Wyniki wyszukiwania - BazTech

1

Dron jako sojusznik w operacjach lotniskowych : integracja operacji dronów na lotniskach

Leśnikowski Władysław

Wiedza Obronna

|

2023

|

nr 3

PL

W artykule została poruszona problematyka bezzałogowych statków powietrznych i ich wykorzystania w operacjach lotniskowych. Obsługa statków powietrznych przez drony w przeprowadzaniu inspekcji, konserwacji posiada wiele czynników mających wpływ na jego jakość, bezpieczeństwo, czas i oszczędności. Drony w przeprowadzaniu inspekcji statków powietrznych, infrastruktury lotniskowej mają wpływ w procesie ograniczania ryzyka wpływu człowieka na obsługę techniczną statków powietrznych, wyeliminowania awarii czynnika ludzkiego oraz zmniejszenia ryzyka utraty zdrowia czy życia w czasie wykonywania tych procedur. Autor omawia również w artykule wykorzystanie dronów w procesie obsługi technicznej, napraw i remontów samolotów komercyjnych, zarządzaniu ciągłością do lotu. Poruszony został również temat koncepcje systemu ”Smart Hangar”. Zidentyfikowane zostały zagrożenia związane z wykorzystaniem dronów w procesie utrzymania ruchu, zagrożenia związane z tą działalnością.

EN

The article discusses the issue of unmanned aircraft and their use in airport operations. The operation of aircraft by drones in carrying out inspections and maintenance has many factors affecting its quality, safety, time and savings. Drones in the inspection of aircraft and airport infrastructure have an impact in the process of reducing the risk of human influence on the technical maintenance of aircraft, eliminating the failure of the human factor and reducing the risk of loss of health or life during the performance of these procedures. The author also discusses in the article the use of drones in the process of maintenance, repair and overhaul of commercial aircraft, and flight continuity management. The concept of the "Smart Hangar" system was also discussed. Threats related to the use of drones in the maintenance process and the risks associated with this activity have been identified.

2

Review of risk assessment tools and techniques for selected aspects of functioning aerodrome operator

Marzec Dominika, Fellner Radosław

Prace Naukowe Politechniki Warszawskiej. Transport

|

2023

|

z. 136

5--22

EN

The safety risk management is crucial for aviation industry companies. Each of aviation organizations (i.e. airlines, aerodrome operators, General Aviation entities, etc.) has different specificity and deals with different factors. Numerous studies on safety risk management have been conducted, however authors of presented paper have seen a need to review one of the its’ numerous aspect - the risk assessment from the perspective of aerodrome operator. The variety of risk assessment tools and techniques gives many possibilities, but can also cause disarray if rules or selection criteria for their use have not been developed. The aim of the article is to present the risk assessment tools and techniques, that may be the most beneficial and useful for selected safety aspects of aerodrome functioning. For this purpose, existing risk assessment techniques and tools were collected and briefly reviewed, as well as their usefulness for the aerodrome operator was verified according to the proposed issues related to the safety of aerodrome operations. Analysis have shown that a manual summarizing and reviewing risk assessment tools and techniques could be useful for aerodrome operators.

3

Methodology for the Performance Evaluation of Airspace Use by Military Aviation

Markiewicz Telesfor Marek

Safety & Defense

|

2022

|

2

9--17

EN

This paper aims to present the evolution of methods for measuring and evaluating the effectiveness of flexible use of airspace by military aviation in terms of the air navigation services performance scheme in European Union countries. Airspace management, which is a part of air traffic management, takes into account the operational needs of civil and military aviation without favouring either of them. However, some military aviation operations cannot be safely interconnected with civil aviation operations as they differ in nature and purpose. There is, therefore, a requirement to set aside airspace for exclusive military use to accommodate such operations. Military aviation must also use airspace in the most efficient and effective manner when conducting its operations. The existing situation provides a rationale for improving the methodology for assessing the efficiency of airspace use by military aviation, regardless of the requirements of the performance scheme for air navigation services intended for civil aviation. This article reviews the development of performance assessment methodologies in the field in question. The findings show considerable variation in the methods used, suggesting the need to establish standard procedures for collecting and processing performance data related to airspace used by military aviation.

