Article
Environmental Sciences
Sheila Cardoso-Silva, Juliana Oliveira Soares Silva Mizael, Daniele Frascareli, Rubens Cesar Lopes Figueira, Marcelo Pompeo, Eduardo Vicente, Viviane Moschini-Carlos
Summary: Using sediment cores, past environmental impacts related to eutrophication, erosion, and metal contamination in a subtropical reservoir were studied. Nutrient levels, sedimentation rates, and metal flows were found to be associated with anthropic activities, leading to changes in phytoplankton community composition and organic matter levels. Despite increased eutrophication and erosion from human activities, no signs of metal contamination were observed in the reservoir.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geochemistry & Geophysics
Ali Ozkan, Hasan Hakan Yavasoglu, Frederic Masson
Summary: This study precisely investigates the strain accumulations and kinematics of the Hatay Triple Junction using a dense GPS network and improved block modeling. The results show that the East Anatolian Fault and Karatas-Osmaniye Fault are fully locked at depths of 15 km and 7 km respectively. The Karasu Fault also has a fully locked seismogenic zone to 7 km depth. These new constraints on fault slip rates suggest a probable large earthquake with magnitudes ranging from 7.2 to 7.6 for the East Anatolian Fault segment.
Article
Environmental Sciences
Marc C. Naeije, Wim J. F. Simons, Siriporn Pradit, Sommart Niemnil, Nalinee Thongtham, Mohamad A. Mustafar, Prakrit Noppradit
Summary: The study found that the vertical land motion caused by earthquakes has impacted the estimates of sea-level changes in Phuket Island and its surrounding areas. By combining data from global navigation satellite systems and satellite altimetry, researchers successfully validated their independent results. The sea level in Phuket Island has risen by 16 cm in the past 17 years due to post-seismic subsidence. Additionally, the uplift in the coastal region of Ranong has caused a relative sea-level fall, while post-seismic-induced negative vertical land motion may have significantly increased coastal erosion along the entire Andaman Sea coastline.
Review
Astronomy & Astrophysics
Takeshi Sagiya, Angela Meneses-Gutierrez
Summary: The 2011 Tohoku-oki earthquake provided valuable data for studying crustal deformation in Northeast Japan. Through various observations and data analyses, researchers were able to analyze different timescales of deformation and gain insights into plate interactions and the tectonic evolution of the island arc. The earthquake also helped resolve discrepancies between geologic and geodetic deformation rates and identified the significant contribution of inelastic deformation in the island arc crust.
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES
(2022)
Article
Geochemistry & Geophysics
Qi Li, Yongge Wan, Chengtao Li, He Tang, Kai Tan, Dongzhen Wang
Summary: This study investigates the rupture kinematics of an earthquake that occurred in the Bayan Har block in the Tibetan plateau. The results reveal that the earthquake was a bilateral rupture event with asymmetric rupture velocities. The slip distribution analysis using radar and GPS data verifies the asymmetric rupture velocities, and the moment tensor calculations align with the fault geometries and released energy distribution.
SEISMOLOGICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Gene Bailey, Yingkui Li, Nathan McKinney, Daniel Yoder, Wesley Wright, Robert Washington-Allen
Summary: This study presents a straightforward method, Las2DoD, to quantify surface change directly from point clouds. The method was applied to two case studies of erosion and showed higher accuracy in measuring sediment compared to other commonly used methods. Las2DoD is able to capture more low-magnitude changes and is particularly useful in cases where surface changes are small but contribute significantly to the total surface change.
Article
Environmental Studies
Maria Michalopoulou, Nikolaos Depountis, Konstantinos Nikolakopoulos, Vasileios Boumpoulis
Summary: This study examines the impact of topographic data from various sources on soil erosion modelling, finding that 5m resolution DEM has the best vertical accuracy for such modeling. It is crucial to use an LS equation with thresholds to avoid overestimation in soil loss calculations.
