Article
Agronomy
Arthur Ribeiro, Rodrigo S. Ramos, Tamiris A. de Araujo, Joao R. S. Soares, Jhersyka da S. Paes, Vitor C. R. de Araujo, Cristina S. Bastos, Robert L. Koch, Marcelo C. Picanco
Summary: The study found that B. tabaci exhibits an aggregated distribution in tomato fields with a strong spatial dependence. Overall, the densities of adults and nymphs are higher at the field edges and reach economic thresholds. The results suggest a colonization pattern for B. tabaci starting at the edges and spreading inwards in tomato fields, which can improve management strategies.
PEST MANAGEMENT SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Mirko Maelicke, Alberto Guadagnini, Erwin Zehe
Summary: This study focuses on extending geostatistical software to effectively cope with uncertainty in geostatistical applications. The extension includes a rich component library, pre-built interfaces and an online application. The study discusses replacing the empirical variogram with its uncertainty bound to acknowledge underlying uncertainties and allows for a probabilistic description of the variogram and its parameters. The approach enables multiple interpretations of a sample and a multi-model context for geostatistical applications.
SPATIAL STATISTICS
(2023)
Article
Environmental Sciences
Shuangling Chen, Yu Meng, Sheng Lin, Jingyuan Xi
Summary: Phytoplankton in the northwest Pacific plays a crucial role in absorbing atmospheric CO2 and driving the ocean carbon cycle. This study investigated the long-term interannual variations of phytoplankton biomass in this region using satellite data from 1997 to 2020. The results showed significant spatial and temporal dynamics of phytoplankton biomass with decreasing patterns poleward. Seasonal blooms were dominant, with spring and fall blooms in subpolar waters and only a spring bloom in subtropical seas. Interannually, an increasing trend of phytoplankton biomass was observed in subpolar oceans, while a slight but significant negative trend was found in the subtropical gyre. The negative trend in subtropical waters was driven by surface warming and limited nutrient supply, while in subpolar waters, there were potential external nutrient supplies. No significant connections were found between phytoplankton biomass variations and climate indices in the study area.
Article
Engineering, Environmental
Ivan Edward Biamont-Rojas, Sheila Cardoso-Silva, Marisa Dantas Bitencourt, Andre Cordeiro Alves dos Santos, Viviane Moschini-Carlos, Andre Henrique Rosa, Marcelo Pompeo
Summary: Spatial distribution of copper in sediments and its toxicological potential were compared in two reservoirs. Copper concentrations were higher and more heterogenous in the reservoir where copper sulfate was applied. The sediments were classified into different categories based on sediment quality guides and enrichment factor analysis. The classification was supported by the differences in copper concentrations and distribution patterns between the two reservoirs.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Microbiology
Andrea Botero-Ramirez, Sheau-Fang Hwang, Stephen E. Strelkov
Summary: The study found that the pathogen Plasmodiophora brassicae exhibited a patchy distribution, mainly located at field edges and entrances, with infected areas increasing in size over time. Soil pH, boron, calcium, and magnesium concentrations were not found to have a significant impact on the inoculum density of P. brassicae.
Article
Water Resources
Paulo Gamero, Miguel Angel Uribe-Opazo, Fernanda De Bastiani, Jerry Adriani Johann
Summary: This study evaluated the correlation between precipitation and second-crop corn yield in the state of Parana, Brazil using spatial statistics. The spatial analysis revealed significant spatial associations between municipalities throughout the state. The exponential model was found to be the best fit, indicating a spatial dependence of 317.26 km, and the correlation between precipitation and yield was validated by the co-dispersion coefficient.
