Using Site Survey Data to Monitor Shallow Subsurface Leakage

2011 ◽  
Author(s):  
M. Landro
Keyword(s):  
Survey Data ◽  
Shallow Subsurface ◽  
Site Survey

scholarly journals EM Site A.C. Magnetic Field Sources, Surveys and Solutions Part V : Solutions!

1996 ◽  
Vol 4 (6) ◽  
pp. 16-17
Author(s):  
Curt Dunnam
Keyword(s):  
Magnetic Field ◽  
Data Analysis ◽  
Magnetic Fields ◽  
Survey Data ◽  
Magnetic Survey ◽  
Site Survey ◽  
Basic Physics ◽  
Active Shielding ◽  
Lower Site ◽  
Shielding Methods

This month's installment completes our primer series on magnetic fields by defining conditions where remedial EM site shielding is in fact technically feasible and by illustrating examples of both passive and active shielding methods (or attaining lower site fields. For those readers who may have missed one or more previous articles, we have thus far presented some basic physics describing magnetic source fields [Microscopy Today, November, 1995), examined magnetic survey equipment and methods relevant to EM interference thresholds (Ml, January, 1996), and, in Part IV (“Survey Data Analysis”, MT, May, 1996), suggested techniques for interpretation of typical EM site survey data.

scholarly journals Using Virtual Reality to Assess Landscape: A Comparative Study Between On-Site Survey and Virtual Reality of Aesthetic Preference and Landscape Cognition

2020 ◽  
Vol 12 (7) ◽  
pp. 2875 ◽  
Author(s):  
Jiaying Shi ◽  
Tsuyoshi Honjo ◽  
Kaixuan Zhang ◽  
Katsunori Furuya
Keyword(s):  
Virtual Reality ◽  
Comparative Study ◽  
Survey Data ◽  
Aesthetic Preference ◽  
Landscape Perception ◽  
Reliable Tool ◽  
Site Survey ◽  
High Level ◽  
Site Stimulation

In recent years, research on landscape perception has been generally overoptimistic about the use of virtual reality (VR); however, few have questioned the validity of VR. It is necessary to examine whether on-site stimulation can be substituted by VR. The purpose of this study was to assess the degree of agreement between on-site survey and VR for landscape perception. The sample included 11 representative landscapes from Tsuchiura city and Tsukuba city, Japan. On-site survey data was collected for 17 items related to aesthetic preference and landscape cognition. The same scenes were produced by VR and same survey data as on-site was collected. The agreement of both the overall mean of all landscapes and the ratings of all individuals in each landscape confirmed the high level of concordance of most cognitive attributes between the two stimuli. The findings support immersive VR as a reliable tool for assessing landscape cognition.

The IODP Site Survey Data Bank: Lifecycle Cyberinfrastructure for drilling projects

2006 ◽  
Author(s):  
Stephen P. Miller ◽  
Christina Massell Symons ◽  
John Helly
Keyword(s):  
Survey Data ◽  
Data Bank ◽  
Site Survey

AN APPRAISAL OF REGIONAL SURVEYS IN THE BASIN OF MEXICO, 1960–1975

2015 ◽  
Vol 26 (1) ◽  
pp. 183-196 ◽  
Author(s):  
Jeffrey R. Parsons
Keyword(s):  
Survey Data ◽  
Future Study ◽  
Settlement Patterns ◽  
Archaeological Sites ◽  
Archaeological Record ◽  
Subsequent Research ◽  
The Past ◽  
Basin Of Mexico ◽  
Modern Development ◽  
Site Survey

AbstractIn this paper I focus on the regional surveys undertaken in 1960–1975—their development, implementation, key accomplishments, and major shortcomings. I also point to how resulting survey data and surface collections have provided the foundations for subsequent research on a variety of specific problems, sites, and locales, and how complementary historical and ethnographical studies have contributed to interpretations of pre-Columbian settlement patterns. I consider how off-site survey can, and should, complement the more extensive regional surveys that have been carried out in the past. While lamenting the archaeological record lost to modern development, in a more positive vein I suggest lines of productive future investigation that might still be undertaken to extend the significance of past results, evaluate a series of questions and hypotheses defined by the surveys, and help conserve archaeological sites and collections for future study.

Assessing detection probabilities for the endangered growling grass frog (Litoria raniformis) in southern Victoria

2006 ◽  
Vol 33 (7) ◽  
pp. 557 ◽  
Author(s):  
Geoffrey W. Heard ◽  
Peter Robertson ◽  
Michael P. Scroggie
Keyword(s):  
Data Analysis ◽  
Survey Data ◽  
Credible Interval ◽  
Single Site ◽  
Species Occurrence ◽  
Survey Techniques ◽  
Site Survey ◽  
Detection Probabilities

Assessment of the efficacy of survey techniques for determining species occurrence is crucial for the validation of wildlife survey data. We analysed repeated site-survey data for adults and larvae of the growling grass frog (Litoria raniformis) in order to estimate probabilities of detection for the species using alternative survey techniques. The estimated probability of detecting adults of L. raniformis at occupied sites using diurnal searches was much less than 1.0 (0.107; 95% credible interval: 0.045, 0.192). The estimated probability of detecting adults using nocturnal spotlight searches was considerably higher, but still less than 1.0 (0.696; 95% credible interval: 0.585, 0.796). These results indicate that nocturnal searches are a much more efficient and reliable means of detecting the presence of adult L. raniformis than diurnal searches, but detection using either technique is less than certain. The probability of detecting tadpoles of L. raniformis using either funnel-trapping or dip-netting techniques was estimated at 0.350 (95% credible interval: 0.151, 0.567). Together, these results indicate that reliance on single-site visits during surveys for this species is likely to result in severe under-estimation of the proportion of sites that are actually occupied. We urge other workers to use repeated site-survey data and appropriate methods of data analysis to assess and report probabilities of detection when documenting the results of wildlife surveys.

Approximating the distribution of recreational visits from on-site survey data

2009 ◽  
Vol 90 (5) ◽  
pp. 1850-1853 ◽  
Author(s):  
J.S. Shonkwiler ◽  
Jeffrey Englin
Keyword(s):  
Survey Data ◽  
Site Survey
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