scholarly journals Monitoring extinction: defaunation, technology and the biopolitics of conservation in the Atlantic Forest, Brazil

2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Thomas Kiggell

Due to habitat fragmentation, Brazil's Atlantic Forest is considered one of the world's most threatened biodiversity hotspots. Much of the biome has become extinct of its largest-bodied mammals,leading some to refer it as a 'half-empty forest.' One of the ways conservation actors are responding to this crisis is by utilizing Global Positioning System(GPS), camera trapping, and remote sensing satellite imagery. Together, these tools enable the collection of data at unprecedent levels. By intensifying wildlife monitoring, it is thought that better-directed actions can be taken to avoid species extinction. Although there is a nascent body of research in political ecology examining the role of these new technologies in conservation,so far there has been little exploration of what this implies for the transformation of the governance of conservation spaces. Bringing together literatures on biopolitics of conservation and conservation technologies, this article reflects on the ways new technologies are changing the biopolitical governance of conservation in the Atlantic Forest. I argue that the increase of information flows, together with the ability to process data through models and algorithms, intensifies the capability of biopolitical governance to justify claims for new protected areas, while changing ecological subjectivities. With the increased use of remote sensing technologies, some ecologists are being distanced from the field, and are consequently having less interactions with rural communities. As pressures on biodiversity increase, this may facilitate advocacy for coercive conservation measures that have adverse impacts on local communities.

1982 ◽  
Vol 35 (3) ◽  
pp. 482-490
Author(s):  
J. P. O'Sullivan

This paper, which reviews briefly the development of modern maritime electronic navigation aids, was presented at a meeting of the Scottish Branch of the Institute held in Edinburgh on 7 October 1981.The electronic navigation systems dealt with in this paper are the principal position-fixing aids and the somewhat related computer radar data-processing equipment or Collision Avoidance Systems, inasmuch as these envelop a navigational task. The survey will thus embrace the principal hyperbolic aids – Decca Main Chain and Loran-C; the artificial satellite navigation systems – TRANSIT SATELLITE and NAVSTAR, the Global Positioning System; and the navigational role of collision avoidance systems.


2018 ◽  
Vol 2018 ◽  
pp. 1-13
Author(s):  
Lu Zhaoxing ◽  
Fang Jiancheng ◽  
Gong Xiaolin ◽  
Li Jianli ◽  
Wang Shicheng ◽  
...  

The position and orientation system (POS) is widely applied in airborne Earth observation, which integrates the strapdown inertial navigation system (SINS) and global positioning system (GPS) to provide high-accuracy position, velocity, and attitude information for remote sensing motion compensation. However, for keeping the appointed direction of remote sensing load, the inertial measurement unit (IMU) and remote sensing load will be driven to sweep by the servo machine. The lever arms among IMU, GPS, and remote sensing load will be time varying, and their influence on the measurement accuracy of POS is serious. To solve the problem, a dynamic lever arm error compensation method is proposed, which contains the first-level lever arm error compensations between IMU and GPS and the second-level lever arm error compensation between POS and remote sensing load. The flight experiment results show that the proposed method can effectively compensate the dynamic lever arm error and achieve high measurement accuracy for POS.


2013 ◽  
Vol 12 ◽  
pp. 19-24
Author(s):  
Susheel Dangol ◽  
Buong Yong Kwak

The cadastral system in Nepal is developing continuously with gradual speed. Cadastralsurvey started with chain survey and in due course of time, plane table survey was adopted for the survey in spite of its limitations in accuracy and time. Currently, total station has been practiced in few municipalities for this purpose. The paper focuses on the probability of modern data handling technology; Total station, Global Positioning System (GPS), Participatory GIS and Remote Sensing as the appropriate technology for the improvement of existing cadastral system of the country. Current situation of the cadastral system and the technology used, its shortcomings and the suitability of the proposed data handling technology are discussed in the paper. Nepalese Journal on Geoinformatics -12, 2070 (2013AD): 19-24


2005 ◽  
Vol 58 (2) ◽  
pp. 227-240 ◽  
Author(s):  
Takuji Ebinuma ◽  
Elizabeth Rooney ◽  
Scott Gleason ◽  
Martin Unwin

The Disaster Monitoring Constellation (DMC) is an international Earth observation programme to provide a rapid global remote sensing service for the monitoring and mitigation of natural and man-made disasters. Although the Global Positioning System (GPS) was originally designed for terrestrial and air applications, satellite operations have benefited greatly from the use of on-board GPS receivers. This paper describes the GPS receiver operations on the DMC satellites, performance analysis, lessons learned, and upgrades planned for the future.


2019 ◽  
Vol 45 (1) ◽  
pp. 301-320 ◽  
Author(s):  
Benjamin Cornwell ◽  
Jonathan Gershuny ◽  
Oriel Sullivan

Research on time use has seen several major developments in recent years. These include the adoption of exciting new technologies (e.g., smartphones, wearable Global Positioning System devices) that track behavior in real time, as well as a growing international database—the Multinational Time Use Study—that has surpassed one million days’ worth of harmonized time-diary data. These developments are transforming our understanding of the social patterning of everyday behavior. This article provides updates about this area of work, including recent findings regarding foundational sociological issues such as trends in gendered divisions of household labor and over-time, cross-national aggregate estimates of time spent on paid work and leisure. We also highlight new approaches to the study of time use. This includes an overview of advances in the collection and analysis of time-stamped behavioral data, as well as a discussion of methodological advances in the analysis of the temporal sequential structure of everyday activities.


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