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  • Article
  • Open Access
87 Citations
20,829 Views
21 Pages

Autonomous Water Quality Monitoring and Water Surface Cleaning for Unmanned Surface Vehicle

  • Hsing-Cheng Chang,
  • Yu-Liang Hsu,
  • San-Shan Hung,
  • Guan-Ru Ou,
  • Jia-Ron Wu and
  • Chuan Hsu

5 February 2021

Water is one of the most precious resources. However, industrial development has made water pollution a critical problem today and thus water quality monitoring and surface cleaning are essential for water resource protection. In this study, we have...

  • Article
  • Open Access
1 Citations
3,318 Views
16 Pages

The Response of the Water Surface Layer to Internal Turbulence and Surface Forcing

  • Mohammad Barzegar,
  • Darek Bogucki,
  • Brian K. Haus and
  • Mingming Shao

19 February 2021

We have carried out an experimental study of the turbulence kinetic energy dissipation rate (ϵ), temperature dissipation rate (χ), and turbulent heat flux (THF) within the water surface layer in the presence of non-breaking wave, surface convection,...

  • Article
  • Open Access
26 Citations
5,300 Views
16 Pages

Assessment of the Presence of Hepatitis E Virus in Surface Water and Drinking Water in Portugal

  • Daniel Salvador,
  • Célia Neto,
  • Maria João Benoliel and
  • Maria Filomena Caeiro

Hepatitis E virus (HEV) is a non-enveloped single-stranded positive-sense RNA virus, belonging to the Hepeviridae family, resistant to environmental conditions, and transmitted by the consumption of contaminated water. This virus is responsible for b...

  • Article
  • Open Access
2 Citations
2,017 Views
19 Pages

Fluid Dynamics of Interacting Rotor Wake with a Water Surface

  • Xing-Zhi Bai,
  • Zhe Zhang,
  • Wen-Hua Wu,
  • Xiao Wang,
  • Qi Zhan,
  • Dai-Xian Zhang and
  • Lei Yu

9 September 2024

Rotor-type cross-media vehicles always induce considerably complex mixed air–water flows when approaching the water surface, resulting in relative thrust loss and structural damage on rotor. The interactions between a water surface and rotor wa...

  • Article
  • Open Access
5 Citations
5,492 Views
11 Pages

20 August 2024

Perfluoroalkyl and poly-fluoroalkyl substances (PFAS) are among the synthetic chemicals employed by various industries since the 1950s and the most critical persistent organic pollutants (POPs) that led to emerging concerns due to high persistency, t...

  • Article
  • Open Access
2,010 Views
21 Pages

13 September 2024

Increasing water withdrawals and changes in land cover/use are critically altering surface water bodies, often causing a noticeable reduction in their area. Such anthropogenic modification of surface waters needs to be thoroughly examined to recogniz...

  • Article
  • Open Access
48 Citations
7,460 Views
18 Pages

30 April 2017

To reduce the size and cost of an integrated infrared (IR) and green airborne LiDAR bathymetry (ALB) system, and improve the accuracy of the green ALB system, this study proposes a method to accurately determine water surface and water bottom heights...

  • Article
  • Open Access
219 Citations
16,712 Views
16 Pages

Open Surface Water Mapping Algorithms: A Comparison of Water-Related Spectral Indices and Sensors

  • Yan Zhou,
  • Jinwei Dong,
  • Xiangming Xiao,
  • Tong Xiao,
  • Zhiqi Yang,
  • Guosong Zhao,
  • Zhenhua Zou and
  • Yuanwei Qin

5 April 2017

Open surface water bodies play an important role in agricultural and industrial production, and are susceptible to climate change and human activities. Remote sensing data has been increasingly used to map open surface water bodies at local, regional...