HYDROLOGICAL SCIENCES JOURNAL
(2022)
Article
Remote Sensing
Jun Chen, Xianqiang He, Zhongli Liu, Nan Lin, Qianguo Xing, Delu Pan
Summary: The study developed an algorithm called IDAS-SGC to extract high-quality ocean color data from severely sun glint-contaminated images, providing spatially smooth and consistent ocean color products in remote sensing applications. Compared to other algorithms, IDAS-SGC proved to be more effective in deriving color data from sun glint regions.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Brian B. Barnes, Chuanmin Hu, Sean W. Bailey, Bryan A. Franz
Summary: This study examined the sensitivity of ocean color data products to changes in the near-infrared band vicarious gain, finding that reflectance values generally decrease with increasing gain, but with specific ranges of standard deviations. Through sensitivity analyses, a near-infrared band vicarious gain of approximately 1.025 was identified as most closely aligned with expectations.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Environmental Sciences
Xin Su, Yifeng Wei, Lunche Wang, Ming Zhang, Daoyang Jiang, Lan Feng
Summary: This study evaluated and compared the accuracy, stability, and continuity of four deep blue (DB) aerosol optical depth (AOD) products in Asia, and found that VIIRS DB has the highest accuracy and stability. Although there are differences in the AOD averages among different products, their changing trends are consistent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Geological
Opeyemi E. Oluwatuyi, Rebecca Holt, Rasika Rajapakshage, Shaun S. Wulff, Kam Ng
Summary: This study assesses the inherent variability in the geomaterial parameter and develops a site investigation plan with low uncertainty by quantifying the parameter uncertainty. Using sparse borehole data to predict a site geomaterial configuration is crucial for determining the design of the investigation plan.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2022)
Article
Environmental Sciences
F. Loffredo, A. Scala, M. Serra, M. Quarto
Summary: In confined spaces, such as living environments and workplaces, high concentrations of radon may pose a health risk. Dense indoor radon concentration maps are needed for effective risk reduction measures tailored to local conditions. An innovative method based on Gini index computation is proposed to create interpolated maps and describe the distribution of radon concentration.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2021)
Article
Soil Science
Jianhua Jin, Baozhong Zhang, Xiaomin Mao
Summary: The study introduced a stratified soil moisture sampling method based on the spatial autocorrelation of auxiliary variables (SSAV) which showed significantly lower mean relative error and standard deviation of soil moisture compared to the SRS and STRS methods. The root mean squared error between observed and estimated soil moisture with the SSAV method was also lower, demonstrating higher accuracy and precision in monitoring. Overall, the SSAV method is recommended for placing soil moisture sampling points to estimate mean soil moisture.
SOIL & TILLAGE RESEARCH
(2022)
Article
Computer Science, Interdisciplinary Applications
Paulo Roberto Moura de Carvalho, Joao Felipe Coimbra Leite da Costa
Summary: This study proposes a computational method based on the Fourier Integral Method to fit variogram models to variogram maps. Utilizing genetic algorithms to find model parameters with good fitness, and obtaining the parameters of the desired variogram model through cluster analysis.
COMPUTERS & GEOSCIENCES
(2021)
Article
Environmental Sciences
Arturo Buelga Diaz, Cesar Castanon Fernandez, Gonzalo Ares, Daniel Arias Prieto, Isidro Diego Alvarez
Summary: Variogram calculation is a fundamental tool for studying ore grade data and can reveal hidden structures and preferential directions of mineralization. This paper introduces two strategies, variogram maps and graphical representation of pair search areas, to assist in variogram construction. The freeware tool RecMin Variograms is easy to use and can help optimize mining planning and minimize environmental impact.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Engineering, Electrical & Electronic
Romain Hugonnet, Fanny Brun, Etienne Berthier, Amaury Dehecq, Erik Schytt Mannerfelt, Nicolas Eckert, Daniel Farinotti
Summary: The monitoring of Earth's and planetary surface elevations through digital elevation models (DEMs) is advancing rapidly. However, DEMs often have instrument noise and varying vertical precision, necessitating the need for estimating and propagating uncertainties to ensure reliable land elevation assessments in the future.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2022)
Article
Ecology
John P. Ryan, Kelly J. Benoit-Bird, William K. Oestreich, Paul Leary, Kevin B. Smith, Chad M. Waluk, David E. Cade, James A. Fahlbusch, Brandon L. Southall, John E. Joseph, Tetyana Margolina, John Calambokidis, Andrew DeVogelaere, Jeremy A. Goldbogen
Summary: The trophic transfer of energy in marine food webs is influenced by prey aggregation and exploitation by predators. This study examines the hypothesis that predators of forage species track upwelling circulation in which prey aggregation occurs. Through observations of upwelling dynamics, forage species' aggregation, and blue whale movement, the study finds that blue whales track upwelling plume circulation when wind-driven upwelling intensifies and forage species aggregate. These findings highlight the resource tracking strategy employed by blue whales and have implications for the ecology and conservation of predators dependent on forage species responsive to episodic environmental dynamics.
Article
Environmental Sciences
William J. Jenkins, Scott C. Doney, Alan M. Seltzer, Christopher R. German, Dempsey E. E. Lott III, Kevin L. Cahill
Summary: By comparing the noble gas signatures of deep waters from the North Atlantic and Pacific Ocean, it is found that the sea level pressure around Antarctica has decreased over the past two millennia, resulting in the addition of glacial melt water to form deep water. The vertical profiles of noble gases in the deep Pacific show exponential relationships with depth, and helium isotopes indicate the injection of non-atmospheric helium at mid-depth. The isotope ratio of this injected helium decreases from south to north, likely due to various factors including seafloor spreading, radiogenic helium release from increased sediment thickness, and emission of radiogenic helium through cold seeps along the Alaskan and North American margins.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Environmental Sciences
Jay Fuhrman, Candelaria Bergero, Maridee Weber, Seth Monteith, Frances M. Wang, Andres F. Clarens, Scott C. Doney, William Shobe, Haewon McJeon
Summary: Carbon dioxide removal (CDR) is a critical tool in limiting global warming, and a diverse set of CDR approaches have important benefits and costs for energy-water-land systems. An integrated assessment model was used to evaluate various CDR approaches, including bioenergy with carbon capture and storage, afforestation, direct air capture with carbon storage, enhanced weathering, biochar, and direct ocean capture with carbon storage. These approaches have different levels of carbon removal, deployment, and impacts across regions, with a global removal capacity of approximately 10 GtCO(2) yr(-1). A diverse portfolio of CO2 removal strategies can achieve gigatonne-scale removals while limiting risks to the water-energy-land system.
NATURE CLIMATE CHANGE
(2023)
Article
Microbiology
Heather H. Kim, Charlotte Laufkoetter, Tomas Lovato, Scott C. Doney, Hugh W. Ducklow
Summary: By utilizing a three-dimensional coupled ocean biogeochemical model, this study investigates the responses of bacteria to climate change. It assesses the credibility of century-scale projections of bacterial carbon stock and rates in the upper 100 m layer using skill scores and measurements for the contemporary period. The results show that bacterial biomass trends are sensitive to regional trends in temperature and organic carbon stocks under different climate scenarios.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Environmental Sciences
Annie Bourbonnais, Bonnie X. X. Chang, Rolf E. Sonnerup, Scott C. Doney, Mark A. Altabet
Summary: This study conducted research on the concentration, stable isotopic composition, and isotopomer of nitrous oxide in the Pacific region using data collected from the Global Ocean Ship-based Hydrographic Investigations Program. The study found that the production of nitrous oxide significantly increased under low oxygen conditions near the oxygen-deficient zone.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
Alexander J. Smith, Karen McGlathery, Yaping Chen, Carolyn J. Ewers Lewis, Scott C. Doney, Keryn Gedan, Carly K. LaRoche, Peter Berg, Michael L. Pace, Julie C. Zinnert, Matthew L. Kirwan
Summary: Coastal landscapes consist of shifting mosaics of distinct ecosystems, and rapid losses and gains within these ecosystems largely offset each other, resulting in relatively stable areas and increased carbon storage. However, the strength of these compensatory mechanisms may weaken as climate change exacerbates carbon losses.
