Altitude: What's in the Air?
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Fog and Low Clouds As Troublemakers During Wildfi Res
When Our Heads Are in the Clouds Sometimes water droplets do not freeze in below- Detecting fog from space Up to 60,000 ft (18,000m) freezing temperatures. This happens if they do not have Weather satellites operated by the National Oceanic The fog comes a surface (like a dust particle or an ice crystal) upon and Atmospheric Administration (NOAA) collect data on on little cat feet. which to freeze. This below-freezing liquid water becomes clouds and storms. Cirrus Commercial Jetliner “supercooled.” Then when it touches a surface whose It sits looking (36,000 ft / 11,000m) temperature is below freezing, such as a road or sidewalk, NOAA operates two different types of satellites. over harbor and city Geostationary satellites orbit at about 22,236 miles Breitling Orbiter 3 the water will freeze instantly, making a super-slick icy on silent haunches (34,000 ft / 10,400m) Cirrocumulus coating on whatever it touches. This condition is called (35,786 kilometers) above sea level at the equator. At this and then moves on. Mount Everest (29,035 ft / 8,850m) freezing fog. altitude, the satellite makes one Earth orbit per day, just Carl Sandburg Cirrostratus as Earth rotates once per day. Thus, the satellite seems to 20,000 feet (6,000 m) Cumulonimbus hover over one spot below and keeps its “birds’-eye view” of nearly half the Earth at once. Altocumulus The other type of NOAA satellites are polar satellites. Their orbits pass over, or nearly over, the North and South Clear and cloudy regions over the U.S. -
Human Physiology an Integrated Approach
Gas Exchange and Transport Gas Exchange in the Lungs and Tissues 18 Lower Alveolar P Decreases Oxygen Uptake O2 Diff usion Problems Cause Hypoxia Gas Solubility Aff ects Diff usion Gas Transport in the Blood Hemoglobin Binds to Oxygen Oxygen Binding Obeys the Law of Mass Action Hemoglobin Transports Most Oxygen to the Tissues P Determines Oxygen-Hb Binding O2 Oxygen Binding Is Expressed As a Percentage Several Factors Aff ect Oxygen-Hb Binding Carbon Dioxide Is Transported in Three Ways Regulation of Ventilation Neurons in the Medulla Control Breathing Carbon Dioxide, Oxygen, and pH Infl uence Ventilation Protective Refl exes Guard the Lungs Higher Brain Centers Aff ect Patterns of Ventilation The successful ascent of Everest without supplementary oxygen is one of the great sagas of the 20th century. — John B. West, Climbing with O’s , NOVA Online (www.pbs.org) Background Basics Exchange epithelia pH and buff ers Law of mass action Cerebrospinal fl uid Simple diff usion Autonomic and somatic motor neurons Structure of the brain stem Red blood cells and Giant liposomes hemoglobin of pulmonary Blood-brain barrier surfactant (40X) From Chapter 18 of Human Physiology: An Integrated Approach, Sixth Edition. Dee Unglaub Silverthorn. Copyright © 2013 by Pearson Education, Inc. All rights reserved. 633 Gas Exchange and Transport he book Into Thin Air by Jon Krakauer chronicles an ill- RUNNING PROBLEM fated trek to the top of Mt. Everest. To reach the summit of Mt. Everest, climbers must pass through the “death zone” T High Altitude located at about 8000 meters (over 26,000 ft ). Of the thousands of people who have attempted the summit, only about 2000 have been In 1981 a group of 20 physiologists, physicians, and successful, and more than 185 have died. -
Everest and Oxygen—Ruminations by a Climber Anesthesiologist by David Larson, M.D
