The Israel–Egypt border region composed of longitudinal sand dunes is a very unique arid environmental ecosystem in the world: the Israeli side with much more vegetation cover has notably higher land surface temperature (LST) during daytime than the Egyptian side where bare sand prevails. In order to understand this thermal anomaly and its scientific significance in the arid environmental ecosy...

Introduction: The population of Venus impact craters is rather small (about 1000). About 10% of all craters have distinctive associated dark diffuse features (DDF) like parabolas or halos. Such craters are thought to be the youngest on the planet [1,2]. The DDF are interpreted as surface deposits of loose material (dust) formed by the impact. DDF change their form with geological time and disap...

Introduction Conclusions References

We have expanded on previous methods for correcting sense, the requirement of thermodynamic equilibrium in thermal infrared field measurements for atmospheric Kirchhoff ’s law is violated (Badenas, 1997). downwelling radiance (Salisbury and D’Aria, 1992; Korb Nerry et al. (1990a,b) and Labed and Stoll (1991) et al., 1996; Hook and Kahle, 1996) by comparing the used the ‘‘emissivity box’’ approa...

Introduction: Thermal infrared (TIR) emissivity spectral measurements of planetary surfaces have diagnostic features indicative of rock and mineral compositions. These include: (1) the Christiansen feature (CF), an emissivity maximum resulting from a rapid change in the refractive index at wavelengths just short of the fundamental molecular vibration bands, (2) the reststrahlen bands (RB), the ...