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Remote sensing image fusion: an update in the context of Digital Earth

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International Journal of Digital Earth 2014年第2期7卷 158-172页

作者： Christine Pohl john van genderen Institute of Geospatial Science&Technology(INSTeG) Universiti Teknologi MalaysiaJohor BahruMalaysia Faculty of Geoinformation Science and Earth Observation University of TwenteEnschedeThe Netherlands

Remote sensing image fusion has come a long way from research experiments to an operational image processing *** established a framework for image fusion at the end of the 90s,we now provide an overview on the advances in image fusion during the past 15 *** information about new remote sensing image fusion techniques,recent technical developments and their influence on image fusion,international societies and working groups,and new journals and publications,we provide insight into new *** becomes clear that image fusion facilitates remote sensing image *** aims at achieving better and more reliable information to better understand complex Earth *** numerous publications during the last decade show that remote sensing image fusion is a well-established research *** experiences gained foster other technological developments in terms of sensor configuration and data ***-modal data usage enables the implementation of the concept of Digital *** order to advance in this respect,we recommend that updated guidelines and a set of commonly accepted quality assessment criteria are needed in image fusion.

关键词： remote sensing image fusion algorithms quality assessment needs

Fundamentals of satellite remote sensing:an environmental approach

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International Journal of Digital Earth 2016年第12期9卷 1275-1276页

作者： john van genderen Department of Earth Observation Science(ITC) University of TwenteEnschedeThe Netherlands

This is a very useful textbook for university teachers giving undergraduate courses in remote sensing,and for those giving courses on environmental *** is written by one of the best known European remote sensing *** book consists of nine well-structured chapters,which,together with the more than 30 pages of literature references makes it also an excellent reference for post-graduate students doing research on environmental applications of remote sensing.

关键词： courses giving approach

Modelling and predicting the spatial dispersion of skin cancer considering environmental and socio-economic factors using a digital earth approach

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International Journal of Digital Earth 2020年第6期13卷 661-682页

作者： Zohreh Masoumi john L.van genderen Mohammad Sadi Mesgari Department of Earth Sciences Institute for Advanced Studies in Basic SciencesZanjanIran Department of Earth Observation Sciences(ITC) University of TewnteEnschedeThe Netherlands GIS departement Geomatics engineering facultyKhajeh Nasir Toosi University of TechnologyGeospatial Information SystemTehranIran

Almost all causative factors of diseases depend on *** Digital Earth approach is suitable for studying diseases *** information systems integrated with statistical models can be used to model the relationship between a disease and its causative *** modelling,the most important causative factors can be extracted and the epidemiology of the disease can be *** this paper,skin cancer(the most common type of cancer)has been modelled based on its causative factors,including climate factors,people’s occupations,nutrition habits,socio-economic factors,and usage of chemical *** fit the model,a data framework was first designed,and then data were gathered and ***,the disease was modelled using Generalised Linear Models(GLM),a statistical model based on the location of the *** results of this study identify the most important causative factors together with their relative ***,a model was used to predict the change in skin cancer occurrences caused by a change in one of its causative *** work illustrates the ability of the model to predict disease ***,by using this Digital Earth approach,skincancer can be studied in all the key countries around the world.

关键词： Digital Earth skin cancer geo-statistics geospatial information systems(GIS) global climate change

Current status and future directions of geoportals

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International Journal of Digital Earth 2020年第10期13卷 1093-1114页

作者： Hao Jiang john van genderen Paolo Mazzetti Hyeongmo Koo Min Chene University of the Chinese Academy of Sciences BeijingPeople’s Republic of China Chinese Academy of Sciences Aerospace Information Research InstituteBeijingPeople’s Republic of China Faculty of Geo-Information Science and Earth Observation University of TwenteEnschedeThe Netherlands Institute of Atmospheric Pollution Research National Research CouncilFlorenceItaly Key Laboratory of Virtual Geographic Environment(Ministry of Education) Department of GeographyNanjingNanjing Normal UniversityJiangsuPeople’s Republic of China

Geoportals are a consolidated web-based solution to provide open spatial data sharing and online geo-information *** roles and possible advancements according to the Digital Earth vision and implementation require *** paper presents a review of the literature concerning geoportals and serves the following primary ***,various geoportal approaches for discovering and accessing Earth observation data and geo-information,mainly with scientific purposes,are summarized according to their characteristics and ***,current major challenges in geoportals are identified in terms of functionalities,technologies,and especially big data support,from geoportal cases of ***,based on lessons learned from the international and Chinese geoportals,solutions and recommendations for the challenges in geoportals are proposed in terms of their architectures,services,and *** results show that geoportals usually provide access to distributed data systems,offering maps,data discovery,and data *** of them are also capable of offering online analysis and processing service,enhanced semantic search engines,and dynamic visualization *** strength of geoportals could lead to a full-fledged online Digital Earth system that could provide better data sharing and dissemination solutions to the challenges posed by big data.

