Diving High Altitude Lakes of Nepal That's One Small Step

Total Page:16

File Type:pdf, Size:1020Kb

Diving High Altitude Lakes of Nepal That's One Small Step Himalayan Heaven Diving high altitude lakes of Nepal text by Andrey Bizyukin photos by Maxim Gresko No One Else Will Ever Dive Higher or Report on this Unknown Expedition. Underwater Himalayas – these words, while absurd at first glance, began to make sense in 1999 when Andrei Andryushin (NAUI dive instructor) together with his friend and adventure companion, Denis Bakin, have been traveling in the area of Anapurna, one of Nepal’s eight-thousand-meter mountain peaks. At one of the passes, a sherpa guide told Andrei that not That’s one small step for far from their route lay Tilicho, the man, one giant leap for the highest mountain lake in the mankind. world. -- Neil Armstrong Tents are dwarfed by the Himalayan mountain peaks surrounding Tilicho, the highest mountain lake in the worldl. 1 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED feature Himalaya Steep mountain passes make the trek up to Lake Tilicho difficult and trecherous. Different sources positioned the lake and made a presentation of his idea representative could not participate in at an altitude varying from 4,960 to – to set an unbeatable world record by the expedition personally. But neither 5,200m above sea level and described making a dive in the highest mountain this nor the lack of sponsors and high its size as 4 by 1.5 km across. Asking the lake in the world. Vadim strongly sup- cost of the expedition could stop the locals and guides about the lake as ported the idea. enthusiasts in their determination to set well as subsequent internet search con- Soon the following group of enthu- a new world diving record. firmed that no person had ever dared siasts started working on the project: In pursuit of their dream, the adven- to dive in the lake. Andrei Andryushin, Denis Bakin, Vadim turers decided to finance the expe- Belenikin, Maxim Gresko, Pavel Ruslanov, dition with their own personal funds. The Big Idea Guennadi Slobodanyuk, Dmitri Friedman All logistics issues were handed As it usually is with decisive people, and Svetlana Chistyakova. over to the Himalayan Club, whose the path from an idea to its practical To everyone’s disappointment, the president, Sergei Vertelov, decid- realization was not long. Upon his return representative office of the Guinness ed to join the expedition personally. to Moscow, Andrei met with Vadim Book of Records turned down the Belenikin, president of Sprout Dive Club, request to register the record since their Andrei Andryushin takes a break on the trail up the mountain side. 2 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED A breathtaking view of the Himalayan mountans from the trail. 3 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED feature Himalaya View from inside a tent overlooking the sparkling surface of Lake Tilicho. Challenges case of trouble was impossible, and the mum exposure of one minute. The task to bring over half a ton of equip- group could not get information on the Then, there was the flight to Katmandu, ment, including a compressor, and a availability of a single pressure cham- a transfer to a run-down local carrier, a group of divers to a remote region of ber in Nepal. It’s a well-known rule that flight to Manang — a village claiming Nepal located at the same altitude air travel should be avoided for some to have the highest dirt airstrip in the of that of the peak of Elbrus, looked period after diving. But the atmospheric world (3550m above the sea level), a complicated by any standard. Another pressure at the altitude of the lake of two-day stopover for acclimatization, a problem was the absence of proven Tilicho is 0.5 bar, which is much less than check dive in a local lake and getting a tables that would allow divers to calcu- in a cabin of any commercial airplane. blessing from a local lama, followed by late maximum duration and depth of a After some approximate calculations, an exhausting two-day climb to Tilicho. dive at such an altitude. it was decided that the dive depth On top of that, urgent evacuation in should be limited to 25m with a maxi- Members of the team huddle together on the shore as a diver submerges. 