identification of spatial-temporal anomalies sea level pressure in iran was the main aim in this research. for this purpose six hourly data used from the to eastern longitude and to northern latitude. in this location, there are 825 pixels to geographical degree. therefore, database extent created. in this matrix, 825 are number of the pixels at that location and 90520 is number of six hourly s...

the aim of this research is recognizing synoptic patterns of the level 500 hp occurrence of late spring freezes over kurdistan province during 1965-2005. after determining freeze temporal-spatial threshold, 22 freezing days spreading over the region were extracted. then, level 500 hp height data located in a scope of 25-60 northern latitude and 30-60 eastern longitude was formulated as an s-mod...

Spectra from two decades of zonal current data at $$\sim $$ 4000 m in the central and western equatorial Indian Ocean show a shift dominant frequencies west to east. The 120–180-day period is stronger 77 $$^\circ E, 60–120-day 83 30–90-day 93 E. weakening lower near eastern boundary can be explained using theoretical ray paths Kelvin waves reflected Rossby waves. wave forced by winds reflects a...

The ash on ignition at 900 ˚C of a A4 copy paper sample UPM New Future Multi was determined to be 15.4%w/w and its X-ray diffraction pattern showed the presence only portlandite syn Ca(OH)2 peaks placed 2θ values 18o, 29o, 34o, 46o, 47o, 51o, 54o, 63o, 72o which corresponded crystal planes 111, 110, 112.

An improved measurement of the composite 0.05 to 10 MeV gamma-ray spectra as a function of longitude from the inner galactic ridge has been made using the Oriented Scintillation Spectrometer Experiment (OSSE) on the Compton Gamma Ray Observatory. The continuum appears to be a composite of 3 independent components. A strong positron annihilation contribution is observed toward the center with an...

Newly hatched sea turtles exposed to artificially generated magnetic fields with parameters characteristic of two sites 3700 km apart, differing only in longitude, can distinguish the two apparent locations and orient appropriately.