نتایج جستجو برای: day model can acceptably estimate snow water equivalent in not easily accessible areas therefore
تعداد نتایج: 17702874 فیلتر نتایج به سال:
abstract the present study is concerned with the syntactic deviation in hafezs poetry. poems are known to be accompanied with various linguistic deviations. these deviations may be phonological, morphological and/or syntactic. the relatively high frequency of the cases of the syntactic deviation in hafezs poems makes this rhetorical feature as a main characteristic of his poetry. this thesis, ...
A surface solar radiation parameterization based on deviations between 3-D and conventional plane-parallel radiative transfer models has been incorporated into the Weather Research and Forecasting (WRF) model to understand the solar insolation over mountain/snow areas and to investigate the impact of the spatial and temporal distribution and variation of surface solar fluxes on land-surface pro...
Snow water equivalent (SWE) is important for investigations of annual to decadal-scale changes in A and energy-water cycles. Passive microwave satellite-based retrieval algorithm estimates of SWE now sp three decades. SWE retrievals by the Advanced Microwave Scanning Radiometer for the Earth Ob (AMSR-E) onboard the NASA-Aqua satellite ended at October 2011. A critical parameter in the AM gorith...
Mountain snowpack is a critical freshwater reservoir that sustains ecosystems and provides water for hydropower, agriculture, urban uses. Accurate basin-scale estimates are essential ecosystem resources management. Our ability to predict evolution hampered by the low density of precipitation gauges in high mountain regions, as most installed easily accessible areas, which often below snowline. ...
among the low–dimensional allotropes of carbon, nanotubes and graphene have attracted very much attention from nano–science and nanotechnology specialists. they have been proposed as building blocks in nanometer device engineering. however, these structures are not defect–free. in this thesis, we focused on defective carbon nanotubes and graphene, and studied the effect of couple of very common...
Abstract. Many methods exist to model snow densification in order calculate the depth of a single layer or total cover from its mass. Most these models need be tightly integrated with an accumulation and melt many forcing variables at high temporal resolution. However, when trying (HS) on climatological timescales, which is often needed for winter tourism-related applications, preconditions can...
in civil engineering concrete is a material combined of hydraulic cement, sand, gravel and water. gravel and sand compose 60 to 70 percent of concrete. these aggregates support compression force of concrete. cement paste acts as glue to stick grain together. in bushehr factories producing aggregates do not operate according to astm standards, so that fineness modulus (fm) of the produced sands ...
the changes in todays world organization, to the extent that instability can be characterized with the most stable organizations called this afternoon. if you ever change management component, an additional value to the organization was considered, today, these elements become the foundation the organization is survival. the definition of the entrepreneur to identify opportunities to exploit a...
Snow meltwaters account for most of the yearly water budgets of many catchments in High Mountain Asia (HMA). We examine trends in snow water equivalent (SWE) using passive microwave data (1987 to 2009). We find an overall decrease in SWE in HMA, despite regions of increased SWE in the Pamir, Kunlun Shan, Eastern Himalaya, and Eastern Tien Shan. Although the average decline in annual SWE across ...
[1] Runoff generation in Alpine regions is typically affected by snow processes. Snow accumulation, storage, redistribution, and ablation control the availability of water. In this study, several robust parameterizations describing snow processes in Alpine environments were implemented in a fully distributed, physically based hydrological model. Snow cover development is simulated using differe...
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