4 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED feature Himalaya Andrei and the team members prepare for the record setting dive and help each other suit up. High atltudes make any task much harder to accomplish. Tilicho On September 23th, 2000, the expedition reached (headache, nausea, etc). It was then decided the lake. Tilicho astounded everyone with its pris- to follow the initial plan and begin diving the next tine beauty. The lake was absolute cyan in color. day. On the lake surface, huge pieces of ice were Sunny weather that everybody enjoyed during floating, sparkling in the cold rays of the sun. the day was replaced by snow, strong winds and Later, it became clear that the ice was brought temperatures at minus 10°C during the night. to the lake by avalanches, which rushed several In the morning, with the help of an inflatable times a day down the glacier covering the west- boat and an echo sounder, the first depth meas- ern slope of the mountain. urements were taken. The measurements showed The camp was set up on the shore opposite to that a narrow shallow band by the water’s edge the glacier. At the water’s edge, our GPS (global near the camp sloped abruptly into a sharp positioning system) was showing an altitude of rocky incline that was much deeper than what 5,000m. Due to insufficient acclimatization period, the echo sounder could measure (max. 75m). most of the group members were suffering from In addition, strange formations resembling sea- different symptoms of altitude sickness weeds were found at the depth of 50m. Divers use echo sound equipment to measure the depths of the lake. 5 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED feature Himalaya Strong winds , whipping snow and extreme temperatures make for a very tough night on the shores of Lake Tilicho. Remote and pristine, Lake Tilicho is the highest mountain lake in the world. Preparations Any movement at such altitude can make With a lot of effort, a Colty Sub compressor a person short of breath. It causes suffoca- managed to fill the air tanks up to 100 bars. tion and requires time to regain normal But the weather started getting bad again, breathing. so the first dive was made from the shore Two kilometers north of the camp, they near the camp. This dive, even though chose a place with convenient access to a shallow one at 10m, plus exposure to the water. Friends helped Andrei to put on extreme temperatures during the following his gear, and then he went underwater. “I night, exhausted the team. The night was was moving down along a rocky slope. It very cold and gusts of wind and snow tore was quite dark under the water. Visibility was out two tents. no more that 1m. The water temperature at On the morning of September 25th, Andrei the surface was 6°C. My wrist computer was still willing to accomplish the goals of switched over to dive mode as I reached Team members rest on the shore of Lake Tilicho the initial plan. Together with Denis Bakin, the depth of 5m. That’s when it indicated which sits at an altitude of 5000m. Maxim Gresko and the sherpas loaded zero depth," said Andrei. with diving equipment, he went over to the "I went down to 21m according to com- northern shore of the lake where the profile puter. The water temperature there was of the slope and shoreline would allow them 3°C. The rocky slope kept going down, but I to make the record dive. turned around and started going up to the A diver checks his gear in the shore dive. 6 X-RAY MAG 1 : 2 : 2004 EDITORIAL FEATURES TRAVEL EQUIPMENT & NEWS ECOLOGY PROFILES PORTFOLIO CLASSIFIED feature Himalaya ABOVE: The Russian flag keeps vigil at a campsite dusted with snow in the early morning hours. PHYSICAL RISKS IN HIGH ALTITUDE DIVING Training in high altitude diving proce- Many people wrongly believe that surface following the slope profile. It was impor- dures is essential for safety in diving a headache at altitude is “normal” tant to go back to where I started from under the at altitude. when it is really a symptom of AMS. water, because swimming on the surface in full One must be willing to admit that There are normal physiologic chang- one has altitude illness. diving gear at the altitude of Elbrus peak requires es that occur in all individuals who inhuman effort. My dive lasted for 10 to 15 min- adventure to high altitudes: According to the High Altitude Medi- utes and brought no surprises. Afterwards, I felt • Hyperventilation (breathing fast) cine Guide by Thomas E. Dietz, MD great satisfaction that I reached my goal, and I • Shortness of breath during exertion Emergency & Wilderness Medicine, experienced a rush of energy, probably thanks • Increased urination there are two rules to follow: • Night time changes in breathing to breathing oxygen-rich air from the tank. I did pattern GOLDEN RULE #1 not discover any forms of underwater life, but this • Awakening frequently at night It is OK to get altitude illness.
