|
The Umba River is located in northeastern Tanzania in Tanga Region. It rises in Schageiuforest (Shagayu) in the West Usambara Mountains at 2,000 m altitude and flows on the north side of the mountain range to the east.〔http://www.ub.bildarchiv-dkg.uni-frankfurt.de/Bildprojekt/Lexikon/php/suche_db.php?suchname=umba〕 At Lelwa it empties the Mbalamu River, which comes from the extreme north of the Usambara Mountains, and the Mglumi River into the Umba. Just before the Umba flows into the Indian Ocean, it cross the border to Kenya. The mouth itself marks the most eastern point on the border between Tanzania and Kenya, which they largely made in a straight line to the northwest towards Lake Victoria in the 19th Century. On the upper reaches of the river in the mid-1960s rich deposits of precious stones, including sapphires and Spessartine, were discovered. Also on the river is the Umba River Game Reserve, a wildlife reserve that includes along with the Mkomazi Game Reserve, about 2,600 km². ==Hydrometry== The flow of the river observed over 40 years (1963-2003) in Mbuta a town about 40 km above the mouth. The average monthly flow of the river Umba hydrological station of Mbuta (in m³ / s ) (Calculated using the data for a period of 30 years, 1954–84)〔http://www.worldwatercongress2008.org/resource/authors/abs624_article.pdf〕 Colors= id:lightgrey value:gray(0.8) id:darkgrey value:gray(0.3) id:sfondo value:rgb(1,1,1) id:barra value:rgb(0.6,0.8,0.9) ImageSize = width:600 height:220 PlotArea = left:40 bottom:40 top:20 right:20 DateFormat = x.y Period = from:0 till:60 TimeAxis = orientation:vertical AlignBars = justify ScaleMajor = gridcolor:lightgrey increment:20 start:0 ScaleMinor = gridcolor:lightgrey increment:10 start:0 BackgroundColors = canvas:sfondo BarData= bar:Jan text:January bar:Fév text:February bar:Mar text:Marz bar:Avr text:April bar:Mai text:May bar:Jun text:June bar:Jul text:July bar:Aoû text:August bar:Sep text:Sept. bar:Oct text:Oct. bar:Nov text:Nov. bar:Déc text:Dec. PlotData= color:barra width:30 align:left bar:Jan from:0 till: 45 bar:Fév from:0 till: 10 bar:Mar from:0 till: 5 bar:Avr from:0 till: 8 bar:Mai from:0 till: 7 bar:Jun from:0 till: 4 bar:Jul from:0 till: 2 bar:Aoû from:0 till: 1 bar:Sep from:0 till: 1 bar:Oct from:0 till: 2 bar:Nov from:0 till: 3 bar:Déc from:0 till: 18 PlotData= bar:Jan at: 45 fontsize:S text: 45 shift:(-10,5) bar:Fév at: 10 fontsize:S text: 10 shift:(-10,5) bar:Mar at: 5 fontsize:S text: 5 shift:(-10,5) bar:Avr at: 8 fontsize:S text: 8 shift:(-10,5) bar:Mai at: 7 fontsize:S text: 7 shift:(-10,5) bar:Jun at: 4 fontsize:S text: 4 shift:(-10,5) bar:Jul at: 2 fontsize:S text: 2 shift:(-10,5) bar:Aoû at: 1 fontsize:S text: 1 shift:(-10,5) bar:Sep at: 1 fontsize:S text: 1 shift:(-10,5) bar:Oct at: 2 fontsize:S text: 2 shift:(-10,5) bar:Nov at: 3 fontsize:S text: 3 shift:(-10,5) bar:Déc at: 18 fontsize:S text: 18 shift:(-10,5) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Umba River (Tanzania)」の詳細全文を読む スポンサード リンク
|