4

An Analysis of Rope Tension Forces While Towing a Sailplane

Wojnar Tomasz, Stołtny Bartosz

Safety & Defense

|

2022

|

2

27--35

EN

This article presents a model of a rope, which is an example of a rope used when a glider takes off by means of towing with the use of an aerial winch, winding the rope attached to the glider. The finite element method used in MESH software was used for the model. This method allows us to take into account not only bending flexibility but also longitudinal flexibility. Such an approach to the subject of simulation allows for obtaining results relatively quickly while maintaining an appropriate level of accuracy. This allows for further exploration of the phenomena occurring in the glider towing process. The construction of a fast algorithm enables its implementation in the glider towing process control systems. The aim of this article is to present numerical analyzes of commonly used tow ropes. This paper presents the results of the analysis of the synthetic rope commonly used in gliding, comparing the obtained results with the classic steel rope.

5

Key challenges of global airport security systems in context of current threats and available technological solutions

Paszukow Bohdan, Nowacki Gabriel

Rocznik Bezpieczeństwa Morskiego

|

2022

|

XVI

1--22

EN

The aim of this paper is to highlight some key challenges of global airport security systems in context of current threats, especially Covid-19 and available technological solutions. The airport environment will change significantly. Combined with the growing expectations of passengers and the need to improve security in the face of a changing global threat, this new system will lead to changes in many procedures (both in context of security and protection of airport critical environment as well as from perspective of securing the airport public areas and even health protection of overall airport community). Due to new types of threats and a significant increase in the number of passengers during pre-Covid-19 era, new technological solutions were introduced, affecting the security of restricted and public spaces. This problem, due to its complexity and unpredictability, still leaves a lot of room for improvement and increasing their effectiveness. Especially taking into consideration current pandemic scenarios and context of safety precautions and social distancing, the role of new technologies will be crucial, in order to re-build trust amongst air travellers and to ensure consistency within general aviation security measures. The paper takes into account results of selected researches.

6

The effect of the flight experience on the visual behavior of pilots – a preliminary study

Mika Barbara, Grzegorczyk Krzysztof, Galant-Gołębiewska Marta, Maciejewska Marta

Journal of KONBiN

|

2022

|

Vol. 52, iss. 3

53--76

EN

The eye tracking technique is increasingly used in the context of examining the method of processing visual information from instruments and displays located in the cockpit of an airplane. An important aspect is monitoring the pilot's visual behavior in the most difficult phase of the flight, which is the landing of the plane. Six people participated in the research, divided into three groups according to their experience. The subjects performed three landing approaches in various weather conditions. During the study, the visual behavior of the participants was recorded using the Pupil Invisible eye tracker. Based on the analysis of heatmaps and areas of interest, differences in the distribution and number of fixations in the visual field between pilots with different aviation experience were shown.

PL

Technika eye trackingu znajduje coraz szersze zastosowanie w kontekście badania sposobu przetwarzania informacji wizualnych z przyrządów i wyświetlaczy umieszczonych w kokpicie samolotu. Istotnym aspektem staje się monitorowanie zachowania wzrokowego pilota w najtrudniejszej fazie lotu, jaką jest lądowanie samolotu. W badaniach wzięło udział sześć osób, podzielonych względem doświadczenia na trzy grupy. Badani wykonywali trzy podejścia do lądowania w zróżnicowanych warunkach atmosferycznych. Podczas badania rejestrowano zachowanie wzrokowe uczestników przy wykorzystaniu eye trackera Pupil Invisible. Na podstawie analizy map cieplnych oraz obszarów zainteresowania wykazane zostały różnice w rozmieszczeniu oraz liczbie fiksacji w polu wizualnym pomiędzy pilotami o zróżnicowanym doświadczeniu lotniczym.

7

Using Heinrich’s (Bird’s) Pyramid of Adverse Events to Assess the Level of Safety in an Airline

Maklakovs Juris, Bitins Aleksandrs, Bogdane Ruta, Shestakov Vladimir

Transactions on Aerospace Research

|

2021

|

Nr 4 (265)

11--20

EN

One of the key concepts in matters of flight safety is that of special (abnormal) situations, with airworthiness regulation and certification of aviation equipment being based on this concept. At the same time, one is forced to admit that today there is no explicit interpretation of the standardized traits of special situations, nor are they not fully elucidated in the scientific literature. In this article we propose a pyramidbased approach to interpreting special (abnormal) in-flight situations, which allows for risk assessment not using risk matrices, but instead relying only on the probabilistic characteristics of the occurrence of events. Using the presence of a causal relationship between the layers of the pyramid, we propose an algorithm for the transition of varying degrees of danger of special situations. This algorithm can be used to develop an on-board device that informs the pilot about the dynamics of transitions from one situation to another, representing each emergency situation in a certain color.

