搜索结果: 1-11 共查到“勘探地球物理学 GPS”相关记录11条 . 查询时间(0.075 秒)
True or false GPS-derived deformations?
Deformation analysis GPS networks igm 95 rome area
2015/9/28
In this paper we focus on the question whether GPS networks born with cartographic aims can be safely used in crustal deformation control. We carried out a test on a network of five vertices located i...
Data analysis of Permanent GPS networks in Italy and surrounding region:application of a distributed processing approach
Crustal deformations Satellite geodesy Data processing Plate boundaries, motion, and tectonics
2015/9/8
We describe the procedures used to combine into a uniform velocity solution the observations of more than 80 continuous GPS stations operating in the central Mediterranean in the 1998-2004 time interv...
GPS measurement of active strains across the Apennines
GPS measurement active strains Apennines
2015/9/7
Geodetic data are providing a new prospective in studying active tectonic processes that are occurring in penin- sular Italy. In this paper we use a recently published GPS velocity solution, obtained ...
MIVIS image geocoding experience on merging position attitude system data and public domain GPS stream (ASI-GeoDAF)
MIVIS geocoding geometric correction GPS
2015/9/7
The use of airborne scanners involves geo-referencing problems, which are difficult because of the need to know the exact platform position and attitude for each scan line. The errors of the onboard n...
Kinematic GPS survey as validation of LIDAR strips accuracy
LIDAR GPS DTM landslide body Sarno
2015/9/7
As a result of the catastrophic hydrogeological events which occurred in May 1998 in Campania, in the south of Italy, the distinctive features of airborne laser scanning mounted on a helicopter were u...
Atmospheric anomalies over Mt.Etna using GPS signal delays and tomography of radio wave velocities
GPS atmospheric anomalies tropospheric delays tomography of radio wave velocities
2015/9/2
Due to the prominent topography of Mt. Etna, the use of satellite geodetic techniques may significantly suffer from atmospheric heterogeneities. This problem mainly affects the DInSAR technique. To ov...
Reduction in the ionospheric error for a single-frequency GPS timing solution using tomography
GPS ionosphere tomography timing single-frequency
2015/8/28
Single-frequency Global Positioning System (GPS) receivers do not accurately compensate for the ionospheric delay imposed upon a GPS signal. They rely upon models to compensate for the ionosphere. Thi...
GPS tomography tests for DInSAR applications on Mt. Etna
Volcano monitoring Satellite geodesy GPS Tomography Etna SAR DInSAR Refractivity Delay
2015/8/14
Tropospheric artifacts of SAR images in a volcanic area like Mt. Etna cause ambiguity in the interpretation of deformations with such technique. It would be useful to measure the delay caused by tropo...
利用GPS技术监测城市地面沉降，监测基准的合理选取对获得真实的形变结果至关重要.本文详细分析了城市沉降监测网基准的特点，针对传统基准模型的局限性提出了顾及板块运动、基准点稳定性以及其他系统误差影响的拟稳基准模型.该模型考虑了基准点自身的稳定性以及板块运动对高程形变的影响，同时采用系统参数统一各期基线框架以及区域拟稳基准，有效解决了因基准点不稳定性和基线框架不一致对形变结果造成的误差，确保正确形变信...
丹巴县甲居滑坡GPS地表监测阶段成果
GPS 滑坡 监测
2009/5/20
本文主要介绍GPS 用于地质灾害滑坡地表监测的技术和方法, 并通过在四川丹巴县甲居滑坡区布设的GPS 监测网的测量, 阐述了在GPS 滑坡监测时, 监测点位选择、监测网布设、数据处理的方法.监测结果表明, GPS 滑坡监测的精度达到毫米级, 完全满足滑坡监测的精度要求。
青藏高原印度板块向欧亚大陆俯冲速率的研究——GPS观测资料的反演结果
板块俯冲GPS弹性位错 大地测量反演 青藏高原
2010/12/22
利用近年来中外几个研究单位在青藏高原的GPS观测结果，根据印度板块向欧亚大陆 俯冲模型，采用二层弹性自重半空间内断层运动的位错模型，对印度板块向欧亚大陆俯冲的 速率进行了反演，给出了在大地测量观测结果约束下的现今印度板块向欧亚大陆俯冲的速率 . 反演结果表明，现今印度板块约以8.1°的倾角、21.8 mm/a的速率向欧亚大陆俯冲. 本文 结果与从地质推断的在过去2～３Ma时期内，印度板块向欧亚大陆...