scholarly journals Research Trends in the Remote Sensing of Phytoplankton Blooms: Results from Bibliometrics

2021 ◽  
Vol 13 (21) ◽  
pp. 4414
Author(s):  
Yuanrui Li ◽  
Qichao Zhou ◽  
Yun Zhang ◽  
Jingyi Li ◽  
Kun Shi
Keyword(s):  
Climate Change ◽  
United States ◽  
Remote Sensing ◽  
The United States ◽  
Research Trends ◽  
Phytoplankton Blooms ◽  
Geophysical Research ◽  
The Past ◽  
Remote Sensing Technology ◽  
Sensing Technology

Phytoplankton blooms have caused many serious public safety incidents and eco-environmental problems worldwide and became a focus issue for research. Accurate and rapid monitoring of phytoplankton blooms is critical for forecasting, treating, and management. With the advantages of large spatial coverage and high temporal resolution, remote sensing has been widely used to monitor phytoplankton blooms. Numerous advances have been made in the remote sensing of phytoplankton blooms, biomass, and phenology over the past several decades. To fully understand the development history, research hotspots, and future trends of remote-sensing technology in the study of phytoplankton blooms, we conducted a comprehensive review to systematically analyze the research trends in the remote sensing of phytoplankton blooms through bibliometrics. Our findings showed that research on the use of remote-sensing technology in this field increased substantially in the past 30 years. “Oceanography,” “Environmental Sciences,” and “Remote Sensing” are the most popular subject categories. Remote Sensing of Environment, Journal of Geophysical Research: Oceans, and International Journal of Remote Sensing were the journals with the most published articles. The results of the analysis of international influence and cooperation showed that the United States had the greatest influence in this field and that the cooperation between China and the United States was the closest. The Chinese Academy of Sciences published the largest number of papers, reaching 542 articles. Keyword and topic analysis results showed that “phytoplankton,” “chlorophyll,” and “ocean” were the most frequently occurring keywords, while “eutrophication management and monitoring,” “climate change,” “lakes,” and “remote-sensing algorithms” were the most popular research topics in recent years. Researchers are now paying increasing attention to the phenological response of phytoplankton under the conditions of climate change and the application of new remote-sensing methods. With the development of new remote-sensing technology and the expansion of phytoplankton research, future research should focus on (1) accurate observation of phytoplankton blooms; (2) the traits of phytoplankton blooms; and (3) the drivers, early warning, and management of phytoplankton blooms. In addition, we discuss the future challenges and opportunities in the use of remote sensing in phytoplankton blooms. Our review will promote a deeper and wider understanding of the field.

Using Remote-Sensing Technology (Color Infrared) To Locate Oil Spills At Lake Oologah, Oklahoma

1999 ◽  
Vol 1999 (1) ◽  
pp. 787-792
Author(s):  
Ben Banipal ◽  
Curtis Franklin ◽  
Dean Rotan ◽  
Richard Franklin
Keyword(s):  
United States ◽  
Remote Sensing ◽  
Environmental Protection Agency ◽  
The United States ◽  
Aerial Survey ◽  
Oil Field ◽  
Large Area ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Ground Truthing

ABSTRACT The Lake Oologah area of northeastern Oklahoma contains a large, mature, and declining oil field that has been active since the early 1900s. Many wells have been abandoned, but most of the abandoned wells have not been plugged or maintained according to state requirements. As a result, these wells are leaking crude oil to surrounding soils or directly into navigable waters of the United States. The United States Environmental Protection Agency (EPA), the Oklahoma Corporation Commission (OCC) and Oklahoma Energy Resources Board (OERB) have been working together to address the substantial environmental threats posed by hundreds of leaking oil wells at the approximately 26,000-acre Lake Oologah site. Based on the large area and insufficient well location data, EPA requested that Ecology and Environment, Inc. (E&E) develop an innovative method to identify well and potential surface spill locations. E&E used a state-of-the-art remote-sensing color infrared (CIR) aerial survey to collect digital aerial imagery. The historical aerial data were reviewed to refine the locations of potentially leaking wells identified by the remote-sensing technology. The CIR data were orthorectified to prepare topologically correct maps and further processed using a Geographic Information System (GIS) and thematic mapping software to identify oil-contaminated areas. To confirm the CIR data and overall technical approach developed for the project, EPA and E&E performed ground truthing for a small portion of the site to identify leaking wells and stressed vegetation. Following ground truthing, a specific color spectrum was assigned to these features, and the data were processed to predict the locations of oil contamination sources throughout the site. Based on these results, an overall aerial assessment of site contamination is being developed to identify potentially leaking wells and minimize labor-intensive ground truthing efforts.

