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55,047 Results Found

  • Article
  • Open Access
9 Citations
10,002 Views
12 Pages

Map Projections Classification

  • Miljenko Lapaine and
  • Nedjeljko Frančula

Many books, textbooks and papers have been published in which the classification of map projections is based on auxiliary (developable) surfaces and projections are divided into conic, cylindrical and azimuthal projections. We argue that such a class...

  • Article
  • Open Access
1 Citations
2,963 Views
11 Pages

In previous papers that have dealt with cylindrical map projections as limiting cases of conical projections, standard or equidistant parallels were used in the derivations. This paper shows that this is not necessary and that it is sufficient to use...

  • Article
  • Open Access
1 Citations
2,814 Views
14 Pages

Resolution Aspects for Near-Field Projections

  • Alexander Stuckert and
  • Tran Quoc Khanh

12 January 2023

This work intends to define the resolution requirements for near-field projections in a psycho-physical study design to evaluate the participants’ perception under the influence of different ambient lighting levels and various viewing distances...

  • Article
  • Open Access
2 Citations
2,630 Views
6 Pages

Map projections are usually interpreted by mapping a sphere onto an auxiliary surface, and then the surface is developed into a plane. It is taken as a fact without proof that the parallels in which the auxiliary surface intersects the sphere are map...

  • Review
  • Open Access
2,741 Views
37 Pages

Hexahedral Projections: A Comprehensive Review and Ranking

  • Aleksandar Dimitrijević and
  • Peter Strobl

Hexahedral projections—mapping the Earth’s surface onto the faces of a circumscribed cube—have drawn scientific interest for over half a century. During this time, numerous projections with diverse characteristics have been develope...

  • Article
  • Open Access
367 Views
24 Pages

On the Minimality of Projections in Expanded Matrix Spaces

  • Agnieszka Kozdęba and
  • Michał Kozdęba

2 November 2025

Let S be a space of all functions from X×Y×Z into R or C, where X,Y,Z are finite sets. It was proved that there is a unique projection from S into its subspace consisting of all sums of functions that depend on one variable. We show here...

  • Article
  • Open Access
4 Citations
3,929 Views
18 Pages

The article belongs to the field of theoretical research on map projections. It is observed that there is no unique and generally accepted definition of standard parallels in the cartographic literature. For some authors, a standard line is a line al...

  • Article
  • Open Access
836 Views
26 Pages

Fractional Gaussian Noise: Projections, Prediction, Norms

  • Iryna Bodnarchuk,
  • Yuliya Mishura and
  • Kostiantyn Ralchenko

We examine the one-sided and two-sided (bilateral) projections of an element of fractional Gaussian noise onto its neighboring elements. We establish several analytical results and conduct a numerical study to analyze the behavior of the coefficients...

  • Feature Paper
  • Article
  • Open Access
19 Citations
7,507 Views
19 Pages

Low-End Probabilistic Sea-Level Projections

  • Gonéri Le Cozannet,
  • Rémi Thiéblemont,
  • Jeremy Rohmer,
  • Déborah Idier,
  • Jean-Charles Manceau and
  • Robin Quique

20 July 2019

In the area of sea-level rise, recent research has focused on assessing either likely or high end future sea levels, but less attention has been given to “low-end” sea-level projections, exploring best-case potential sea-level changes and...

  • Article
  • Open Access
1,716 Views
16 Pages

Maximal Norms of Orthogonal Projections and Closed-Range Operators

  • Salma Aljawi,
  • Cristian Conde,
  • Kais Feki and
  • Shigeru Furuichi

19 July 2025

Using the Dixmier angle between two closed subspaces of a complex Hilbert space H, we establish the necessary and sufficient conditions for the operator norm of the sum of two orthogonal projections, PW1 and PW2, onto closed subspaces W1 and W2, to a...

  • Article
  • Open Access
7 Citations
3,522 Views
19 Pages

Common Issues in Verification of Climate Forecasts and Projections

  • James S. Risbey,
  • Dougal T. Squire,
  • Marina Baldissera Pacchetti,
  • Amanda S. Black,
  • Christopher C. Chapman,
  • Suraje Dessai,
  • Damien B. Irving,
  • Richard J. Matear,
  • Didier P. Monselesan and
  • Carly R. Tozer
  • + 3 authors

15 June 2022

With increased interest in climate forecasts and projections, it is important to understand more about their sources and levels of skill. A starting point here is to describe the nature of the skill associated with forecasts and projections. Climate...

  • Article
  • Open Access
5 Citations
1,802 Views
17 Pages

17 November 2020

Probabilistic sea level projections are frequently used to characterise the uncertainty in future sea level rise. Here, it is investigated how different modelling assumptions and process estimates affect such projections using two process-based model...