PL

Jednym z kluczowych pojęć w obszarze bezpieczeństwa lotów, na którym opierają się przepisy zdatności do lotu i certyfikacja wyposażenia lotniczego, jest pojęcie sytuacji specjalnych (anormalnych). Z drugiej jednak strony obecnie nie ma jednoznacznej interpretacji standardowych cech sytuacji specjalnych, ani nie są one w pełni wyjaśnione w literaturze naukowej. W niniejszym artykule proponowano piramidalne podejście do interpretacji sytuacji specjalnych (anormalnych) w locie, które pozwala na ocenę ryzyka bez użycia macierzy ryzyka, a jedynie w oparciu o probabilistyczną charakterystykę występowania zdarzeń. Wykorzystując fakt, że zachodzi związek przyczynowo-skutkowy pomiędzy warstwami piramidy, proponujemy algorytm identyfikujący przejścia z jednego stopnia zagrożenia sytuacją specjalną do innego stopnia takiego zagrożenia. Algorytm ten może być wykorzystany do opracowania urządzenia pokładowego, które ma za zadanie informować pilota o dynamice przejść z jednej sytuacji do drugiej i sygnalizować każdą sytuację awaryjną określonym kolorem.

8

Security of the 2014 Winter Olympics in Sochi

Radomyski Adam

Safety & Defense

|

2021

|

1

93--106

EN

Given the fact that major sporting events such as the Olympic Games attract attention all over the world, the aspect of their security has become even more important, especially after the terrorist attacks of September 11, 2001. Organizers of this type of mass sports event treat the issue of safety as top priority. The paper examines the empirical data from scientific publications, press releases and formal government documents that pertain to Russia's preparation to properly secure the 2014 Sochi Winter Olympics in terms of security. The aim of this article was to identify the threats to the Winter Olympics in Sochi and to characterize the security system organized by Russia against this background. The conducted research confirmed that the greatest threat in Russia was the high activity of national liberation groups, fighters and terrorists from the Sochi area, which clearly intensified in the period preceding the Olympics. In addition, the security system created by Russia involved many different state bodies, including agencies, police and law enforcement services, and the army. Based on the research, it can be concluded that the security system created in Sochi may be a good example for other countries that will try to organize the Olympic Games in the future.

9

Lone Wolves as a Threat to Aviation Security: Typology, Tactics, Development Prospects

Posłuszna Elżbieta

Safety & Defense

|

2021

|

1

83--91

EN

This paper discusses the threats related to the development of the phenomenon known as lone wolf violence. Its main goal is to analyze lone wolves' activities, particularly their tactics in carrying out actions that pose a threat to aviation safety. The primary method used for the main argument of the paper, interdisciplinary modeling of the determinants of violence, allows for formulating forecasts on the development of lone wolves phenomenon in the most important context for those predictions, i.e., changeability of used means. This inventiveness comes down to disorganized forms of functioning (leaderless resistance) and the methods used in fighting, both of which stem from considerable power disproportions between lone wolves (terrorists) and states. The development of violence among lone wolves is analyzed from the perspective of this constantly changing tactical and technological means. This paper is of both explanatory and prognostic nature. It consists of five parts. The first is dedicated to providing theoretical background and depicting case studies that serve as a starting point for the following analyses. The second section is dedicated to a brief description of used methods. Next, the types of lone wolves' activities are characterized and examined. In section four, the current and potential tactics employed by terrorists are analyzed. This paper concludes with the author's prognosis regarding the future development of this phenomenon.

10

Elektroniczna matryca pomiarowa do badania lamp lotniskowych

Podbucki Kacper, Suder Jakub, Marciniak Tomasz, Dąbrowski Adam

Przegląd Elektrotechniczny

|

2021

|

R. 97, nr 2

47--51

PL

W artykule przedstawiono wybrane aspekty projektowania i działania matrycy pomiarowej umożliwiającej badanie poprawności funkcjonowania oświetlenia lotniskowego. Przeanalizowano zastosowanie wybranych czujników natężenia światła BH1750 oraz VEML7700, pracujących w standardzie I2 C. Konieczne było użycie wielu czujników pomiarowych. Sposób komunikacji wymagał zastosowania translatora adresów, ze względu na jednakowe identyfikatory przy transmisji I2 C. Porównano działanie translatorów adresów TCA9548A oraz LTC4317.