Recommended publications
  • Chapter 23 ENVIRONMENTAL EXTREMES: ALTERNOBARIC
    Environmental Extremes: Alternobaric Chapter 23 ENVIRONMENTAL EXTREMES: ALTERNOBARIC RICHARD A. SCHEURING, DO, MS*; WILLIAM RAINEY JOHNSON, MD†; GEOFFREY E. CIARLONE, PhD‡; DAVID KEYSER, PhD§; NAILI CHEN, DO, MPH, MASc¥; and FRANCIS G. O’CONNOR, MD, MPH¶ INTRODUCTION DEFINITIONS MILITARY HISTORY AND EPIDEMIOLOGY Altitude Aviation Undersea Operations MILITARY APPLIED PHYSIOLOGY Altitude Aviation Undersea Operations HUMAN PERFORMANCE OPTIMIZATION STRATEGIES FOR EXTREME ENVIRONMENTS Altitude Aviation Undersea Operations ONLINE RESOURCES FOR ALTERNOBARIC ENVIRONMENTS SUMMARY *Colonel, Medical Corps, US Army Reserve; Associate Professor, Military and Emergency Medicine, Uniformed Services University of the Health Sci- ences, Bethesda, Maryland †Lieutenant, Medical Corps, US Navy; Undersea Medical Officer, Undersea Medicine Department, Naval Medical Research Center, Silver Spring, Maryland ‡Lieutenant, Medical Service Corps, US Navy; Research Physiologist, Undersea Medicine Department, Naval Medical Research Center, Silver Spring, Maryland §Program Director, Traumatic Injury Research Program; Assistant Professor, Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland ¥Colonel, Medical Corps, US Air Force; Assistant Professor, Military and Emergency Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland ¶Colonel (Retired), Medical Corps, US Army; Professor and former Department Chair, Military and Emergency Medicine, Uniformed Services University of the Health Sciences,
    [Show full text]
  • Diving Safety Manual Revision 3.2
    Diving Safety Manual Revision 3.2 Original Document: June 22, 1983 Revision 1: January 1, 1991 Revision 2: May 15, 2002 Revision 3: September 1, 2010 Revision 3.1: September 15, 2014 Revision 3.2: February 8, 2018 WOODS HOLE OCEANOGRAPHIC INSTITUTION i WHOI Diving Safety Manual DIVING SAFETY MANUAL, REVISION 3.2 Revision 3.2 of the Woods Hole Oceanographic Institution Diving Safety Manual has been reviewed and is approved for implementation. It replaces and supersedes all previous versions and diving-related Institution Memoranda. Dr. George P. Lohmann Edward F. O’Brien Chair, Diving Control Board Diving Safety Officer MS#23 MS#28 [email protected] [email protected] Ronald Reif David Fisichella Institution Safety Officer Diving Control Board MS#48 MS#17 [email protected] [email protected] Dr. Laurence P. Madin John D. Sisson Diving Control Board Diving Control Board MS#39 MS#18 [email protected] [email protected] Christopher Land Dr. Steve Elgar Diving Control Board Diving Control Board MS# 33 MS #11 [email protected] [email protected] Martin McCafferty EMT-P, DMT, EMD-A Diving Control Board DAN Medical Information Specialist [email protected] ii WHOI Diving Safety Manual WOODS HOLE OCEANOGRAPHIC INSTITUTION DIVING SAFETY MANUAL REVISION 3.2, September 5, 2017 INTRODUCTION Scuba diving was first used at the Institution in the summer of 1952. At first, formal instruction and proper information was unavailable, but in early 1953 training was obtained at the Naval Submarine Escape Training Tank in New London, Connecticut and also with the Navy Underwater Demolition Team in St.
    [Show full text]
  • Biomechanics of Safe Ascents Workshop
    PROCEEDINGS OF BIOMECHANICS OF SAFE ASCENTS WORKSHOP — 10 ft E 30 ft TIME AMERICAN ACADEMY OF UNDERWATER SCIENCES September 25 - 27, 1989 Woods Hole, Massachusetts Proceedings of the AAUS Biomechanics of Safe Ascents Workshop Michael A. Lang and Glen H. Egstrom, (Editors) Copyright © 1990 by AMERICAN ACADEMY OF UNDERWATER SCIENCES 947 Newhall Street Costa Mesa, CA 92627 All Rights Reserved No part of this book may be reproduced in any form by photostat, microfilm, or any other means, without written permission from the publishers Copies of these Proceedings can be purchased from AAUS at the above address This workshop was sponsored in part by the National Oceanic and Atmospheric Administration (NOAA), Department of Commerce, under grant number 40AANR902932, through the Office of Undersea Research, and in part by the Diving Equipment Manufacturers Association (DEMA), and in part by the American Academy of Underwater Sciences (AAUS). The U.S. Government is authorized to produce and distribute reprints for governmental purposes notwithstanding the copyright notation that appears above. Opinions presented at the Workshop and in the Proceedings are those of the contributors, and do not necessarily reflect those of the American Academy of Underwater Sciences PROCEEDINGS OF THE AMERICAN ACADEMY OF UNDERWATER SCIENCES BIOMECHANICS OF SAFE ASCENTS WORKSHOP WHOI/MBL Woods Hole, Massachusetts September 25 - 27, 1989 MICHAEL A. LANG GLEN H. EGSTROM Editors American Academy of Underwater Sciences 947 Newhall Street, Costa Mesa, California 92627 U.S.A. An American Academy of Underwater Sciences Diving Safety Publication AAUSDSP-BSA-01-90 CONTENTS Preface i About AAUS ii Executive Summary iii Acknowledgments v Session 1: Introductory Session Welcoming address - Michael A.