Everest and Oxygen—Ruminations by a Climber Anesthesiologist By David Larson, M.D. Gaining Altitude and Losing Partial Pressure with Dave and Samantha Larson Dr. Dave Larson is an obstetric anesthesiologist who practices at Long Beach Memorial Medical Center, and his daughter Samantha is a freshman at Stanford University. Together they have successfully ascended the Seven Summits, the tallest peaks on each of the seven continents, a feat of mountaineering postulated in the 1980s by Richard Bass, owner of the Snowbird Ski Resort in Utah. Bass accomplished it first in 1985. Samantha Larson, who scaled Everest in May 2007 (the youngest non-Sherpa to do so) and the Carstensz Pyramid in August 2007, is at age 18 the youngest ever to have achieved this feat. Because of varying definitions of continental borders based upon geography, geology, and geopolitics, there are nine potential summits, but the Seven Summits is based upon the American and Western European model. Reinhold Messner, an Italian mountaineer known for ascending without supplemental oxygen, postulated a list of Seven Summits that replaced a mountain on the Australian mainland (Mount Kosciuszko—2,228 m) with a higher peak in Oceania on New Guinea (the Carstensz Pyramid—4,884 m). The other variation in defining summits is whether you define Mount Blanc (4,808 m) as the highest European peak, or use Mount Elbrus (5,642 m) in the Caucasus. Other summits include Mount Kilimanjaro in Kenya, Africa (5,895 m), Vinson Massif in Antarctica (4,892 m), Mount Everest in Asia (8,848 m), Mount McKinley in Alaska, North America (6,194 m), and Mount Aconcagua in Argentina, South America (6,962 m). -
Aviation Glossary
AVIATION GLOSSARY 100-hour inspection – A complete inspection of an aircraft operated for hire required after every 100 hours of operation. It is identical to an annual inspection but may be performed by any certified Airframe and Powerplant mechanic. Absolute altitude – The vertical distance of an aircraft above the terrain. AD - See Airworthiness Directive. ADC – See Air Data Computer. ADF - See Automatic Direction Finder. Adverse yaw - A flight condition in which the nose of an aircraft tends to turn away from the intended direction of turn. Aeronautical Information Manual (AIM) – A primary FAA publication whose purpose is to instruct airmen about operating in the National Airspace System of the U.S. A/FD – See Airport/Facility Directory. AHRS – See Attitude Heading Reference System. Ailerons – A primary flight control surface mounted on the trailing edge of an airplane wing, near the tip. AIM – See Aeronautical Information Manual. Air data computer (ADC) – The system that receives and processes pitot pressure, static pressure, and temperature to present precise information in the cockpit such as altitude, indicated airspeed, true airspeed, vertical speed, wind direction and velocity, and air temperature. Airfoil – Any surface designed to obtain a useful reaction, or lift, from air passing over it. Airmen’s Meteorological Information (AIRMET) - Issued to advise pilots of significant weather, but describes conditions with lower intensities than SIGMETs. AIRMET – See Airmen’s Meteorological Information. Airport/Facility Directory (A/FD) – An FAA publication containing information on all airports, seaplane bases and heliports open to the public as well as communications data, navigational facilities and some procedures and special notices. -
DEATH ZONE FREERIDE About the Project
DEATH ZONE FREERIDE About the project We are 3 of Snow Leopards, who commit the hardest anoxic high altitude ascents and perform freeride from the tops of the highest mountains on Earth (8000+). We do professional one of a kind filming on the utmost altitude. THE TRICKIEST MOUNTAINS ON EARTH NO BOTTLED OXYGEN CHALLENGES TO HUMAN AND NATURE NO EXTERIOR SUPPORT 8000ERS FREERIDE FROM THE TOPS MOVIES ALONE WITH NATURE FREERIDE DESCENTS 5 3 SNOW LEOS Why the project is so unique? PROFESSIONAL FILMING IN THE HARDEST CONDITIONS ❖ Higher than 8000+ m ❖ Under challenging efforts ❖ Without bottled oxygen & exterior support ❖ Severe weather conditions OUTDOOR PROJECT-OF-THE-YEAR “CRYSTAL PEAK 2017” AWARD “Death zone freeride” project got the “Crystal Peak 2017” award in “Outdoor project-of-the-year” nomination. It is comparable with “Oscar” award for Russian outdoor sphere. Team ANTON VITALY CARLALBERTO PUGOVKIN LAZO CIMENTI Snow Leopard. Snow Leopard. Leader The first Italian Snow Leopard. MC in mountaineering. Manaslu of “Mountain territory” club. Specializes in a ski mountaineering. freeride 8163m. High altitude Ski-mountaineer. Participant cameraman. of more than 20 high altitude expeditions. Mountains of the project Manaslu Annapurna Nanga–Parbat Everest K2 8163m 8091m 8125m 8848m 8611m The highest mountains on Earth ❖ 8027 m Shishapangma ❖ 8167 m Dhaulagiri I ❖ 8035 m Gasherbrum II (K4) ❖ 8201 m Cho Oyu ❖ 8051 m Broad Peak (K3) ❖ 8485 m Makalu ❖ 8080 m Gasherbrum I (Hidden Peak, K5) ❖ 8516 m Lhotse ❖ 8091 m Annapurna ❖ 8586 m Kangchenjunga ❖ 8126 m Nanga–Parbat ❖ 8614 m Chogo Ri (K2) ❖ 8156 m Manaslu ❖ 8848 m Chomolungma (Everest) Mountains that we climbed on MANASLU September 2017 The first and unique freeride descent from the altitude 8000+ meters among Russian sportsmen. -
