1 / 47

How to use the VM

How to use the VM. Practical Guide Nele Smeets PASODOBLE Annual Meeting Helsinki 12-15 June, 2012. Goal. Create meta data for my service and insert the meta data in the central catalogue Publish daily WMS maps for my service Publish hourly time series as WFS layer for my service.

knoton
Download Presentation

How to use the VM

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. How to use the VM Practical Guide Nele Smeets PASODOBLE Annual Meeting Helsinki 12-15 June, 2012

  2. Goal • Create meta data for my service and insert the meta data in the central catalogue • Publish daily WMS maps for my service • Publish hourly time series as WFS layer for my service

  3. Step 1: Install the service integration tool • Virtual machine • Installation manual describes the installation and network configuration process • Configure the virtual machine: • Contact information used by GeoServer • URL of FTP site AEAT (catalogue) • Public URL for GeoServer • Result: (GENESIS) ARMS - data publication tool (GENESIS) Metadata editor (CC-QUALITY) Virtual Machine

  4. Step 2: Create meta data template • Download example template • Use the meta data editor to fill in the template • Save the template using the correct name: • pasodoble_region_pollutant_indicator_unit • e.g. pasodoble_blackforest_no2_dailyMaximum_ugm3 • Creating a template is done once (once for each service) • Check: The template will be added to the list of templates

  5. Download meta data template (home page -> meta-data template)

  6. Open template in meta data editor, edit, save as template

  7. The template is added to the list of templates

  8. Step 3: Convert output to correct format • NetCDF, CF compliant • Contains daily concentrations for one or more forecast days • For one service: • data for different regions are in different files • data for different pollutants are in different files • data for different indicators are in different files • data for different units are in different files • Namingconvention: • region_pollutant_indicator_unit_date.nc • e.g. blackforest_no2_dailyMaximum_ugm3_20120418.nc • e.g. blackforest_o3_dailyMaximum_ugm3_20120418.nc • Conversion should be added to your forecast chain

  9. Convert to NetCDF

  10. Step 4: FTP of NetCDF file to Virtual Machine • Use the following FTP configuration: • host: the IP address of your VM • user: ftpuser • password: pasodoble • The files are processed automatically: • meta data is generated, based on the template, and on meta data in the NetCDF file • the meta data is sent to the catalogue • the data is published as a WMS layer • The FTP should be done daily, so it should be added as the last part of your forecast chain

  11. FTP the NetCDF file to the VM (ftpuser/pasodoble)

  12. Step 5: Create hourly time series (optional) • Select airbase stations for your region • http://converters.eionet.europa.eu/xmlfile/airbase-stations.xml • Use AirbaseStation WFS of DLR: server URL: wdc.dlr.de/cgi-bin/pasodoble_eea_aq WFS layer: AIRBASE_STATIONS

  13. Example WFS request (airbaseobservations): • http://wdc.dlr.de/cgi-bin/pasodoble_eea_aq? • request=getfeature& • service=WFS& • version=1.0.0& • typename=AIRBASE_STATIONS& • filter= • <Filter> • <BBOX> • <PropertyName>Box</PropertyName> • <Box srsName='EPSG:4326'> • <coordinates>6.984,47.489 9.484,49.239</coordinates> • </Box> • </BBOX> • </Filter>

  14. Choose airbase stations from the list

  15. The result of the WFS request is a XML file containing airbase stations

  16. Step 5: Create hourly time series (optional) • Select airbase stations foryourregion • http://converters.eionet.europa.eu/xmlfile/airbase-stations.xml • UseAirbaseStation WFS of DLR • Computehourly time series foreach station, foreachforecastday • Insert the time series in the POSTGIS database • Result: The time series are available as WFS layer (GENESIS) ARMS (GENESIS) Metadata editor (CC-QUALITY) Virtual Machine

  17. Example WFS request (hourly time series of concentrations): • http://rma.vito.be/geo_pasodoble/wfs? • request=getfeature&service=WFS&version=1.0.0& • typename=pasodoble:pasodoble_timeseries& • filter=<Filter><And> • <PropertyIsBetween> • <PropertyName>timestamp</PropertyName> • <LowerBoundary><Function+name="dateParse"><Literal>yyyy-MM-dd'T'HH:mm:ss</Literal> • <Literal>2012-06-04T00:00:00</Literal></Function></LowerBoundary> • <UpperBoundary><Function+name="dateParse"><Literal>yyyy-MM-dd'T'HH:mm:ss</Literal> • <Literal>2012-06-11T23:00:00</Literal></Function></UpperBoundary> • </PropertyIsBetween> • <PropertyIsEqualTo><PropertyName>pollutant</PropertyName><Literal>no2</Literal></PropertyIsEqualTo> • <PropertyIsEqualTo><PropertyName>stationid</PropertyName><Literal>BETR701</Literal> • </PropertyIsEqualTo> • <PropertyIsEqualTo><PropertyName>region</PropertyName><Literal>ghent</Literal></PropertyIsEqualTo> • <PropertyIsEqualTo><PropertyName>day</PropertyName><Literal>0</Literal></PropertyIsEqualTo> • </And></Filter>

  18. Example data (for one service, one day, one station):

  19. Step 6: How can I check if everything is ok? • The meta data shouldbeadded to the catalogue. Thiscanbecheckedbygoing to the catalogue: • http://www.myair-eu.org/geonetwork/ • Search foryour service • The data shouldbepublished as WMS layer • check whether the layer is added in GeoServer (via home page) • open GeoServer, Layer Preview • Check logs: via home page

  20. The PASODOBLE catalogue (under development)

  21. The GeoServer layers (via home page)

  22. GeoServer layers (in GeoServer admin tool, via home page)

  23. GeoServer Layer Preview (in Geoserver admin tool)

  24. GeoServer Layer Preview (notice the time parameter in the URL)

  25. GeoServer Layer Preview (no data for the given time parameter)

  26. NetCDFSplitter.log (via home page)

  27. sendMetaData.log (via home page)

  28. Parameterised URL: • http://rma.vito.be/pasodoble/faces/index.jsp? • name=Black Forest NO2 (Daily Maximum)& • wmsUrl=pasodoblevm.rma.vito.be/geoserver/arms/wms& • wmsLayer=arms:pasodoble_blackforest_no2_dailyMaximum_ugm3_d0& • wmsVersion=1.1.0& • wfsUrl=pasodoblevm.rma.vito.be/geoserver/arms/wms& • startDate=2012-04-18& • endDate=2012-04-18& • bbox=6.98438,47.4896,9.48438,49.2396 • * empty end date ≈ ‘now’

  29. When using the parameterised URL, the web application is initialized for your service

  30. Whenusing the parameterised URL, the web application is initializedforyour service

  31. Conclusion: overview of the steps Forecast chain

  32. Thank you!

  33. Extra screenshots

  34. Home page

  35. GeoServer: before login

  36. GeoServer: after login

  37. GeoServer: Layer Preview

  38. GeoServer: Layer preview

  39. GeoServer: Layer preview Add time parameter to URL: &time=2012-04-18

  40. GeoServer: Layer preview No data for April 20: &time=2012-04-20

  41. Meta data editor

  42. GeoServer layers

  43. Meta data templates

  44. FTP client: make connection to the VM

  45. VM (GENESIS) ARMS - data publication tool (GENESIS) Metadata editor (CC-QUALITY) Virtual Machine

  46. Thank you!

More Related