Comparative Study on Sediment Delivery from Two Small Catchments within the Lena River, Siberia

Climate, permafrost and land cover, Lena River Delta, Siberia

Introduction Conclusions References

Estimation of river discharge, propagation speed, and hydraulic geometry from space: Lena River, Siberia

[1] Moderate Resolution Imaging Spectroradiometer (MODIS)–derived measurements of Lena River effective width (We) display a high predictive capacity (r 2 = 0.81, mean absolute error < 25%) to forecast downstream discharge conditions at Kusur station, some 8 d and 700 km later. Satellite-derived mean flow propagation speed (88 km d 1 or 1.01 m s ) compares well with that estimated from ground da...

Using Sediment Deposited in Small Reservoirs to Quantify Sediment Yield in Two Small Catchments of Iran

the effect of traffic density on the accident externality from driving the case study of tehran

در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...

Tracing suspended sediment sources in catchments and river systems.

Recent years have seen a growing awareness of the wider environmental significance of the suspended sediment loads transported by rivers and streams. This includes the importance of fine sediment in the transport of nutrients and contaminants, including phosphorus (P). Sediment source exerts a key control on the physical and geochemical properties of suspended sediment, including its P content,...