    [Show full text]
  • Deep Sea Dive Ebook Free Download
    DEEP SEA DIVE PDF, EPUB, EBOOK Frank Lampard | 112 pages | 07 Apr 2016 | Hachette Children's Group | 9780349132136 | English | London, United Kingdom Deep Sea Dive PDF Book Zombie Worm. Marrus orthocanna. Deep diving can mean something else in the commercial diving field. They can be found all over the world. Depth at which breathing compressed air exposes the diver to an oxygen partial pressure of 1. Retrieved 31 May Diving medicine. Arthur J. Retrieved 13 March Although commercial and military divers often operate at those depths, or even deeper, they are surface supplied. Minimal visibility is still possible far deeper. The temperature is rising in the ocean and we still don't know what kind of an impact that will have on the many species that exist in the ocean. Guiel Jr. His dive was aborted due to equipment failure. Smithsonian Institution, Washington, DC. Depth limit for a group of 2 to 3 French Level 3 recreational divers, breathing air. Underwater diving to a depth beyond the norm accepted by the associated community. Limpet mine Speargun Hawaiian sling Polespear. Michele Geraci [42]. Diving safety. Retrieved 19 September All of these considerations result in the amount of breathing gas required for deep diving being much greater than for shallow open water diving. King Crab. Atrial septal defect Effects of drugs on fitness to dive Fitness to dive Psychological fitness to dive. The bottom part which has the pilot sphere inside. List of diving environments by type Altitude diving Benign water diving Confined water diving Deep diving Inland diving Inshore diving Muck diving Night diving Open-water diving Black-water diving Blue-water diving Penetration diving Cave diving Ice diving Wreck diving Recreational dive sites Underwater environment.
    [Show full text]
  • Theory and Treatment Solo Cave Diving
    Decompression Sickness: Theory and Treatment Solo Cave Diving: Just How Safe Is It? A Few Words About Decompression Schedules Cave Diving Into The Dominican Past Diving Pioneers & Innovators: A Series of In Depth Interviews (Dick Bonin) Issue 8 – September 2012 Contents Editorial Editorial 2 Welcome to the eighth issue of Tech Diving Mag. In this issue, the contributors have, once more, brought together a wealth Decompression Sickness: Theory and Treatment of information, along with some distinctive first hand experiences. The By Bret Gilliam 3 contributors for this issue are world renowned industry professional Bret Gilliam, accomplished diver, instructor trainer and book author Steve Lewis, technical diving instructor Peter Buzzacott (PhD) and Solo Cave Diving: Just How Safe Is It? cave explorer Cristian Pittaro. Get to know more about them and read By Peter Buzzacott 22 their bio at www.techdivingmag.com/contributors.html. As you might know, Tech Diving Mag is based on article contribution A Few Words About Decompression Schedules from the readership. So you’re always welcome to drop me a line if you’re interested in volunteering an article. One more much appreciated By Steve Lewis 29 thing is your photos (even without articles)! For submission guidelines, take a look at www.techdivingmag.com/guidelines.html. Cave Diving Into The Dominican Past Tech Diving Mag is very much your magazine and I am always keen By Cristian Pittaro 37 to have your input. If you want to share your views, drop me a line at [email protected]. Diving Pioneers & Innovators: A Series of In Please visit www.techdivingmag.com/communicate.html to subscribe Depth Interviews (Dick Bonin) to the newsletter in order to be notified when new issues are available for download.
