You are currently viewing a new version of our website. To view the old version click .

ISPRS International Journal of Geo-Information, Volume 13, Issue 11

November 2024 - 46 articles

Cover Story: Discrete Global Grid Systems (DGGSs) have emerged as a promising approach to enhance modern GIS capabilities. Current DGGSs use low-res simple spherical meshes for efficient operations but require projection between the Earth’s surface and mesh faces, causing unavoidable distortion. High-res spherical meshes offer an opportunity to reduce distortion, albeit with more expensive operations. This paper introduces a novel mesh-based DGGS (MBD) that generalizes efficient operations over spherical meshes. MBD allows high-res meshes to be used as the base polyhedron of a DGGS, notably reducing distortion. To address operational efficiency, this paper introduces novel methods for efficient spatial and hierarchical traversal. Several new base meshes with lower distortion are presented, achieving constant-time operations for high-res mesh-based DGGSs. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (46)

  • Article
  • Open Access
2 Citations
1,498 Views
23 Pages

Recently, urban spatial equity has become a research hotspot, but research focuses on the equity of work commuting from different dimensions. This paper aims to determine the fairness difference of work commuting in Chengdu from three different dimen...

  • Article
  • Open Access
3 Citations
3,003 Views
24 Pages

The wind is one of the most important sources of renewable energy. However, it is associated with many challenges, with one of the most notable being determining suitable locations for wind power farms based on different evaluation criteria. In this...

  • Article
  • Open Access
1 Citations
1,917 Views
22 Pages

Integrated Assessment of Security Risk Considering Police Resources

  • Jieying Chen,
  • Weihong Li,
  • Yaxing Li and
  • Yebin Chen

The existing research on security risk often focuses on specific types of crime, overlooking an integrated assessment of security risk by leveraging existing police resources. Thus, we draw on crime geography theories, integrating public security bus...

  • Article
  • Open Access
7 Citations
5,209 Views
23 Pages

TravelRAG: A Tourist Attraction Retrieval Framework Based on Multi-Layer Knowledge Graph

  • Sihan Song,
  • Chuncheng Yang,
  • Li Xu,
  • Haibin Shang,
  • Zhuo Li and
  • Yinghui Chang

A novel framework called TravelRAG is introduced in this paper, which is built upon a large language model (LLM) and integrates Retrieval-Augmented Generation (RAG) with knowledge graphs to create a retrieval system framework designed for the tourism...

  • Article
  • Open Access
1 Citations
1,265 Views
17 Pages

The GF-7 satellite, China’s inaugural sub-meter-level stereoscopic mapping satellite, has been deployed for a wide range of applications, including natural resource investigation, environmental monitoring, fundamental surveying, and the develop...

  • Article
  • Open Access
3 Citations
1,468 Views
23 Pages

Understanding the ecosystem services and their interaction with coal resource development is crucial for formulating sustainable development policies. In this study, we focused on the Yellow River Basin, characterized by both rich coal resources and...

  • Article
  • Open Access
1 Citations
1,559 Views
17 Pages

The shape classification of building objects is crucial in fields such as map generalization and spatial queries. Recently, convolutional neural networks (CNNs) have been used to capture high-level features and classify building shape patterns based...

  • Article
  • Open Access
1 Citations
2,017 Views
20 Pages

Police patrolling intends to enhance traffic safety by mitigating the risks associated with vehicle crashes and accidents. From a view of operations, patrolling requires an effective distribution of resources and often involves area delineations for...

  • Article
  • Open Access
1 Citations
1,770 Views
26 Pages

A Raster-Based Multi-Objective Spatial Optimization Framework for Offshore Wind Farm Site-Prospecting

  • Loukas Katikas,
  • Themistoklis Kontos,
  • Panayiotis Dimitriadis and
  • Marinos Kavouras

Siting an offshore wind project is considered a complex planning problem with multiple interrelated objectives and constraints. Hence, compactness and contiguity are indispensable properties in spatial modeling for Renewable Energy Sources (RES) plan...

  • Article
  • Open Access
3 Citations
2,057 Views
18 Pages

The severe contamination of groundwater supplies in rural areas is a global problem that requires strict environmental measures. Related to this, one of the most important challenges at present is the elimination of local sources of pollution. Theref...

of 5

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
ISPRS Int. J. Geo-Inf. - ISSN 2220-9964Creative Common CC BY license