Stowage & Inventory Management

This section discusses design considerations for the layout and design of stowage systems inside an underwater habitat. It also provides the characteristics of a successful onboard inventory management system design. Such a system can track the quantity, location, and status (e.g., remaining useful life) of inventory items. The inventory management function is one of the primary elements of onboard information management. Continue reading “Stowage & Inventory Management”


A Scour Hole (image from Wikimedia Commons, licence USGS / Public domain)

This chapter collects information on mooring of an underwater station, potential difficulties and solutions. Continue reading “Mooring”


For long-term stays in an underwater station, a plan for ideal nutrition is required, which takes into account the special circumstances such as increased-pressure environments and reduced sunlight. This section will discuss the specific requirements and the resulting dietary recommendations, which include environmental considerations (avoidance of waste…), safety precautions (avoidance of contamination of the habitat atmosphere…) and alternative sources of supply (own production, finished products…). Some considerations will require a certain design of the corresponding habitat sections. Contact us for access to the whole article.

Image from Wikimedia Commons; Obrer / CC BY-SA (

Undersea Station: Portholes

(Update 15.07.2020: complete makeover of the article; replaced outdated information; added new aspects from different sources like NASA’s Human Integration Handbook, 2010)

Windows are essential and present the most important reason to operate an underwater habitat. They are necessary for operation, safety and marketing. Continue reading “Undersea Station: Portholes”

Interior Lighting

(Updated 01.06.2020: complete edit of the article) Lighting in the main habitat will consist of different modes: standby, activity, emergency and disinfection. This section should explain the ideal system of lighting inside the underwater habitat. Continue reading “Interior Lighting”

Initial & Operational Financing

(Updated 30.08.2020) In this section we defined all potential sectors divided into mission conduction and sponsoring probability, as well as initial and operational phases. Feel free to contact us for details.

Undersea Station: Water Supply

Water Supply: Image by James Petts from London, England (Stream of water) [CC BY-SA 2.0 (], via Wikimedia Commons(Updated 09.02.2020: link concerning average need of water for a human being updated) Even though our station is surrounded by water we can not use it for most of our needs. Therefore for some demands we have to establish a sweet water supply. The easiest way is to bring sweet water from the shore and to fill corresponding tanks. Well, what kind of water do we need? Continue reading “Undersea Station: Water Supply”

General Requirements of Human Beings

To build an underwater habitat we have to know the measurements of human abilities, his limiting values and restrictions. In 2010 NASA published the Human Integration Design Handbook which gives answers to most of these questions. Though it is meant for space flight we can easily adapt most of it to an underwater application. The handbook is available as *.pdf on the server of our digital library. Contact Mart for access.

Branch & Bound

(Guest article by user Mike, thanks for contributing) By common definition, Branch & Bound is a mathematical algorithm to solve integer optimization problems. But simplified versions of Branch & Bound are also applied to find best fitting technical solutions manually. It is a useful tool for making fundamental decisions, such as the selection of a synthesis route during the project development of a new chemical factory complex.

In the context of CalamarPark, the design of the underwater habitat is such a fundamental decision: Should it be small or large? To operate at what depth? Ambient or atmospheric pressure? A certain design might be perfect at one location, but only second choice at another. Continue reading “Branch & Bound”