The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,co...The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,conservation work and relevant terminology still build upon the principles first outlined in his work Der moderne Denkmalkultus(1903)more than a hundred years ago.And yet,modern information/communication technologies have long challenged the idea of‘age value’(Alterswert),of a monument possessing value simply because it shows‘signs of age’(Altersspuren),through their ability to digitally recreate historical architecture in its original form and thereby to transcend the boundaries of time and space.This paper discusses the challenges and opportunities for monument preservation in the 21st century in the light of Riegl’s thoughts on how to perceive(‘visualise’)the past.It investigates the validity of Riegl’s theories in the context of today’s virtual reality/ies at a theoretical level,and their potential for advancement in preservation theory,expanding on historical thoughts rooted in 18th and 19th century preservation theories.By analysing Riegl’s commemorative values,stratigraphic picturing of history’s material debris,and fear of formlessness,this paper explores digitisation as the driving force for change in attitude from traditional,restrictive thinking to a modern way of thinking which is receptive to new technological developments,including,for example,exploring augmented and virtual realities as a means of achieving the sensory aesthetic experience required by age value.展开更多
Glacier mass balance is a key component of glacier monitoring programs. Information on the mass balance of Sawir Mountains is poor due to a dearth of in-situ measurements. This paper introduces the applicability of an...Glacier mass balance is a key component of glacier monitoring programs. Information on the mass balance of Sawir Mountains is poor due to a dearth of in-situ measurements. This paper introduces the applicability of an ultra-long-range terrestrial laser scanner(TLS) to monitor the mass balance of Muz Taw Glacier, Sawir Mountains, China. The Riegl VZ?-6000 TLS is exceptionally well-suited for measuring snowy and icy terrain. Here, we use TLS to create repeated high spatiotemporal resolution DEMs, focusing on the annual mass balance(June 2, 2015 to July 25, 2016). According to TLS-derived high spatial resolution point clouds, the front variation(glacier retreat) of Muz Taw Glacier was 9.3 m. The mean geodetic elevation change was 4.55 m at the ablation area. By comparing with glaciological measurements, the glaciological elevation change of individual stakes and the TLS-derived geodetic elevation change of corresponding points matched closely, and the calculated balance was-3.864±0.378 m w.e.. This data indicates that TLS provides accurate results and is therefore suitable to monitor mass balance evolution of Muz Taw Glacier.展开更多
文摘The Austrian art historian Alois Riegl(1858-1905)revolutionised the European concept of the monument and paved the way towards the codification of the historicity of artefacts at the international level.Today,conservation work and relevant terminology still build upon the principles first outlined in his work Der moderne Denkmalkultus(1903)more than a hundred years ago.And yet,modern information/communication technologies have long challenged the idea of‘age value’(Alterswert),of a monument possessing value simply because it shows‘signs of age’(Altersspuren),through their ability to digitally recreate historical architecture in its original form and thereby to transcend the boundaries of time and space.This paper discusses the challenges and opportunities for monument preservation in the 21st century in the light of Riegl’s thoughts on how to perceive(‘visualise’)the past.It investigates the validity of Riegl’s theories in the context of today’s virtual reality/ies at a theoretical level,and their potential for advancement in preservation theory,expanding on historical thoughts rooted in 18th and 19th century preservation theories.By analysing Riegl’s commemorative values,stratigraphic picturing of history’s material debris,and fear of formlessness,this paper explores digitisation as the driving force for change in attitude from traditional,restrictive thinking to a modern way of thinking which is receptive to new technological developments,including,for example,exploring augmented and virtual realities as a means of achieving the sensory aesthetic experience required by age value.
基金supported by the National Natural Science Foundation of China(41601076,41471058 nd 91425303)the"Light of West China"program for Talent Introduction of Chinese Academy
文摘Glacier mass balance is a key component of glacier monitoring programs. Information on the mass balance of Sawir Mountains is poor due to a dearth of in-situ measurements. This paper introduces the applicability of an ultra-long-range terrestrial laser scanner(TLS) to monitor the mass balance of Muz Taw Glacier, Sawir Mountains, China. The Riegl VZ?-6000 TLS is exceptionally well-suited for measuring snowy and icy terrain. Here, we use TLS to create repeated high spatiotemporal resolution DEMs, focusing on the annual mass balance(June 2, 2015 to July 25, 2016). According to TLS-derived high spatial resolution point clouds, the front variation(glacier retreat) of Muz Taw Glacier was 9.3 m. The mean geodetic elevation change was 4.55 m at the ablation area. By comparing with glaciological measurements, the glaciological elevation change of individual stakes and the TLS-derived geodetic elevation change of corresponding points matched closely, and the calculated balance was-3.864±0.378 m w.e.. This data indicates that TLS provides accurate results and is therefore suitable to monitor mass balance evolution of Muz Taw Glacier.
