Contrails Forecasting Manual PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Contrails Forecasting Manual PDF full book. Access full book title Contrails Forecasting Manual by United States. Office of the Chief of Naval Operations. Download full books in PDF and EPUB format.
Author: United States. Office of the Chief of Naval Operations
Publisher:
ISBN:
Category : Condensation trails
Languages : en
Pages : 56
Get Book
Book Description
Author: United States. Office of the Chief of Naval Operations
Publisher:
ISBN:
Category : Condensation trails
Languages : en
Pages : 56
Get Book
Book Description
Author: Gruber, Simon
Publisher: KIT Scientific Publishing
ISBN: 3731508966
Category : Cirrus clouds
Languages : en
Pages : 284
Get Book
Book Description
Author: Alexander Dean Naiman
Publisher: Stanford University
ISBN:
Category :
Languages : en
Pages : 201
Get Book
Book Description
Aircraft emissions lead to contrails and change cloud coverage in the upper troposphere/lower stratosphere, but their quantitative impact on climate is highly uncertain. As environmental policy turns toward regulating anthropogenic climate change components, it will be necessary to improve quantification of the climate impacts of aviation. Toward this end, we present two models of aircraft emissions. The first model is a large eddy simulation (LES) with three-dimensional, eddy-resolving flow physics and ice deposition/sublimation microphysics. Modeled ice properties, cloud optical depths, and contrail width growth rates are consistent with observational field studies. A series of sensitivity cases shows the effect of various parameters over twenty minutes of simulation time. The analysis focuses on properties such as contrail optical depth and cross-sectional width that are relevant to climate impacts. Vertical wind shear is found to have the strongest effect on these properties through the kinematic spreading of the contrail. In cases with no shear, optical depth is most sensitive to aircraft type and ambient humidity. One model parameter, the effective emission index of ice crystals, is also found to affect optical depth. A subset of the LES cases is run for two hours of simulation time to approach the scale of dynamical time steps modeled by global climate simulations. These cases use more realistic ice microphysics, including sedimentation, and forced ambient turbulence, both of which are processes that control contrail development at late times. The second model is a simple, low cost parameterization of aircraft plume dynamics, intended to be used as a subgrid plume model (SPM) within large scale atmospheric simulations. The SPM provides basic plume cross-section time advancement that has been used as a dilution model within a coupled global atmosphere-ocean climate simulation to study the effects of aviation on air quality and climate. Comparison to the twenty-minute and two-hour LES results demonstrates that the SPM captures important plume development characteristics under the effect of vertical shear and atmospheric turbulence.
Author: Surabhi Naik
Publisher: Booksclinic Publishing
ISBN: 9391389260
Category : Self-Help
Languages : en
Pages : 230
Get Book
Book Description
Author: United States Air Force Academy
Publisher:
ISBN:
Category : Aeronautics, Military
Languages : en
Pages :
Get Book
Book Description
Author: Trey Brandt
Publisher: Acacia Publishing
ISBN: 096711876X
Category : Aircraft accidents
Languages : en
Pages : 165
Get Book
Book Description
This book details the actual accounts of 20 military aircraft crashes that occurred in the remote deserts and rugged highlands of Arizona. Each story looks into the events leading up to and after the crash, and describes what is left at the site today. These facts are corroborated by newly-declassified, old government documents, personal visits to the crash sites, and interviews with surviving crewman and families.
Author: Jerry E. Smith
Publisher: Adventures Unlimited Press
ISBN: 9781931882606
Category : History
Languages : en
Pages : 426
Get Book
Book Description
Hundreds of environmental and weather modifying technologies have been patented in the United States alone, and hundreds more are being developed in civilian, academic, military and quasi-military laboratories around the world at this moment. This book lays bare the grim facts of who is doing it and why.
Author: George J Marrett
Publisher: Naval Institute Press
ISBN: 161251426X
Category : History
Languages : en
Pages : 263
Get Book
Book Description
In Contrails over the Mojave George Marrett takes off where Tom Wolfe’s The Right Stuff ended in 1963. Marrett started the Air Force Test Pilot School at Edwards AFB only two weeks after the school’s commander, Col. Chuck Yeager, ejected from a Lockheed NF-104 trying to set a world altitude record. He describes life as a space cadet experiencing 15 Gs in a human centrifuge, zero-G maneuvers in a KC-135 “Vomit Comet,” and a flight to 80,000 feet in the F-104A Starfighter. After graduating from Yeager’s “Charm School,” he was assigned to the Fighter Branch of Flight Test Operations, where he flew the latest fighter aircraft and chased other test aircraft as they set world speed and altitude records. Marrett takes readers into the cockpit as he “goes vertical” in a T-38 Talon, completes high-G maneuvers in an F-4C Phantom, and conducts wet-runway landing tests in the accident-prone F-111A Aardvark. He writes about Col. “Silver Fox” Stephens setting a world speed record in the YF-12 Blackbird and Bob Gilliland testing speed stalls in the SR-71 spy plane, but he also relives stories of crashes that killed test pilot friends. He recounts dead-sticking a T-38 to a landing on Rogers Dry Lake after a twin-engine failure and conducting dangerous tail hook barrier testing in a fighter jet without a canopy. A mysterious UFO sighting in the night sky above the Mojave Desert, known as “The Edwards Encounter,” also receives Marrett’s attention. Whether the author is assessing a new aircraft’s performance or describing the experiences of test pilots as they routinely faced the possibility of death, this look at the golden age of flight testing both thrills and informs.
Author: Lewis McKinley Vaughn
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
Get Book
Book Description
Author: H.E Schwarz
Publisher: Springer Science & Business Media
ISBN: 9401701253
Category : Science
Languages : en
Pages : 304
Get Book
Book Description
The effects of light pollution on flora, fauna -including humans and their widely varying night-time activities- are often subtle and need extensive field studies to be quantified in a sensible manner. Some of the highlights were: The presentation of the 1st world atlas of artificial night sky brightness (Cinzano et al.); the article by the International Darksky Association on their world-wide efforts to curb light pollution (Alvarez del Castillo et al.); the laws controlling light pollution implemented in Spain (Diaz et al.) and Chile (Sanhueza et al.), an overview of the work on radio frequency protection of sites (Cohen et al.) and the excellent introduction to the topic from the Chilean point of view (Daud). Related topics in the book are light pollution education, aircraft contrails, space advertising (with an added document provided by the relevant UN commission), and an experiment on involving the population of an entire country in measuring sky brightness, by using the internet and the media. The text is aimed at professionals from a wide range of disciplines related to lighting and its effects on the night-time environment in the broadest sense of the word. Lay persons interested in this emerging multi-disciplinary field can also find much of interest in this book.
