GeoMet 2 : Accès ouvert aux

données météorologiques d’ECCC

par services web géospatiaux

Alexandre Leroux, M.Sc., Ing.

Service météorologique du Canada

Environnement et Changement climatique Canada

Géomatique 2016

19 octobre 2016

Environment and Climate Change Canada’s

Meteorological Service of Canada

Authoritative data

That’s the only place in Canada where

numerical weather prediction (NWP) models

are run in a fully 24/7 operational context

Canadian Meteorological Centre, Dorval

Canadian Weather Forecasts are Among the Best Worldwide

We’re the red squares, the

lower the value, the better

4

Open Data Server: MSC Datamart

• http://dd.meteo.gc.ca

• Free and Open access for specialized users

• Open data: freely available to everyone to use and republish as they wish, on

the main condition of attribution of the original data to Environment and

Climate Change Canada

• Open formats: published specifications that can be used by anyone

• Target audience has some weather and/or IT knowledge

• Designed for direct, automated (batch) downloading of data via HTTP

protocol, supports AMQP « just-in-time pull » notifications and data retrievals

• Offer is complementary to EC’s weather.gc.ca website

• Service is anonymous, supported on best-effort basis

• Data also available via web services on MSC GeoMet

MSC GeoMet in a Nutshell

Provides public access to

MSC data via international

web services standards /

interoperable APIs

GeoMet: What’s in for the Users?

• Real-time operational and time-enabled 4D data

• Data from the local scales (pts/1km) to the global scale (25km)

• Data is accessed on-the-fly, always the latest available

• Data is available in multiple formats, either raw data

(clip/zip/ship) or for visualization (with custom styling)

• Users can integrate data directly into their tools:

desktop software, mobile devices, web pages, etc

• Only the requested data is transmitted for the user-specified

spatial / temporal extent

• There are no pre-generated images or files

Page 7 – November-1-16

Current Operational MSC GeoMet

• Public real-time Geospatial Web Services delivery of

meteorological data

– NWP

– Radar Mosaic

• OGC Standards

– WMS

– KML

• Operational since 2009

• Officially launched 2013

• TBS policy on geospatial data

• Federal Geospatial Platform

Page 8 – November-1-16

Data Available on Current GeoMet

Data served in WMS and Network-KML:

• NWP models: GDPS, RDPS, HRDPS, RAQDPS,

RDPA, REPS, GIOPS

– Deterministic and probabilistic NWP models, including

Atmosphere-Ocean coupled models

– Layers include: temperature, precipitation, wind speed &

direction, cloud cover, humidity, pressure, probabilistic

ensemble forecasts, ocean temperature and currents, ocean

ice extent, etc

– Derived products: dominant precipitation type, wildfire

forecasts, etc

• Weather radar mosaic: Canadian and American radar

mosaic at 4km resolution updated every 10 minutes,

both 8 and 14-colors styles

Page 9 – November-1-16

GeoMet 2: Public Beta Launched June 2016

• Major and significant improvements

• Supports many additional standards and output formats:

WFS, WCS, WMTS, SLD, GeoTIFF, CSV, Shapefile,

KML, GeoJSON, SVG, JPEG, etc

• More MSC data served, starting with most of what's

available on MSC Datamart

• Improvement examples: visualize data from WMS with

user-provided colorscales, users will now be able to

access raw data for areas of interest in multiple formats

• New GeoMet will become operational in 2017

• Currently available on

http://geo.weather.gc.ca/geomet-beta

Data to be Served by the New GeoMet 2

Initial focus on MSC Datamart content

• Weather alerts

• 7-days city weather forecasts

• Weather radar

• Deterministic NWP models: GDPS, RDPS, HRDPS, RAQDPS,

GIOPS, FireWork

• Probabilistic NWP models: GEPS, REPS, NAEFS, CanSIPS

• Other model data: RDPA, DIAG_NW

• Weather observations

• Other data: marine forecasts and alerts, AQHI, hurricane

tracks, nowcasting, forecast regions, weatheradio

Get Real-Time Vector Data with WFS

• Only the raw data you need, when you need it

• Users can request data in several formats, such as CSV,

GeoJSON, Shapefile, KML, SQL, SVG, etc

Raw Real-Time Data from Rasters with WCS

• Request the raw data for specific areas

• Served live to users in various formats, such as GeoTIFF

and ASCII

Interactive Web Maps & SLD

Users can easily build their own web maps. Features usually

include:

• Pan and zoom anywhere, up to full resolution

• Query data, show raw values and display live graphs

• Overlay multiple data layers, including from external sources

• Animate layers at any scale

SLD

• The Styled Layer Descriptor (SLD) standard allows users to

specify their own symbology for the display of GeoMet

layers

Lightweight Queries

• Any specific data, anywhere

• The following query for layers RDPS.ETA_TT and

RDPS.ETA_UU at -73.5, 45.5 (Montreal) generates this simple

answer

Request:

http://geo.weather.gc.ca/geomet/?SERVICE=WMS&VERSION=1.1.1&REQUEST=GetFeatureInfo&Q