Solar Energy Generation Model for High Altitude Long Endurance Platforms
Solar Energy Generation Model for High Altitude Long Endurance Platforms Mathilde Brizon∗ KTH - Royal Institute of Technology, Stockholm, Sweden For designing and evaluating new concepts for HALE platforms, the energy provided by solar cells is a key factor. The purpose of this thesis is to model the electrical power which can be harnessed by such a platform along any flight trajectory for different aircraft designs. At first, a model of the solar irradiance received at high altitude will be performed using the solar irradiance models already existing for ground level applications as a basis. A calculation of the efficiency of the energy generation will be performed taking into account each solar panel's position as well as shadows casted by the aircraft's structure. The evaluated set of trajectories allows a stationary positioning of a hale platform with varying wind conditions, time of day and latitude for an exemplary aircraft configuration. The qualitative effects of specific parameter changes on the harnessed solar energy is discussed as well as the fidelity of the energy generation model results. Nomenclature δ Solar declination ({) EQE Quantum efficiency (%) η Efficiency (%) hg Altitude of the aircraft (m) ◦ Γ Day angle ( ) hO3 Height of max ozone concentration(m) ◦ −2 −1 λg Longitude aircraft ( ) Id Direct irradiance (W:m .µm ) ◦ −2 −1 ! Hour angle ( ) Is Diffuse irradiance (W:m .µm ) ◦ −2 −1 φg Latitude of the aircraft ( ) Itot Total irradiance (W:m .µm ) ◦ −1 ◦ τ Rayleigh optical depth ({) kPmax;T Temperature Coefficient (%: C ) 2 A Solar cell -
1 the Atmosphere of Pluto As Observed by New Horizons G
The Atmosphere of Pluto as Observed by New Horizons G. Randall Gladstone,1,2* S. Alan Stern,3 Kimberly Ennico,4 Catherine B. Olkin,3 Harold A. Weaver,5 Leslie A. Young,3 Michael E. Summers,6 Darrell F. Strobel,7 David P. Hinson,8 Joshua A. Kammer,3 Alex H. Parker,3 Andrew J. Steffl,3 Ivan R. Linscott,9 Joel Wm. Parker,3 Andrew F. Cheng,5 David C. Slater,1† Maarten H. Versteeg,1 Thomas K. Greathouse,1 Kurt D. Retherford,1,2 Henry Throop,7 Nathaniel J. Cunningham,10 William W. Woods,9 Kelsi N. Singer,3 Constantine C. C. Tsang,3 Rebecca Schindhelm,3 Carey M. Lisse,5 Michael L. Wong,11 Yuk L. Yung,11 Xun Zhu,5 Werner Curdt,12 Panayotis Lavvas,13 Eliot F. Young,3 G. Leonard Tyler,9 and the New Horizons Science Team 1Southwest Research Institute, San Antonio, TX 78238, USA 2University of Texas at San Antonio, San Antonio, TX 78249, USA 3Southwest Research Institute, Boulder, CO 80302, USA 4National Aeronautics and Space Administration, Ames Research Center, Space Science Division, Moffett Field, CA 94035, USA 5The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA 6George Mason University, Fairfax, VA 22030, USA 7The Johns Hopkins University, Baltimore, MD 21218, USA 8Search for Extraterrestrial Intelligence Institute, Mountain View, CA 94043, USA 9Stanford University, Stanford, CA 94305, USA 10Nebraska Wesleyan University, Lincoln, NE 68504 11California Institute of Technology, Pasadena, CA 91125, USA 12Max-Planck-Institut für Sonnensystemforschung, 37191 Katlenburg-Lindau, Germany 13Groupe de Spectroscopie Moléculaire et Atmosphérique, Université Reims Champagne-Ardenne, 51687 Reims, France *To whom correspondence should be addressed. -
Deadly High Altitude Pulmonary Disorders: Acute Mountain Sickness