关键词： Geoportal(s) big Earth data Digital Earth taxonomy of geoportals geoportals in China

An efficient built-up land expansion model using a modified U-Net

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International Journal of Digital Earth 2022年第1期15卷 148-163页

作者： Hanieh Shojaei Saeed Nadi Hossein Shafizadeh-Moghadam Amin Tayyebi john van genderen Department of Geomatics Engineering University of IsfahanIsfahanIran Department of Civil and Environmental Engineering Carleton UniversityOttawaCanada Department of Water Resources Engineering and Management Tarbiat Modares UniversityTehranIran Data Science Manager Exelon UtilityChicagoILUSA Department of Earth Observation Sciences (ITC) University of TwenteEnschedeThe Netherlands

This paper introduces an improved convolutional neural network based on the conventional U-Net for simulating built-up land *** proposed method hires a pixel-wise semantic segmentation approach considering the spatial drivers affecting urbanization as data *** variables including altitude,slope,and distance from barren,crop,greenery,roads,and urban areas for 1998,2008,and 2018 were considered as covariates for the simulation of built-up land expansion in Tehran and Karaj regions in *** proposed method was compared with the random forest(RF)algorithm as the baseline *** using the area under the total operating characteristic indicated the superiority of our modified U-Net(0.87)over the RF(0.82)***,evaluation using the percent correct metric indicated that our proposed model is capable of learning neighborhood effects effectively leading to simulate built-up land expansion accurately,independent from applying a cellular automata(CA)***,the modified U-Net independent from the CA which can consider the neighborhood effects is recommended for the simulation of built-up land expansion precisely.

关键词： Land use and land cover change built-up land expansion convolutional neural networks pixel-wise semantic segmentation U-Net total operating characteristic(TOC)

The Digital Belt and Road program in support of regional sustainability

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International Journal of Digital Earth 2018年第7期11卷 657-669页

作者： Huadong Guo Jie Liu Yubao Qiu Massimo Menenti Fang Chen Paul F.Uhlir Li Zhang john van genderen Dong Liang Ishwaran Natarajan Lanwei Zhu Jiuliang Liu Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijingPeople’s Republic of China Department of Geoscience and Remote Sensing Delft University of TechnologyDelftNetherlands Department of Earth Observation Science University of TwenteEnschedeNetherlands College of Resources and Environment University of Chinese Academy of SciencesBeijingPeople’s Republic of China College of Geospatial Information Science and Technology Capital Normal UniversityBeijingPeople’s Republic of China Information Policy and Management CallicoonNYUSA

The Belt and Road initiative has a significant focus on infrastructure,trade,and economic development across a vast region,and it also provides significant opportunities for sustainable *** combined pressure of climate variability,intensified use of resources,and the fragility of ecosystems make it very challenging,however,to achieve future *** develop the path in a sustainable way,it is important to have a comprehensive understanding of these issues across nations and evaluate them in a scientific and well-informed *** this context,the Digital Belt and Road(DBAR)program was initiated as an international venture to share expertise,knowledge,technologies,and data to demonstrate the role of Earth observation science and technology and big Earth data applications to support large-scale *** this paper,we identify pressing challenges,present the research priorities and foci of the DBAR program,and propose solutions where big Earth data can make significant *** paper calls for further joint actions and collaboration to build a digital silk road in support of sustainable development at national,regional and global levels.

关键词： Digital Belt and Road program(DBAR) big Earth data Earth observation research data international cooperation sustainable development goals(SDGs)

Digital Earth 2020:towards the vision for the next decade

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International Journal of Digital Earth 2012年第1期5卷 4-21页

作者： Max Craglia Kees de Bie Davina Jackson Martino Pesaresi Gabor Remetey-Fulopp Changlin Wang Alessandro Annoni Ling Bian Fred Campbell Manfred Ehlers john van genderen Michael Goodchild Huadong Guo Anthony Lewis Richard Simpson Andrew Skidmore Peter Woodgate European Commission Joint Research Centre IspraItaly ITC University of TwenteEnschedeThe Netherlands D_Citynetwork SydneyAustralia Hungarian Association for Geo-Information(HUNAGI) BudapestHungary Center for Earth Observation and Digital Earth Chinese Academy of SciencesBeijingChina Department of Geography University at BuffaloState University of New YorkBuffaloNYUSA Canada Centre for Remote Sensing OttawaONCanada Institute for Geoinformatics and Remote Sensing University of OsnabruckOsnabruckGermany Department of Geography Center for Spatial StudiesUniversity of CaliforniaSanta BarbaraCAUSA Department of Geography and Anthropology Louisiana State UniversityBaton RougeLAUSA Nextspace AucklandNew Zealand Cooperative Research Center for Spatial Information Australia and New Zealand Land Information CouncilCanberraAustralia

This position paper is the outcome of a brainstorming workshop organised by the International Society for Digital Earth(ISDE)in Beijing in March *** argues that the vision of Digital Earth(DE)put forward by Vice-President Al Gore 13 years ago needs to be re-evaluated in the light of the many developments in the fields of information technology,data infrastructures and earth observation that have taken place *** paper identifies the main policy,scientific and societal drivers for the development of DE and illustrates the multi-faceted nature of a new vision of DE grounding it with a few examples of potential *** no single organisation can on its own develop all the aspects of DE,it is essential to develop a series of collaborations at the global level to turn the vision outlined in this paper into reality.

