Article
Geosciences, Multidisciplinary
Purushottam Kumar Garg, Manish Mehta, Aparna Shukla, Pankaj Chauhan, Kapil Kesarwani, Sandipan Mukherjee
Summary: Supraglacial debris cover plays a significant role in shaping the dynamics of the Companion Glacier in the Central Himalaya. Field and remote sensing observations reveal that the glacier's geometry and area have remained relatively stable over the study period (2000-2020) due to the presence of thick debris and protected margins. The glacier also exhibits a less negative mass balance and an increase in average velocity compared to other glaciers in the region.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Environmental Sciences
Sabina Rakhimbekova, Denis M. O'Carroll, Clare E. Robinson
Summary: The study focused on the internal phosphorus storage mechanisms in offshore lakebed sediments and nearshore aquifer sediments. It found that phosphorus mobility in nearshore aquifers is closely linked to redox-driven iron cycling and that increased infiltration of alkaline surface water may promote phosphorus release from sediments. The study suggests that while current internal phosphorus storage mechanisms in nearshore aquifer sediments may limit phosphorus loads to lakes, there is a possibility of increased phosphorus loads in the future due to the buildup of phosphorus stores over time.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geology
Ariana Molenaar, Maarten Van Daele, Jyh-Jaan Steven Huang, Michael Strasser, Marc De Batist, Mario Pino, Roberto Urrutia, Jasper Moernaut
Summary: In-situ soft sediment deformation structures (SSDS) are commonly used as paleoseismic indicators. The deformation is mainly influenced by the presence of volcanogenic deposits and the shaking strength of earthquakes.
SEDIMENTARY GEOLOGY
(2022)
Article
Water Resources
Dongyu Zhu, Chunxia Zhou, Yikai Zhu, Boyang Peng
Summary: This study investigates the Supraglacial lakes (SGLs) of Sermeq Avannarleq glacier in southwest Greenland and analyzes the seasonal changes of these lakes from 2000 to 2020 using satellite images. The results show an increase in the area, volume, and depth of the lakes, as well as changes in the melting area and elevation.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Environmental Sciences
Milette U. Mendoza-Pascual, Masayuki Itoh, Jaydan Aguilar, Karol Sophia Agape R. Padilla, Rey Donne S. Papa, Noboru Okuda
Summary: This study found that deeper lakes store higher concentrations of CH4, while shallow lakes exhibit vertical mixing and transport of CH4. The average CH4 concentrations are influenced by depth and weather factors, with no apparent effect of daily weather parameters on CH4 concentrations below 30 meters depth in deep lakes.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Review
Geosciences, Multidisciplinary
Anna Wendleder, Andreas Schmitt, Thilo Erbertseder, Pablo D'Angelo, Christoph Mayer, Matthias H. Braun
Summary: The research indicates that warmer spring seasons with higher precipitation rates lead to an increase in supraglacial lakes on debris-covered glaciers, with a linear growth in lake area each year. While the five-year observation period is too short to derive a significant trend, the positive anomalies in temperature and precipitation suggest a potential increase in the supraglacial lake area.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Environmental Sciences
Jinjing Hu, Huabing Huang, Zhaohui Chi, Xiao Cheng, Zixin Wei, Peimin Chen, Xiaoqing Xu, Shengliang Qi, Yifang Xu, Yang Zheng
Summary: The melting of the Greenland Ice Sheet has contributed significantly to global sea-level rise. This study uses remote sensing technology to analyze the distribution and changes of supraglacial lakes in Greenland. The results show a decrease in total area and an increase in the number of supraglacial lakes from 2016 to 2018. These lakes are mainly found in western and northeastern Greenland, with their activity influenced by elevation and slope. The findings have important implications for monitoring the mass balance of the Greenland Ice Sheet and predicting future ice loss.
Article
Environmental Sciences
Rakesh Sahu, Raaj Ramsankaran, Rakesh Bhambri, Prateek Verma, Pritam Chand
Summary: The study analyzed the spatiotemporal variations of glacial lakes in the Himalayan and Karakoram mountain ranges using satellite images. The results showed an overall increase in lake area, with the Central Himalaya region experiencing the most significant growth. Additionally, some lakes were observed to have the potential to convert into proglacial lakes.
JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
(2023)
Article
Geography, Physical
Mariel C. Dirscherl, Andreas J. Dietz, Claudia Kuenzer
Summary: This study uses machine learning techniques to analyze remote sensing data of six major Antarctic Peninsula and East Antarctic ice shelves, providing new insights into the dynamics of supraglacial lakes. Results show below-average meltwater ponding on Antarctic Peninsula ice shelves during most melting seasons from 2015-2018, but above-average during summer 2019-2020 and early 2020-2021. East Antarctic ice shelves displayed more variability, with above-average lake extents during most 2016-2019 melting seasons, but below-average during 2020-2021.
Article
Geography, Physical
Kang Yang, Laurence C. Smith, Matthew G. Cooper, Lincoln H. Pitcher, Dirk van As, Yao Lu, Xin Lu, Manchun Li
Summary: The study found that at elevations above 1600 meters, 21% of supraglacial lakes and 28% of supraglacial rivers drain into moulins, even during a colder-than-average melt season; supraglacial lakes dominate instantaneous surface meltwater storage, while supraglacial rivers dominate total surface meltwater area and discharge; the combined surface area of supraglacial lakes and rivers is strongly correlated with modeled surface runoff; among the three models examined, MERRA-2 runoff yields the highest overall correlation with observed proglacial discharge in the Watson River.
