Improving hydrology models for a changing climate

a new approach to credibility premium for zero-inflated poisson models for panel data

هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...

Surface Hydrology in Global Climate Models: How Good is It?

Land surface schemes are used in general circulation models (GCMs) to simulate the surface processes and the surface-atmosphere interactions. This paper addresses several aspects of land surface modelling from a hydrological perspective. It investigates the energy and water fluxes estimated by a typical land surface scheme (CSIRO9) for the Amazon and Mississippi River Basins, using river runoff...

The changing hydrology of a dammed Amazon

Developing countries around the world are expanding hydropower to meet growing energy demand. In the Brazilian Amazon, >200 dams are planned over the next 30 years, and questions about the impacts of current and future hydropower in this globally important watershed remain unanswered. In this context, we applied a hydrologic indicator method to quantify how existing Amazon dams have altered the...

Changing Climate, Changing Watersheds

This spectacular “blue marble” image is the most detailed true-color image of the entire Earth to date. Using a collection of satellite-based observations, scientists and visualizers stitched together months of observations of the land surface, oceans, sea ice, and clouds into a seamless, true-color mosaic of every square kilometer (.386 square mile) of our planet. These images are freely avail...

Changing Hydrology of the Himalayan Watershed