UERY_LAYERS=RDPS.ETA_TT,RDPS.ETA_UU&INFO_FORMAT=text/plain&X=1&Y=1&EXCEPTIO

NS=xml &LAYERS=RDPS.ETA_TT,RDPS.ETA_UU&CRS=CRS:84 &BBOX=-73.5,45.6,-

73.6,45.4&WIDTH=1&HEIGHT=1

Plain text response:

model=RDPS var=TT desc=Air temperature unit=°C

value=7.1577935218811035 lat=45.6 lon=-73.6 level=1.0 ETA

i=842.7638549804688 j=419.1793212890625 date=2016-10-17T12:00:00Z

seconds=1476705600 model=RDPS var=UU desc=Winds unit=kts

value=6.404748439788818 16.47967529296875 lat=45.6 lon=-73.6 level=1.0

ETA i=842.7638549804688 j=419.1793212890625 date=2016-10-

17T12:00:00Z seconds=1476705600

AQHI in CSV result

• Example of the AQHI as CSV generated on-the-fly:

Live tables

• Automated tables with always the latest data available

Interactive Graphs

• With lightweight requests to GeoMet, data is sent on-the-fly

to generate interactive graphs

GeoMet Layers Animated in Google Earth

North-American Weather Radar Mosaic

Weather Alerts

• Weather warnings, watches and statements

Live Canadian Weather 7-days Forecast

Weather Alerts and City Forecasts

Geopotential Height with Contours

Geopotential Height with Colorramp

HRDPS Wind Barbs nearby Vancouver

GeoMet in ArcGIS, Time-enabled WMS

GeoMet in ArcGIS Online

GeoMet on Mobile Devices

• GeoMet layers are ready for

interactive maps on mobile

devices

GeoMet in the Federal Geospatial Platform

GeoMet WMS layers into

Sécurité civile du Québec’s

IGO-Navigateur

This tool is used for emergency response

(911, emergency measures, etc)

GeoMet WMS layers into MASAS

MASAS: location-based situational awareness information and alerts for

first response and emergency management agencies

Ontario Fire Program

CHC’s hurricane and tropical storm forecast tracks

UberWeather.com leveraging GeoMet to enhance

their offer to the public

GeoMet on WaterOffice

• Regional Deterministic

Precipitation Analysis:

the best estimate of the

amount of precipitation

that occured over

recent past periods of

6 or 24 hours

FireWork Model: PM2.5 from Forest Fires

Global Ice Ocean Prediction System

• Layers: sea-ice fraction, ice velocity, volume of see ice,

ocean current, sea temperature

Canadian Weatheradio Signal Strength

RDPS.DIAG Dominant Precipitation Type

Regional Ensemble Prediction System

Tons of probabilistic forecasts letting you know about chances

of exceeding specific temperatures, precipitations by type

(e.g. rain, snow, freezing rain, etc), wind gusts, etc, over the

6h, 12h and 24h periods of time

Example: probability

of >10 cm of snow

over a period of 12h

Access Statistics Highlights

• MSC Datamart

– About 500 GB of fresh data available daily

– Over 500,000 daily users

– Over 15M hits daily

• MSC GeoMet

– Over 400 weather layers available, with lots more to come

– Over 5,000 daily users

– About 500,000 maps served daily

– Expecting increasing interest in GeoMet 2,

thanks to new datasets served, SLD, WFS and WCS

Connect to the New GeoMet Today

Available on GeoMet-Beta:

http://geo.weather.gc.ca/geomet-beta

Who are the users?

• Public sector

• Provincial agencies and departments, including state-owned

companies and Emergency Management Organizations (MASAS,

Ontario Fire Program, Alberta Snowplows)

• Municipalities

• Private sector

• Weather companies and organizations

• Mobile applications developers (CanWeather 2, Radar Map,

Weather Now)

• Public weather web maps (MeteoCentre, UberWeather, ArcGIS

Online)

• Agriculture, transportation, energy, insurance, universities, etc.

• Hundreds of thousands of ordinary people… through

third-party mobile and web applications

I Want More!

•Join the GeoMet-Info mailing list

• GeoMet's current official page: www.ec.gc.ca/meteo-weather/default.asp?lang=En&n=C0D9B3D8-1

(or just google 'GeoMet Environment Canada')

Let us know how you use or plan to use GeoMet

• MSC public data documentation being expanded and

reorganized, including for MSC GeoMet

• MSC data & metadata on http://open.canada.ca

• WMS server for NWP-Research experimental products:

‘RPN-WMS’: http://collaboration.cmc.ec.gc.ca/rpn-

wms/?service=WMS&request=GetCapabilities

• Questions and comments: ec.DPS-Client.ec@canada.ca