关键词： Digital Earth spatial data infrastructures earth observation GEOSS geobrowsers voluntary geographic information

Tree species identity and interaction determine vertical forest structure in young planted forests measured by terrestrial laser scanning

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Forest Ecosystems 2024年第3期11卷 266-275页

作者： Mengxi Wang Lander Baeten Frieke van Coillie Kim Calders Kris Verheyen Quentin Ponette Haben Blondeel Bart Muys john Armston Hans Verbeeck Q-ForestLab Department of EnvironmentFaculty of Bioscience EngineeringGhent UniversityBelgium Forest&Nature Lab Department of EnvironmentFaculty of Bioscience EngineeringGhent UniversityBelgium Earth and Life Institute Université Catholique de Louvain(UCLouvain)Louvain-la-NeuveBelgium Department of Earth&Environmental Sciences KU LeuvenBelgium Department of Geographical Sciences University of MarylandCollege ParkMDUSA

Vertical forest structure is closely linked to multiple ecosystem characteristics,such as biodiversity,habitat,and *** tree species in planted forests has the potential to create diverse vertical forest structures due to the different physiological and morphological traits of the composing tree ***,the relative importance of species richness,species identity and species interactions for the variation in vertical forest structure remains unclear,mainly because traditional forest inventories do not observe vertical stand structure in *** laser scanning(TLS),however,allows to study vertical forest structure in an unprecedented ***,we used TLS single scan data from 126 plots across three experimental planted forests of a largescale tree diversity experiment in Belgium to study the drivers of vertical forest *** plots were 9–11years old young pure and mixed forests,characterized by four levels of tree species richness ranging from monocultures to four-species mixtures,across twenty composition *** generated vertical plant profiles from the TLS data and derived six stand structural *** mixed models were used to test the effect of species richness on structural *** a hierarchical diversity interaction modelling framework,we further assessed species identity effect and various species interaction effects on the six stand structural *** results showed that species richness did not significantly influence most of the stand structure variables,except for canopy height and foliage height *** identity on the other hand exhibited a significant impact on vertical forest structure across all *** interaction effects were observed to be site-dependent due to varying site conditions and species pools,and rapidly growing tree species tend to dominate these ***,our results highlighted the importance of considering both species identity an

关键词： TreeDivNet FORBIO Stand structural complexity Terrestrial laser scanning Vertical forest structure Tree diversity Planted forests

Digital Earth in support of global change research

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International Journal of Digital Earth 2008年第1期1卷 43-65,I0004页

作者： C.Shupeng J.van genderen Institute of Remote Sensing Applications Chinese Academy of SciencesP.O.Box 9718Beijing 100101China International Institute for Geoinformation Science and Earth Observation(ITC) Department of Earth Observation Science.P.O.Box 67500 AA EnschedeThe Netherlands

The Digital Earth concept as originally proposed by former US Vice president Al Gore is now well established and widely adopted ***,many researchers world-wide are studying the causes,effects and impacts of Global *** authors commence by describing a five-step approach to the development of Digital Earth *** is followed by a detailed account of Digital Earth research and developments in *** authors then present the research results of Global Change studies carried out in China,based on the Digital Earth *** research results are based on a classification of global change *** covers the following global change situations:Forest and grassland fires in Northern China,temperate region desertification and dust storms,underground coal fires,deforestation and carbon sequestration,protection and utilisation of wetlands,Avian Influenza and the spread of diseases,Tibet Plateau uplift and sub-tropical monsoon climate region,and sea-level *** research results show that the environment does not behave in a way easily understood by the traditional disciplinary *** man is clearly a contributing factor to certain Global Change aspects,such as underground coal fires,desertification,land use changes etc.,many of the aspects of Global Change are naturally occurring phenomena which have been changing over centuries,and will continue to do so,no matter what actions we undertake to reverse these ***,in their conclusions,the authors propose that the communities involved in Digital Earth modelling and in Global Change research co-operate closer to overcome the limitations inherent in the current‘conventional’scientific approach,where scientists have very much stayed within their respective scientific *** an integrated approach will enable us to build the next level of scientific infrastructure required to understand and predict naturally occurring environmental changes,as well as

关键词： digital earth global change digital China digital earth applications