کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5780657 1413832 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Far-zone contributions of airborne gravity anomalies' upward/downward continuation
ترجمه فارسی عنوان
مشارکت مناطق دور افتاده از ناحیه گرانش هوا به سمت بالا / پایین ادامه دارد
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
چکیده انگلیسی
Airborne gravimetry has become a vital technique in local gravity field approximation, and upward/downward continuation of gravity data is a key process of airborne gravimetry. In these procedures, the integral domain is divided into two parts, namely the near-zone and the far-zone. The far-zone contributions are approximated by the truncation coefficients and a global geo-potential model, and their values are controlled by several issues. This paper investigates the effects of flight height, the size of near-zone cap, and Remove-Compute-Restore (RCR) technique upon far-zone contributions. Results show that at mountainous area the far-zone contributions can be ignored when EIGEN-6C of 360 degree is removed from the gravity data, together with a near-zone cap of 1° and a flight height less than 10 km, while at flat area EIGEN-6C of 180 degree is feasible.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geodesy and Geodynamics - Volume 7, Issue 6, November 2016, Pages 444-450
نویسندگان
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