Article
Geosciences, Multidisciplinary
Dilbarkhon Fazilova, Obidjon Arabov
Summary: The study assessed the vertical accuracy of SRTM30, ASTER GDEM2, and ALOS AW3D30 using GPS data. The Fergana Valley area, known for its tectonic processes, was chosen as the study region. It was found that all global DEMs generally overestimated elevation in mountainous areas, and the vertical accuracy of the DEMs exceeded the declared values by distributors. However, ALOS AW3D30 was proven to be the most accurate DEM that represents the topography of the earth's surface and can be used for engineering applications in Fergana Valley.
EARTH SCIENCES RESEARCH JOURNAL
(2023)
Article
Medicine, General & Internal
Sheng-Lan Pu, Xiang-Yan Zhang, Dai-Shun Liu, Ba-Ning Ye, Jian-Quan Li
Summary: The COVID-19 disease has spread globally, with some patients showing elevated erythrocyte sedimentation rate (ESR) even after recovery, which cannot be explained by other test results. This abnormality may be linked to negative prognosis and could provide clues for understanding the disease progression and prognosis of COVID-19.
WORLD JOURNAL OF CLINICAL CASES
(2021)
Article
Geology
Saroj K. Mondal, Rajeev K. Yadav, Amit K. Bansal, Joshi K. Catherine, Vineet K. Gahalaut
Summary: Geodetic strain rate measurements and crustal stress analysis are crucial for seismic hazard assessment in the Central seismic gap of Himalaya and its adjoining regions. These measurements provide insights into crustal behavior and potential seismic hazard areas.
Article
Environmental Sciences
S. Chrisben Sam, B. Gurugnanam
Summary: This study used remote sensing techniques to investigate shoreline changes in the Kanyakumari district of Tamil Nadu, India. The research found that landward shoreline shift was higher than seaward shoreline shift during the past decade. Additionally, high erosion and high accretion were observed in specific villages. This study has significant implications for coastal management and the protection of coastal environments.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Dong Zhang, Huiming Zhang, Yong Zhou, Mark E. J. Cutler, Dandan Cui
Summary: With the rapid development of wind power generation, this study assesses the stability of offshore wind turbines and their induced topographic changes on the offshore intertidal sandbank (OIS) through a digital elevation model (DEM)-based analysis supported by satellite remote sensing. The study focuses on the Liangsha OIS in Jiangsu Province, China. The results show that a majority of the wind turbines have a balanced influence on the intertidal sand body, while a smaller percentage leads to weak deposition or erosion. The study also calculates the average contribution rate of wind turbines to the terrain changes, demonstrating their significance in the OIS.
Article
Geosciences, Multidisciplinary
Shakil Ahmad Romshoo, Aazim Yousuf, Sadaff Altaf, Muzamil Amin
Summary: Soil erosion is a serious environmental threat in the Himalayas, primarily influenced by steep slopes, active tectonics, deforestation, and land system changes. The study highlights the importance of topography and land use in driving soil erosion, and emphasizes the significance of accurate DEM data selection for erosion modeling.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Cardiac & Cardiovascular Systems
Xiuying Tang, Runjun Li, Ting Zhang
Summary: This study found that intracoronary administration of tirofiban improved blood flow grading, TMP flow, and cardiac function in STEMI patients, compared to intravenous administration. It also reduced inflammatory markers. However, the incidence of bleeding was comparable between the two groups.
CORONARY ARTERY DISEASE
(2022)
Article
Ecology
Esraa A. El-Masry, Asmaa Magdy, Baher Mahmoud, Ayman El-Gamal, Mahmoud Kh. El-Sayed
Summary: The study focuses on shoreline erosion, accretion, and instability along the northwestern Mediterranean coast of Egypt. The results show that shoreline erosion is dominant, influenced by unplanned coastal development activities.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Geochemistry & Geophysics
Ignacio Barbero, Cristina Torrecillas, Raul Paez, Goncalo Prates, Manuel Berrocoso
Summary: Macaronesia is a complex oceanic region spanning three tectonic plates, with different residual velocities found at continental and oceanic stations, a possible shear zone connecting two fault systems, and specific cluster groups identified in terms of tectonic boundaries and residual velocities.
