The Development of SONAR as a Tool in Marine Biological Research in the Twentieth Century
المؤلفون المشاركون
Fornshell, John A.
Tesei, Alessandra
المصدر
International Journal of Oceanography
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-11-14
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
علم الأرض والمياه والبيئة
تاريخ وجغرافيا
علوم
الملخص EN
The development of acoustic methods for measuring depths and ranges in the ocean environment began in the second decade of the twentieth century.
The two world wars and the “Cold War” produced three eras of rapid technological development in the field of acoustic oceanography.
By the mid-1920s, researchers had identified echoes from fish, Gadus morhua, in the traces from their echo sounders.
The first tank experiments establishing the basics for detection of fish were performed in 1928.
Through the 1930s, the use of SONAR as a means of locating schools of fish was developed.
The end of World War II was quickly followed by the advent of using SONAR to track and hunt whales in the Southern Ocean and the marketing of commercial fish finding SONARs for use by commercial fisherman.
The “deep scattering layer” composed of invertebrates and fish was discovered in the late 1940s on the echo sounder records.
SONARs employing high frequencies, broadband, split beam, and multiple frequencies were developed as methods for the detection, quantification and identification of fish and invertebrates.
The study of fish behavior has seen some use of passive acoustic techniques.
Advancements in computer technology have been important throughout the last four decades of the twentieth century.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Fornshell, John A.& Tesei, Alessandra. 2013. The Development of SONAR as a Tool in Marine Biological Research in the Twentieth Century. International Journal of Oceanography،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-489789
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Fornshell, John A.& Tesei, Alessandra. The Development of SONAR as a Tool in Marine Biological Research in the Twentieth Century. International Journal of Oceanography No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-489789
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Fornshell, John A.& Tesei, Alessandra. The Development of SONAR as a Tool in Marine Biological Research in the Twentieth Century. International Journal of Oceanography. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-489789
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-489789
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر