نتایج جستجو برای: zarivar lake

تعداد نتایج: 42293  

Groundwater resources are considered as a largest reservoir of available freshwater in the world. According to the importance and scarcity of this precious resource, studying the groundwater quality changes is very important. Declines in water level of Urmia lake has led to increase in the salinity of water in this lake. In this paper, water level reduction effects were studied on qualitative c...

In this study, age and growth parameters of Prussian carp C. gibelio were examined using 247 specimens catched from the Goletan dam lake and 208 specimens from the Voshmgir dam lake. Sampling was carried out monthly over the period of February to September 2015. Total size distribution varied from 41 to 196 mm in length and 1.25 to 141.35 g in weigh and from 44 to 240 mm in length and 1.73 to 2...

2008
WOLFGANG OSTENDORP

The lakeside border of Phragmites reeds is under the control of many environmental factors, among which the flooding height and the degree of mechanical load by waves and washes are the most prominent. Examples from Lake Constance-Untersee show that the reed front retreats under enhanced stresses. Models are presented that describe the susceptibility of lakeside reeds to mechanical damage and t...

2003
Simone R. Alin Andrew S. Cohen

Assemblages of ostracodes from sediment cores illuminate lake-level history at decadal to centennial timescales during the late Holocene at Lake Tanganyika, East Africa. The ostracode-based lake-level curves for several cores resemble both each other and the only previously published lake-level record of comparable resolution for Lake Tanganyika during this interval, successfully reconstructing...

1998
DAVID A. R. KRISTOVICH NEIL F. LAIRD

Large spatial and temporal variations were observed in the location of the upwind cloud edge over Lake Michigan during five westerly wind lake-effect events in November 1995 through January 1996. This study examines the impacts of variations of Lake Michigan surface water temperatures (and corresponding surface fluxes) and upwind static stability on the location of the upwind edge of lake-effec...

Journal: :Remote Sensing 2016
Cheinway Hwang Yung-Sheng Cheng Jiancheng Han Ricky Kao Chi-Yun Huang Shiang-Hung Wei Haihong Wang

Lake levels in the Qinghai-Tibet Plateau (QTP) provide valuable records for climate change studies. We use two decades of measurements (January 1993–December 2014) from the TOPEX/Poseidon (T/P)-family satellite altimeters (T/P, Jason-1 and -2) to detect lake level variations at 23 lakes along their repeat ground tracks every 10 days. We employ an optimal processing technique to obtain quality m...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2008
R D Delaune R P Gambrell Aroon Jugsujinda Istavan Devai Aixin Hou

Concentration of total Hg, methyl Hg, and other heavy metals were determined in sediment collected along a salinity gradient in a Louisiana Gulf Coast estuary. Surface sediment was collected at established coordinates (n = 292) along a salinity gradient covering Lake Maurepas, Lake Pontchartrain, Lake Borgne and the Chandeleur Sound located in the 12,170 km(2) Pontchartrain basin estuary southe...

2006
Brent M. Lofgren

The land use of the Great Lakes region has changed significantly during historical times, and continues to change. As a preliminary step in investigating the overall effect that this might have on climate, attention is focused here on one forcing factor and one effect—land surface roughness length and lake effect precipitation, respectively—that are anticipated to be particularly sensitive piec...

2015
Lei Fang Lei Chen Yuan Liu Wei Tao Zhongzhe Zhang Haiying Liu Yong Tang

Lake Sayram is an ancient cold water lake locating at a mountain basin in Xinjiang, China. The lake water is brackish, alkaline, unpolluted, and abundant in SO4(2-) and Mg(2+). The lacustrine ecosystem of Lake Sayram has been intensely investigated. However, profiles of the microbial communities in the lake remain largely unknown. In this study, taxonomic compositions of the planktonic and sedi...

2011
Hilmar Hofmann Andreas Lorke Frank Peeters

[1] Sediment resuspension in lake littoral zones (nearshore region) is strongly related to the properties of the surface wavefield. The occurrence and characteristics of surface waves, near‐bottom current velocities, and related suspended sediment concentrations and properties were measured simultaneously in Lake Constance over 1 year. Wind and ship waves are distinguished on the basis of their...

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