Design of CAP products and CAP applications (status report)

Design of CAP products andCAP applications (status report)

2 Petra Fechner, Siegfried Fechner – DWDGeneva, April 2013

Outline

Warning Management System of Deutscher Wetterdienst Public warnings

Special warnings

CAP products of DWD

Using CAP by DWD

by DWD customers

Design- and technical aspects Benefits of CAP documents

Profiling

Open issues

Best practices (CAP and meteorology)


Warning Management System of Deutscher Wetterdienst

DWD Law calls for "the issuance of official warnings of weather phenomena that could become a danger for public safety and order".

DWD operates a three-tiered warning management system (in time dimension)

it has five risk levels

warning management system is co-ordinated with disaster management of the federal states, which in Germany are responsible for disaster management

Deutscher Wetterdienst (DWD) is a federal authority under the Federal Ministry of Transport, Building and Urban Affairs, established in response to the Law on the Deutscher Wetterdienst (DWD Law).



DWD likewise issues warnings

to safeguard marine shipping and the sea coasts

against extreme heat and UV radiation (Dep. Human Biometeorology)

Aviation warnings (Dep. Aeronautical Meteorology)

DWD publishes a forest fire danger index (Dep. Agrometeorology)

Flood forecasting is the responsibility of the federal states where specific flood response centres are operated. Their forecasts rely on the meteorological information and forecasts supplied by DWD.



The three levels of warning management system are:

Weekly Weather Hazard Forecast: following 2 to 7 days

probability of occurence of severe weather based on numerical models

Severe Weather Watch: 48 - 6 h

hazardous weather phenomena is very likely; offered for regions

Warning: ~ 12 - 0 h

for different weather phenomena

issued no more than 12 hours before the arrival of the warning event



Geographical structures

rural districts (in vertical: 200m steps), ca. 400 districts

great lakes (i.e. lake Constance)

some parts of rural districts (i.e. seasides, mountain areas)


Providing channels for warnings:

dissemination via Internet

fax-on-demand services

text messages (SMS)

e-mail

in specific cases, also by telephone

ftp server (for download by customers)

general public is informed over the Internet (http://www.dwd.de)

closed online user groups (i.e. FeWIS for fire brigades; SWIS for winter maintenance service)

voluntary support of radio and television companies (There is no obligation on radio stations to disseminate

the DWD's warnings on television and radio because there are no legal regulations applicable to this area.)



Closed online user groups

SWIS (Road Weather Information System)

provides support for winter maintenance service management

delivers all warning information in special form for users

provides information about road conditions, forecasts of road conditions



Closed online user groups

FeWIS (Weather Information System for Fire Brigades)

targeted at the needs of professional fire services

delivers a warning overview, a warning situation report, severe weather watches and district-related warnings

provides many other types of information (weather radar, satellite loops, supplementary information about temperatures, precipitation, wind peaks, frost penetration depths, snow depths, forecast texts)



New service: optimized visualisation of warning situation

for mobile phones (left)

for websites of users (right)




Warning criteria same criteria for whole Germany

defined in collaboration with national authorities for disaster management, based on evaluation of climate data

different warning levels

Weather phenomena

Violent gusts

Hurricane-force gusts

Extreme hurricane-force gusts

Severe thunderstorm

Intense heavy rainfall

Extremely intense heavy rainfall

Strong continuous rain

Extremely strong continuous rain

Heavy snowfall

Extremely heavy snowfall

Heavy snowdrifts

Black ice

Heavy thaw

Wind gusts

Storm gusts

Violent storm gusts

Thunderstorm

Heavy rainfall

Continuous rain

Snowfall

Snowdrifts

Slippery roads

Fog

Frost

Severe frost

Warning level

Expected weather conditions Colour

Official warning of particularly

extreme and severe weather

Extremely dangerous weather conditions Dark red /

violet

Official severe weather

warning

Very dangerous weather conditions Red

Official warning of significant

weather

Dangerous weather conditions Ochre

Official weather warning Possibility of weather-related risks Yellow

No warning No weather-related risks Blue


CAP products of DWD

Public warning products as CAP XML documents (format UTF-8, CAP version 1.2)

Typical textbased warnings (format (ia5, txt)) are transformed into CAP version 1.2

Up to 35.000 different products (depending on warning situation)

