ECMWFMetview – MOPTC June 2004

Introduction to Metview

Vesa KarhilaFernando Ii

ECMWF

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About

Introduction – What can I do with Metview1 hour 15 minTraining course 3-5 March: three days!

Contents:Introduction with examplesHands-on play with MetviewDiscussion, questions

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About Metview

Interactive meteorological application to: Access Manipulate Visualisemeteorological data on Unix workstations

“Everything in Metview is an icon”

Easy to learn

No need to type/remember commands

Powerful meteorologically oriented macro language

Interactive and batch modes

Manuals available in PDF and HTML

Check Metview web pages

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What can I do with Metview?

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Wind plotting

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Field plotting

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Field plotting

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Satellite image + field

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Satellite image

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Tephigram

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Observation plotting

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Observation plotting

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Observation plotting

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Graph: curve, bar, area

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Graph: curve, bar, area

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Import Pictures

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Map Layout

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Metview Domain

Visualisation is only the top of Metview iceberg!

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Metview Concepts

A Metview Task, e.g.Retrieve -> Compute -> Visualise/Save

can vary widely in complexity, but always: Task is decomposed into simple steps in a logical

sequence Each step is an operation on a Metview icon

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Metview Main User Interface

Edit to open Desktop

Click-Right for Desktop Menu

Main DesktopOpened Desktop

Icon Drawers

Menu Bar

Desktop Menu

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Metview Icon Editors

Graphical editor (Display Window)

Standard editor (MARS Retrieval)

Family editor (Simple Formula)

Text editor (Macro)

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Metview Manuals

Access to manuals on Metview web pages

PDF versionPrintable, searchable

HTML versionLinked to editors’ ‘?’ button

Also: MARS and Magics manuals!

(Running Metview locally: Installation Guide)

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Where can I run Metview?

Remotely at ‘ecgate’

You need ECMWF user id and access to ‘ecgate’

At your own institute

Metview can be installed locallyFreely available to Member StatesAvailable with a price tag for outsiders

NOTE: Metview runs on Unix platforms

Now on your training workstation…

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Starting Metview

1. Start Metview with command:

metview_new &

2. Get examples by running script:

~trx/mv2004/mv_get_intro

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Icon Id(click to see contents in plain text format)Input area

Input element: Check Button

Templates Drawer:Stores predefined (frequently used) icons

Save/Exit area

Help Button (linked to HTML Help Pages)

Input element: Icon Field

Input element: Option Menu

Input element: Alphanumeric Field

Metview Icon Editor example

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Display Window

Menu Bar

Frame Menu(Click-Right)

Content Tab Controls Tab

Command Buttons (‘Tool Tip Help’ when pointing to)

Plot Size Control

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‘Change Geography’ Window

Available in Frame Menu

Current Selection

Projection Buttons

Coastlines Preferences

In Edit menu

Menu Bar

Command Buttons (‘Tool Tip Help’ when pointing to)

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Scrolling Through Your Data

1. Inside a plot frame Select Scroll Command Button - cursor shape

changes to a left/right arrow if more data available

2. Using Controls Tab:

Current Data Position Animation/Step Controls

Click for a full List of Data

Frame Selector(here only 1 frame)

Progress Meter: drawn/not-drawn (see also: Background Drawing

Button)

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The VIEW Concept

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Layout Editor - Layout Tab

Selected Frame

Subdivideselected Frame(s)

Align Buttons

Connect/Disconnect

selected Frames

Connected Frames New/Delete/Join

Frames

View Icon

Tabs

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Contents Tab

Active Frame(s)

Remove Buttons (‘Tool Tip Help’ when pointing to)

3 Levels

Icon Edit(Click-Right)

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Trajectories

Trajectory database 30 days of data (-20…+10)

For Member States users: trajectory database only on ‘ecgate’ (and ‘ecgate1’)

Two icons

1. Define trajectories

2. Define visualisation

Predefined simple outlook – customise after plotting

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3D Visualisation – Vis5D