Step

Description

Use Case

Specialized Use Case

Comments

00

The Initiator is in charge of searches for warning services that provide events or predictions about potential flood on a given area. These services should be discovered by accessing GEOSS Portals (eg geoportal.org). 

A GEOSS Portal shall provide minimum information about available services and how to access them.

Search for resources in Registry, Clearinghouse and Community Catalogs

01

Based on services found at Step 0, the Initiator identifies areas where monitoring is needed and asks Actuator (Regional civil protection) to activate services that offer Early Warning (e.g. based on modeling such a Global Flood Potential Model) to monitor AOIs. 

Then the monitoring action consists to activate some Early Warning service and possibly subscribe to any related Alert service.

User presentation of information about available services, workflows, and alerts

Activity of client to consume services for datasets, sensors, models, workflows, etc)

02

When an alert is raised, Actuator(Regional civil protection) requests multiple Processors (Data Providers) to activate monitoring services. 

Processors activate such services. The output of such services should be WMS, WCS or SOS. The output should be on daily time monitoring.

Register resources in the GEOSS OCS Registry

Configure and deploy a component with associated services

03

A Processor configures/sends an event notification to Actuator (Regional civil protection) when monitoring detects upcoming disaster conditions. 

The notification can be send by using Sensor Alert Service (SAS).

Activity of client to consume services for datasets, sensors, models, workflows, etc

04

Based on Alert issuing by a Processor, the Actuator (Regional civil protection) accesses the result of observations using WCS or SOS (e.g. Daily Flood Map Prediction). 






Based on the map analysis, the Actuator (Regional civil protection) sends back to Initiator a demand for activation of new data acquisition.

User presentation of information about available services, workflows, and alerts

Activity of client to consume services for datasets, sensors, models, workflows, etc)

Use portals and clients to present data in useful ways for interpretation and decision support

05

Based on Initiator acknowledgment, the Actuator (Regional civil protection) activates a feasability request for a new data acquisition to multiple Processors (Data Providers) throughSPS.

User presentation of information about available services, workflows, and alerts

06

The Actuator (Regional civil protection) receives back from multiple Processors (Data Providers) feasibility sensor acquisition results. 

The Actuator analyses feasibility study, both from SPS output to a dedicated SPS client application and from SPS KML output.

User presentation of information about available services, workflows, and alerts

Use portals and clients to present data in useful ways for interpretation and decision support

07

Based on existing feasibility studies, the Actuator (Regional civil protection) sends a request for acquisition (tasking) through SPS. If possible the acquisition should be for data before, during and after event. 

User presentation of information about available services, workflows, and alerts

08

In parallel with acquisition request, the Actuator (Regional civil protection) request data from catalogue before event for a pre-damage analysis.

Search for resources in Registry, Clearinghouse and Community Catalogs

09

Once data is acquired, a Processorsends notification to Actuator (Regional civil protection) via WS Addressing or WS Notification.

One or more Processors (Data Providers) make ortho-image available (pre and after).

Geometric processing / Ortho-processing can be activated via WPS. 

Publication is made through WCS / WMS.

Register resources in the GEOSS OCS Registry

Configure and deploy a component with associated services

Configure and deploy workflow consisting of one or more services

10

Actuator (Regional civil protection)accesses the data via WCS or WMS and should start the analysis process. 

The Actuator can submit such results to an Hydrology/Meteorology Disaster Managementdomain experts (e.g.the Carabean Disaster Response Agency) and ask for 'near real time' feedback on the produced maps.

Activity of client to consume services for datasets, sensors, models, workflows, etc

Use portals and clients to present data in useful ways for interpretation and decision support

11

In parallel, Actuator (Regional civil protection) should request thematic processing from Processors (Map producer). 

This would involve the WPS running a classification or detection algorithm, and production of PNG and KML overlays on the raster result (GeoTIFF) from the WPS

Configure and deploy workflow consisting of one or more services

12

The result of processing is released and make available through WCS or WMS. 

Depending on when the data is acquired, and whether the Alert was issued quite early before event, the data should be thematically processed to update the state of road network, and publish that map via WMS. 

The WMS is used on-the-field by Actuator (Regional civil protection) , e.g. for building an evacuation plan.

Whether data is acquired but delivered too late during or after event, the Actuator should provide damage map after event. 

This information should be available throughWMS and used for assessing damage byinsurance company or by NGO organisation to help Public.

Activity of client to consume services for datasets, sensors, models, workflows, etc

Use portals and clients to present data in useful ways for interpretation and decision support

13

All maps produced are released for public communication and accessible via massmarket products such as KML.