利用第一次全国水利普查对湖北省水面面积10 km 2以上湖泊详查的测量成果,在外业测量和内业整理的基础上,统计了50个主要湖泊高水位条件下的湖泊面积、容积、湖泊岸线长度、湖长、湖泊宽度、平均水深;分析了湖泊的水面率、补给系数、发...利用第一次全国水利普查对湖北省水面面积10 km 2以上湖泊详查的测量成果,在外业测量和内业整理的基础上,统计了50个主要湖泊高水位条件下的湖泊面积、容积、湖泊岸线长度、湖长、湖泊宽度、平均水深;分析了湖泊的水面率、补给系数、发育系数、水深、面积及容积增长率等形态特征参数。湖北省的主要湖泊形态特征集中反映了湖北省湖泊水深浅、湖底平坦、坡度平缓、容积有限、调蓄能力较弱的特性。分析成果为湖北省湖泊的未来研究、开发、利用、保护以及促进区域经济社会可持续发展提供翔实的基础资料。展开更多
By using the data of 1949 – 2001 (53 years) of Tropical Cyclone (TC) Yearbooks, statistical analyses are performed to study the climatic features of TCs making landfall and then passing through lakes (hereafter refer...By using the data of 1949 – 2001 (53 years) of Tropical Cyclone (TC) Yearbooks, statistical analyses are performed to study the climatic features of TCs making landfall and then passing through lakes (hereafter referred to as "L-TCs") in China. Results show that L-TCs can sustain a long time over land and the intensity is very strong during the course of landfall. Lakes can noticeably slow down the reduction of TC intensity, with the minimum pressure mostly maintained or decreased and the maximum velocity increased. The middle reach of the Yangtze River has the biggest TC dissipating rate as compared with the other areas where the TC is active.展开更多
Lacustrine turbidite of Chang-7 Member in the studied area consists of sihstone and fine sandstone with respect to grain size, which is feldspathic lithie sandstone, syrosem arkose and arkose with respect to mineral c...Lacustrine turbidite of Chang-7 Member in the studied area consists of sihstone and fine sandstone with respect to grain size, which is feldspathic lithie sandstone, syrosem arkose and arkose with respect to mineral constitution affected by provenance. There are such apparent signatures as lithology, sedimentary structure, sedimentary sequence and well logs, to recognize turbidite. During the paleogeographic evolution of Chang-7 Member, lake basin and deep lake are both at their maximum extent during Chang-73 stage, resulting in the deposition of Zhangjiatan shale with widespread extent and of turbidite with fragmental-like. Deep lake line is gradually moving toward lake center and turbidite sand bodies are gradually turning better with better lateral continuity, connectivity and more thickness, from stages of Chang-73, Chang-72 and Chang-7t, which can be favorable reservoir in deep-water.展开更多
文摘利用第一次全国水利普查对湖北省水面面积10 km 2以上湖泊详查的测量成果,在外业测量和内业整理的基础上,统计了50个主要湖泊高水位条件下的湖泊面积、容积、湖泊岸线长度、湖长、湖泊宽度、平均水深;分析了湖泊的水面率、补给系数、发育系数、水深、面积及容积增长率等形态特征参数。湖北省的主要湖泊形态特征集中反映了湖北省湖泊水深浅、湖底平坦、坡度平缓、容积有限、调蓄能力较弱的特性。分析成果为湖北省湖泊的未来研究、开发、利用、保护以及促进区域经济社会可持续发展提供翔实的基础资料。
基金Open Foundation for Wuhan Institute of Heavy Rain, CMA (IHR2006G09)a Natural Science Foundation of China project (40575029)
文摘By using the data of 1949 – 2001 (53 years) of Tropical Cyclone (TC) Yearbooks, statistical analyses are performed to study the climatic features of TCs making landfall and then passing through lakes (hereafter referred to as "L-TCs") in China. Results show that L-TCs can sustain a long time over land and the intensity is very strong during the course of landfall. Lakes can noticeably slow down the reduction of TC intensity, with the minimum pressure mostly maintained or decreased and the maximum velocity increased. The middle reach of the Yangtze River has the biggest TC dissipating rate as compared with the other areas where the TC is active.
文摘Lacustrine turbidite of Chang-7 Member in the studied area consists of sihstone and fine sandstone with respect to grain size, which is feldspathic lithie sandstone, syrosem arkose and arkose with respect to mineral constitution affected by provenance. There are such apparent signatures as lithology, sedimentary structure, sedimentary sequence and well logs, to recognize turbidite. During the paleogeographic evolution of Chang-7 Member, lake basin and deep lake are both at their maximum extent during Chang-73 stage, resulting in the deposition of Zhangjiatan shale with widespread extent and of turbidite with fragmental-like. Deep lake line is gradually moving toward lake center and turbidite sand bodies are gradually turning better with better lateral continuity, connectivity and more thickness, from stages of Chang-73, Chang-72 and Chang-7t, which can be favorable reservoir in deep-water.