Warning status of Germany as one CAP document AND Warning status of Germany as one Zip-Container of different CAP documents

published every 5 minutes

Including geographic details of warning areas (e.g. polygons)

an alternative product (including only geo-references) is scheduled

CAP aviation products

Wind shear warning as CAP document


Using CAP – by DWD (CAP warnings in GeoMapViewer)

Visualization of CAP – File in GeoMapViewer

Contextmenu


Using CAP – by DWD (GeoWebservice: dwd_alert)


Using CAP – by DWD customers (teletext)

Blue, yellow, ochre, red and dark red/violet points are controlled by CAP


Plattform of the official warnings of 33 National Meteorological Services

Using CAP – by MeteoAlarm

More than 1000 websites linking to meteoalarm.eu

Two steps (in near future):Export CAP warningsImport CAP Warnings from member states


MeteoAlarm: Parameter / Alert Types


Probabilities

< 5% unlikely

>30% possible

>60% probable

CAP Profil MeteoAlarm only available in intern documents

More details: please contact MeteoAlarm

MeteoAlarm: Relation between probabilities and CAP-certainty


Design and technical aspects

Benefits of CAP documents

Validation and Profiling

Open issues

Best practices


Benefits of CAP documents

CAP – a powerful format of alerts and warnings:

Clear strukture

Minimized „xml-overhead“

Well-established international standard

Useful format not only of alerts and warnings


Validation and profiling

Validation against xml schema (e.g. OASIS (CAP-v1.2.xsd)) Basic validation (independent of alerting scope)

Weak restrictions for the content of most of xml tags

Semanical checks are impossible (unable to check relations between content of different xml tags)

Profiling against own xml schema (https://werdis.dwd.de/conf/CAP-DWD-Profil-v1.9.xsd, documentation: https://werdis.dwd.de/infos/legend_warnings_CAP.pdf) Based on official xml schema (OASIS, CAP-v1.2.xsd)

Stronger restrictions for the content of relevant xml tags (e.g. basic type „string“ <-> enumeration of strings)

Semantical checks are impossible (unable to check relations between content of different xml tags).

Profiling against a combination of official xml schema AND own „schematron roles“ „two step“-validation ( 1. step: validation against OASIS, CAP-v1.2.xsd,

2. step: check against own schematron roles)

Semantical checks are possible.

Schematron – ISO standard since 2006


Open issues (Relation CAP / ISO 19xxx: Measure)

CAP: units unsolved

ISO19xxx:range of values(from .. to ..) andthresholds (>.. or <..)unsolved


Open issues (Proposals)

Workaround (DWD / MeteoAlarm)

Optional attribute:„uom“ (unit of measure, like ISO19XXX)


Open issues (CAP: geographic Objects)

CAP:Information about an area:

Useful area definition

But:

Bounding box(unsupported)

Altitude and ceiling only in feet (not compliant to German /European law)


Open issues (Proposals)

Workaround (DWD /MeteoAlarm):

Conversion into feet

Without optional attribute feet

With optional attribute e.g. meter

Proposal:optional attribute „uom“ (unit of measure, like ISO19XXX)

compliant to current CAP-schema


Design and technical aspects (best practices)

Best practices should be useful

Recommendations for identifiers

Recommendations for meteorological measurements

Recommendations for profiling / validation


Access to DWD-CAPs via „DWD basic information supply“

Access to FTP server (Registration required)

http://www.dwd.de/gds


Access to DWD-CAPs via „DWD basic information supply“

CAP as part of supply

Access to FTP server (Registration required)

http://www.dwd.de/gds


Access to DWD-CAPs via WebWerdis

Access to WebWerdis (Registration not required)

https://werdis.dwd.de


Access to WebWerdis (Registration not required)

Products and additional documents (e.g. xml scheme, code lists, …)

Access to DWD-CAPs via WebWerdis


Petra Fechner, Dep. WV 11 (Basic Forecasts)Siegfried Fechner, Dep. TI 15 (Systems and Operations)Frankfurter Strasse 135D-63067 Offenbach

Email: [email protected].: +49 (69) 8062-2253Fax:+49 (69) 8062-2259

Email: [email protected]: +49 (69) 8062-2865Fax:+49 (69) 8062-3566-----------------------------------------------------------------------------MeteoAlarmDr. Michael Staudinger, DirektorZentralanstalt für Meteorologie und GeodynamikHohe Warte 381190 Wien, Austria

Email: [email protected]: +43-1-36026 – 2001www.meteoalarm.eu

Thank you!

Design of CAP products and CAP applications (status report)

Documents

Transcript of Design of CAP products and CAP applications (status report)