introduction to dar_gisc_tokyo_rev03
DESCRIPTION
GISC Tokyo Portal User GuideTRANSCRIPT
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GISC Tokyo Japan Meteorological Agency
Introduction to DAR revision 0.3
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Guide 0: Essentials
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What is DAR?
● WIS = GTS + DAR ● GTS is:
● for operational services (World Weather Watch) ● for time- & operation-critical usage
● DAR is for the rest of you
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What is DAR?
● DAR = Discovery + Access + Retrieval ● Discovery
● You can search whole-WIS catalog
● Access ● Ad-hoc browsing of recent global data
● Retrieval ● Subscribe to data
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Start here: www.wis-jma.go.jp
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Guide 1: Discovery
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You can Search DAR Catalogue
● DAR Catalogue: collection of metadata records ● Metadata record links to data or document ● GISC's DAR Catalogue covers entire WIS
● Not only global data available at GISC Tokyo
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Start search at “metadata” menu
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Now you're browsing catalogue
Metadata Record
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You can search the catalogue
← Metadata Source
← Text in metadata record: only in title, abstract, or keywords, or anywhere (full text)
← Bounding box: latitude & longitude ranges
← Bounding box is displayed as you type
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Each record describes a dataset
Click “+”(plus) button to expand complex content
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Data Access from Metadata
● GTS data: link top of the page
● Other data: section “distribution info” often has links to data
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Guide 2: Access
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Two ways to find data
● GISC Catalogue (described before) ● Scope: entire WIS information ● May link to external site
– JMA can't be responsible about content
● GISC Cache ● Scope: global distribution data only ● All data on GISC Tokyo server
– Coherent service
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GISC Cache Entry Points
This time Click here
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Listing of GISC Cache
● All kinds of recent data
● Newest first ● So much traffic
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Want to Narrow Down Listing?
● You can search ● “WMO Format” ● Select “Select and
Browse”
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Search window of GISC Cache
● You can select data types or properties
● Click “Browse” button ● You'll see new listing
of selected data
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When Browser Asks Password ● The data is somewhat restricted
● WMO additional data ● OPMET (Aviation Weather) data ● Data with other restrictions
● Registration required ● Contact:
Mr. Takahiro Saito Senior Coordinator for International
Telecommunication w i s - j m a @ m e t. k i s h o u. g o. j p
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Guide 2-2: KML Mapping of data
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KML Visualization of data
● Special at GISC Tokyo ● KML is standard format for geographical data ● Can be viewed with Google Earth
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GISC Cache Entry Points
This time Click here
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KML Version of GISC Cache This time Click here
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Google Earth runs from browser
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Google Earth
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Navigate inside KML Catalogue
Click plus (+) to open folder
Click box if folder is empty
Check box to load data Move right tab
here first
Slide left tab here then
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Caveats on Google Earth
● Google Earth may prompt username and password ● This means you are loading restricted data ● Google Earth freezes if you leave prompt ● You can type GISC Tokyo's login and password ● Or you can safely dismiss login
● Sometimes it may get very slow ● When too much data is selected ● Please be patient
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Recent surface reports mapped
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Guide 3: Subscription
(this is a bit tricky one)
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Subscription at GISC Tokyo
● Automatic download of near-realtime data ● Downloading script runs on your computer
● Similar to subscription of RSS ● You can quickly fix if there's problem
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To Start Subscription
● Go to GISC-Tokyo top: http://www.wis-jma.go.jp
● Go to “WMO Format” to open a pull-down menu
● Select “Subscribe”
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Step 1: select data policy
● Choose “Open” to select publicly available data
● Add “Closed” for data with access control ● You have to be
registered in that case
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Step 2: select data type
● Multiple choices not allowed; if you want two or more types of data, please repeat step 1 to 4 and create multiple shell scripts. Try “Surface”
for example
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Step 3: select code form and WMO region
Try “SYNOP” for example
Try “All” for example
● Multiple choices allowed
You can also specify a
producing center or exclude a
center.
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Step 4: select your environment
Click here
This time we assume Linux
On Windows, directory cannot begin with drive
letter (C:) or backslash ( \ )
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Result: script is shown
Copy and paste it to a text file,
that works as a script
● This shell will endlessly repeat subscription ● every 30 seconds
for observation data,
● every 5 minutes for GRIB data,
● every 30 minutes for climate data.
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Linux Instructions ● Check: /usr/bin/wget is installed (okay for most Linux)
● Check: network connectivity (set $http_proxy if you are behind firewall)
● Save script to a text file (any name okay: say download.sh)
● Start it as a background job $ sh ./download.sh start > /dev/null 2>&1 < /dev/null &
● Stop it $ sh ./download.sh stop
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Windows Instructions ● Check: GNU Wget is installed
● Check: Microsoft PowerShell 2.0 is installed
● Open notepad
● Paste script & save (suffix must be .PS1; say download.ps1 )
● Prepare: type on console as administrator
PowerShell -command "& {Set-ExecutionPolicy RemoteSigned}"
● Start:
● Open console & go to folder with script
● PowerShell -WindowStyle hidden .\download.ps1 start
● Console vanishes if successful
● Stop:
● Open console & go to folder with script
● PowerShell .\download.ps1 stop
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Windows Notices ● When in trouble, try PowerShell .\download.ps1 start to see
messages
● Option -WindowStyle hidden closes window
● If you see Yen sign (¥) here, it should be backslash ( ): that’s problem of Asian fonts. Caution on copy-pasting.
● If you download script from Internet or email, the file is marked “remote”. If PowerShell requires digital signature after Set-ExecutionPolicy, try:
● Open file property (by right-clicking on folder view)
● Press “Unblock” button
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Guide 4: Help Desk
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When in trouble...
● Ticket System ● Web-based board
you can write questions
● Registration Required
● Online Documentations
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Entering Ticket System
● Go to “Help Desk” to open menu
● Select “Ticket System”
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Login
● Please enter your login name and password
● Contact us to get registered
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Select “Project”
● Please select “DAR” for most cases
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Project view
● You can post new issue
● You can view existing issues processed
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Posting New Issue
● Please fill: ● Brief title ● Description
● Click “Create” to submit ● You will have email
when GISC Tokyo staff respond
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View issues
● Listing of open issues (being processed)
● To see closed (older) issues: ● Set status “All” ● Click “Apply”
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Questions and Registration Request:
Please contact w i s - j m a @ m e t. k i s h o u. g o. j p