Research Article Int J Pul & Res Sci Volume 1 Issue 1 - April 2016 Copyright © All rights are reserved by Michael Obrowski DOI : 10.19080/IJOPRS.2016.01.555553 Deadly High Altitude Pulmonary Disorders: Acute Mountain Sickness (AMS); High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE): A Clinical Review Michael Obrowski1* and Stephanie Obrowski2 1Doctor of Medicine (M.D. – 2000); Assistant Professor of Anatomy; CEO, Chief Physician and Surgeon of Wilderness Physicians, European Union 2Doctor of Medicine (M.D. – 2019); Medical University of Łódź; President of Wilderness Physicians, European Union Submission: January 26, 2016; Published: April 15, 2016 *Corresponding author: Michael Obrowski, M.D., Doctor of Medicine (M.D. – 2000); Assistant Professor of Anatomy; CEO, Chief Physician and Surgeon of Wilderness Physicians, European Union, 43C Żeligowskiego Street, #45, Łódź, Poland 90-644, Email: Abstract Acute Mountain Sickness (AMS); High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE). These three disorders, withMountain relatively Sickness, unimportant also smallcalled variationsHigh Altitude seen Sickness, in some isPulmonology specifically aTextbooks, triad of different because disorders, these are inso orderserious, of increasingthey are all seriousness: potentially deadly pulmonary disorders and we will discuss these three major, deadly disorders. Each one, starting with AMS, can progress rapidly to HAPE and then HACE. The two authors of this article have over half a century of high altitude mountaineering experience. They have also alsohad anddisaster still domedicine. have, for Since the lastspring twenty is rapidly years, approaching an NGO, Non-Profit and many Medical “weekend Organization backpackers” (Wilderness will start Physicians going into www.wildernessphysicians. -
Outcomes from the 2015 Round Table on Sepsis
The official daily newsletter of the 35th ISICEM Thursday 19 March 2015 Day 3 Outcomes from the 2015 Round Table on sepsis uring the opening session on Tues- day morning, Simon Finfer (Royal North Shore Hospital of Sydney and Sydney Adventist Hospital, Sydney, Australia) was joined by Steven DOpal (Memorial Hospital of Rhode Island, RI, USA) to summarize the major outcomes of the two-day Round Table discussion “This will be a on sepsis. This was a joint conference significant part of our conducted between ISICEM and the Inter- national Sepsis Forum, with representa- research agenda in the tives from every continent highlighting the future – making sure global nature of the problem. Beginning by addressing the current that our patients are state of knowledge in the epidemiology of doing well after they sepsis, Professor Finfer noted that we know leave the hospital.” surprising little, but that obtaining this data will be crucial if any meaningful strategy is Steven Opal to be developed: “To some degree we have data from developed countries, possibly far less than you would expect or think,” he said. “But there are certainly places in, notably, Africa, where we are completely devoid of data.” The reasons for this lack of data can in part be understood by an appreciation of how patient data are currently characterized and treated, with the Global Burden of Disease Project emerging as a central player in generating evidence and guiding is surprising because we believe that sepsis kills one comes into your ICU with community-acquired global health policy. more people than prostate cancer, breast cancer, pneumonia, you treat the pneumonia; maybe they “The only reference to sepsis in these sta- and many other high profile diseases. -
Mount Everest's Death Zone
