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ISPRS International Journal of Geo-Information, Volume 10, Issue 2

February 2021 - 63 articles

Cover Story: Crowdsourcing is widely used for air pollution monitoring with low-cost sensors measuring particulate matter concentration. We introduced social innovation into the air quality assessment area, which is based on citizen-driven air pollution symptom mapping (APSM). With this method, the citizens report their health symptoms related to air quality. They use the mobile survey app incorporated into GeoWeb, presenting the collected data in real time. The main challenge of the crowdsourcing method is unstructured data. Thus, we proposed the data quality assessment (QA) framework for health-symptom-based projects. It consists of several logic-based QA mechanisms implemented into GeoWeb, which make up a QA system reducing data bias. This way, citizens are engaged in creating a spatial model of city wellbeing which is consistent and reliable. View this paper
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Articles (63)

  • Feature Paper
  • Review
  • Open Access
86 Citations
10,945 Views
33 Pages

Geoinformation Technologies in Support of Environmental Hazards Monitoring under Climate Change: An Extensive Review

  • Andreas Tsatsaris,
  • Kleomenis Kalogeropoulos,
  • Nikolaos Stathopoulos,
  • Panagiota Louka,
  • Konstantinos Tsanakas,
  • Demetrios E. Tsesmelis,
  • Vassilios Krassanakis,
  • George P. Petropoulos,
  • Vasilis Pappas and
  • Christos Chalkias

Human activities and climate change constitute the contemporary catalyst for natural processes and their impacts, i.e., geo-environmental hazards. Globally, natural catastrophic phenomena and hazards, such as drought, soil erosion, quantitative and q...

  • Article
  • Open Access
17 Citations
5,496 Views
22 Pages

Transport planning strategies regard cycling promotion as a suitable means for tackling problems connected with motorized traffic such as limited space, congestion, and pollution. However, the evidence base for optimizing cycling promotion is weak in...

  • Article
  • Open Access
59 Citations
8,588 Views
20 Pages

IdroGEO: A Collaborative Web Mapping Application Based on REST API Services and Open Data on Landslides and Floods in Italy

  • Carla Iadanza,
  • Alessandro Trigila,
  • Paolo Starace,
  • Alessio Dragoni,
  • Tommaso Biondo and
  • Marco Roccisano

The new national IdroGEO web platform allows the navigation, social sharing and download of data, maps, reports of the Italian Landslide Inventory, national hazard maps, and risk indicators. It is a tool for communication and dissemination of informa...

  • Article
  • Open Access
10 Citations
3,262 Views
19 Pages

A New Approach to Measuring the Similarity of Indoor Semantic Trajectories

  • Jin Zhu,
  • Dayu Cheng,
  • Weiwei Zhang,
  • Ci Song,
  • Jie Chen and
  • Tao Pei

People spend more than 80% of their time in indoor spaces, such as shopping malls and office buildings. Indoor trajectories collected by indoor positioning devices, such as WiFi and Bluetooth devices, can reflect human movement behaviors in indoor sp...

  • Article
  • Open Access
3 Citations
3,387 Views
32 Pages

Production, Validation and Morphometric Analysis of a Digital Terrain Model for Lake Trichonis Using Geospatial Technologies and Hydroacoustics

  • Triantafyllia-Maria Perivolioti,
  • Antonios Mouratidis,
  • Dimitrios Terzopoulos,
  • Panagiotis Kalaitzis,
  • Dimitrios Ampatzidis,
  • Michal Tušer,
  • Jaroslava Frouzova and
  • Dimitra Bobori

Covering an area of approximately 97 km2 and with a maximum depth of 58 m, Lake Trichonis is the largest and one of the deepest natural lakes in Greece. As such, it constitutes an important ecosystem and freshwater reserve at the regional scale, whos...

  • Technical Note
  • Open Access
55 Citations
7,159 Views
18 Pages

A Fine-Scale Mangrove Map of China Derived from 2-Meter Resolution Satellite Observations and Field Data

  • Tao Zhang,
  • Shanshan Hu,
  • Yun He,
  • Shucheng You,
  • Xiaomei Yang,
  • Yuhang Gan and
  • Aixia Liu

Mangrove forests are important ecosystems in the coastal intertidal zone, but China’s mangroves have experienced a large reduction in area from the 1950s, and the remaining mangrove forests are exhibiting increased fragmentation. A detailed mangrove...

  • Article
  • Open Access
107 Citations
6,259 Views
19 Pages

Landslide susceptibility mapping (LSM) could be an effective way to prevent landslide hazards and mitigate losses. The choice of conditional factors is crucial to the results of LSM, and the selection of models also plays an important role. In this s...

  • Article
  • Open Access
77 Citations
19,701 Views
18 Pages

Analysis of long-term rainfall trends provides a wealth of information on effective crop planning and water resource management, and a better understanding of climate variability over time. This study reveals the spatial variability of rainfall trend...

  • Article
  • Open Access
13 Citations
4,675 Views
17 Pages

Suitable graphic documentation is essential to ascertain and conserve architectural heritage. For the first time, accurate digital images are provided of a 16th-century wooden ceiling, composed of geometric interlacing patterns, in the Pinelo Palace...

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ISPRS Int. J. Geo-Inf. - ISSN 2220-9964