EN

The paper presents selected aspects of the construction and usage of the measuring matrix enabling quality testing of airport lightning. The application of selected light intensity sensors BH1750 and VEML7700, working in the I2 C standard, was analyzed. It was necessary to use multiple sensors. The method of communication required the use of an address translator due to the same identifiers in I2 C transmission. The performance of the TCA9548A and LTC4317 address translators was compared.

11

Measures taken by the European Union Agency for Aviation Safety to ensure aviation safety

Fortońska Agnieszka

Journal of KONBiN

|

2021

|

Vol. 51, iss. 2

117--125

EN

The author will discuss the subject of aviation safety. The measures taken by EASA to maintain the high standard of aviation safety will be identified. At the same time, the paper will present the genesis of the establishment of the European Union Agency for Aviation Safety.

PL

Autorka poruszy tematykę bezpieczeństwa lotniczego. Zostaną wskazane środki stosowane przez EASA, aby utrzymać wysoki standard bezpieczeństwa lotniczego. Jednocześnie, w referacie zostanie przedstawiona geneza powstania Agencji Unii Europejskiej ds. Bezpieczeństwa Lotniczego.

12

Selected Aspects of Contemporary Air Threats

Kulik Tomasz

Safety & Defense

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2020

|

1

11--21

EN

One of the factors affecting the security of a state is air threats. Their nature often exerts a negative impact on both the functioning of the state and using airspace. The purpose of this article is to define the term of air threats and characterize contemporary air threats, illustrated with numerous examples. The scientific deliberations lead to outlining possible development trends in this respect, in relation to technological progress. The article ends with several concluding statements with regard to an analysis of prospective air threats. It also shows possible development trends in the discussed matter. The final part of the article is devoted to conclusions regarding the transformation of contemporary air threats.

13

Air Terrorism as a Threat to the Safety of Air Transport

Pająk Jacek

Safety & Defense

|

2020

|

2

123--130

EN

The author of this article addresses the issue of the threat posed to air transport security by air terrorism. The main goal of this article is to identify the specific threats arising from air terrorism and examine their implications for the functioning of air transport as a whole. The dangers posed by attacks using hijacked light aircraft as well as large passenger airliners are highlighted. The article is based on the literature study and the author’s own analyses of the issue.

14

Ocena możliwości zwiększania bezpieczeństwa transportu lotniczego po wprowadzeniu stopni alarmowania o zagrożeniach terrorystycznych

Kucharek Daniel

Problemy Jakości

|

2019

|

R. 51, nr 11

13--19

PL

Zagrożenie atakiem terrorystycznym na infrastrukturę portu lotniczego oraz samoloty znajdujące się na płaszczyźnie lotniska i w powietrzu stanowi obecnie istotny problem dla specjalistów zajmujących się kwestiami bezpieczeństwa lotniczego. Działania podejmowane w tym zakresie sprowadzają się głównie do wypracowania procedur postępowania w przypadku pojawienia się zagrożeń terrorystycznych lub likwidacji ich skutków. Autor niniejszego artykułu na podstawie badania literatury podjął się dokonania analizy istniejących procedur dotyczących postępowania w przypadku wprowadzenia przez władze państwowe stopni alarmowych zagrożenia terrorystycznego. Zakładanym celem artykułu jest wskazanie wagi stosowania wybranych zasad postępowania zarządzających portami lotniczymi oraz udzielenie odpowiedzi na istotne pytanie: w jakim zakresie wprowadzenie stopni alarmowania o zagrożeniach terrorystycznych ma wpływ na zwiększenie bezpieczeństwa transportu lotniczego?

EN

The threat of a terrorist attack on the airport infrastructure and aircraft in the air, is now an important issue for professionals dealing with air safety. Actions undertaken in this respect focus mainly on the development of the procedures in case of terrorist threats. The author of following article investigates the rules of conduct at the airports in case of introduction of terrorist threat alarm by the state. The main aim of this article is to highlight some of the rules of conduct and to answer the important question: to what extent the introduction of alerts for terrorist threat has an impact on increasing the safety of air transport?

15

Structural and functional simulation of interaction in the field of aviation safety by using matrices

Drobakha Hr., Neklonskyi I., Kateshchenok A., Sobyna V., Taraduda D., Borysova L., Lysachenko I.

