THE OFFICIAL MAGAZINE OF DIVERS ALERT NETWORK

Read Previous Issues of Alert Diver

Filter Available Articles by Selecting a Category:

Filter...

  • Reset Results

When Should the Rescue Begin?

By Christine Tamburri and Jim Gunderson

Q1 2022

DIVING INHERENTLY CARRIES AN ELEVATED LEVEL OF RISK because humans cannot survive underwater without specialized equipment. When things go wrong, an effective rescue is vital for a favorable outcome. Most rescue diver courses teach students basic techniques to apply after something goes wrong, but better courses also provide techniques to prevent incidents from occurring in […]

Scuba Cylinder Rundown

By Grant Dong; photos by Stephen Frink

Q1 2022

The 11-liter aluminum 80, aptly named for its 11-liter internal volume and 80-cubic-foot capacity when filled to its 200 bar/3,000 PSI rated pressure, is by far the most common cylinder. Just because it is the most common, however, may not mean it is the right one for you. Cylinders come in a wide variety of […]

Underwater Smartphone Photography

By Tobias Friedrich; photos by Tobias Friedrich

Q1 2022

LIKE ANOTHER UNIVERSE, the underwater world is full of whimsical inhabitants, sinuous sharks, and huge mammals that have always fascinated people and probably always will. As a photographer, you enter completely new territory when you begin shooting underwater and learning how to adapt to the conditions of the aquatic world. Lighting subjects underwater differs significantly […]

Iceland

By Text and photos by Brandon Cole

Q1 2022

It’s not every day you can witness the inner workings of our planet by taking a live look under the hood at the engine of creation. Some scientists claim that life on Earth began from hydrothermal vents in the ocean’s abyssal reaches. That realm is much deeper than where I float now, but otherwise it’s […]

Not Only for Diving

By Gary Fetterman

Q1 2022

WHILE DAN’S SUITE OF EDUCATIONAL PROGRAMS focus primarily on diving, graduates of the courses can apply the skills and knowledge they learned to many circumstances outside the aquatic realm. My wife and I were driving home from a weekend getaway to Myrtle Beach, South Carolina, heading northbound on Interstate 95. As expected, I-95 was moderately […]

What Does It Mean?

By Interview by Frauke Tillmans, Ph.D.; photos courtesy of Stephen Thom

Q1 2022

A PROFESSOR OF EMERGENCY MEDICINE and researcher at the University of Maryland School of Medicine, Stephen Thom holds medical and doctorate degrees from the University of Rochester. He previously led various clinical programs, including hyperbaric and emergency medicine, and a research lab at the University of Pennsylvania. What is your academic background? My medical specialty […]

Florida Keys History Underwater

By Brenda Altmeier; photos by Stephen Frink

Q1 2022

Beneath the ocean waves, our underwater history provides evidence of events and people that have contributed to our maritime landscape. Research on submerged sites is an ever-evolving frontier where discoveries continue to happen in places previously unknown to maritime historians. Diving in the Florida Keys National Marine Sanctuary (FKNMS) is an exceptional experience that offers […]

DAN Dispatch: DAN Launches 2022 Webinar Series

Q1 2022

DAN HAS LAUNCHED A NEW SERIES of live monthly webinars on its DAN TV YouTube channel at youtube.com/user/DiversAlertNetworkTV. Throughout 2022, experts from DAN’s Research, Safety Services, and Medical Services teams will give presentations on topics relevant to divers, dive professionals, and dive business owners as we look beyond the pandemic and resume diving and traveling. […]

Read Previous Issues of Alert Diver

English