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The International Geomagnetic Reference Field in Syria at The Beginning of The Year ٢٠٠١ and The Secular Variations in The ٢٠th Century

الحقل المغنطيسي الأرضي المرجع (العالمي) في بداية عام ٢٠٠١ و التغيرات القرنية خلال القرن العشرين

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 Publication date 2001
and research's language is العربية
 Created by Shamra Editor




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The International Geomagnetic Reference Field (IGRF) is the best mathematical fit of the observed geomagnetic field at any specific time. It is adopted by the International Association of Geomagnetism and Aeronomy (IAGA). Due to the importance of this field for navigation, magnetic survey, geological mapping and military usage the IAGA evaluates this field every five years.


Artificial intelligence review:
Research summary
تتناول هذه الورقة البحثية الحقل المرجعي المغناطيسي الدولي (IGRF) في سوريا في بداية القرن العشرين. يتم اعتماد هذا الحقل من قبل الجمعية الدولية لعلم المغناطيسية الجوية (IAGA) ويُعتبر أفضل تمثيل رياضي للحقل المغناطيسي المرصود في أي وقت محدد. نظرًا لأهمية هذا الحقل في مجالات الملاحة والمسح المغناطيسي ورسم الخرائط الجيولوجية والاستخدامات العسكرية، تقوم IAGA بتقييم هذا الحقل كل خمس سنوات. تم حساب عناصر IGRF لبداية العام لمراكز أوراق خريطة سوريا بمقياس 1/200000 لتزويد الباحثين بالبيانات المطلوبة. كما تم حساب عناصر IGRF لمراكز دمشق وحلب ودير الزور في بداية كل خمس سنوات خلال القرن العشرين لدراسة التغيرات الزمنية خلال القرن الماضي.
Critical review
دراسة نقدية: تقدم هذه الورقة مساهمة قيمة في فهم الحقل المغناطيسي المرجعي الدولي (IGRF) في سوريا وتغيراته الزمنية خلال القرن العشرين. ومع ذلك، يمكن تحسين الدراسة من خلال تضمين مزيد من التفاصيل حول كيفية تأثير هذه التغيرات على التطبيقات العملية مثل الملاحة والمسح الجيولوجي. كما أن الدراسة تفتقر إلى تحليل شامل للعوامل التي قد تؤثر على دقة الحسابات المستخدمة في تحديد عناصر IGRF. بالإضافة إلى ذلك، يمكن أن تكون الدراسة أكثر شمولاً إذا تضمنت مقارنة مع بيانات من دول مجاورة لتقديم صورة أكثر تكاملاً عن التغيرات المغناطيسية في المنطقة.
Questions related to the research
  1. ما هو الحقل المرجعي المغناطيسي الدولي (IGRF)؟

    الحقل المرجعي المغناطيسي الدولي (IGRF) هو أفضل تمثيل رياضي للحقل المغناطيسي المرصود في أي وقت محدد، ويتم اعتماده من قبل الجمعية الدولية لعلم المغناطيسية الجوية (IAGA).

  2. لماذا يتم تقييم الحقل المرجعي المغناطيسي الدولي (IGRF) كل خمس سنوات؟

    يتم تقييم الحقل المرجعي المغناطيسي الدولي (IGRF) كل خمس سنوات نظرًا لأهميته في مجالات الملاحة والمسح المغناطيسي ورسم الخرائط الجيولوجية والاستخدامات العسكرية.

  3. ما هي المدن السورية التي تم حساب عناصر IGRF لها في الدراسة؟

    تم حساب عناصر IGRF لمراكز دمشق وحلب ودير الزور في الدراسة.

  4. ما هي الفائدة العملية من دراسة التغيرات الزمنية للحقل المغناطيسي المرجعي الدولي (IGRF)؟

    دراسة التغيرات الزمنية للحقل المغناطيسي المرجعي الدولي (IGRF) تساعد في تحسين دقة التطبيقات العملية مثل الملاحة والمسح الجيولوجي ورسم الخرائط، بالإضافة إلى فهم أفضل للتغيرات المغناطيسية التي قد تؤثر على هذه التطبيقات.


References used
Barraclough D. R. (١٩٩٥). Spherical Harmonic Coefficient of the Geomagnetic Reference Field for ١٩٩٥. (Personal Communication
IAGA Division I study group on Geomagnetic Reference Fields. (١٩٧٦). International Geomagnetic Reference Field. Jour. Geophys. Res
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