Archives of Materials Science and Engineering

|

2019

|

Vol. 95, nr 2

67--76

EN

Purpose: The conducted research was aimed at constructing a structural and functional model for the interaction of bodies providing aviation safety during crisis management. Design/methodology/approach: The methods of mathematical simulation and the graph theory, the methods comparison and formalization have been applied to study the process of interaction between the bodies assuring aviation safety. Using methods of the linear algebra allowed constructing a mathematical model for the functional structure of the interaction process that contains description of this process by the main methods of interaction. Findings: It has been proved that the interaction process has a certain functional properties that reflect the functional relations between the modes of violator actions, the modes of using the response forces and the modes of interaction. A structural and functional model of interaction in semantic, algebraic forms and in the form of graphs has been created. using typical operations with incidence matrices, the possibility of obtaining the physical interpretation of the simulation results within the introduced algebra of functional structure models has been justified. Research limitations/implications: Discusses interactions between the bodies that assure aviation safety and at the same time, the possibility of a crisis situation is taken into account. Practical implications: The developed models allow reflecting the current state of the functional system and the elements of the process of interaction rather completely. It makes a structural and functional analysis of interaction possible and allows defining the priority directions of its organization, simulating the options and methods of interaction in solving relevant tasks by the bodies that assure aviation safety. Originality/value: That allowed not only describing the formal relations between the methods of interaction and interacting units, between the interacting units and the modes of violator actions, but also considering the influence of the interaction process on the current state of the functional system.

16

An airspace model aplicable for automatic flight route planning inside free route airspace

Drupka G., Majka A., Rogalski T., Trela L.

Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika

|

2018

|

z. 90 [298], nr 1

5--18

EN

The article is strongly related to the Single European Sky ATM Research (SESAR) project. The project’s objective is the improvement of air transport above Europe 0. Since Air Traffic Management (ATM) is involved to obtain more effective approach to air traffic flow managing activities, the concept of Flexible Use Airspace (FUA) has arisen in result. ATM is a quite developed aviation’s subdomain, therefore currently existing airspace state has been described briefly in the article, referring to the presented solution concept. The notion of Free Route Airspace (FRA) airspace model defined in this article relies on mathematical description. The selected approach clarifies airspace as a set of squares or cubes that have volumes with appointed values due to certain conditions in the considered time (i.e. traffic flow or weather). The model has to ensure facilitation of flight route planning and warrant aircrafts separation towards flight safety assurance. The concept assumes that this airspace model will provide assistance for airspace user to select essential flight plan criteria, such as economy, time, etc. The path will be appointed according to personal preferences, based on the model from which further elaborated algorithm will evaluate situation. The presented solution is a response to air traffic growth. Therefore it supports the SESAR project through research and development activities. The description proves that airspace model would create enhancement in flight planning for airspace users.

PL

Artykuł przedstawia koncepcję zamodelowanej przestrzeni powietrznej w sposób umożliwiający automatyczne planowanie lotu w Przestrzeni Lotów Swobodnych (Free Route Airspace – FRA). Zaprezentowany model usprawnia czynności składania planu lotu przez użytkownika, jednocześnie gwarantując bezpieczną separację statków powietrznych. Tematyka artykułu jest związana z badaniami do projektu Jednolitej Europejskiej Przestrzeni Powietrznej (Single European ATM Research – SESAR), której podstawowe założenie stanowi poprawa efektywności i bezpieczeństwa operacji w transporcie lotniczym. Efektywniejsze Zarządzanie Ruchem Lotniczym (Air Traffic Management – ATM) jest możliwe przez wprowadzenie koncepcji Elastycznego Zarządzania Przestrzenią Powietrzną (Flexible Use of Airspace – FUA). Elastyczne Zarządzanie Przestrzenią Powietrzną pozwala na monitorowanie dostępności przestrzeni w różnych odstępach czasowych, w sposób umożliwiający uwzględnienie planowanego natężenia ruchu wobec innych warunków, np. atmosferycznych. Przedstawiony w artykule opis przestrzeni powietrznej opiera się na opisie matematycznym. Przyjęte zostało założenie, że cała przestrzeń powietrzna składa się z jednakowej wielkości kwadratów (lub sześcianów w przypadku przestrzeni 3D). Każdy kwadrat lub sześcian ma przydzieloną pojemność wraz z wartościami określającymi dostępność w ustalonym czasie. Dostępność jest uwarunkowana przez wiele czynników, np. zagęszczenie ruchu lotniczego. Wykonane badania wskazują, że zamodelowana w ten sposób przestrzeń powietrzna stwarza potencjał do planowania lotu. W konsekwencji wprowadzenia przez użytkownika dwóch punktów lotu – początkowego i końcowego, przeszukana w następstwie przestrzeń pozwala na przeanalizowanie i zaproponowanie przez system trasy według przyjętego kryterium.