  • Feature Paper
  • Review
  • Open Access
15 Citations
7,779 Views
17 Pages

26 December 2020

Cortical development in humans is a long and ongoing process that continuously modifies the neural circuitry into adolescence. This is well represented by the dynamic maturation of the corpus callosum, the largest white matter tract in the brain. Cal...

  • Feature Paper
  • Article
  • Open Access
5 Citations
4,499 Views
20 Pages

10 December 2021

The aim of this study is to investigate whether different Representative Concentration Pathways (RCPs), as they are determined in the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC), lead to different regimes in...

  • Article
  • Open Access
4 Citations
3,088 Views
17 Pages

Optimization of Complex Function Expansions for Gauss-Krüger Projections

  • Xiaoyong Li,
  • Houpu Li,
  • Guohui Liu and
  • Shaofeng Bian

Compared with complex and lengthy Gauss-Krüger projection series expansions and real number expressions, we improve the complex function representation of Gauss-Krüger projections and rewrite them into the “multiple Angle form”,...

  • Article
  • Open Access
20 Citations
13,948 Views
9 Pages

3 December 2008

Varioussoftware for Geographical Information Systems (GISs) have been developed and used in many different engineering projects. In GIS applications, map coverage is important in terms of performing reliable and meaningful queries. Map projections ca...

  • Article
  • Open Access
22 Citations
10,618 Views
19 Pages

Electronic Navigational Charts: International Standards and Map Projections

  • Athanasios Palikaris and
  • Athanasios K. Mavraeidopoulos

Electronic navigational charts (ENCs) are geospatial databases, compiled for the operational use of Electronic Chart Display and Information systems (ECDIS) according to strict technical specifications of the International Hydrographic Organization (...

  • Article
  • Open Access
6 Citations
3,721 Views
16 Pages

Organizational Principles of the Centrifugal Projections to the Olfactory Bulb

  • Li Wang,
  • Xiangning Li,
  • Fengming Chen,
  • Qing Liu and
  • Fuqiang Xu

26 February 2023

Centrifugal projections in the olfactory system are critical to both olfactory processing and behavior. The olfactory bulb (OB), the first relay station in odor processing, receives a substantial number of centrifugal inputs from the central brain re...

  • Article
  • Open Access
1 Citations
2,681 Views
15 Pages

An Analysis of Visibility Requirements and Reaction Times of Near-Field Projections

  • Tabea Schlürscheid,
  • Alexander Stuckert,
  • Anil Erkan and
  • Tran Quoc Khanh

19 January 2024

Successful communication between highly automated vehicles and vulnerable road users will be crucial in the future. In addition to the technical requirements of the communication system, the projected content is also essential to ensure successful co...

  • Article
  • Open Access
8 Citations
7,894 Views
21 Pages

Projections of Future Suitable Bioclimatic Conditions of Parthenogenetic Whiptails

  • Guillermo Alvarez,
  • Eric Ariel L. Salas,
  • Nicole M. Harings and
  • Kenneth G. Boykin

22 April 2017

This paper highlights the results of bioclimatic-envelope modeling of whiptail lizards belonging to the Aspidoscelis tesselata species group and related species. We utilized five species distribution models (SDM) including Generalized Linear Model, R...

  • Article
  • Open Access
2 Citations
2,691 Views
16 Pages

5 December 2022

The method of alternating projections for extracting low-rank signals is considered. The problem of decreasing the computational costs while keeping the estimation accuracy is analyzed. The proposed algorithm consists of alternating projections on th...

  • Article
  • Open Access
1 Citations
2,968 Views
25 Pages

Over the course of seven years during ten events, the author explored real-time interactive audiovisual projections, using ad hoc and portable projections and audio systems. This was done in the specific location of Cockatoo Island in the waters of a...

  • Article
  • Open Access
40 Citations
7,684 Views
17 Pages

Climate Change Projections of Aridity Conditions in the Iberian Peninsula

  • Cristina Andrade,
  • Joana Contente and
  • João Andrade Santos

26 July 2021

The assessment of aridity conditions is a key factor for water management and the implementation of mitigation and adaptation policies in agroforestry systems. Towards this aim, three aridity indices were computed for the Iberian Peninsula (IP): the...

  • Article
  • Open Access
1,581 Views
14 Pages

7 February 2023

A theory of unbounded measures is constructed based on the quantum logics of orthogonal projections. As an analogue of the ring of sets, the projector ideal is proposed. Finite and maximal measures regarding the projector ideals are described. Analog...

  • Article
  • Open Access
2 Citations
1,881 Views
23 Pages

15 March 2024

Global warming may increase potential evapotranspiration (ETp), reducing the water resources in Yangzi River Delta. Therefore, it is important to investigate the trend of ETp there under the background of climate change. To this purpose, the systemat...

