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Isostatic anomaly characteristics and tectonism of the new Britain Trench and neighboring papua new guinea

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Geodesy and Geodynamics 2018年第5期9卷 404-410页

作者： Guangliang Yang Chongyang Shen Jiapei Wang Songbai Xuan Guiju Wu Hongbo Tan Key Laboratory of Earthquake Geodesy Institute of Seismology China Earthquake Administration Wuhan Base of Institute of Geodynamics China Earthquake Administration

In this paper, we calculated Bouguer gravity anomalies and Airy-Heiskanen isostatic anomalies in the new Britain Trench and surrounding areas of papua new guinea. The calculations are based on a topographic model and a gravity anomaly model from the Scripps Institute of Oceanography. Characteristics of the isostatic anomaly and the earthquake dynamic environment of this region are analyzed,and the results show that there are obvious differences in the isostatic state between each block in the region. Tectonic movements are very intense in regions with high positive or negative isostatic gravity anomalies, and a number of sub-plates in this area are driven by external tectonic action, such as plate subduction and thrusting, of the Pacific, Indo-Australian and Eurasian plates. From the distribution of the isostatic gravity anomaly, the tectonic action of anti-isostatic movement obviously is the main source of power. Based on isostatic gravity and spatial distribution of earthquakes in the region, it is obvious that further contraction of the Indo-Australian Plate will result in the southwestern part of the Solomon Plate becoming part of the Owen Stanley thrust belt, and the northern part will enter the lower part of the Bismarck Plate. The eastern part of the Solomon Plate will enter the front of the Pacific Plate, resulting in northward and eastward migration of significant earthquakes along the Solomon Plate.

关键词： papua new guinea new Britain Trench Earthquake Bouguer gravity anomaly Isostatic gravity anomaly

Analysis of Rainfall and Temperature Variations between 1956 and 2016 for papua new guinea

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Journal of Geoscience and Environment Protection 2021年第6期9卷 66-85页

作者： Nathan Sapala Yuanyuan Cheng Dapeng Li School of Environmental Science and Engineering Suzhou University of Science and Technology Suzhou China

The aim of the research was to assess the trend and variations in rainfall and temperature in papua new guinea between 1956 and 2016 (60 years) and project the trends from 2017 to 2047 (30 years). Meteorological data obtained from the World Bank Climate Database Headquarters in Washington, United States, from 1956 to 2016 were used in the models. The general linear model analysis was used to investigate the trend in both rainfall and temperature and to predict the future trends. Over the period of study period, 1956 to 2016, the study found that the climatic factors, rainfall and temperature pattern in papua new guinea have been changing. It was found that there is an increasing trend in rainfall and temperature. Projections revealed a further increase in rainfall and temperature into the future. Rainfall in papua new guinea has been increasing. The projection revealed that rainfall was trending upward with a linear model equation: Rainfall = 0.0093x + 252.38. The increased trend in rainfall suggests that there is an increased trend in evaporation and transpiration. For temperature, although it does not come down to zero and to negative at nights or go up to 40°C or 50°C during the day time as in other countries, the change is clear in the analysis made in the study that there is an increasing trend. If nothing is done to combat the current rate of climate change in the country, the increasing trend in rainfall and temperature would continue. This calls for immediate actions as the issue needs to be addressed in time. Therefore, it is recommended that the government of papua new guinea consider incorporating climate change policies

关键词： Rainfall Temperature Climate Change papua new guinea

Identifying Factors of Obesity in papua new guinea: A Descriptive Study

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Health 2016年第14期8卷 1616-1629页

作者： Andrew Pus Michiko Moriyama Mariko Uno Md Moshiur Rahman Division of Nursing Institute of Biomedical & Health Sciences Hiroshima University Hiroshima Japan Institute of Biomedical & Health Sciences Hiroshima University Hiroshima Japan