  • Article
  • Open Access
30 Citations
4,720 Views
13 Pages

Influence of Surface Water Bodies on the Land Surface Temperature of Bangladesh

  • Najeebullah Khan,
  • Shamsuddin Shahid,
  • Eun-Sung Chung,
  • Sungkon Kim and
  • Rawshan Ali

28 November 2019

Recent climate change has resulted in the reduction of several surface water bodies (SWBs) all around the globe. These SWBs, such as streams, rivers, lakes, wetlands, reservoirs, and creeks have a positive impact on the cooling of the surrounding cli...

  • Article
  • Open Access
13 Citations
5,258 Views
18 Pages

Parameterization of a Bayesian Normalized Difference Water Index for Surface Water Detection

  • Lorena Liuzzo,
  • Valeria Puleo,
  • Salvatore Nizza and
  • Gabriele Freni

The normalized difference water index (NDWI) has been extensively used for different purposes, such as delineating and mapping surface water bodies and monitoring floods. However, the assessment of this index (based on multispectral remote sensing da...

  • Abstract
  • Open Access
1,423 Views
1 Page

Changes in Net Global Surface Water Area Since 1985

  • Zahra Kalantari,
  • Sonia Borja and
  • Georgia Destouni

Spatial and temporal characteristics of surface water resources (e.g., extension, connectivity, seasonality) are key elements in water allocation, climate and hydrological regulation, ecosystem functioning, and the food-energy-water nexus. Changes in...

  • Article
  • Open Access
35 Citations
7,535 Views
21 Pages

Surface Water Dynamics from Space: A Round Robin Intercomparison of Using Optical and SAR High-Resolution Satellite Observations for Regional Surface Water Detection

  • Christian Tottrup,
  • Daniel Druce,
  • Rasmus Probst Meyer,
  • Mads Christensen,
  • Michael Riffler,
  • Bjoern Dulleck,
  • Philipp Rastner,
  • Katerina Jupova,
  • Tomas Sokoup and
  • Marc Paganini
  • + 20 authors

17 May 2022

Climate change, increasing population and changes in land use are all rapidly driving the need to be able to better understand surface water dynamics. The targets set by the United Nations under Sustainable Development Goal 6 in relation to freshwate...

  • Article
  • Open Access
7 Citations
2,295 Views
17 Pages

16 August 2023

Understanding the law of surface water–groundwater conversion in the face of high-intensity human activities is still a challenge. In this study, we employed statistical and system dynamics methods to investigate the surface water–groundw...

  • Article
  • Open Access
14 Citations
2,812 Views
15 Pages

22 April 2021

Qingtu Lake is located between Tengger Desert and Badain Jilin Desert, Gansu Province, Northwest China. It is the terminal lake of Shiyang River. In recent years, Qingtu lake has maintained a certain area of water surface and vegetation by artificial...

  • Article
  • Open Access
15 Citations
4,789 Views
21 Pages

16 October 2023

Surface water is an important parameter for water resource management and terrestrial water circulation research that is closely related to human production and livelihood. With the rapid development of remote sensing technology and cloud computing p...

  • Article
  • Open Access
1 Citations
1,837 Views
14 Pages

An Amphiphilic Surface with Improved Thermal Radiation for Water Harvesting

  • Han Wang,
  • Shengtao Li,
  • Ye Zhang,
  • Weihui Wu,
  • Khaled Abdeen Mousa Ali and
  • Changyou Li

Water scarcity poses a significant challenge for people living in arid areas. Despite the effectiveness of many bioinspired surfaces in promoting vapor condensation, their water-harvesting efficiency is insufficient. This is often exacerbated by over...

  • Article
  • Open Access
1 Citations
2,264 Views
20 Pages

Study on the Surface Water Chemical Composition and Water Quality Pollution Characteristics of the Shiyang River Basin, China

  • Haifeng Wang,
  • Shaoqing Wu,
  • Jihai Xu,
  • Lixia Zhang,
  • Kuijing Li,
  • Jisheng Li,
  • Heping Shu and
  • Jihua Chu

The surface water quality issue in arid regions is becoming increasingly severe and has become a significant challenge for global environmental protection and water resource management. By continuously collecting surface water samples (2000~2024) and...

