Analysis of the relationship between the birds flying height and guard against the bird striking in the civil aviation airport
The report has been stressed on the study of the heights of dangerous birds in and around the domestic and international airports,which is largely unknown since the topic has been less touched in the study of the bird strike disasters and their prevention.In response to the research inadequacy,we would like to stress the focus on the examination of the bird-strike disasters for aviation on the account of their flying height by taking the Hohhot International Airport,Bayannut Civil Aviation Airport and Ulangab Civil Aviation Airport as our sample study cases.The results of our survey and investigation over the subject prove that,so far as our survey and investigation are concemed,we have found there exist 86 species of birds that have been flying over or stay in the airports aforementioned.From the point of view of the likely risks they can bring about to the flight of all kinds of aircraft,their flying height should be taken as one of the key influential factors.And,in turn,we prefer to classify all the birds involving the airport aviation risks into different sorts by the likeliness-at-risks.And,for the convenience of the preventive activities,we have divided the birds found into four types:the utmost dangerous bird species,the very dangerous ones,the comparatively dangerous ones and the ordinary ones.In accordance with our investigation,the utmost dangerous bird species account for 16.28%,and the very dangerous bird species account 17.44%,whereas the comparatively dangerous bird species take 29.07%,and the ordinary ones occupy 37.21%.As to the 16 taxonomic groups that can be observed by the height of birds,they tend to behave in the similar manners.The three highly dangerous groups of birds should include anatidae,falcon and crows.As compared with the Erenhot Civil Aviation Airport,the dangerous levels the birds can cause to the airports,the evaluation standards can also be various.What concerns most,though the criteria for the classification of the risks may vary with the birds,the utmost dangerous bird species in the four airports are similar,including larks and sparrows.However,majority of the bird species that may lead to the ordinary risks are small songbirds.From the above analysis,it can be concluded that it would be right to take the birds flying height as a factor in dividing the dangerous levels to the airport operation.What is more,we have also analyzed some potentially dangerous birds in this survey.Thus,based on the research results,we have made the corresponding methods on how to prevent the bird strikes,such as managing the environment in the flight area,arranging flight in the more reasonable ways,building up block bird nets,and se on.