Obesity and overweight are complex phenomena due to causes and consequences as these are the predisposing factors for developing lifestyle-related diseases. In the recent times, obesity and chronic diseases are being taken very seriously than ever before. Once upon a time, obesity was considered as a problem only in developed countries, now it is of a serious concern in low- and middle-income countries. In papua new guinea (PNG), a few studies have been conducted on obesity-related issues. However, there is not enough data on obesity to clearly understand about the leading contributing factors. Our research group designed this study to assess the influencing factors of obesity and as well as to identify the principal cause. It is a descriptive study, used structured and semi-structured interview and survey questionnaire. This study was conducted in the capital city of PNG, Port Moresby, and recruited 87 adults aged 30 - 50 years. According to interview and analysis findings, the contributing factors of obesity are less physical movement, unhealthy diet, lifestyle, cultural value system, low education and social system. Government strategies and initiatives are not strong enough to educate and motivate the community people. This study suggests developing an effective coordination among all stakeholders to ensure quality education and increase awareness to prevent obesity and its complications. The standard health policies and strategies are also recommended at the local, national and international level with strong commitment.

关键词： Obesity papua new guinea Factors Cultural Value Life Style

Physico-chemical analysis of traditional vegetal salts obtained from three provinces of papua new guinea

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Journal of Coastal Life Medicine 2015年第6期 476-485页

作者： Janarthanan Gopalakrishnan Department of Applied Sciences PNG University of TechnologyPrivate Mail Bag Lae 411Morobe ProvincePapua New Guinea

Objective:To determine the chemical constituents of the traditional vegetal salts and find out if they are safe to ***:Seven different salts have been obtained from three provinces,of which five belong to Morobe *** cations were determined using inductively coupled plasma atomic emission spectroscopy and anions using titrimetry,gravimetry and *** like solubility,electrical conductivity,pH,antimicrobial,Fourier transform infrared spectral and volatility studies have been carried out for these ***:While few salts were found to be stable,others were deliquescent;and the colour varies from white to black through yellow and *** was found that the potassium ion was dominant while others including sodium and calcium were found in lower *** the first time,certain d-block metal concentrations were measured though most of them were found to be present at very low *** parameters like volatility,solubility,electrical conductivity,antimicrobial and Fourier transform infrared spectral studies were carried out for the first time for these vegetal salts in papua new ***:The salt’s deliquescence could be correlated to the presence of anions like carbonate,bicarbonate and hydroxide which strongly contribute towards ***,solubility and conductivity of the salts could be correlated *** salts were found to be harmless for consumption,but for the high potassium content.

关键词： Traditional salt Vegetal salt Plant ash Nutrients Salt trade Traditional knowledge papua new guinea

Warm pool hydrological and terrestrial variability near southern papua new guinea over the last 50 ka

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地球环境学报 2011年第1期 324-324页

作者： SHIAU Liang-Jian Institute of Applied Geosciences National Taiwan Ocean University

Abrupt climate changes such as Dansgaard-Oeschger（D-O） cycles and Heinrich events（HEs） are prevalent during the last glacial cycle and widely documented in Northern Hemisphere（NH） high ***,in tropical regions and the Southern Hemisphere（SH） far fewer records exist,especially in the western Pacific warm pool（WPWP） ***,we present a 50 ka archive of Uk sea surface temperature（SST）,planktonic foraminifera oxygen isotopes,and terrestrial input indicators including branched isoprenoid tetraether（BIT） biomarkers,;Th activity,and non-biogenic sediment components recorded in core MD052928 from the WPWP（near southern papua new guinea,PNG）.The planktonic foraminifer oxygen isotopes in the core show millennial-scale changes indicating fresher seawater during the NH cold periods（*** Events,HEs） and suggesting hydrological changes that are most likely linked to the strength of the boreal winter Asian-Australian monsoon（AAM）.Our observations are corroborated by evidence from the same core that indicates increased terrestrial input caused by higher precipitation on land and more river runoff from southern PNG during the cold *** with other nearby hydrological records from land,our study indicates persistent millennial-scale hydrological changes within the past 50 ka in the western tropical Pacific and Southeast *** timing of the millennial-scale changes appears to have been determined by the latitudinal displacement of the Intertropical Convergence Zone（ITCZ） that reflects a history of heat transport from the tropics and WPWP.

关键词： sea surface temperature terrestrial input papua new guinea Intertropical Convergence Zone