  • Article
  • Open Access
7 Citations
4,619 Views
15 Pages

Exploring the Future of Cancer Impact in Alberta: Projections and Trends 2020–2040

  • Darren R. Brenner,
  • Chantelle Carbonell,
  • Dylan E. O’Sullivan,
  • Yibing Ruan,
  • Robert B. Basmadjian,
  • Vickey Bu,
  • Eliya Farah,
  • Shaun K. Loewen,
  • Tara R. Bond and
  • Paula J. Robson
  • + 2 authors

18 November 2023

The impact of cancer in Alberta is expected to grow considerably, largely driven by population growth and aging. The Future of Cancer Impact (FOCI) initiative offers an overview of the present state of cancer care in Alberta and highlights potential...

  • Article
  • Open Access
2 Citations
3,868 Views
11 Pages

The literature usually calls downscaled versions of basic conformal map projections “secant”, referring to conceptual developable map surfaces that intersect the reference frame. However, recent studies pointed out on the examples of vari...

  • Feature Paper
  • Review
  • Open Access
19 Citations
5,726 Views
21 Pages

Historical Trends and Projections of Snow Cover over the High Arctic: A Review

  • Hadi Mohammadzadeh Khani,
  • Christophe Kinnard and
  • Esther Lévesque

15 February 2022

Snow is the dominant form of precipitation and the main cryospheric feature of the High Arctic (HA) covering its land, sea, lake and river ice surfaces for a large part of the year. The snow cover in the HA is involved in climate feedbacks that influ...

  • Article
  • Open Access
2 Citations
4,343 Views
13 Pages

9 November 2021

The main problem in cartography is that it is not possible to map/project/transform a spherical or ellipsoidal surface into a plane without distortions. The distortions of areas, angles, and/or distances are immanent to all maps. It is known that sca...

  • Article
  • Open Access
1 Citations
1,837 Views
16 Pages

Two-Dimensional Exponential Sparse Discriminant Local Preserving Projections

  • Minghua Wan,
  • Yuxi Zhang,
  • Guowei Yang and
  • Hongjian Guo

4 April 2023

The two-dimensional discriminant locally preserved projections (2DDLPP) algorithm adds a between-class weighted matrix and a within-class weighted matrix into the objective function of the two-dimensional locally preserved projections (2DLPP) algorit...

  • Article
  • Open Access
17,051 Views
19 Pages

This study adapts the United Nations’ methodology for national probabilistic population projections to subnational contexts. The Bayesian approach used by the UN addresses data collection complexities effectively. By applying hierarchical model...

  • Article
  • Open Access
33 Citations
9,848 Views
24 Pages

Heating and Cooling Degree-Days Climate Change Projections for Portugal

  • Cristina Andrade,
  • Sandra Mourato and
  • João Ramos

Climate change is expected to influence cooling and heating energy demand of residential buildings and affect overall thermal comfort. Towards this end, the heating (HDD) and cooling (CDD) degree-days along with HDD + CDD were computed from an ensemb...

  • Article
  • Open Access
994 Views
9 Pages

If we take a distance from a map without considering the distortion, we will not get the correct value. We will get the correct value if we take the distortion into account, that is, if we use an expression for distance that does not contain distorti...

  • Article
  • Open Access
69 Citations
8,322 Views
22 Pages

17 May 2016

The nature of drought conditions is estimated using a range of indices describing different aspects of drought events. Three drought indices are evaluated, namely the Standardized Precipitation Index (SPI), Standardized Precipitation Evapotranspirati...

  • Communication
  • Open Access
1 Citations
2,752 Views
10 Pages

Surface Wave Mixing Modifies Projections of 21st Century Ocean Heat Uptake

  • Joshua Kousal,
  • Kevin J. E. Walsh,
  • Zhenya Song,
  • Qingxiang Liu,
  • Fangli Qiao and
  • Alexander V. Babanin

10 March 2023

Climate models do not explicitly account for the smaller scale processes of ocean surface waves. However, many large-scale phenomena are essentially coupled with the waves. In particular, waves enhance mixing in the upper ocean and thereby accelerate...

  • Article
  • Open Access
6 Citations
4,205 Views
21 Pages

25 October 2022

The utilization of Building Information Modeling (BIM) on-site has been limited due to the lack of an appropriate medium for visualizing and accessing models and project data intuitively in the field. AROS, an Augmented Reality-based site management...

  • Article
  • Open Access
1 Citations
1,158 Views
22 Pages

Measuring Semantic Stability: Statistical Estimation of Semantic Projections via Word Embeddings

  • Roger Arnau,
  • Ana Coronado Ferrer,
  • Álvaro González Cortés,
  • Claudia Sánchez Arnau and
  • Enrique A. Sánchez Pérez

21 May 2025

We present a new framework to study the stability of semantic projections based on word embeddings. Roughly speaking, semantic projections are indices taking values in the interval [0,1] that measure how terms share contextual meaning with the words...