  • Article
  • Open Access
9 Citations
6,205 Views
13 Pages

Long-Term Study of Monitoring History and Change Trends in Surface Water Quality in China

  • Fengying Zhang,
  • Lanyu Lin,
  • Wenpan Li,
  • Dekun Fang,
  • Zhuo Lv,
  • Mingsheng Li,
  • Guangwen Ma,
  • Yeyao Wang,
  • Li Wang and
  • Lihuan He

4 July 2022

To investigate the monitoring history and long-term change trends in surface water quality in China since the reform and opening up, the history of surface water environment monitoring is summarized, including monitoring scope, monitoring methods, an...

  • Article
  • Open Access
38 Citations
9,576 Views
21 Pages

Compositing the Minimum NDVI for Daily Water Surface Mapping

  • Xingwang Fan,
  • Yuanbo Liu,
  • Guiping Wu and
  • Xiaosong Zhao

20 February 2020

Capturing high frequency water surface dynamics via optical remote sensing is important for understanding hydro-ecological processes over seasonally flooded wetlands. However, it is a difficult task due to the presence of clouds on satellite images....

  • Proceeding Paper
  • Open Access
1,613 Views
6 Pages

Inland water bodies play a crucial role in both ecological and sociological contexts. The distribution of these water bodies can change over time due to natural or human-induced factors. Monitoring the extent of surface water is vital to understand e...

  • Article
  • Open Access
33 Citations
11,646 Views
16 Pages

Lake Chad Total Surface Water Area as Derived from Land Surface Temperature and Radar Remote Sensing Data

  • Frederick Policelli,
  • Alfred Hubbard,
  • Hahn Chul Jung,
  • Ben Zaitchik and
  • Charles Ichoku

7 February 2018

Lake Chad, located in the middle of the African Sahel belt, underwent dramatic decreases in the 1970s and 1980s leaving less than ten percent of its 1960s surface water extent as open water. In this paper, we present an extended record (dry seasons 1...

  • Technical Note
  • Open Access
2 Citations
3,225 Views
14 Pages

Irrigation Control through Acoustic Proximal Sensing of the Onset of Surface Water

  • Stuart Bradley,
  • Anna Radionova,
  • Chandra Ghimire,
  • Laura Grundy,
  • Seth Laurenson and
  • Val Snow

19 November 2020

Irrigation is a useful crop enhancement procedure up to the point where free surface water appears. However, over-irrigation can lead to an accumulation of free water on the soil surface, which in turn results in overland flow and a high risk of cont...

  • Article
  • Open Access
8 Citations
3,094 Views
22 Pages

Short-Term Variations in Water Temperature of the Antarctic Surface Layer

  • Yuyi Hu,
  • Weizeng Shao,
  • Jun Li,
  • Chunling Zhang,
  • Lingqiao Cheng and
  • Qiyan Ji

18 February 2022

Against the background of global climate change, the warming water temperature of Antarctic surface water (<500 m) is worthy of study. Therefore, the purpose of this study was to investigate short-term variations in the water temperature of Antarc...

  • Article
  • Open Access
204 Citations
18,478 Views
18 Pages

Automated Extraction of Surface Water Extent from Sentinel-1 Data

  • Wenli Huang,
  • Ben DeVries,
  • Chengquan Huang,
  • Megan W. Lang,
  • John W. Jones,
  • Irena F. Creed and
  • Mark L. Carroll

21 May 2018

Accurately quantifying surface water extent in wetlands is critical to understanding their role in ecosystem processes. However, current regional- to global-scale surface water products lack the spatial or temporal resolution necessary to characteriz...