STUDIA GEOPHYSICA ET GEODAETICA
(2021)
Article
Engineering, Marine
Francisco Contreras-de-Villar, Francisco J. Garcia, Juan J. Munoz-Perez, Antonio Contreras-de-Villar, Veronica Ruiz-Ortiz, Patricia Lopez, Santiago Garcia-Lopez, Bismarck Jigena
Summary: Research has shown that various factors such as flight time, frame overlap, and the number of GCPs can significantly impact the accuracy of beach area mapping with RPAS. In general, conducting flights in the early morning can help reduce errors and improve accuracy in surveys.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Marine
Karem Oviedo Prada, Bismarck Jigena Antelo, Nathalia Otalora Murillo, Jeanette Romero Cozar, Francisco Contreras-de-Villar, Juan Jose Munoz-Perez
Summary: The Oceanographic and Hydrographic Research Center in Colombia has made significant progress in marine geophysics, focusing on geomagnetism, sub-bottom profiling, and side-scan sonar techniques. The development of geomagnetic methods is not only important for advancing scientific knowledge, but also for supporting issues of national sovereignty.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Patricia Lopez-Garcia, Juan J. Munoz-Perez, Antonio Contreras, Juan Vidal, Bismarck Jigena, Juan J. Santos, Jeanette Romero, Francisco Contreras
Summary: Analyses were conducted to determine main sand size parameters for beach nourishment using the sieving method aboard a dredger. It was found that manual sieving yielded higher D-50 values than mechanical sieving, with an average error of 14% and a maximum of 36.5%. An error of less than 5% was achieved with at least 20 minutes of shaking during granulometric analysis.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Ana Maria Osorio-Granada, Bismarck Jigena-Antelo, Juan Manuel Vidal Perez, Orlando Hernandez-Pardo, Hermann Leon-Rincon, Juan J. Munoz-Perez
Summary: The Cayos Basin in the Colombian Caribbean Sea has been the subject of debate regarding its origin. This study suggests a volcanic origin for the basin, with a close relationship to the formation of the Caribbean Large Igneous Province. Other studies propose a continental origin. The study characterizes the basin using magnetic and gravity anomaly grids and forward modeling, indicating that the basin is underlain by geological bodies with high density and magnetization.
Article
Environmental Sciences
Bismarck Jigena-Antelo, Carol Estrada-Ludena, Stephan Howden, Wilmer Rey, Jorge Paz-Acosta, Patricia Lopez-Garcia, Eric Salazar-Rodriguez, Nieves Endrina, Juan J. Munoz-Perez
Summary: The present study analyzed the variability of sea level along the Peruvian coast using a long time series data from 1942 to 2019. The study found that the sea level rise rates varied depending on the time interval chosen, with higher rates during the 1979-1997 nodal cycle and lower rates during the 1998-2016 cycle. Large interannual changes of up to 200 mm/year were observed, mainly due to recurring phenomena like El Nino. The study highlights the importance of local studies on sea level variability in coastal areas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
Javier Ramirez-Zelaya, Luis Miguel Peci, Alberto Fernandez-Ros, Belen Rosado, Alejandro Perez-Pena, Jorge Garate, Manuel Berrocoso
Summary: Q-Str2-Models is an opensource application developed in Python (PyQGIS) and integrated into QGIS that provides several tools for creating Stress-Strain models in geodynamically active areas, from the calculation of horizontal velocities of points from a GNSS network. This software generates results of geodetic deformation, shear deformation, rotation, and dilatation of points, which are later translated into graphical products like heatmaps, displacement vectors, and Stress-Strain tensors. This article presents the results of applying Q-Str2-Models to analyze 65 GNSS stations of the SPINA network, aiming to understand the geodynamic behavior of the Andalusian region and its surroundings.
