نتایج جستجو برای: having the least coastal area
تعداد نتایج: 16120723 فیلتر نتایج به سال:
Since heavy metals are considered as one of the major pollutants threatening, the main goal of this study was to bring out the concentrations of Pb, Zn and Mn in the surface sediments off Bushehr in the Persian Gulf. For this purpose, after collection of samples, the concentrations of the three metals in surface sediments were measured through the atomic absorption. The results were compared wi...
مراتع حدود نیمی از خشکی های جهان را در بر دارند و پوشش گیاهی آن در نتیجه تأثیر متقابل محیط و موجودات زنده به وجود آمده است و به عنوان یک اکوسیستم طبیعی مدیریت می شوند. علاوه بر مراتع، راه ها در عصر حاضر نیز از اجزا مهم و زیرساخت های اصلی زندگی نوین و توسعه کشورها به شمار می روند. جاده ها ساخته دست بشر هستند و جوامع گیاهی کنار جاده تحت تأثیر ساخت و ساز قرار دارند. پوشش "رودرال" به مجموعه ای از پ...
nowadays, in consideration of environmental issues and limitation of fossil fuels, there is a particular consideration of renewable energy including ocean energy, that can extracted going through various methods such as wave energy, tidal energy, salinity gradient, otec: ocean thermal energy conversion.herein this research, operation of otec method in southern caspian sea has been discussed. fo...
Pleuronectiforme fishes of the Persian Gulf coastlines along Khuzestan, Bushehr and Hormozgan provinces were morphometrically and meristically studied from April 2003 to September 2005, in order to identify species. In this experiment, 1551 fish samples were caught by trawl or collected from fish markets. The sampling was carried out in 27 regions seasonally. Thirty six traits and parameters in...
In the coastal region reduction of groundwater is one of the most important problems. Excessive exploitation from groundwater is one of the main effective reasons that will lead to the progress of saline water, especially in seasons with low precipitation. Therefore, at the current research, identification of suitable areas for artificial groundwater recharge in the Tajan plain (with an area of...
this study presents an empirical relationship of suspended sediment concentrations (sscs) inthe coastal waters, which is derived from the conventional methods, to radiometer remote sensing reflectance values (rrs) and satellite data in coastal waters of kerala. an algorithm is then developed to utilize both in situ sscs measured from conventional methods and rrs values. this algorithm is valida...
Abstract Satellite altimetry, which measures water level with global coverage and high resolution, provides an unprecedented opportunity for a wide refined understanding of the changing tides in coastal area. But its sampling frequency is too low to satisfy Nyquist requirement few data points per year are available recognize sufficient number tidal constituents capture trend changes on yearly b...
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