Remote Sensing

ARMA and its affiliates provide consultation and services in the use of remote sensing technologies, including those that involve airborne and/or satellite-based platforms and which enable large-scale monitoring. In particular, ARMA personnel have experience in evaluating and recommending suitable methods for monitoring pipelines and ground movement.

Though remote sensing is broadly defined as any method that can collect and interpret data about objects without being in contact with them, common methods are restricted to using electromagnetic (EM) energy (light, heat and radio waves) as means of detecting and measuring desired object attributes. Thus, our practice excludes electrical, magnetic and gravitational surveys, which measure force fields (rather than electromagnetic radiation).

We evaluate the applicability of remote sensing systems and make selection on the basis of the following features and applicable EM window:

Remote Sensing Features:

  • • type of platform
  • • type of radiation
  • • radiation source
  • • interaction mechanism
  • • spatial resolution
  • • image capture mechanism
               
WindowWavelengthRemark
Photographic UV Band 0.3 to 0.4 µm Detectable with film and photodetectors.
Visible 0.4 to 0.7 µm Detectable with film and photodetectors.
Infrared(IR) 0.7 to 100 µm Material properties sensitive to wavelengths used.
Thermal IR Band 3 to 5 µm; 8 to 14 µm Heat capacity of materials sensed.
Microwave 0.1 to 30 cm Images may be in passive or active mode
Radar 0.1 to 30 cm Active form of microwave sensing
Radio > 30 cm Some classified radars operate in this region