A New Method For Interpolating Ages Between Calibrated Control Points Based On Foraminiferal Concentrations

2016 ◽  
Vol 86 (5) ◽  
pp. 438-447 ◽  
Author(s):  
Martin P. Crundwell
Keyword(s):  
2013 ◽  
Vol 457-458 ◽  
pp. 793-796
Author(s):  
I. Mimorov ◽  
I. Livshits ◽  
V. Vasilev

This paper describes the new method that improves the processing and storing of data, which was used during the development of distance teaching system. Usage of a modern methodologies and good practice has reduced the time cost for working with information, helps to identify the out of day information, operate potential risks and shows how to receive competitive advantages.


2016 ◽  
Vol 10 (2) ◽  
Author(s):  
Xianwen Yu ◽  
Huiqing Wang ◽  
Jinling Wang

AbstractWhile producing large-scale larger than 1:2000 maps in cities or towns, the obstruction from buildings leads to difficult and heavy tasks of measuring mapping control points. In order to avoid measuring the mapping control points and shorten the time of fieldwork, in this paper, a quick mapping method is proposed. This method adjusts many free blocks of surveys together, and transforms the points from all free blocks of surveys into the same coordinate system. The entire surveying area is divided into many free blocks, and connection points are set on the boundaries between free blocks. An independent coordinate system of every free block is established via completely free station technology, and the coordinates of the connection points, detail points and control points in every free block in the corresponding independent coordinate systems are obtained based on poly-directional open traverses. Error equations are established based on connection points, which are determined together to obtain the transformation parameters. All points are transformed from the independent coordinate systems to a transitional coordinate system via the transformation parameters. Several control points are then measured by GPS in a geodetic coordinate system. All the points can then be transformed from the transitional coordinate system to the geodetic coordinate system. In this paper, the implementation process and mathematical formulas of the new method are presented in detail, and the formula to estimate the precision of surveys is given. An example has demonstrated that the precision of using the new method could meet large-scale mapping needs.


2021 ◽  
Vol 2021 ◽  
pp. 1-23
Author(s):  
Rabia Hameed ◽  
Ghulam Mustafa ◽  
Jiansong Deng ◽  
Shafqat Ali

In this article, we present a new method to construct a family of 2 N + 2 -point binary subdivision schemes with one tension parameter. The construction of the family of schemes is based on repeated local translation of points by certain displacement vectors. Therefore, refinement rules of the 2 N + 2 -point schemes are recursively obtained from refinement rules of the 2 N -point schemes. Thus, we get a new subdivision scheme at each iteration. Moreover, the complexity, polynomial reproduction, and polynomial generation of the schemes are increased by two at each iteration. Furthermore, a family of interproximate subdivision schemes with tension parameters is also introduced which is the extended form of the proposed family of schemes. This family of schemes allows a different tension value for each edge and vertex of the initial control polygon. These schemes generate curves and surfaces such that some initial control points are interpolated and others are approximated.


2012 ◽  
Vol 446-449 ◽  
pp. 3180-3184
Author(s):  
Cai Zhong Lv ◽  
Xiao Hui Liao ◽  
Zhong Da Zhan

Elevation control survey was the foundation of the surveying for ancient architecture profile and facade. The traditional survey method of closed leveling line had many defects such as its workload was big; its calculating office work was complex and so on. The new method used many control points existing in reality, then sublevel surveyed independently. The new method also used the traditional adjustment method and weighting adjustment method. It accelerated the survey progress and increased the survey precision.


2015 ◽  
Vol 744-746 ◽  
pp. 1709-1713
Author(s):  
Ji Feng Wu ◽  
Zhi Qiang Yang ◽  
Zhen Shi ◽  
Jian Hua Yang

In the modern geodesy and precise engineering surveying, we often choose ITRF reference frame as the measurement benchmark for research. In some special projects, however, it is difficult to directly get the coordinates of points by GPS, and the visibility conditions between points have also been limited. According to this problem, we propose a new method combining GPS survey and gyrostatic orientation technology, to access the ITRF coordinates of control points indirectly, and analysis and research the related important issues.


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