11,010 research outputs found

    Weather Station with Web Interface and SNMP Support

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    Import 05/08/2014Meteorologie je věda zabývající se studiem počasí. Lidé využívají poznatky o počasí již několik tisíc let. Zařízení měřící meteorologické veličiny se nazývají meteostanice. Na trhu je k dostání velké množství komerčních meteostanice, většina z nich však nemá otevřený software. Cílem diplomové práce je teoretický návrh a následná realizace meteostanice. Výstupní data z meteostanice jsou napojena na síťový protokol SNMP a vizualizována pomocí webového rozhraní. Na výrobu meteostanice je potřeba pořídit meteorologická čidla a základní počítač. V první části práce se nachází popis a důvod výběru jednotlivých součástek. Komunikace všech prvků mezi sebou je popsána v dalších kapitolách práce. Následující část práce se věnuje popisu a napojením na protokol SNMP a webové rozhraní Cacti. Na konci práce je několik stránek věnovaných konstrukci a vzhledu meteostanice.Meteorology is science that studies weather. For thousands of years people have been using knowledge of weather. Device that measure meteorological quantities is called meteorological station. There are many commercial meteorological stations available on the market, but they usually do not have open source software. The aim of the thesis is theoretical layout and subsequent realization of a meteorological station. The outcome data from the meteorological station are connected to network protocol SNMP and visualized via web interface. For the construction of the meteorological station it is necessary to obtain meteorological sensors and basic computer. The first part of the thesis deals with description and reasons for choosing components. Communication between all of the parts is described in the next chapters of the thesis. The following part of the paper is dedicated to description and connection to the SNMP protocol and web interface Cacti. The last several pages of the thesis are devoted to construction and the design of the meteorological station.460 - Katedra informatikyvýborn

    Analysis of landfill gas migration by use of autonomous gas monitoring platforms

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    Autonomous gas sensing platforms have been developed to facilitate the long-term continuous monitoring of landfill gas concentrations. The analysis of a municipal landfill site in Ireland forms part of an on-going collaboration with the Environmental Protection Agency in monitoring the migration of greenhouse gases, i.e. methane and carbon dioxide, emanating from the landfill site. Target gas concentrations were automatically recorded via infrared gas sensors calibrated for the respective gases, with this data being logged remotely every six hours to a central base-station. The autonomous platform with its web-based portal interface provides a flexible alternative to the existing labor-intensive, manual monitoring routines. Frequent occurrences of 70% v/v methane and 6% v/v carbon dioxide were substantially in breach of the regulatory limits of 1.5% v/v and 1.0% v/v, respectively. These excessive levels of gas migration were analyzed with respect to SCADA flare data, on-site measurements and meteorological data

    Development of Distributed Research Center for analysis of regional climatic and environmental changes

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    We present an approach and first results of a collaborative project being carried out by a joint team of researchers from the Institute of Monitoring of Climatic and Ecological Systems, Russia and Earth Systems Research Center UNH, USA. Its main objective is development of a hardware and software platform prototype of a Distributed Research Center (DRC) for monitoring and projecting of regional climatic and environmental changes in the Northern extratropical areas. The DRC should provide the specialists working in climate related sciences and decision-makers with accurate and detailed climatic characteristics for the selected area and reliable and affordable tools for their in-depth statistical analysis and studies of the effects of climate change. Within the framework of the project, new approaches to cloud processing and analysis of large geospatial datasets (big geospatial data) inherent to climate change studies are developed and deployed on technical platforms of both institutions. We discuss here the state of the art in this domain, describe web based information-computational systems developed by the partners, justify the methods chosen to reach the project goal, and briefly list the results obtained so far

    Climate Services for Resilient Development (CSRD) Partnership’s work in Latin America

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    The Climate Services for Resilient Development (CSRD) Partnership is a private-public collaboration led by USAID, which aims to increase resilience to climate change in developing countries through the development and dissemination of climate services. The partnership began with initial projects in three countries: Colombia, Ethiopia, and Bangladesh. The International Center for Tropical Agriculture (CIAT) was the lead organization for the Colombian CSRD efforts – which then expanded to encompass work in the whole Latin American region

    Environmental science applications with Rapid Integrated Mapping and analysis System (RIMS)

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    The Rapid Integrated Mapping and analysis System (RIMS) has been developed at the University of New Hampshire as an online instrument for multidisciplinary data visualization, analysis and manipulation with a focus on hydrological applications. Recently it was enriched with data and tools to allow more sophisticated analysis of interdisciplinary data. Three different examples of specific scientific applications with RIMS are demonstrated and discussed. Analysis of historical changes in major components of the Eurasian pan-Arctic water budget is based on historical discharge data, gridded observational meteorological fields, and remote sensing data for sea ice area. Express analysis of the extremely hot and dry summer of 2010 across European Russia is performed using a combination of near-real time and historical data to evaluate the intensity and spatial distribution of this event and its socioeconomic impacts. Integrative analysis of hydrological, water management, and population data for Central Asia over the last 30 years provides an assessment of regional water security due to changes in climate, water use and demography. The presented case studies demonstrate the capabilities of RIMS as a powerful instrument for hydrological and coupled human-natural systems research
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