Dr.
Brian JOHNSON

Results 1 to 10 of 103 (Sorted by date)
Peer-reviewed Article
In Water
Author:
Mmasabata Dolly
Molekoa
Ram
Avtar
Huynh Vuong Thu
Minh
Netrananda
Sahu
Ram Lal
Verma
Ali P.
Yunus
Considering the well‐documented impacts of land‐use change on water resources and the rapid land‐use conversions occurring throughout Africa, in this study, we conducted a spatiotemporal analysis of surface water quality and its relation with the land use and land cover (LULC) pattern in Mokopane, Limpopo province of South Africa. Various physico...
Peer-reviewed Article
In Remote Sensing
Author:
Dai
Xiaoai
Penglan
Luo
Kai
Yang
Linxin
Dong
Qiang
Wang
Chao
Liu
Naiwen
Li
Heng
Lu
Lei
Ma
Zhengli
Yang
Yuanzhi
Yao
Research on the service values of urban ecosystems is a hot topic of ecological studies in the current era of rapid urbanization. To quantitatively estimate the ecosystem service value in Chengdu, China from the perspectives of natural ecology and social ecology, the technologies of remote sensing (RS) and geographic information system (GIS) are...
Peer-reviewed Article
In Progress in Disaster Science
Author:
Ram
Avtar
Abhijit
Mukherjee
Md. Nasif
Ahsan
Duc
Cong Hiep Nguyen
Hong Quan
Nguyen
Rajib
Shaw
Binaya Kumar
Mishra
Rapid global changes (population growth, urbanization and frequent extreme weather conditions) have cumulatively affected local water bodies and resulted in unfavorable hydrological, ecological, and environmental changes in the major river systems. Particularly, communities in isolated riverine islands are heavily affected due to their poor...
Peer-reviewed Article
In International Journal of Disaster Risk Reduction
The paper narrates a pilot study to understand disaster preparedness among foreign residents living in Japan, using typhoon Hagibis as a reference. We empirically evaluated an individual disaster preparedness framework following the 72-h golden rule of disaster survival. The framework consisted of 14 variables, and responses were collected over a...
Policy Report
Author:
United Nations Environment Programme [UNEP]
[DAISY] GEO for Youth Asia and the Pacific (text only DAISY3, zip file) IGES is proud to provide GEO for Youth Asia and the Pacific in DAISY format. DAISY enables accessibility of information to all, including people with print disabilities. This DAISY file was created by persons with disabilities and the support of the Assistive Technology...
Peer-reviewed Article
In Geomorphology
Author:
Haireti
Alifu
Jean-Francois
Vuillaume
Yukiko
Hirabayashi
Debris cover on glacier surfaces hampers the accurate detection of debris-covered ice using traditional techniques based on image band ratios. Therefore, this study tests a new automatic classification scheme for hierarchical mapping of glacier surfaces based on machine learning classifiers including k-nearest neighbors (KNN), support vector...
Peer-reviewed Article
In Remote Sensing
Author:
Shahab
Jozdani
Land use/land cover (LULC) maps are now being used across disciplines for many different types of applications, e.g., to analyze urban heat islands or rainfall-runoff dynamics. Traditional map accuracy metrics are limited in this regard, as they only assess LULC map thematic accuracy. In reality, some types of misclassification lead to larger...
Peer-reviewed Article
In Remote Sensing
Author:
Image segmentation and geographic object-based image analysis (GEOBIA) were proposed around the turn of the century as a means to analyze high-spatial-resolution remote sensing images. Since then, object-based approaches have been used to analyze a wide range of images for numerous applications. In this Editorial, we present some highlights of...
Fact Sheet
Author:
Damasa B.
Magcale-Macandog
John Vincent
Pleto
Key point Analyzed several water quality parameters (pH, electrical conductivity (EC), total dissolved solids (TDS), Chloride (Cl), and temperature) based on 35 well samples collected by local government staff in Oriental Mindoro Province of the Philippines. Cl- concentration was calculated using salinity values based on Equation: Sal (ppt) = 0...
Peer-reviewed Article
In Environmental Science and Policy
Effective management of invasive alien species (IAS) requires comprehensive stakeholder engagement and a clear understanding of how people interact with these species. Such interactions are particularly complex in socio-ecological production landscapes and seascapes (SEPLS), where local communities and their environment are highly inter-dependent...
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