JOURNAL OF GLACIOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Lavkush Kumar Patel, Parmanand Sharma, Ajit Singh, Sunil Oulkar, Bhanu Pratap, Meloth Thamban
Summary: The study revealed that glaciers in the Hindu-Kush Himalaya region have a large amount of debris cover in the ablation zone, which significantly slows down the ablation rate due to the increased thickness of supraglacial debris. Field measurements showed that approximately 15% of Chandra Basin is covered by supraglacial debris, with up to 90% debris cover in the ablation area of the studied glaciers.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Environmental Studies
Yujie Sun, Teiji Watanabe
Summary: The increase in tourist numbers and transformation of facilities were found to be key factors driving changes in mountain regions, but also leading to imbalanced development and unequal benefits. Diversification of trekking routes and improvement of facility and service quality could help mitigate these issues for sustainable mountain development.
Article
Environmental Sciences
Wanxin Xiao, Fengming Hui, Xiao Cheng, Qi Liang
Summary: An automated algorithm for retrieving the location and depth of supraglacial lakes has been developed. The algorithm demonstrates high robustness and accuracy, making it efficient in handling large amounts of data.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Environmental Sciences
Meimei Zhang, Fang Chen, Hang Zhao, Jinxiao Wang, Ning Wang
Summary: The study improved glacial lake datasets in High Mountain Asia by producing accurate maps in 2008, 2012, and 2016, showing an annual areal expansion rate of 1.38% from 2008 to 2016. The rapid expansion of glacial lakes, mainly near glaciers, is attributed to accelerated glacier melting due to global warming.
Article
Multidisciplinary Sciences
Srijana Mukhia, Anil Kumar, Poonam Kumari, Rakshak Kumar, Sanjay Kumar
Summary: In this study, eleven strains of Pseudomonas were obtained from the East Rathong supraglacial site in Sikkim Himalaya. Through multilocus sequence analysis, these strains were identified as Pseudomonas antarctica. The strains showed significant tolerance to freezing and UV-C radiations, and the genome analysis revealed cold and radiation resistance-associated genes.
Article
Remote Sensing
Sabyasachi Maiti, Amit K. Bhattacharya
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2011)
Article
Geosciences, Multidisciplinary
Narendra K. Meena, Sabyasachi Maiti, Ankush Shrivastava
JOURNAL OF APPLIED GEOPHYSICS
(2011)
Article
Geosciences, Multidisciplinary
Sabyasachi Maiti, Amit K. Bhattacharya
Article
Geology
Pankajini Mahanta, Sabyasachi Maiti
ORE GEOLOGY REVIEWS
(2018)
Article
Biodiversity Conservation
Adarsa Jana, Arkoprovo Biswas, Sabyasachi Maiti, Amit K. Bhattacharya
JOURNAL OF COASTAL CONSERVATION
(2014)
Article
Ecology
Manik Das Adhikari, Sabyasachi Maiti, Anup Bera, Nandini Ray Chaudhury
Summary: Coral reefs are in decline globally due to various tectonic-climatic factors, including enhanced sea surface temperature and rapid sea-level rise. This paper focuses on the tectonic control for coral reef morphodynamics in the northern part of Andaman, Landfall Island, following the 2004 Sumatra earthquake. Short-term changes, such as upliftment rates and shoreline change rates, are primarily related to earthquakes, wave actions, and local geomorphology changes.
REGIONAL STUDIES IN MARINE SCIENCE
(2021)
Article
Oceanography
Sabyasachi Maiti, Manik Das Adhikari, Anup Bera, Nandini Ray Chaudhury
Summary: Sea-level markers such as coastlines, landforms, tidal notches, and coral reefs can provide insights into the seismic behavior of subduction processes. In this study, the researchers investigated the changes in shape and orientation of Jolly Buoy Island in South Andaman, which were attributed to rising sea levels and active tectonics. By utilizing fieldwork, remote sensing, and GIS techniques, they systematically estimated shoreline change rate, reef uplift, and morphometry of tidal notches to track different seismic periods. The results showed higher subsidence rates in the southwest coast during the coseismic period and evident uplift in the northeast and eastern parts of the island during the postseismic period.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Geosciences, Multidisciplinary
Pankajini Mahanta, Sabyasachi Maiti
Summary: This study successfully mapped the degree and type of alteration on a large scale using remote sensing methods in a gold deposit in India. The dominant alteration processes were found to be ferruginisation, silicification, sericitization, and chloritization, with intense hydrothermal alteration zones near the exposed mineralized outcrop.
JOURNAL OF ASIAN EARTH SCIENCES-X
(2022)
Article
Environmental Sciences
Pankajini Mahanta, Sabyasachi Maiti
Summary: This study successfully mapped the distribution of hydrothermal alteration zones in sparsely vegetated terrain using high-resolution WorldView-3 data and a combination of remote sensing techniques. The presence of alteration zones was further confirmed through laboratory spectroscopy methods and field observations. The combined use of MNF, SID, and SPCA techniques provided a detailed alteration map.
JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
(2022)
Article
Geosciences, Multidisciplinary
Litan Mohanty, Vishal Pateswary, Sabyasachi Maiti, Debasis D. Mohanty
Summary: Glacial lakes in the Himalayas are rapidly increasing in both number and size, particularly in the eastern and central regions. This study used various techniques to predict the future size of these lakes and identified a significant number of critical lakes that are at high risk of enlargement and glacial lake outburst floods (GLOFs).
Article
Geosciences, Multidisciplinary
Litan Kumar Mohanty, Sabyasachi Maiti
Summary: This study examines the probability of glacial lake formation on the Himalayan glaciers by analyzing climate, glacial, and topographic factors. The results show that central glaciers are more prone to lake formation.
JOURNAL OF EARTH SYSTEM SCIENCE
(2022)
Article
Multidisciplinary Sciences
Sabyasachi Maiti
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
