HEMSAA

The German Society for Maritime Emergency Management (GMN) is continuously improving its services and procedures, expanding its offerings for customers. To meet this standard, the Emergency Response Centre for Offshore Wind Farms (NOW) is certified according to DIN EN ISO 9001:2015 and DIN EN 50518 Category II and undergoes regular audits. This ensures a high quality standard is maintained across all of our projects.

Our projects emerge from incident and drill debriefings, feedback from NOW, and the needs and requests of our customers – with whom we collaborate closely and communicate regularly. GMN demonstrates its commitment to patient care through its projects.

Address

Gesellschaft für maritimes Notfallmanagement mbH (GMN)
Werderstraße 2
28199 Bremen

HEMSA App

For our customers, GMN provides the HEMSA app (Helicopter Emergency Medical Service Availability). This app has been tailormade and developed in house. The app graphically and transparently displays the availability of HEMS providers depending on weather conditions.

It offers users a real-time overview of the available rescue resources, allowing precise coordination of offshore activities. By doing so, GMN contributes to offshore safety and helps to implement the ‘no HEMS, no work’ principle effectively.

GMN’s service package for offshore wind farm operators includes this application. If you are interested in access or receiving further information, feel free to contact us or use the HEMSA app registration form.

A tutorial on how to use the HEMSA app can be found in the download section.

HEMSAA Tutorials

Home, Login, Registration

Layout and Map-View

Detail View

Availability and Weather

Tabular View and History

Weather Policies, Notifications and Profil

HEMSAA - FAQ

What is HEMSAA?

HEMSAA is a web-based application developed by GMN that provides a transparent, real-time overview of HEMS availability based on weather conditions.

 

How can I get access to HEMSAA?

Access is requested via the green “Onboarding HEMSAA” button on the GMN website or via the HEMSAA start page. Click “Onboarding Forms” and then “Onboarding”. After your request has been reviewed, access will be set up.

How do I log in?

Login is possible either via a Microsoft Office 365 account or via a company email address (basic login), depending on the registration.

 

Which devices can HEMSAA be used on?

HEMSAA is browser-based and can be used on all common devices without installation.

 

Is there a test mode?

Yes. In addition to the production system, a test mode is available for testing and training purposes.

 

Are there still primary and secondary HEMS stations?

No. This distinction has been removed. All HEMS stations are treated equally and are displayed without lines or hierarchies in the map view.

 

What does the map view show?

The map view displays wind farms, platforms, HEMS stations and hospital landing sites, including their current status.

 

What is the difference between the weather map and the availability map?

Availability map: Shows whether a HEMS station is operational (recommended default mode).

Weather map: Shows current weather conditions only, regardless of operational status.

 

 

 

Why is a location shown in grey?

A grey status indicates that current or complete weather data is missing (for example, data older than two hours). In this case, no availability assessment can be made.

 

How up to date must weather data be?

Weather data should ideally be updated every 30 minutes. Data older than two hours is considered outdated.

 

What is the summary in the map view?

The summary provides a clear overview of all HEMS stations assigned to a wind farm, including their current status.

 

Is there a tabular view?

Yes. The tabular view allows data to be filtered, sorted and compared in a structured way.

 

Can I view historical data?

Yes. The history function allows past weather and availability data to be viewed and exported.

 

How do notifications work?

Status changes are shown as in-app notifications. Additionally, email notifications can be configured individually in the user profile.

 

Where can I find help on how to use HEMSAA?

Step-by-step tutorials explaining all HEMSAA functions are available on the GMN website.

 

Who can I contact for questions or support?

Support is available at any time via: support@gmn-bremen.de