Assessment of the impact of intelligent DSM methods in the Galapagos Islands toward a Smart Grid

2017 ◽  
Vol 146 ◽  
pp. 308-320 ◽  
Author(s):  
D.X. Morales ◽  
Y. Besanger ◽  
S. Sami ◽  
C. Alvarez Bel
Author(s):  
María Belén Arteaga-Custode ◽  
Claudia Fernanda Betancourt-Ruiz ◽  
María Serena López-Donoso ◽  
Sophia Veronique Nieto-Vasco ◽  
Carolina Stefanía Pantoja-Cabrera ◽  
...  

The Galápagos Islands are one of the biggest marine reserves in the world, home to a complex dynamic between its inhabitants, tourists, and biodiversity. Therefore, control over the logistics surrounding the resulting human mobilization process is fundamental to minimize the impact on the Islands' natural resources. This research gathers relevant information regarding the operation of the maritime transportation system of the islands and the waste management of its floating population based on official sources as well as in-situ observation. This chapter includes three sections with the purpose of maximizing the range of information analyzed. The first section covers the maritime cargo transportation from the continent to the islands. The second one covers the transportation of people between the islands, and the third covers the transportation and management of waste produced by each island. The information covers the institutions and policies that govern each of the systems considered and can serve to optimize the transportation logistics of the Galápagos Islands.


2021 ◽  
Author(s):  
Stefanie Ypma ◽  
Mikael Kaandorp ◽  
Jen Jones ◽  
Andy Donnelly ◽  
Erik van Sebille

<p>The Galapagos Archipelago and the Galapagos Marine Reserve host one of the world’s most unique ecosystems. Although being a UNESCO world heritage site and being isolated from any dense population, over 8 tonnes of plastic are collected on the islands each year. To decrease the impact of plastic waste in the region, scientific evidence is needed on the sources and fate of the marine debris. Here, we will assess the skill of machine learning techniques to predict beaching events on these islands. In order to do so, we combine various hydrodynamic fields from ocean-, wave-, wind- and tide-models using the OceanParcels particle tracking framework to track virtual particles through the marine reserve. In addition, a beaching parameterization has been developed and implemented to quantify where and when virtual particles wash ashore. The results show that the particle pathways and beaching probabilities strongly depend on the dry and wet seasons characteristic for the Galapagos Islands. </p><p>Therefore, it is expected that the beaching events can to some extent be predicted from the forecasts of currents, tides and waves - without performing a Lagrangian simulation. To test this hypothesis, PCA analysis and random forests are applied to a set of over 100 variables and their skill to explain the beaching variability given by the particle model is determined. In addition, the results are compared to a timeseries of observed beached litter on one of the Island of San Cristobal to apply the models in a realistic case study. This work, in combination with a growing observational data set, will form the basis of a predictive model that will support the Galapagos National Park in their efforts to free the Galapagos Archipelago from marine debris.</p>


Marine plankton flagellates attributable to Michaelsarsia elegans Gran (type species of its genus) and Halopappus adriaticus Schiller (sensu Gaarder) have been investigated by means of scanning and transmission electron microscopy supplementing light microscopy of dry whole mounts prepared in situ in the Galapagos Islands. Some external features, notably coccolith arrangement, have been re-interpreted, and information on others added or amplified. Some of the new details include the body coccoliths, which have been shown to be more complex than previously supposed, the bar-crystallites in particular being compound in both taxa. In addition, unmineralized components are shown to be present in all types of coccolith. They include patternless membranes spread across the proximal faces of body coccoliths and occupying the apparently vacant centres of ring-shaped coccoliths, while a highly characteristic, fragile, reticulum is limited to the central areas of the elongated appendage links in both taxa. The impact of these findings on general biological concepts is discussed in a preliminary way, drawing on cognate data previously published for Ophiaster and Calciopappus . It is concluded that the presence of apical appendages (anterior or posterior) in each of these genera is an independently acquired adaptation to some as yet unknown environmental factor or factors, whereas coccolith substructure is phyletically more meaningful. This indicates that Michael-sarsia , to which H. adriaticus should be transferred, is more remote from the other two genera than has hitherto been supposed. Finally an attempt has been made, in the light of aff the evidence, to assess for the first time the possible functional significance of the unmineralized coccolith components and some constructive suggestions have been tentatively formulated. The paper ends with a factual summary in the form of revised taxonomic diagnoses for M. elegans , M. adriaticus and the genus Michaelsarsia .


2021 ◽  
Vol 21 (2) ◽  
Author(s):  
Daniel Escobar-Camacho ◽  
Paulina Rosero ◽  
Mauricio Castrejón ◽  
Carlos F. Mena ◽  
Francisco Cuesta

AbstractThe unique marine and terrestrial ecosystems of the Galapagos Islands are highly vulnerable to human-based drivers of change, including the introduction of invasive species, unsustainable tourism, illegal fishing, overexploitation of ecosystem services, and climate change. These drivers can interact with climate-based drivers such as El Niño-Southern Oscillation (ENSO) at multiple temporal and spatial scales, exacerbating their negative impacts on already fragile ecosystems and the socioeconomic system of the Archipelago. In this review, we performed a literature review based on published literature from 1945 to 2020 and local and global climate databases to analyze drivers of change in the Galapagos. We developed and applied a spatial impact assessment model to identify high-ecological value areas with high sensitivity and exposure scores to environmental change drivers. We identified 13 priority HEVA that encompass ca. 23% (14,715 km2) of the Galapagos Archipelago, distributed in nearly 3% of the Galapagos Marine Reserve and 20% Galapagos National Park. Current and future impacts are likely to concentrate on the inhabited islands’ highlands, whereas marine impacts concentrate along most of the Galapagos Islands’ shorelines. These results are important for guiding the design and implementation of adaptation measures aimed at increasing ecosystem resilience and human adaptive capacity in the face of global environmental change. Overall, these results will be valuable in their application for preserving Galapagos biota, securing the provision of vital ecosystem services for resident human populations, and sustaining the nature-based tourism industry.


2021 ◽  
pp. 100180
Author(s):  
William F. Vásquez ◽  
Nejem Raheem ◽  
Diego Quiroga ◽  
Valeria Ochoa-Herrera

2011 ◽  
Vol 65 (4) ◽  
pp. 507-513 ◽  
Author(s):  
Mark S. Hoddle ◽  
Laurence A. Mound

Author(s):  
Polpass Arul Jose ◽  
Michael Ben‐Yosef ◽  
Paola Lahuatte ◽  
Charlotte E. Causton ◽  
George E. Heimpel ◽  
...  

Author(s):  
A. Cano ◽  
Paul Arévalo ◽  
F. Jurado

This research compared different sizing methods to improve the current autonomous hybrid system in the Galapagos Islands in 2031, analyzing the loss of power supply probability (LPSP).


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