the comparison of sea surface temperature by satellite and field data of south caspian

the changes in time and location of surface temperature from a water body has an important effect on climate activities, marine biology, sea currents, salinity and other characteristics of the seas and lakes water. traditional measurement of temperature is costly and time consumer due to its dispersion and instability. in recent years the use of satellite technology and remote sensing sciences for data acquiring and parameter and analysis of climatology and oceanography is well developed. in this research we used the noaa’s satellite images from its avhrr system to compare the field surface temperature data with the satellite images information. ten satellite images were used in this project. these images were calibrated with the field data at the exact time of satellite pass above the area. the result was a significant relation between surface temperature from satellite data with the field work. the magnitude of the errors in between was low and in order of being acceptable. the information of all satellites were images extracted by erdas software, and the “surfer” software is used to plot the isotherm lines.