299 research outputs found

    Web GIS to support irrigation management: a prototype for SAGRA network, Alentejo Portugal

    Get PDF
    Dissertation submitted in partial fulfilment of the requirements for the Degree of Master of Science in Geospatial TechnologiesAn efficient water management, not only allows significant savings in costs of irrigation, but also an effective control on the quality of products, which can have obvious consequences on income operation and reducing the environmental impact of irrigation. As the Internet is becoming the easiest way of information distribution, irrigation management system can also be benefitted with it. Integrating GIS functionality with internet capacity will redefine the way of decision making, sharing and processing of information. In irrigation systems weather plays an imperative role in decision making, implementing and forecasting. Temperature, humidity, precipitation, and solar radiation are the most important parameters to calculate evapotranspiration by which crop water requirement can be determined. SAGRA (Sistema Agrometeorológico para a Gestão da Rega no Alentejo) network is providing information to the farmers through web but still lacks the use of GIS in their information to decision support system. Irrigation management support system can be benefitted with the use of Web GIS. In this thesis, web based GIS is designed using popular open source tools and software. Using data from automatic weather station maps are produced using Geo-statistical interpolation techniques and published in web map. These maps can be viewed with popular online maps like Google maps, Microsoft Bing and Openstreet maps. Animated weather maps are also created which are useful for visualizing changing pattern of weather parameters and water requirement over time

    Drones and Geographical Information Technologies in Agroecology and Organic Farming

    Get PDF
    Although organic farming and agroecology are normally not associated with the use of new technologies, it’s rapid growth, new technologies are being adopted to mitigate environmental impacts of intensive production implemented with external material and energy inputs. GPS, satellite images, GIS, drones, help conventional farming in precision supply of water, pesticides, fertilizers. Prescription maps define the right place and moment for interventions of machinery fleets. Yield goal remains the key objective, integrating a more efficient use or resources toward an economic-environmental sustainability. Technological smart farming allows extractive agriculture entering the sustainability era. Societies that practice agroecology through the development of human-environmental co-evolutionary systems represent a solid model of sustainability. These systems are characterized by high-quality agroecosystems and landscapes, social inclusion, and viable economies. This book explores the challenges posed by the new geographic information technologies in agroecology and organic farming. It discusses the differences among technology-laden conventional farming systems and the role of technologies in strengthening the potential of agroecology. The first part reviews the new tools offered by geographic information technologies to farmers and people. The second part provides case studies of most promising application of technologies in organic farming and agroecology: the diffusion of hyperspectral imagery, the role of positioning systems, the integration of drones with satellite imagery. The third part of the book, explores the role of agroecology using a multiscale approach from the farm to the landscape level. This section explores the potential of Geodesign in promoting alliances between farmers and people, and strengthening food networks, whether through proximity urban farming or asserting land rights in remote areas in the spirit of agroecological transition. The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons 4.0 license

    ISPRS-SHY – OPEN DATA COLLECTOR FOR SUPPORTING GROUND TRUTH REMOTE SENSING ANALYSIS

    Get PDF
    Abstract. The 2021 Scientific Initiatives in ISPRS funded this project called ISRS-SHY from "SHare mY ground truth". It was intended as a collector of geographic data to support image analysis by sharing the necessary ground truth data needed for rigorous analysis. Regression and classification tasks that use remote sensing imagery necessarily require some control on the ground. The rationale behind this project is that often data on the ground is collected during projects, but is not valued by sharing across projects and teams globally. Internet has improved the way that data are shared, but there are still limitations related to discoverability of the data and its integrity. In other words, data are usually kept in local storage or, if in an accessible server, they are not documented and therefore they will not be picked up during search. In this initiative we created a portal using the Geonode environment to provide a hub for sharing data between research groups and openly to the community. The portal was then tested within the framework of three projects, with several participants each. The data that was uploaded and shared covered all types of geographic data formats and sizes. Further sharing was done in the context of teaching activities in higher education.The results show the importance of creating easy means to find data and share it across stakeholders. Qualitative results are discussed, and future steps will focus on quantitative assessment of the portal's usage, e.g. number of registered users in time, number of visits, and other key performance indicators. The results of this project are to be considered also in light of the effort in the scientific community to make research data available, i.e. FAIR - Findability, Accessibility, Interoperability, and Reuse of digital assets

    Geospatial Data for Sustainable Development in Mozambique: Challenges on Spatial Data Infrastructure Development & Ecosystem Service Integration in Decision Making

