Interferometric synthetic aperture radar

roughness or prevailing geometric shapes from radar imagery (ALOS PALSAR, Radarsat-2). Martelet et al. (2006) used Agglomerative Hierarchical Clustering algorithm to classify airborne gamma-ray spectrometry data in French Guyana and noticed that ferralitic and bauxitic duricrusts display elevated U, Th content relative to K. In West Africa, Grimaud et al. (2015) used the Th/K ratio images to map the extent of the High glacis regolith surface. Regolith landform-maps were derived from gamma-ray spectrometry data by Wilford et al. (1997) and Wilford et al. (2007). Gamma ray spectrometry was one of the parameters used during continental-scale regolith depth estimation (Wilford et al., 2016) Landsat imagery is routinely employed in regolith mapping (Craig et al., 1999) including directed principal component analysis (DPCA), which is used to enhance the response of clay minerals and suppress the effects of vegetation (Fraser and Green, 1987). Hyperspectral remote sensing helped to analyze the surficial components of regolith (Dehaan and Taylor, 2004; Lau et al., 2003; Laukamp et al. 2016). Cudahy et al. (2006) studied the kaolinite disorder relationship to the depth of the Al-OH absorption in transported versus in situ regolith and observed that poorly crystalline kaolinite is found mostly in transported regolith material. Synthetic Aperture Radar (SAR) imagery complements optical images in geological applications (Baghdadi et al., 2005), as radar images provide unique information…

start with its uses here at home with its work with US Customs and Border Patrol as well as NASA. For the US Customs and Border Patrol the primary function is to provide surveillance and reconnaissance along both the US and Mexican border and the US and Canadian border (GCN,2006) (Military.com,2014). These systems are not equipped with armament. I cannot figure out why the Customs and Border Patrol chose to use the MQ-9 Reaper instead of its predecessor the MQ-1 Predator. The only viable option…

The surface of Venus was mapped in 1991 by the Magellan expedition, which revealed evidence of extensive volcanic activity on the planet--yet the timing of this volcanic activity remains a mystery. About 80 percent of Venus' surface is covered in volcanic material. Most of the volcanoes are believed to be inactive, yet there is some evidence to suggest more "recently" activity ("recent" in this context meaning within the last 500 million years). There are no lava nor caldera (craters created…