سامانه همایش های دانشگاه جیرفت

صفحه اصلی / سومین همایش بین المللی و چهارمین همایش ملی کشاورزی، محیط زیست و امنیت غذایی

Identifying Locations Prone to Algal Blooms using Satellite Imagery

نویسندگان :

Hamid Bagheri¹ Goli Sedighi²

1- دانشگاه ملی مهارت 2- دانشگاه هرمزگان

کلمات کلیدی :

Bloom of algae،pollution،Persian Gulf،GIS

چکیده :

Recently, the Persian Gulf and the Sea of Oman have experienced a bloom of harmful algae (Harmful Algal Blooms (HABs)), especially during the warm months. Algal bloom, as a toxic phenomenon, prevents oxygen from entering the deeper layers of water, consuming the oxygen necessary for the survival of living beings and disrupting their living conditions, leading to multiple problems for coastal residents regarding water quality, desalination facilities, the tourism industry, and other economic and health issues. The impacts of algal bloom will also harm people in the region economically and health-wise, in addition to affecting animals and aquatic life. Influencing factors in the occurrence of this phenomenon, aside from natural factors, include the influx of human wastewater, industrial chemicals, and agricultural substances, which have led to the pollution of beaches and increased water temperature, possibly contributing to algal bloom in these shores. Therefore, identifying areas affected by this phenomenon along the coasts and investigating the contributing and exacerbating factors is important for the purpose of predicting, preventing, and controlling it. It is clear that after the occurrence of this phenomenon, given its extent, containment can be very difficult, costly, and sometimes impossible; therefore, attention and diligence in implementing the best prevention methods against this phenomenon seem necessary. Research results showed that the increase in water temperature, along with other causes, can positively affect algal growth, and the highest concentrations of algae are observed near the shores where the water is shallower and the sediments are sandy.