Type

Journal Article

Authors

Andrew C. Parnell
Jim Hodgson
Eugene Kashdan
Gerry Stanley
Avril Hegarty

Subjects

Environment

Topics
random effects electromagnetic functional data analysis surveys airborne repeatability northern ireland literature analysis

Repeatability analysis of airborne electromagnetic surveys. (2015)

Abstract We provide methods for determining the repeatability of airborne electromagnetic surveys when conducted at different altitudes over a number of repeated flights. Our data arise from the TELLUS project carried out by the Geological Surveys of Ireland and Northern Ireland and we examine the repeatability of the apparent resistivity at different frequencies. After considering a number of issues with the data, we propose two different models from the functional data analysis literature; a Weiner process with random effects, and a penalised spline smoother. Both methods arrive at the same conclusion regarding repeatability of the data; results obtained are more repeatable for flights at lower altitudes. The target altitude for aircraft carrying out airborne electromagnetic surveys should be as low as possible.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

Andrew C. Parnell, Jim Hodgson, Eugene Kashdan, Gerry Stanley, Avril Hegarty

Experts in our system

1
Andrew Parnell
Maynooth University
Total Publications: 45
 
2
Jim Hodgson
University College Dublin
Total Publications: 3
 
3
Eugene Kashdan
University College Dublin
Total Publications: 3
 
4
Gerry Stanley
University College Dublin
Total Publications: 3
 
5
Avril Hegarty
University College Dublin
Total Publications: 3