SIRGAS的历史发展

IF 0.9 Q4 REMOTE SENSING
H. Drewes
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引用次数: 0

摘要

美洲大地测量参考系统(Sistema de Referencia geodsamicsico para las amsamicica, SIRGAS)是1993年由国际大地测量学会(IAG)、泛美地理和历史研究所(PAIGH)、德国Geodätisches Forschungsinstitut (DGFI)和美国国防测绘局(DMA)在巴拉圭Asunción组织的一次国际会议上为南美洲发起的。1995年在58个观测站进行了为期10天的全球定位系统运动,观测了相应的南美参考网。该网络于2000年扩展到中美洲和北美洲,随后立即转换为连续观测GNSS站的框架,而不是短期运动。线性站点位置变化(速度)是通过多年周解的最小二乘调整来估计的,第一次发表于2002年。总站速度集用于计算连续地表变形模型,第一次在南美洲发表于2005年。今天,SIRGAS被美国大多数州接受为官方大地测量参考系。除了产品生成(站点位置、速度和地表变形),SIRGAS还积极参与教育和培训,为学生、测量员和其他利益相关者提供学校和研讨会。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Historical development of SIRGAS
Abstract The Geodetic Reference System for the Americas (Sistema de Referencia Geodésico para las Américas, SIRGAS) was initiated in 1993 for South America at an international conference organised by the International Association of Geodesy (IAG), the Pan-American Institute for Geography and History (PAIGH), the Deutsches Geodätisches Forschungsinstitut (DGFI), and the U.S. Defense Mapping Agency (DMA) in Asunción, Paraguay. The corresponding South American reference network was observed in 1995 by a ten-day GPS campaign at 58 stations. The network was extended to Central and North America in 2000 and immediately afterwards converted to a frame of continuously observing GNSS stations instead of short-term campaigns. The linear station position changes (velocities) were estimated by a multi-year least squares adjustment of weekly solutions, the first being published in 2002. The total set of station velocities served for the computation of continuous surface deformation models, the first over South America was published in 2005. Today, SIRGAS is accepted by most of the American states as the official geodetic reference frame. Besides the product generation (station positions, velocities, and surface deformation), SIRGAS is active in education and training offering schools and workshops for students, surveyors, and other stakeholders.
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来源期刊
Journal of Geodetic Science
Journal of Geodetic Science REMOTE SENSING-
CiteScore
1.90
自引率
7.70%
发文量
3
审稿时长
14 weeks
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