نتایج جستجو برای: مدل gldas
تعداد نتایج: 120146 فیلتر نتایج به سال:
Flooding is projected to increase with climate change in many parts of the world. Floods in cold regions are commonly a result of snowmelt during the spring break-up. The peak river flow (Qpeak) for the Mackenzie River, located in northwest Canada, is modelled using the Gravity Recovery and Climate Experiment (GRACE) satellite observations. Compared with the observed Qpeak at a downstream hydro...
The measurement of total basin discharge along coastal regions is necessary for understanding the hydrological and oceanographic issues related to the water and energy cycles. However, only the observed streamflow (gauge-based observation) is used to estimate the total fluxes from the river basin to the ocean, neglecting the portion of discharge that infiltrates to underground and directly disc...
By using a coupled land surface-atmosphere model with initial conditions of varying resolution and ensembles of systematically changed soil moisture, convective-scale simulations of a typical frontal rainstorm in the Yangtze River Basin are collected to investigate: (1) effects of different datasets on the simulated frontal mesoscale convective systems (MCSs); (2) possible linkages between soil...
Sea level rise related to the melting and thinning of the Greenland Ice Sheet (GrIS), a subject of growing concern in recent years, will eventually affect the global climate. Although the melting of snow on the GrIS is actively monitored by passive microwave remote sensing, very few studies have estimated the seasonal GrIS snow depth using this technique. In this study, to estimate seasonal sno...
بخش اورژانس یکی از شلوغترین بخشهای یک بیمارستان است و بهبود عملکرد این تأثیر بسیاری در کیفیت ارائه خدمات دارد. اخیراً پژوهشگران بهدلیل تمرکز مهندسی تابآوری مدیریت ناب بر کارایی سیستمها توجه بسیار زیادی به دو دیدگاه کنار یکدیگر داشتهاند. هدف پژوهش، رویکردی یکپارچه برای ارزیابی مبتنی شاخصهای با ارتقای رضایت شغلی کاهش هزینههای درمانی واحد خصوصی است. منظور، ابتدا شناسایی مؤثر، مدل مفهومی مس...
با توجه به اهمیت حذف یون استرانسیم موجود در پسابهای هستهای، کار حاضر ضمن سنتز لیگاندهای هیدروکسی بنزآلدهید پروپیل تری اتوکسی سیلان (Si-HL3(EtO)) و پیریدیل متیلیدین (Si-L3(EtO)) بررسی خصوصیات نانو ذرات سیلیکای اصلاح شده این لیگاندها عنوان جاذب جامد از محلول آبی پرداخته شد پارامترهایی مانند pH، زمان، جرم جاذب، دما یونهای مزاحم مورد آزمایش قرار گرفت. رفتار جذبی جاذبها نشان داد سطح توانای...
This paper aims to address the limitations of distribution number and uniformity Continuously Operating Reference Stations (CORS) their impact on reliability inverting regional groundwater storage (GWS) based Green’s function method using global navigation satellite system (GNSS) data. A fusion inversion GWS changes from GNSS Gravity Recovery Climate Experiment (GRACE) was proposed in this pape...
The large-scale quantification of accurate evapotranspiration (ET) time series has substantially been developed in recent decades using automated approaches based on remote sensing data. However, there are still several model-related uncertainties that require precise assessment. In this study, the Surface Energy Balance Algorithm for Land (SEBAL) and meteorological data from Global Data Assimi...
The spatial and temporal distribution of precipitation is great importance for the rain-fed agricultural production socioeconomics Mato Grosso (MT), Brazil. MT has a sparse network ground rain gauges that limits effective use information sustainable water resources in region. Several gridded products from remote sensing reanalysis land surface models are currently available can enhance such inf...
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