7805

7270

كارشناسي ارشد

بوم شناسي آبزيان شيلاتي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده منابع طبيعي

1391

سيزده،81ص.: مصور،جدول،نمودار﴿رنگي﴾

ص.ع.به فارسي و انگليسي

اميدوار فرهاديان، حسن نصرا... زاده ساروي

نصراله محبوبي صوفياني، جمال الدين خواجه الدين

1/4/92

عليرضا سفيانيان، عيسي ابراهيمي

مهندسي منابع طبيعي

ID7270

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

Distribution and Concentration of Chlorophyll a using RS Technique in the Southern Coast of Caspian Sea Ehsan Oladi Email address ehsan oladi@yahoo com Date of submission 11 03 2013 Department of Natural Resources Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor Omidvar Farhadian omfarhad @cc iut ac ir Supervisor Hassan Nasrollahzadeh Saravi hnsaravi@yahoo com Abstract Caspian Sea as the largest lake in the world is an important based on ecological and economic issues Recently ecological events such as algal bloom in this region has been increased the importance of the study on the distribution and concentration of chlorophyll a The chlorophyll a as a proxy of phytoplankton biomass has fundamental importance in biological and water quality studies This study was focused on the distribution and concentration of chlorophyll a in the southern coast of Caspian Sea The amount of chlorophyll a and transparency was investigated using field measurements and remote sensing RS technique Sampling was performed in different areas of the southern coast of Caspian Sea during different seasons spring summer and fall The results of the field data in spring showed that the minimum of chlorophyll a was obtained in the east and the maximum was in the west area of southern Caspian Sea The data also showed that maximum amount of the chlorophyll a was observed in Amirabad in fall and minimum was in summer The results of MODIS and IRS satellites showed that the amount of chlorophyll a incresed while the transparency decreased from east to west part of the southern coast of Caspian Sea which was probably due to an increasing of organic matter loading The images also showed that the maximum amount of chlorophyll a was in Amirabad area during the fall which was in good agreement with the data obtained from field study This study showed that in the MODIS satellite band 2 has higher resolution and accuracy in measuring and distribution of chlorophyll a with compared to band 1 The results of this study showed that the satellite imagery followed with a field data is a usuful tool for ecological and biological changes such as distribution and amount of chlorophyll a in the Caspian Sea Keywords Chlorophyll a Transparency Satellite Remote Sensing Caspian Sea Iran

اميدوار فرهاديان، حسن نصرا... زاده ساروي

نصراله محبوبي صوفياني، جمال الدين خواجه الدين

عليرضا سفيانيان، عيسي ابراهيمي