COMPUTERS & GEOSCIENCES
(2023)
Article
Environmental Sciences
Goncalo Prates, Cristina Torrecillas, Manuel Berrocoso, Gabriel Goyanes, Goncalo Vieira
Summary: Aerial frames and satellite imagery are used to produce maps for analyzing volcanic eruptions. By applying structure from motion photogrammetry to historical aerial frames of Deception Island, orthographic mosaics and digital elevation models were produced with minimal human intervention. These new digital cartographic products helped identify erupted ashfall and associated destruction, and assessed the volume of erupted ash to be over 0.16 km(3).
Article
Engineering, Marine
Felix P. Martinez-Garcia, Juan J. Munoz-Perez, Antonio Contreras-de-Villar, Francisco Contreras, Bismarck Jigena-Antelo
Summary: This study proposes a method for spatial wind propagation based on local data, using regression methods and wind profile theory to accurately calculate wind transfer for scales under 10 km. The aim of this article is to establish a methodology for achieving a wind transfer function for local applications, by analyzing and comparing data from a field experiment and a nearby weather station. The methodology combines wind profile and statistical downscaling techniques to develop transfer equations for wind speeds and directions.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Marine
Diana Maria Quintana-Saavedra, Rafael Ricardo Torres-Parra, Richard Guzman-Martinez, Giorgio Anfuso, Juan Jose Munoz-Perez, Saul Vallejo, Bismarck Jigena-Antelo
Summary: This paper presents a comprehensive methodology for managing submerged cultural heritage sites worldwide. The methodology is applied to four colonial shipwrecks in Cartagena de Indias Bay, Colombia. Five criteria are used to assess the risk level of each wreck, including historical significance, geographical accessibility, shipwreck condition, oceanographic conditions, and socioeconomic impacts. Based on the scores obtained, guidelines for shipwreck conservation in Cartagena Bay are proposed.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Analytical
Javier Ramirez-Zelaya, Belen Rosado, Vanessa Jimenez, Jorge Garate, Luis Miguel Peci, Amos de Gil, Alejandro Perez-Pena, Manuel Berrocoso
Summary: This manuscript describes the design, development, and implementation of a prototype system based on seismogeodetic techniques, which aims to know, detect, and monitor tectonic activity and integrate into an early warning system to minimize the consequences of geological phenomena.
Article
Environmental Studies
Francisco Contreras-de-Villar, Francisco J. Garcia, Juan J. Munoz-Perez, Antonio Contreras-de-Villar, Veronica Ruiz-Ortiz, Patricia Lopez-Garcia, Bismark Jigena-Antelo
Summary: This study examines the accuracy of using RPAS to acquire topographic data in dune areas. The results show that increasing camera inclination decreases accuracy, while flight inclination does not significantly affect the error.
Article
Engineering, Multidisciplinary
Maria Del-Mar Pino-Caceres, Cristina Torrecillas-Lozano, Noelia Caceres-Sanchez, Jose-Luis Pino-Mejias
Summary: In recent years, policy makers have increasingly focused on cycling as a sustainable mode of transportation. This study analyzed the geographical effects of winter season on cycling mobility in Valencia, Spain, using the Getis-ord Gi* statistic. The findings suggest persistent and intensifying cold spots in the surrounding areas during winter.
Article
Environmental Studies
Juan J. Santos-Vendoiro, Juan J. Munoz-Perez, Patricia Lopez-Garcia, Jose Manuel Jodar, Javier Mera, Antonio Contreras, Francisco Contreras, Bismarck Jigena
Summary: A methodology for monitoring sand behaviour and size after beach nourishment process was presented. Four sampling campaigns were conducted on four beaches in the Gulf of Cadiz, with results showing differences between native and nourished sand values disappearing one year after nourishment.