    Get PDF
    A thesis submitted in partial fulfillment of the requirements for the degree of Doctor in Information Management, specialization in Geographic Information SystemsThe Agenda 2030 challenges the countries to use and produce new spatial data to support the path to Sustainable Development (SD). This requires development and adoption of Spatial Data Infrastructure (SDI), and the production of new relevant spatial data to support implementation, monitoring and reporting the progress on the targets on Sustainable Development Goals (SDGs). The importance of access to spatial data for development and resource management is widely acknowledged worldwide. Unrestricted, reliable and efficient access to accurate, timely, and upto- date spatial data may be achieved through a Spatial Data Infrastructure (SDI). Thus, most developed countries implemented and continue to develop their SDI. The Ecosystem Service (ES) is also crucially for SD and the concept needs to be expressed and communicated effectively to be successfully integrated into decision making. This study assessed the challenges and opportunities on SDI development and analyzed the documents relevant to LUP process and implementation. On the SDI, we identified and characterized through a survey the government institutions producing, sharing, and using spatial data in the country to estimate their potential contribution to the development of the Mozambican SDI. On the integration of ES into LUP, we conducted a review of relevant documents to Mozambique’s spatial planning by performing a content analysis based on ES categories. Based on the possible contribution of the institutions producing and using spatial data, we proposed an SDI for Mozambique based on four pillars: i) organizational framework; ii) legal framework; iii) technical framework; and iv) accessibility. The periodical revision of tools and participatory approaches in LUP opens opportunities for integrating ES into LUP processes. This integration could be achieved by establishing a SEA legal framework based on LUP and Environment legal frameworks assisted by a set of common planning tools that consider ES as an additional indicator applied to spatial planning in Mozambique

    The Economic Valuation of Ecosystem Services of Biodiversity Components in Protected Areas: A Review for a Framework of Analysis for the Gargano National Park

    Get PDF
    Protected areas play an important role in the conservation and protection of biodiversity of particular territories, especially of ecosystems that provide resources for living organisms, including human beings. Different studies highlight the importance of biodiversity and its associated benefits in terms of ecosystem services of protected areas. The economic assessment of ecosystem services and biodiversity becomes a viable solution to help the policy maker to make decisions on the environmental preservation of these areas according to the Agenda 2030 for Sustainable Development. Nonetheless, very few studies provide an economic evaluation of the benefits of protected areas. To advance the current debate on the economic evaluation of the benefits provided by protected areas, the present paper purposes an integrated approach. It presents an overview of main ecosystem services’ mapping techniques currently available to researchers and policy makers and offers a systematic review carried out for the period 2015–2020 at an international level. The main findings are particularly attractive for the Gargano National Park (GNP) in the south of Italy, which is recognised as being a biodiversity hot spot at global level. The current study provides useful guidance for the assessment of trade-offs, the support to policy makers, and the provision of efficient allocation of public resources for protected area

    A cloud-based GiScience learning approach to spanish national parks

    Get PDF
    P. 6-20GIScience learning is the main aim of the GI Learner project, which can be easily achieved using the cloud: open data online from Spatial Data Infrastructures (SDI of Spain). School on the Cloud network has promoted a cloud-based learning approach by dealing with access, sharing and reusability of cloud resources. Thus, based on the results of two European projects, the objective of the article is to focus on improving awareness of sustainability by building itineraries based on places of interest within the best protected areas in Spain, the National Parks, using SDI geoinformation. The methodology of (re)using open data online from SDI by linking cloud knowledge with real Earth and the three selected Parks for a better spatial understanding has been shown to be a very useful way to understand territory. Thus, to improve the learning of sustainable management of National Parks by using cloud computing and SDI it may well prove to be an essential part of environmental education and social responsibility.S

    Multi-temporal analysis of vernacular farm buildings and rural landscape through historical cartography and 3-D GIS

    Get PDF
    Farm buildings, designed over the centuries in order to fulfil their primary agricultural goal, now often constitute a widespread heritage of vernacular constructions, endowed with an unreplaceable architectural value. Together with the concurrent action of natural events, human interventions and changes in natural cycles, they play indeed a central role in shaping the rural landscape. In this paper, thanks to the use of a Geographic Information System in which historical cartography, aerial photos and other ancillary dataset have been implemented, the land use of the area of “Monte Vulture and Monticchio lakes” and its environmental components have been investigated through a 3-D modelling of the relevant rural landscape and its main features. This area, located in the Basilicata Region (southern Italy), is one territory with a great scenic interest, having been recognized as a landscape heritage thanks to some specific cultural and historical elements. This rural landscape also includes – similar as many other Italian rural landscapes - some vernacular constructions having a high historical and architectural value, that have contributed to create this traditional rural landscape. The analysis has involved a multi-temporal comparison of the vernacular constructions located in the study area, so as to evaluate the built heritage evolution in the framework of its rural landscape, as well as its interactions with the surrounding territory. With this aim, the historical reconstruction of the landscape before and after the year 1900 has been conducted through implementing digital terrain models enriched by draping land cover pictures over them. The results which have been obtained enabled an evaluation in a scenic way of the morphological and vegetation variations during time of the rural landscape, allowing a virtual “time jump” back to periods when digital aerial photography was not yet existing. Thanks to these new technologies, able to exploit information included into old cartographic supports, some suitable tools have been then developed, skilled to support the sustainable planning and management of rural built heritage, enabling an analysis of their possible valorisation for cultural tourism purposes as well

    Report of the Working Group on Marine Habitat Mapping (WGMHM) [3–7 May 2010, Calvi, Corsica, France]

    Get PDF
    Contributor: Pål Buhl Mortense
    corecore