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Showing 2 results for Einali
Abbas Einali, Vahid Chegini,
Volume 6, Issue 21 (Spring 2015)
Abstract
Heat budget is one of the most important issues in sea and ocean researches. Heat budget in the sea involves four components: solar radiation, long wave radiation, direct heat transfer between air and water and heat transfer through evaporation. Meteorological parameters and sea surface temperature are the most effective factors on the Heat budget in sea. In this study, meteorological and sea surface temperature data were used for investigating the heat budget of Chabahar and Pozm bays that have economical impotence in southeast of Iran. Results of this study showed that the annual average of isolation, flux of net long wave radiation, latent heat flux and sensible heat flux in Pozm bay were 231.02, -62.48,- 77.74 , -6.62 W.m-2, respectively and in Chabahar bay were 234, -56.16, -62.43 and -4.98 W.m-2, respectively. In both bays, isolation and sensible heat flux have the highest and the lowest portion in the heat budget, respectively. Annual Average of net heat flux in Pozm and Chabahar bays were calculated +84.17 and +111.07 W.m-2, respectively. So, in this period, (84.17 and 111.07 W.m-2) energy flux flow out by exchanging water of Pozm and Chabahar bays with Gulf of Oman.
Somayeh Nodehshrifi, Saeed Gorgin, Seyed Yousef Paighambari, Hosseinali Khoshbavarrostami, Manouchehr Babanezhad, Hassan Fazli,
Volume 11, Issue 41 (Summer 2020)
Abstract
Abstract:
The purpose of Present study was the effect of resizing of Mesh Size on lenght frequency and weight averages, frequency Kilka Fish Catch in Conical Lift Net May 1997 in Babolsar fishing port by four fishing vessels during 33 torrents at a depth of 50-40 m. After identifying the species caught, the total length and weight of the specimens were measured The results showed that in all 4 nets the highest percentage of fishing frequency was from 11.5 to 12.5 cm length range. length range 7.5 - 6.5 in 7 and 9 Mesh Size; . length range 8.5 - 7.5 in 9 Mesh Size; . length range 15.5 - 14.5 in . the length range Mesh Size 7 and 16.5 - 15.5 . the length range in Mesh Size Items 7, 8 and 9 were not observed . the length frequency distribution of common Kilka Catch by funnel net was similar to 4 different Mesh Sizes. there was no significant difference between the average length of common kilka Catch with different Mesh Sizes. And the highest frequency in 8mm Mesh Size with an average frequency of 954. the results showed a correlation between the Mesh size and the total length. No significant correlation was found between the Mesh size and total length of common Kilka. Indicates that the Mesh size of the fountain does not determine the total length.
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