  • Article
  • Open Access
10 Citations
7,412 Views
23 Pages

Working with Climate Projections to Estimate Disease Burden: Perspectives from Public Health

  • Kathryn C. Conlon,
  • Kristina W. Kintziger,
  • Meredith Jagger,
  • Lydia Stefanova,
  • Christopher K. Uejio and
  • Charles Konrad

There is interest among agencies and public health practitioners in the United States (USA) to estimate the future burden of climate-related health outcomes. Calculating disease burden projections can be especially daunting, given the complexities of...

  • Article
  • Open Access
12 Citations
6,613 Views
13 Pages

This study compares the performance of five popular equal-area projections supported by Free and Open Source Software for Geo-spatial (FOSS4G)—Sinusoidal, Mollweide, Hammer, Eckert IV and Homolosine. A set of 21,872 discrete distortion vindicat...

  • Article
  • Open Access
12 Citations
5,518 Views
19 Pages

3 February 2019

The study investigates the hierarchical uncertainty of multi-ensemble hydroclimate projections for the Southern Hills-Gulf region, USA, considering emission pathways and a global climate model (GCM) as two main sources of uncertainty. Forty projectio...

  • Article
  • Open Access
42 Citations
5,853 Views
17 Pages

Spatiotemporal Variability in Extreme Precipitation in China from Observations and Projections

  • Yifeng Peng,
  • Xiang Zhao,
  • Donghai Wu,
  • Bijian Tang,
  • Peipei Xu,
  • Xiaozheng Du and
  • Haoyu Wang

16 August 2018

Extreme precipitation events, which have intensified with global warming over the past several decades, will become more intense in the future according to model projections. Although many studies have been performed, the occurrence patterns for extr...

  • Article
  • Open Access
14 Citations
26,667 Views
19 Pages

Map projections are required to represent the globe on a flat surface, which always results in distorted representations of the globe. Accordingly, the world maps we observe in daily life contexts, such as on news sites, in news bulletins, on social...

  • Article
  • Open Access
5 Citations
3,172 Views
30 Pages

Outlook for Offshore Wind Energy Development in Mexico from WRF Simulations and CMIP6 Projections

  • Jaime Meza-Carreto,
  • Rosario Romero-Centeno,
  • Bernardo Figueroa-Espinoza,
  • Efraín Moreles and
  • Carlos López-Villalobos

13 April 2024

This study presents a comprehensive assessment of the offshore wind energy potential in Mexico across 40 years (1979–2018) of numerical simulations using the Weather Research and Forecasting (WRF) model and data from the Coupled Model Intercomp...

  • Article
  • Open Access
14 Citations
5,750 Views
31 Pages

28 December 2021

In this paper we will present a new dynamic point cloud compression based on different projection types and bit depth, combined with the surface reconstruction algorithm and video compression for obtained geometry and texture maps. Texture maps have...

  • Article
  • Open Access
776 Views
41 Pages

The delisting of Binance USD (BUSD) constitutes a major regulatory intervention in the stablecoin market and provides a unique opportunity to examine how targeted regulation affects liquidity allocation, market concentration, and short-run systemic r...

  • Review
  • Open Access
63 Citations
12,259 Views
40 Pages

Review on the Projections of Future Storminess over the North Atlantic European Region

  • Tina Mölter,
  • Dirk Schindler,
  • Axel Tim Albrecht and
  • Ulrich Kohnle

22 April 2016

This is an overview of the results from previously published climate modeling studies reporting on projected aspects of future storminess over the North Atlantic European region (NAER) in the period 2020–2190. Changes in storminess are summarized for...

  • Article
  • Open Access
665 Views
14 Pages

Meteorological Droughts in the Paraopeba River Basin: Current Scenarios and Future Projections

  • Claudiana Mesquita de Alvarenga,
  • Lívia Alves Alvarenga,
  • Pâmela Aparecida Melo,
  • Javier Tomasella,
  • Pâmela Rafanele França Pinto and
  • Carlos Rogério de Mello

21 October 2025

Meteorological droughts have been occurring with greater frequency and intensity, impacting water security in various regions. Between 2013 and 2015, the Paraopeba River Basin in southeast Brazil experienced its most severe drought in the last 70 yea...

  • Article
  • Open Access
2 Citations
1,227 Views
29 Pages

10 October 2025

While weighted multi-model approaches are widely used to improve predictive capability, hydrological models (HMs) and their weighted combinations that perform well under past conditions may not guarantee robustness under future climate scenarios. Fur...

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