NdEdit for Interactive in-situ Data Selection John R. Osborne and Donald W. Denbo NOAA/PMEL American Meteorological Society / IIPS January 13-17, 2002, Orlando, FL

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. Overview

NdEdit Customized for in-situ data Java tool Platform independent Java Bean architecture allows integration with other tools Linked windows Choice of 2D views: latitude-longitude (map), latitude-depth, latitude- time, longitude-depth, longitude-time, and depth- time Interactive with zoom 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 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 view Data is distributed in time from Latitude-time view NdEdit: Linked windows show in-situ data locations in time and space

We can use the time filter to see where this 1987 data lies in space…

Sliding the time window (right) reveals geographic location of data in map view (left)

Browsing data locations in time

Use Section Tool to select stations along a multi-segment path. In this example, stations are being selected along a depth contour.

Results of Section Tool: Note highlighted stations along depth contour and corresponding points in time/latitude panel.

Selecting a section line in a time window

In-situ data applications utilizing NdEdit Java OceanAtlas 3.0 Interactive desktop browsing of ocean profile datasets See AMS IIPS agenda for presentations

In-situ data applications utilizing NdEdit Climate Data Portal Distributed data access PMEL EPIC system For management/display/analysis of oceanographic in-situ datasets Collaboration tools for Fisheries-Oceanography OceanShare, See AMS IIPS agenda for presentations

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

More information about NdEdit NdEdit website On-line help and tutorial