| 词条 | Ras Rakan |
| 释义 |
LocationThe islet is nearly 1 ½ miles from the shore, and may be reached by wading through low water. The northernmost town of Qatar, Ar Ru'ays, lies 2 ½ miles south-east from the islet.[2] If approached at from a northward direction, Ar Ru'ays becomes visible before Ras Rakan is spotted.[3] DescriptionJazirat Ras Rakkan is a very low, T-shaped islet, with tufts of grass on it.[2] There are some small mangroves on the southern side of it.[4] It is nearly 2 miles in length east to west, and extremely narrow. The T-head, at its western end, is 1 mile long.[2] HydrologyIn a 2010 survey of Ras Rakan's coastal waters conducted by the Qatar Statistics Authority, it was found that its average depth was {{convert|3.5|meters}} and its average pH was 7.74. Furthermore, the waters had a salinity of 48.18 psu, an average temperature of 19.61°C and 4.86 mg/L of dissolved oxygen.[5] References1. ^{{cite book|last=Bird|first=Eric|title=Encyclopedia of the World's Coastal Landforms|url=https://books.google.com/books?id=Mfo5TPb7SDsC&pg=PA1038|publisher=Springer|year=2010|page=1038|isbn=978-1402086380}} {{coord|26|11|1|N|51|12|56|E|display=title|region:QA_type:city_source:wikimapia}}{{Qatar-geo-stub}}2. ^1 2 3 {{cite web|url=http://www.qdl.qa/en/archive/81055/vdc_100023727635.0x000023|title='Gazetteer of Arabia Vol. II' [1557] (636/688)|publisher=Qatar Digital Library|year=1917|accessdate=31 December 2015}} This article incorporates text from this source, which is in the public domain. 3. ^{{cite web|url=http://www.qdl.qa/en/archive/81055/vdc_100023623199.0x000046|title=‘Persian Gulf pilot comprising the Persian Gulf and its approaches from Ras al Hadd, in the south-west, to Cape Monze, in the east.’ [132v] (269/404)|publisher=Qatar Digital Library|year=1932|accessdate=31 December 2015}} This article incorporates text from this source, which is in the public domain. 4. ^{{cite book|author=|title=The Persian Gulf pilot: comprising the Persian Gulf, Gulf of Omán; and Makran coast|publisher=Hydrographic Dept|location=Great Britain|url=https://books.google.com/books?id=m5ItAQAAMAAJ&pg=PA127|page=127|year=1890}} 5. ^{{cite web|url=https://www.mdps.gov.qa/en/knowledge/Publications/Economic/Eco_Qatar_Infrastructure_Statistics_En_2012.pdf|title=Qatar Infrastructure Statistics|publisher=Qatar Statistics Authority|page=29|date=May 2012|accessdate=18 March 2019}} 3 : Al Shamal|Geography of Qatar|Islands of Qatar |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。