Assessment on 2000-2010 Ecosystem Function Changes of Yiwulvshan National Nature Scenic Area

2014 ◽  
Vol 1051 ◽  
pp. 489-494
Author(s):  
Xiao Chen Wang ◽  
Jing Hai Zhu ◽  
Yuan Man Hu ◽  
Wei Ling Liu
Keyword(s):  
Remote Sensing ◽  
Ecosystem Function ◽  
Primary Productivity ◽  
Water Conservation ◽  
Net Primary Productivity ◽  
Remote Sensing Data ◽  
Vegetation Coverage ◽  
The Past ◽  
Remote Sensing Technology ◽  
Sensing Technology

Based on the remote-sensing data and ground data, this study is conducted on the ecosystem function of Yiwulvshan National Nature Scenic Area (hereinafter as “Yiwulvshan Scenic Area”) from 2000 to 2010 with the GIS (geographic information system) and RS (remote sensing) technology, so as to provide reference for better environmental protection of the scenic area. It is shown from the results that there is no obvious change of land use in Yiwulvshan Scenic Area; while the capacity for soil and water conservation is slightly improved mainly due to increase of vegetation coverage; the vegetation net primary productivity declines somewhat about 5.27% in past 10 years; and biodiversity is slightly increased. As a whole, the ecosystem function of Yiwulvshan Scenic Area basically kept stable in the past 10 years, which indicated that the existing regulations can effectively protect the ecological function of the Scenic Area.

scholarly journals Energy Policy: Past or Prologue?

Daedalus ◽  
2012 ◽  
Vol 141 (2) ◽  
pp. 31-44 ◽  
Author(s):  
Michael J. Graetz
Keyword(s):  
Climate Change ◽  
United States ◽  
Energy Policy ◽  
Energy Security ◽  
Energy Production ◽  
The United States ◽  
Short Term ◽  
The Past ◽  
Oil Embargo ◽  
Silver Bullet

The United States was remarkably complacent about energy policy until the Arab oil embargo of 1973. Since then, we have relied on unnecessarily costly regulations and poorly designed subsidies to mandate or encourage particular forms of energy production and use. Our presidents have quested after an elusive technological “silver bullet.” Congress has elevated parochial interests and short-term political advantages over national needs. Despite the thousands of pages of energy legislation enacted over the past four decades, Congress has never demanded that Americans pay a price that reflects the full costs of the energy they consume. Given our nation's economic fragility, our difficult fiscal situation, and the daunting challenges of achieving energy security and limiting climate change, we can no longer afford second- and third-best policies. This essay discusses the failures of the past and how we might avoid repeating them.

scholarly journals Research Trends on the Rotator Cuff Tendon: A Bibliometric Analysis of the Past 2 Decades

2021 ◽  
Vol 9 (1) ◽  
pp. 232596712097368
Author(s):  
Lei Lei ◽  
Chi Zhang ◽  
Fu-Hua Sun ◽  
Yujie Xie ◽  
Bin Liang ◽  
...  
Keyword(s):  
United States ◽  
Stem Cell ◽  
Rotator Cuff ◽  
Web Of Science ◽  
Platelet Rich Plasma ◽  
The United States ◽  
Research Trends ◽  
Rotator Cuff Tendon ◽  
The Past ◽  
Number Of Citations

Background: Clinical research on the rotator cuff tendon is increasing, and new approaches are being applied to rotator cuff disease. Considering the integration of research resources and research trends, it is necessary to conduct an analysis of recent research on the topic. Purpose: To identity the research trends, influential journals, key researchers, and core countries of rotator cuff tendon research between 2000 and 2019. Study Design: Cross-sectional study. Methods: All the literature related to rotator cuff tendon research was retrieved from the Web of Science Core Collection on January 7, 2020. Qualitative and quantitative analyses were processed based on Web of Science and CiteSpace. Results: A total of 4131 studies, which included 3830 articles and 301 reviews, were obtained. There was an upward trend of studies on the topic, with small fluctuations in the past 2 decades. The United States had the most studies, and the number of studies from other countries increased over the study period. Most of the funding sources came from the United States. Articles in the Journal of Shoulder and Elbow Surgery had the most citations for rotator cuff research. Frontier topics, such as arthroscopic repair, mesenchymal stem cell, and “platelet-rich plasma, were identified. The number of citations in 2018 ( r = 0.280; P = .005) and 2019 ( r = 0.307; P = .002) had a weak positive correlation with publication date, indicating that the more recently published articles had a higher number of citations. Conclusion: Valuable information on rotator cuff research based on bibliometric analysis was identified. Arthroscopic repair, mesenchymal stem cell, and platelet-rich plasma might be the research frontiers in this field, and researchers should focus on these topics in future studies.

scholarly journals Toxic Algal Blooms Are Worsening with Climate Change

Eos ◽  
2019 ◽  
Vol 100 ◽  
Author(s):  
Kate Wheeling
Keyword(s):  
Climate Change ◽  
Remote Sensing ◽  
Algal Blooms ◽  
Freshwater Lakes ◽  
Global Survey ◽  
Remote Sensing Technology ◽  
Sensing Technology

Researchers use remote sensing technology to carry out a global survey of large freshwater lakes.

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