Use of Shields stress to reconstruct and forecast changes in river metabolism

نویسندگان

  • GREG CRONIN
  • JAMES H. MCCUTCHAN
  • JOHN PITLICK
  • James H. McCutchan
چکیده

GREG CRONIN*, JAMES H. MCCUTCHAN JR , JOHN PITLICK ‡ AND WILLIAM M. LEWIS JR † *Department of Biology, University of Colorado at Denver and Health Sciences Center, Denver, CO, U.S.A. Center for Limnology/Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, CO, U.S.A. Department of Geography, University of Colorado at Boulder, Boulder, CO, U.S.A.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Investigation Resistance of Sediment Particle to Erosion in Saraskanchai River by Use of Mathematical Methods

In addition to Erodibility of sediment particles in river increase river sediment load, they are important factors in morphological changes. In the rivers that erodibility is high, trend of morphological changes are intensive that in this case, river is unstable. On the contrary, it will lead stability and low changes of the river. Study area of this research is Saraskanchay that has been locat...

متن کامل

Analysis and forecast of Pontic shad (Alosa immaculata) catch in the Danube River

The relationship between the Lower Danube River level and Romanian annual catches of Pontic shad (Alosa immaculata, Bennett 1835) were analyzed. For analysis of long term data on the Danube River water level and Pontic shad catch, combinations of different methods were applied using statistical programs, SPSS 13.0 and MATLAB 6. Periodograms, containing cyclic patterns, were obtained using Fouri...

متن کامل

Evaluation of Land Use Changes order to Desertification Monitoring Using Remote Sensing Techniques

Introduction Trend of increasing natural resource degradation in many parts of the world, is a serious threat to humanity. Desertification is one of the manifestations of the damage that has already suffered as a scourge of many countries, including developing countries are. At present, remote sensing is one of technologies with timeliness data and accuracy suitable for monitoring land use c...

متن کامل

Forecast of climatologically events using improved grey model (Case Study: Qazvin Province Climatology)

The theory of grey system is used when sufficient information of the community under study is not in hand. The grey forecast model is proper when the information variety is fix and certain. Grey model can apply some additional computations to improve forecasting activities when data is insufficient. Through using improved grey model, the assessment error decreases significantly. This study made...

متن کامل

Analysis of Flood Hydraulic in Alluvial Fan River using CCHE2D Case Study: (Roodan River)

In this study the advantages and importance of a numerical model to predict and monitor the processes governing hydraulic changes alluvial fan river is discussed. For this reason and because of the importance of flow velocity and shear stresses resulting from the erosion of the river, A two-dimensional numerical model to simulate the CCHE2D river changes ranging from Roodan River is used. In th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007