  • Article
  • Open Access
55 Citations
5,061 Views
21 Pages

Combining Water Quality Indices and Multivariate Modeling to Assess Surface Water Quality in the Northern Nile Delta, Egypt

  • Mohamed Gad,
  • Salah Elsayed,
  • Farahat S. Moghanm,
  • Mohammed H. Almarshadi,
  • Abdullah S. Alshammari,
  • Khaled M. Khedher,
  • Ebrahem M. Eid and
  • Hend Hussein

29 July 2020

Assessing surface water quality for drinking use in developing countries is important since water quality is a fundamental aspect of surface water management. This study aims to improve surface water quality assessments and their controlling mechanis...

  • Proceeding Paper
  • Open Access
3 Citations
4,147 Views
10 Pages

Water-Saving Techniques and Practices for On-Farm Surface Irrigation Systems

  • José Manuel Gonçalves,
  • Qingfeng Miao,
  • Isabel Maria Duarte and
  • Haibin Shi

As surface irrigation systems are one of the most used water management techniques in the world, often working with high water losses, there is an urgency to their improvement. Modern methods that provide water savings and labour reduction require ad...

  • Article
  • Open Access
10 Citations
4,345 Views
19 Pages

Groundwater–Surface Water Interaction—Analytical Approach

  • Marek Nawalany,
  • Grzegorz Sinicyn,
  • Maria Grodzka-Łukaszewska and
  • Dorota Mirosław-Świątek

23 June 2020

Modelling of water flow in the hyporheic zone and calculations of water exchange between groundwater and surface waters are important issues in modern environmental research. The article presents the Analytical Hyporheic Flux approach (AHF) permittin...

  • Article
  • Open Access
7 Citations
2,772 Views
13 Pages

Ecological Effects of Surface Water Evolution in the Yellow River Delta

  • Yunlong Li,
  • Shuping Huang,
  • Xianglun Kong,
  • Mei Han,
  • Min Wang and
  • Hongkuan Hui

20 October 2022

With the ecological protection and high-quality development of the Yellow River Basin rising to China’s national strategy, the Yellow River Delta is facing a historic development opportunity, and the surface water problems in this region are be...

  • Review
  • Open Access
13 Citations
7,064 Views
18 Pages

A Review on Methods for Measurement of Free Water Surface

  • Gašper Rak,
  • Marko Hočevar,
  • Sabina Kolbl Repinc,
  • Lovrenc Novak and
  • Benjamin Bizjan

7 February 2023

Turbulent free-surface flows are encountered in several engineering applications and are typically characterized by the entrainment of air bubbles due to intense mixing and surface deformation. The resulting complex multiphase structure of the air&nd...

  • Article
  • Open Access
5 Citations
2,081 Views
24 Pages

Multi-Scale Variation in Surface Water Area in the Yellow River Basin (1991–2023) Based on Suspended Particulate Matter Concentration and Water Indexes

  • Zhiqiang Zhang,
  • Xinyu Guo,
  • Lianhai Cao,
  • Xizhi Lv,
  • Xiuyu Zhang,
  • Li Yang,
  • Hui Zhang,
  • Xu Xi and
  • Yichen Fang

23 September 2024

Surface water is a crucial part of terrestrial ecosystems and is crucial to maintaining ecosystem health, ensuring social stability, and promoting high-quality regional economic development. The surface water in the Yellow River Basin (YRB) has a hig...

  • Article
  • Open Access
955 Views
19 Pages

Artificial Surface Water Construction Aggregated Water Loss Through Evaporation in the North China Plain

  • Ziang Wang,
  • Yan Zhou,
  • Wenge Zhang,
  • Shimin Tian,
  • Yaoping Cui,
  • Haifeng Tian,
  • Xiaoyan Liu and
  • Bing Han

4 August 2025

As a typical grain base with a dense population and high-level urbanization, the North China Plain (NCP) faces a serious threat to its sustainable development due to water shortage. Surface water area (SWA) is a key indicator for continuously measuri...

  • Article
  • Open Access
1 Citations
2,971 Views
19 Pages

20 August 2024

A method for estimating river water surface elevation (WSE) from Landsat imagery using the river inundation area–water surface elevation (RIA-WSE) rating curve constructed from the U.S. Geological Survey Topobathymetric Elevation Model (TEM) da...