    [Show full text]
  • 6. Altitude Diver
    SDI Standards and Procedures Part 3: SDI Specialty Standards 6. Altitude Diver 6.1 Introduction The purpose of this course is to acquaint a diver with the necessary procedures and knowledge to safely dive at altitudes above sea level. 6.2 Who May Teach An active SDI Instructor or Assistant Instructor that has been certified to teach this specialty. 6.3 Student to Instructor Ratio Academic 1. Unlimited, so long as adequate facility, supplies and time are provided to ensure comprehensive and complete training of the subject matter Confined Water (swimming pool-like conditions) 1. N/A Open Water (ocean, lake, quarry, spring, river or estuary) 1. A maximum of 8 students per instructor; it is the instructor’s discretion to reduce this number as conditions dictate 2. The instructor has the option of adding 2 more students with the assistance of an active assistant instructor or divemaster 3. The total number of students an instructor may have in the water is 12 with the assistance of 2 active assistant instructors or divemasters 6.4 Student Prerequisites 1. SDI Open Water Scuba Diver , SDI Junior Open Water Scuba Diver, or equivalent, or current enrollment in one of those courses 2. Minimum age of 18, 10 with parental consent 6.5 Course Structure and Duration Open Water Execution 1. Two dives are required with complete briefs and debriefs by the instructor 2. Dive plans must include surface interval, maximum no-decompression time, etc. to be figured out and logged Version 0119 37 SDI Standards and Procedures Part 3: SDI Specialty Standards Course Structure 1.
    [Show full text]
  • A Primer for Technical Diving Decompression Theory
    SCUBA AA PPRRIIMMEERR FFOORR TECH TTEECCHHNNIICCAALL DDIIVVIINNGG DDEECCOOMMPPRREESSSSIIOONN PHILIPPINES TTHHEEOORRYY 1 | P a g e ©Andy Davis 2015 www.scubatechphilippines.com Sidemount, Technical & Wreck Guide | Andy Davis First Published 2016 All documents compiled in this publication are open-source and freely available on the internet. Copyright Is applicable to the named authors stated within the document. Cover and logo images are copyright to ScubaTechPhilippines/Andy Davis. Not for resale. This publication is not intended to be used as a substitute for appropriate dive training. Diving is a dangerous sport and proper training should only be conducted under the safe supervision of an appropriate, active, diving instructor until you are fully qualified, and then, only in conditions and circumstances which are as good or better than the conditions in which you were trained. Technical scuba diving should be taught by a specialized instructor with training credentials and experience at that level of diving. Careful risk assessment, continuing education and skill practice may reduce your likelihood of an accident, but are in no means a guarantee of complete safety. This publication assumes a basic understanding of diving skills and knowledge. It should be used to complement the undertaking of prerequisite training on the route to enrolling upon technical diving training. 2 | P a g e ©Andy Davis 2015 www.scubatechphilippines.com This primer on decompression theory is designed as a supplement to your technical diving training. Becoming familiar with the concepts and terms outlined in this document will enable you to get the most out of your theory training with me; and subsequently enjoy safer, more refined dive planning and management in your technical diving activities.
    [Show full text]
  • UVI Scientific Diving Manual
    The University of the Virgin Islands STANDARDS FOR SCIENTIFIC DIVING University of the Virgin Islands – Center for Marine and Enviromental Studies 2 Brewer’s Bay- St. Thomas, Virgin Islands - 00802 CONTENTS Volume 1 ..................................................................................................................................................... 5 Section 1.00 GENERAL POLICY ............................................................................................................ 6 1.10 Scientific Diving Standards .................................................................................................... 6 1.20 Operational Control ................................................................................................................ 7 1.30 Consequence of Violation of Regulations by Scientific Divers ........................................... 10 1.40 Consequences of Violation of Regulations by UVI Divers .................................................. 11 1.50 Record Maintenance ............................................................................................................. 11 Section 2.00 DIVING REGULATIONS FOR SCUBA (OPEN CIRCUIT, COMPRESSED AIR) ....... 12 2.10 Introduction ........................................................................................................................... 12 2.20 Pre-Dive Procedures ............................................................................................................. 12 2.30 Diving Procedures ................................................................................................................