Mount Everest’s Death Zone Climate change and crowds of climbers are making the world’s tallest mountain more dangerous than ever Mara Grunbaum ast year, 73-year-old Tamae Watanabe of Japan became the oldest woman to climb Mount Everest, the world’s tallest mountain. In L 2010, 13-year-old Jordan Romero of California became the youngest to reach the top. All sorts of people of varying abilities scale the massive mountain in Asia these days. That may not be a good thing—for Everest or the climbers. Last year, more than 500 people reached the top of the Himalayan mountain, which towers 8,850 meters (29,035 feet) above sea level. Hundreds more climbed partway up. While it’s a great achievement to scale Everest, it can sometimes cause problems for the climbers and the mountain itself. Everest is changing. Warming Up Why is Everest becoming more dangerous to climb? One reason is changes in its environment. Much of the mountain is covered in huge sheets of ice called glaciers. Lately, warmer temperatures in the region have been melting these glaciers. Some places that used to be covered in ice year-round are now completely ice-free in the summer. Shrinking glaciers put climbers at risk. As glaciers melt, snow, ice, and rock are more likely to tumble down the mountain in huge avalanches. These snowslides can injure or even kill climbers. “As it gets warmer, more debris tends to fall down,” says American climbing guide Freddie Wilkinson. He’s one of a number of people who think that climbing Everest is becoming too risky. -
Into the Clouds
Into the Clouds ALSO BY TOD OLSON THE LOST® SERIES: Lost in the Pacific, 1942 Lost in Outer Space Lost in the Amazon Lost in the Antarctic Into the Clouds The Race to Climb the World’s Most Dangerous Mountain TOD OLSON New York Copyright © 2020 by Tod Olson All rights reserved. Published by Scholastic Focus, an imprint of Scholastic Inc., Publishers since 1920. SCHOLASTIC, SCHOLASTIC FOCUS, and associated logos are trademarks and/ or registered trademarks of Scholastic Inc. The publisher does not have any control over and does not assume any responsibility for author or third- party websites or their content. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without written permission of the publisher. For information regarding permission, write to Scholastic Inc., Attention: Permissions Department, 557 Broadway, New York, NY 10012. Library of Congress Cataloging-in-Publication Data Names: Olson, Tod, author. Title: Into the clouds : the race to climb the world’s most dangerous mountain / Tod Olson. Description: New York, NY : Scholastic Focus, 2020. | Audience: Age 10-14. Identifiers: LCCN 2019002127 (print) | LCCN 2019014682 (ebook) | ISBN 9781338207378 (E-book) | ISBN 9781338207361 (hardcover : alk. paper) Subjects: LCSH: K2 (Pakistan : Mountain)—Juvenile literature. | Mountaineering—Pakistan—K2 (Mountain)—Juvenile literature. Classification: LCC GB546.K13 (ebook) | LCC GB546.K13 O55 2020 (print) | DDC -
Human Factors in High-Altitude Mountaineering
Journal of Human Performance in Extreme Environments Volume 12 Issue 1 Article 1 Published online: 5-8-2015 Human Factors in High-Altitude Mountaineering Christopher D. Wickens Alion Science and Technology, [email protected] John W. Keller Alion Science and Technology, [email protected] Christopher Shaw Alion Science and Technology, [email protected] Follow this and additional works at: https://docs.lib.purdue.edu/jhpee Part of the Industrial and Organizational Psychology Commons Recommended Citation Wickens, Christopher D.; Keller, John W.; and Shaw, Christopher (2015) "Human Factors in High-Altitude Mountaineering," Journal of Human Performance in Extreme Environments: Vol. 12 : Iss. 1 , Article 1. DOI: 10.7771/2327-2937.1065 Available at: https://docs.lib.purdue.edu/jhpee/vol12/iss1/1 This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact [email protected] for additional information. This is an Open Access journal. This means that it uses a funding model that does not charge readers or their institutions for access. Readers may freely read, download, copy, distribute, print, search, or link to the full texts of articles. This journal is covered under the CC BY-NC-ND license. Human Factors in High-Altitude Mountaineering Christopher D. Wickens, John W. Keller, and Christopher Shaw Alion Science and Technology Abstract We describe the human performance and cognitive challenges of high altitude mountaineering. The physical (environmental) and internal (health) stresses are first described, followed by the motivational factors that lead people to climb. The statistics of mountaineering accidents in the Himalayas and Alaska are then described.