  • Abstract
  • Open Access
1,244 Views
2 Pages

Degradation of Microcystis sp. in Surface Water by Ozone

  • Jesús J. Beltrán de Heredia Alonso,
  • José Martín Gallardo and
  • María del Mar Barrado Moreno

Due to the gradual increase in the concentration of algae, in general, in continental surface water reservoirs, it is necessary to incorporate advanced technologies in drinking water treatment plants with a view to reduce/eliminate the algae present....

  • Article
  • Open Access
44 Citations
13,862 Views
19 Pages

Artificial Intelligence for Surface Water Quality Evaluation, Monitoring and Assessment

  • Rishi Rana,
  • Anshul Kalia,
  • Amardeep Boora,
  • Faisal M. Alfaisal,
  • Raied Saad Alharbi,
  • Parveen Berwal,
  • Shamshad Alam,
  • Mohammad Amir Khan and
  • Obaid Qamar

9 November 2023

The study utilizes a dataset with seven critical constraints and creates models that are estimated based on various metrics. The goal is to categorize and properly predict the water quality index (WQI) using the suggested models. The outcomes show th...

  • Article
  • Open Access
36 Citations
6,729 Views
15 Pages

Subpixel Surface Water Extraction (SSWE) Using Landsat 8 OLI Data

  • Longhai Xiong,
  • Ruru Deng,
  • Jun Li,
  • Xulong Liu,
  • Yan Qin,
  • Yeheng Liang and
  • Yingfei Liu

18 May 2018

Surface water extraction from remote sensing imagery has been a very active research topic in recent years, as this problem is essential for monitoring the environment, ecosystems, climate, and so on. In order to extract surface water accurately, we...

  • Review
  • Open Access
30 Citations
6,702 Views
16 Pages

17 January 2023

Surface passivation engineering is an imperative way to improve photoelectrode performance for photoelectrochemical (PEC) water splitting. To the best of our knowledge, it has never been systematically reviewed in a feature article. In this review, w...

  • Article
  • Open Access
5 Citations
2,159 Views
17 Pages

27 March 2024

The Dongting Lake Plain is a major ecological reserve for river and lake wetlands in the Yangtze River Basin, with complex river and lake relationships and frequent water flow exchange. Studies on the hydrochemical characteristics and the mechanism o...

  • Article
  • Open Access
6 Citations
4,477 Views
17 Pages

The Impact of Organic and Intensive Agricultural Activity on Groundwater and Surface Water Quality

  • Laima Česonienė,
  • Daiva Šileikienė,
  • Laura Čiteikė,
  • Gintautas Mozgeris and
  • Koike Takayoshi

22 March 2023

The poor condition of surface water is still a problem in many countries, including Lithuania. To assess the impact of organic agricultural production on groundwater and surface water quality in Lithuania, surface water samples from rivers and other...

  • Article
  • Open Access
76 Citations
7,868 Views
23 Pages

Interaction of Surface Water and Groundwater Influenced by Groundwater Over-Extraction, Waste Water Discharge and Water Transfer in Xiong’an New Area, China

  • Meijia Zhu,
  • Shiqin Wang,
  • Xiaole Kong,
  • Wenbo Zheng,
  • Wenzhao Feng,
  • Xianfu Zhang,
  • Ruiqiang Yuan,
  • Xianfang Song and
  • Matthias Sprenger

15 March 2019

Understanding the interaction of surface water and groundwater affected by anthropogenic activities is of great importance for water resource and water quality management. The Xiong’an New Area, located in the North China Plain, has been design...

  • Article
  • Open Access
9 Citations
5,861 Views
12 Pages

It was reported in many papers that the magnetic field (MF) affects properties of water, and, among others, its surface tension. Thus, it should be reflected in changes of the wetting contact angle of a water droplet deposited on the solid surface. I...

