abstract this research investigates the effect of drought on ground water table of neishabour plain. the precipitation data of nishabour synoptic station during 1990-2001, the bar climatology station during 1964-2001 and the data of hydrometric stations of kherv and bar in 1996-2001 have been used as the base of analysis. the method of herbest et all has been used to analyze the drought. using ...

in iraq, waste generation was increased after 2003 war events due to intensepopulation developmentand economic growth. the limitation of designable system for municipal solidwaste (msw) management led toserious problems regarding environment and human health. sanitary landfill in the south of kirkuk is the first kindof effective system for municipal solid waste management in iraq. in the first ...

study of the ground water quality in hodeidah is an essential ingredient for a healthypopulation. in this research, study of drinking water samples for eight water sources wells in thequti field has been achieved. the purpose was to a certain the quality of water from thesesources, the physical properties such as ph, electrical conductivity (ec) and total dissolvedsolids (tds), showed the varia...

Ž . This paper describes a newly developed stepped-frequency ground penetrating radar SFGPR prototype operating across the 10–620 MHz frequency band. The SFGPR system has been developed to improve the maximum penetration depth Ž . capability of ground penetrating radar GPR applications without degradation of resolving power. The radar has the unique capability to employ a short gate at each fre...

The relationship between snow water equivalence (SWE) and SAR backscattering coefficients at Cand X-band (5.5 and 9.6 GHz) can be either positive or negative. Therefore, discovery of the relationship with an empirical approach is unrealistic. Instead, we estimate snow depth and particle size using SIR-C/X-SAR imagery from a physically-based first order backscattering model through analyses of t...

We measured the horizontal and vertical movements of ®ve adult yellow®n tuna (Thunnus albacares, estimated body mass 64 to 93 kg) near the main Hawaiian Islands, while simultaneously gathering data on oceanographic conditions and currents. Fish movements were recorded by means of ultrasonic depth-sensitive transmitters. Depth±temperature and depth±oxygen pro®les were measured with vertical cond...