17

Contemporary threats facing air transport.

Marszałkiewicz J.

Zeszyty Naukowe. Transport / Politechnika Śląska

|

2017

|

z. 94

151--161

EN

Transport and logistics are a global enterprise, which means transportation must be provided to and from every continent around the world. This article presents the main threats facing international air transport in the course of necessary flying over dangerous and unstable countries, which represent almost a half of world’s land surface.

18

Ochrona lotnictwa cywilnego przed aktami bezprawnej ingerencji i zagrożeniami o charakterze terrorystycznym

Nakonieczna J.

Roczniki Studenckie Akademii Wojsk Lądowych

|

2017

|

R. 1

121--130

PL

Niniejszy artykuł obejmuje problematykę związaną z naruszeniem bezpieczeństwa lotnictwa cywilnego przez sprawców dokonujących aktów bezprawnej ingerencji, w tym ataków terrorystycznych. Lotnictwo cywilne korzysta współcześnie z zaawansowanych technologii zapewniając tym samym wysoki poziom ochrony, co dotyczy obszaru przestrzeni powietrznej jak i portów lotniczych. Należy podkreślić również istotną rolę prawodawstwa w zakresie ochrony lotnictwa cywilnego, szczególnie na płaszczyźnie zapobiegania terroryzmowi lotniczemu. W ciągu ostatnich dziesięcioleci dochodziło do różnego rodzaju zdarzeń będących zagrożeniem dla bezpieczeństwa żeglugi powietrznej, a sytuacje te stały się impulsem do tworzenia systemów prewencyjnych, którym zawdzięcza się wysoki poziom bezpieczeństwa w świecie transportu lotniczego.

EN

The paper discusses issues related with trespassing the safety of civil aviation by delinquents bringing off unlawful acts, including terrorist attacks. Nowadays civil aviation makes use of advanced technology, there by provides high security level which involves both airspace and airports. For that matter the air law regulations have a significant function in an assurance system of civil aviation security, especially on the field of aviation terrorism. It presents various types of threats with particular examples of situations which had taken place by decades. This paper indicates also proactive actions and acts which are taken in response to situations that are dangerous for air-traffic and safety at the airport.

19

Polityka bezpieczeństwa w porcie lotniczym

Wilk P.

Studia Bezpieczeństwa Narodowego

|

2016

|

R. 6, Nr 9

317--339

PL

W artykule zaprezentowano zagadnienia związane z bezpieczeństwem portów lotniczych i statków powietrznych. Na wstępie wyjaśniono najważniejsze pojęcia użyte w tekście oraz wskazano podstawy prawne regulujące kwestie bezpieczeństwa lotniczego. Omówiono politykę bezpieczeństwa stosowaną przez zarządzających portem lotniczym, określono kompetencje poszczególnych elementów systemu ochrony oraz opisano techniczne urządzenia wspomagające bezpieczeństwo.

EN

The following article is a description of the issues related to the safety at the airports and in aircrafts. In the text author explains the most important terms that have been used in a context of airport security and describes the legal bases regulating airport security activities. In addition the article identifies the main risks to aviation security: the acts of unlawful interference. The author uses a pragmatic approach in context of existing theory and analyses in respect to practice. He also assesses the general security of airport system, with the research answering the question: How do security procedures improve Airport security?

20

Remote Sensing Monitoring of Volcanic Ash Clouds Based on PCA Method

Li Ch., Dai Y., Zhao J., Zhou S., Yin J., Xue D.

Acta Geophysica

|

2015

|

Vol. 63, no. 2

432--450

EN

Volcanic ash clouds threaten the aviation safety and cause global environmental effects. It is possible to effectively monitor the volcanic ash cloud with the aid of thermal infrared remote sensing technology. Principal component analysis (PCA) is able to remove the inter-band correlation and eliminate the data redundancy of remote sensing data. Taking the Eyjafjallajokull volcanic ash clouds formed on 15 and 19 April 2010 as an example, in this paper, the PCA method is used to monitor the volcanic ash cloud based on MODIS bands selection; the USGS standard spectral database and the volcanic absorbing aerosol index (AAI) are applied as contrasts to the monitoring result. The results indicate that: the PCA method is much simpler; its spectral matching rates reach 74.65 and 76.35%, respectively; and the PCA method has higher consistency with volcanic AAI distribution.