    [Show full text]
  • Decompression-Theory.Pdf
    Decompression Theory An Explanation of Professor A.A. Buehlmann's ZH-L16 Algorithm by Paul Chapman The following is a summary of the decompression algorithm described by Dr A.A. Buehlmann in the fourth Note to new divers and potential edition of his book Tauchmedizin ( new divers: diving medicine ) published in 1995 ( only in German. ) The book contains This information is presented for a considerable amount of other general interest. Don't be scared off information and is published by by what you see here - you don't Springer-Verlag ISBN 3-540-58970­ need to learn any of this to become a 8. Rumor has it that at the time of safe and competent scuba diver. You writing ( November 1999 ) an English will however need to understand translation is being prepared for dive planning. publishing, so hopefully, in due course, this document will become redundant. The algorithm is simply a "recipe" for modeling the behavior of inert gases, which diffuse in and out of our body tissues when breathed under varying pressures. The intention is that if the recipe models the actual processes in our bodies accurately enough, it can be used to plan dives ( and other pressure exposures ) with a view to avoiding decompression sickness. It is important to realize that the model is entirely arbitrary in the sense that it in no way represents the actual physical processes which are taking place, it simply attempt to model the real-life results mathematically. This article is intended mainly as a description of the algorithm, not as a complete description of decompression physiology and therefore mentions only physiology principles relevant to the algorithm.
    [Show full text]
  • Diving Safe Practices Manual
    Diving Safe Practices Manual Underwater Inspection Program U.S. Department of the Interior February 2021 Mission Statements The Department of the Interior conserves and manages the Nation’s natural resources and cultural heritage for the benefit and enjoyment of the American people, provides scientific and other information about natural resources and natural hazards to address societal challenges and create opportunities for the American people, and honors the Nation’s trust responsibilities or special commitments to American Indians, Alaska Natives, and affiliated island communities to help them prosper. The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. Diving Safe Practices Manual Underwater Inspection Program Prepared by R. L. Harris (September 2006) Regional Dive Team Leader and Chair Reclamation Diving Safety Advisory Board Revised by Reclamation Diving Safety Advisory Board (February 2021) Diving Safe Practices Manual Contents Page Contents .................................................................................................................................. iii 1 Introduction .............................................................................................................. 1 1.1 Use of this Manual ............................................................................................. 1 1.2 Diving Safety .....................................................................................................
    [Show full text]
  • American Academy of Underwater Sciences (AAUS) Standards For
    The American Academy of Underwater Sciences STANDARDS FOR SCIENTIFIC DIVING AAUS • 101 Bienville Blvd Dauphin Island, AL 36528 www.aaus.org • [email protected] • 251.591.3775 FOREWORD Since 1951 the scientific diving community has endeavored to promote safe, effective diving through self- imposed diver training and education programs. Over the years, manuals for diving safety have been circulated between organizations, revised and modified for local implementation, and have resulted in an enviable safety record. This document represents the minimal safety standards for scientific diving at the present day. As diving science progresses so shall this standard, and it is the responsibility of every member of the Academy to see that it always reflects state of the art, safe diving practice. American Academy of Underwater Sciences ACKNOWLEDGEMENTS The Academy thanks the numerous dedicated individual and organizational members for their contributions and editorial comments in the production of these standards. Revision History April, 1987 October, 1990 May, 1994 January, 1996 March 1999 Added Sec 7.6.1 Nitrox Diving Guidelines. Revised Appendix 7 and 11. January 2001 Revised Section 1.23.1 DSO Qualifications. Revised Section 5.31.4 Emergency Care Training. Revised Section 6 Medical Standards. Made Sec 7.6.1 Nitrox Diving Guidelines into Section 7. Added Section 8.0 Scientific Aquarium Diving. Moved Section 7.0 to Section 9.0 Other Diving Technologies. April 2002 Removed Appendix 7 AAUS Checkout Dive and Training Evaluation. Revised Section 5.33.3. Revised Section 4.23.2. August 2003 Section 1.27.3 Delete reference to Appendix 9 (checkout dive). Section 1.4 Remove word "waiver".
    [Show full text]
  • Suunto Eon Steel Black User Guide 2.5
    SUUNTO EON STEEL BLACK USER GUIDE 2.5 2021-07-16 Suunto EON Steel Black 1. Intended use...................................................................................................................................................5 2. Safety...............................................................................................................................................................6 3. Getting started.............................................................................................................................................10 3.1. Set up..................................................................................................................................................10 3.2. Display - modes, views, and states............................................................................................10 3.3. Icons.................................................................................................................................................... 11 3.4. Product compatibility..................................................................................................................... 12 4. Features.........................................................................................................................................................13 4.1. Alarms, warnings, and notifications............................................................................................ 13 4.2. Altitude diving..................................................................................................................................15
    [Show full text]