 3.0
• Interactive desktop browsing of ocean profile
  datasets
• PMEL EPIC system
• For management, display, and analysis of
  oceanographic in-situ datasets
• Collaboration tools for Fisheries-Oceanography
• Under development
• based on OceanShare and the Climate Data Portal
• utilizing NdEdit
• http//www.epic.noaa.gov/collab/

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Climate Data Portal Client ApplicationUtilizing
NdEdit

• Distributed data access
• http//www.epic.noaa.gov/cdp/

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Java OceanAtlas 3.0Utilizing NdEdit

• Interactive desktop browsing of ocean profile
  datasets
• http//www.pmel.noaa.gov/epic/software/JavaJOA.htm
  
• http//odf.ucsd.edu/joa

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EPIC System Utilizing NdEdit

• Use EPIC system to select data and write to
  pointer file
• Use standalone NdEdit to open the pointer file
  and refine selection
• http//www.epic.noaa.gov

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NdEdit Summary

• Unique and sophisticated interactive Java tool
• For locating and selecting individual
  observations
• from a number of large collections of in-situ
  observations
• Standalone application
• Implemented as a Java bean in platform-neutral
  Java language
• Utilized within a growing number of applications

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More information about NdEdit

• NdEdit websitehttp//www.pmel.noaa.gov/epic/softw
  are/JavaNdedit.htm
• On-line help and tutorialhttp//www.epic.noaa.gov
  /epic/software/ndedit/