نتایج جستجو برای: groundwater inventories
تعداد نتایج: 34108 فیلتر نتایج به سال:
Purpose The present study aims to construct ensemble machine learning (EML) algorithms for groundwater potentiality mapping (GPM) in the Teesta River basin of Bangladesh, including random forest (RF) and subspace (RSS). Design/methodology/approach RF RSS models have been implemented integrating 14 selected condition parametres with inventories generating GPMs. GPM were then validated using empi...
Emission inventories are an essential tool for evaluating, managing, and regulating air pollution. Refinements and innovations in instruments that measure air pollutants, models that calculate emissions, and techniques for data management and uncertainty assessment are needed to enhance emission inventories. This workshop provided recommendations for improving emission factors, improving emissi...
Inventories play an important role in business cycles. Inventory build-ups add momentum to the economy during expansions, while inventory liquidations sap economic strength during recessions. In addition, because inventory fluctuations are notoriously difficult to predict, they present considerable uncertainty in assessing the economic outlook. The role of inventories in shaping the current out...
Groundwater in Bangladesh is contaminated with Arsenic, which occurs naturally in alluvial and deltaic sediments. The first official detection in 1993 and subsequent confirmation after 1995 of high levels of Arsenic in numerous shallow and deep wells in various parts of the country has raised serious health concerns. Recent investigations, though incomplete, confirm that the occurrence of Arsen...
This paper describes the development and application of web services for comparing US and global emission inventories. Web services and service oriented architectures are providing new ways to support emissions modelers and analysts as they provide a web browser based environment for accessing and analyzing emissions data and inventories. Traditional emissions data analyses that can be conducte...
In this paper we present our recent work to develop phonemic and syllabic inventories for Castilian Spanish based on the C-ORAL-ROM corpus, a spontaneous spoken Spanish with varying degrees of naturalness and in different communicative contexts. These inventories have been developed by means of a phonemic and syllabic automatic transcriptor whose output has been assessed by manually reviewing m...
آب های زیرزمینی همواره به عنوان یکی از منابع مهم و عمده تامین آب شرب و کشاورزی به ویژه در مناطق خشک و نیمه خشک مطرح بوده است. دشت بیرجند نیز با قرار گرفتن در منطقه خشک، استفاده از آب-های زیرزمینی را به عنوان مهمترین و در عین حال تنها منبع تولید آب شیرین در پیش رو دارد. در همین زمینه پیش بینی نوسانات سطح آب زیرزمینی می تواند کمک شایانی به برنامه ریزی و تصمیم گیری های بعدی جهت تامین درازمدت آب شر...
Bottom-up emission inventories provide primary understanding of sources of air pollution and essential input of chemical transport models. Focusing on SO2 and NOx, we conducted a comprehensive evaluation of two widely-used anthropogenic emission inventories over China, ECLIPSE and MIX, to explore the potential sources of uncertainties and 15 find the clues in improving emission inventories. We ...
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