Volume 2, 2019
Difference & Differential Equations and Applications
|Number of page(s)||18|
|Section||Mathematics - Applied Mathematics|
|Published online||18 July 2019|
Map production and data analysis with local parameters
The case study of the Algarve region
FCT – Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
2 ISE – Universidade do Algarve, Campus da Penha, 8005-139 Faro, Portugal
* Corresponding author: email@example.com
Accepted: 14 June 2019
In this work we perform a geographical analysis of the Algarve region by using local parameters in the three map projections we consider: Transverse Mercator (TMzn), Lambert Azimuthal Equal-Area (LAEA) and Lambert Conformal Conic (LCC). We compare the Algarve maps resulting by each one of these representations when the origin of coordinates is moved from the center of mainland Portugal (that is in force) to the center of the Algarve. For the LCC map projection, the analysis takes also into account the change of the upper parallel from the North of Portugal to a latitude inside the Algarve border. The area and perimeter of the Algarve is computed and the location of its geographic center is determined in every map representation. Borders lengths that separates the Algarve from Alentejo and from Spain, and the extents of its South and West coasts, are also computed. We conclude by presenting the map, the values of area and perimeter and the location of the geographic center that should be considered for the Algarve, at different scales and for the available data.
Mathematics Subject Classification: 91D20 / 97I20 / 97R50 / 62H11
Key words: Algarve / TMzn, LAEA and LCC map projections / Geographic center / Area / Perimeter
© H.B. de Oliveira et al., Published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.