نتایج جستجو برای: gravity data baranov

تعداد نتایج: 2464351  

2007
M. Andy Kass Yaoguo Li

Gravity gradient data are currently enjoying a boost in popularity as their usefulness in both structural and stratigraphic petroleum exploration is re-discovered (i.e. Pawlowski, 1998) and as their use in mineral exploration is rapidly expanding. Gravity gradiometry’s ability to reject common-mode noise, directly measure quantities that must be calculated from potentially noisy data with stand...

Journal: :فیزیک زمین و فضا 0
بهزاد سرلک دانشجوی کارشناسی ارشد - دانشگاه شاهرود - دانشکده معدن، نفت و ژئوفیزیک حمید آقاجانی دانشگاه شاهرود-دانشکده معدن، نفت و ژئوفیزیک- گروه اکتشاف، نفت و ژئوفیزیک علی نجاتی کلاته دانشگاه شاهرود - دانشکده معدن، نفت و ژئوفیزیک - گروه نفت و ژئوفیزیک

abstract the use of geophysical methods, before digging, can be effective in the archaeological explorations. in the meantime, the gravimetery is the one of the most widely methods that be use, due to lack of harmful environmental effects. the gravity method is based on density contrast between the anomalous body and the country rocks or around of them. for archeology studying, the target is de...

Journal: :فیزیک زمین و فضا 0
عبدالرضا صفری دانشیار، گروه مهندسی نقشه برداری، پردیس دانشکده های فنی، دانشگاه عبدالرحمان مصطفایی دانشجوی دکتری ژئودزی، گروه مهندسی نقشه برداری، پردیس دانشکده های فنی، دانشگاه

height is amongst the most delicate subjects of geodesy. thanks to the global navigation satellite systems (gnss) like gps or glonass, 3d point positioning of points, by geometrical positioning, since years ago has become a common practice. the height derived from these ways has a geometrical concept. in civil projects the physical concept of the height is more demanded. orthometric height, , i...

ژورنال: ژئوفیزیک ایران 2019

Recently, interpretation of causative sources using components of the gravity gradient tensor (GGT) has had a rapid progress. Assuming N as the structural index, components of the gravity vector and gravity gradient tensor have a homogeneity degree of -N and - (N+1), respectively. In this paper, it is shown that the eigenvalues, the first and the second rotational invariants of the GGT (I1 and ...

2011
A. B. Smith

Accurate prediction of soil moisture in a land surface model (LSM) is critical in improving land surface and atmosphere interactions in the atmospheric general circulation models used in numerical weather prediction and global climate models. Gravity is a relatively new source of remotely sensed data, available since the launch of the twin Gravity Recovery And Climate Experiment (GRACE) satelli...

2003

The first 111 days of preliminary data from GRACE were used to produce a map of the Earth’s gravity anomalies. A gravity anomaly map shows us how much the actual Earth’s gravity field departs from “normal” as defined by a simplified mathematical gravity model that assumes the Earth is perfectly smooth and featureless. In this grayscale representation, brighter areas represent positive gravity a...

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