  • Feature Paper
  • Review
  • Open Access
199 Citations
19,553 Views
18 Pages

Membranes with Surface-Enhanced Antifouling Properties for Water Purification

  • Nima Shahkaramipour,
  • Thien N. Tran,
  • Sankara Ramanan and
  • Haiqing Lin

Membrane technology has emerged as an attractive approach for water purification, while mitigation of fouling is key to lower membrane operating costs. This article reviews various materials with antifouling properties that can be coated or grafted o...

  • Article
  • Open Access
64 Citations
8,408 Views
17 Pages

19 August 2020

Inland surface water is highly dynamic, seasonally and inter-annually, limiting the representativity of the water coverage information that is usually obtained at any single date. The long-term dynamic water extent products with high spatial and temp...

  • Article
  • Open Access
25 Citations
5,499 Views
14 Pages

Assessment of Surface Water Quality in the Baia Mare Area, Romania

  • Ioana Monica Sur,
  • Ana Moldovan,
  • Valer Micle and
  • Evelyn Terez Polyak

3 October 2022

Baia Mare area represents one of the most important mining areas of Romania. Although the mining activities carried out here are currently inactive (since 2012), they generated residual pollution that negatively influences all the environmental facto...

  • Article
  • Open Access
4 Citations
4,497 Views
16 Pages

23 July 2019

The research purpose of this study was to uncover the grouping of the water supply-and-demand structure in the Yellow River Basin (YRB) of China, focusing on the balance between groundwater and surface-water. Comparing the structure of water usage an...

  • Article
  • Open Access
5 Citations
2,934 Views
17 Pages

Strong and Weak Supervision Combined with CLIP for Water Surface Garbage Detection

  • Yunlin Ma,
  • Zhenxiong Chu,
  • Hao Liu,
  • Ye Zhang,
  • Chengzhao Liu,
  • Dexin Li and
  • Wei He

4 September 2023

Water surface garbage has a significant impact on the protection of water environments and ecological balance, making water surface garbage object detection a critical task. Traditional supervised object detection methods require a large amount of an...

  • Article
  • Open Access
15 Citations
2,970 Views
15 Pages

Simulation of Surface and Subsurface Water Quality in Hyper-Arid Environments

  • Ahmed Mohamed,
  • Ahmed Asmoay,
  • Saad S. Alarifi and
  • Musaab A. A. Mohammed

Forty-eight water samples (30 groundwater and 18 surface water samples) were collected from the study region. Physical and chemical examinations were performed on the water samples to determine the values of various variables. Several graphs, sheets,...

  • Article
  • Open Access
6 Citations
3,161 Views
8 Pages

Surface Quality of Wood Plastic Composites as Function of Water Exposure

  • Cagatay Tasdemir,
  • Ibrahim Halil Basboga and
  • Salim Hiziroglu

25 July 2020

The objective of this study was to evaluate the surface quality of experimentally manufactured wood plastic composite (WPC) samples exposed to water soaking. Eastern redcedar (Juniperus virginiana L.), which is one of the invasive species in Oklahoma...

  • Article
  • Open Access
26 Citations
6,070 Views
19 Pages

5 August 2024

To address the issues of decreased detection accuracy, false detections, and missed detections caused by scale differences between near and distant targets and environmental factors (such as lighting and water waves) in surface target detection tasks...

  • Article
  • Open Access
7 Citations
3,165 Views
16 Pages

18 December 2023

The requirements for water intended for domestic and economic purposes prompt the search for new solutions in surface water treatment technologies. In this study, the enhancement of coagulation processes by connections with adsorption and/or ozonatio...

  • Article
  • Open Access
13 Citations
3,304 Views
21 Pages

28 March 2022

Accurately mapping surface water fractions is essential to understanding the distribution and area of small water bodies (SWBs), which are numerous and widespread. Traditional spectral unmixings based on the linear mixture model require high-quality...

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