Article
Environmental Sciences
Chloe Fauvel, Jay Fuhrman, Yang Ou, William Shobe, Scott Doney, Haewon McJeon, Andres Clarens
Summary: Net-zero greenhouse gas emission targets are crucial for stabilizing global climate, and carbon dioxide removal (CDR) is a key strategy. CDR can be achieved through nature-based or engineered approaches, but its deployment will have significant regional impacts. Using modeling, we analyzed how regional resources will influence and be influenced by CDR deployment in the United States. Our findings indicate that CDR will be extensively but unevenly deployed across the country, with certain states having the potential to become net exporters of negative emissions. However, resource reallocation and increased water and fertilizer use will be necessary.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Tim Devries, Kana Yamamoto, Rik Wanninkhof, Nicolas Gruber, Judith Hauck, Jens Daniel Mueller, Laurent Bopp, Dustin Carroll, Brendan Carter, Thi-Tuyet-Trang Chau, Scott C. Doney, Marion Gehlen, Lucas Gloege, Luke Gregor, Stephanie Henson, Ji Hyun Kim, Yosuke Iida, Tatiana Ilyina, Peter Landschuetzer, Corinne Le Quere, David Munro, Cara Nissen, Lavinia Patara, Fiz F. Perez, Laure Resplandy, Keith B. Rodgers, Joerg Schwinger, Roland Seferian, Valentina Sicardi, Jens Terhaar, Joaquin Trinanes, Hiroyuki Tsujino, Andrew Watson, Sayaka Yasunaka, Jiye Zeng
Summary: This contribution analyzes the processes that determine the global ocean carbon sink and its trends and variability over the period 1985-2018 using models and observation-based products. The study finds that anthropogenic CO2 dominates the ocean CO2 sink, while climate-driven variability is potentially large but highly uncertain.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Geography, Physical
Benjamin T. Saenz, Darren C. Mckee, Scott C. Doney, Douglas G. Martinson, Sharon E. Stammerjohn
Summary: Processes driving changes in sea-ice seasonality and thickness in the warm-shelf region of the West Antarctic Peninsula were investigated using simulations and observations. The study found that both surface and subsurface thermodynamic and dynamic processes play important roles in sea-ice variability. The results also highlighted the mechanism in which a shoaling pycnocline enhances upward deep-water heat fluxes.
JOURNAL OF GLACIOLOGY
(2023)
Article
Multidisciplinary Sciences
Qinyi Li, Daphne Meidan, Peter Hess, Juan A. Anel, Carlos A. Cuevas, Scott Doney, Rafael P. Fernandez, Maarten van Herpen, Lena Hoeglund-Isaksson, Matthew S. Johnson, Douglas E. Kinnison, Jean-Francois Lamarque, Thomas Roeckmann, Natalie M. Mahowald, Alfonso Saiz-Lopez
Summary: This study evaluates the potential environmental impacts of increasing reactive chlorine emissions as a climate mitigation strategy to reduce methane levels. The results show that significant changes occur in other important climate forcers, such as tropospheric ozone. The quantity and method of adding chlorine, as well as its interactions with climate pathways, must be carefully considered.
NATURE COMMUNICATIONS
(2023)
Article
Astronomy & Astrophysics
Sarah E. Lang, Kelly M. A. Luis, Scott C. Doney, Olivia Cronin-Golomb, Max C. N. Castorani
Summary: Understanding and attributing changes to water clarity is crucial for studying and managing coastal ecosystems. However, variability in space and time limits the ability to describe patterns of water clarity. Regional satellite algorithms can provide a more comprehensive understanding of these changes.
EARTH AND SPACE SCIENCE
(2023)
Article
Environmental Sciences
Yifan Guan, Gretchen Keppel-Aleks, Scott C. Doney, Christof Petri, Dave Pollard, Debra Wunch, Frank Hase, Hirofumi Ohyama, Isamu Morino, Justus Notholt, Kei Shiomi, Kim Strong, Rigel Kivi, Matthias Buschmann, Nicholas Deutscher, Paul Wennberg, Ralf Sussmann, Voltaire A. Velazco, Yao Te
Summary: Atmospheric carbon dioxide (CO2) accumulation and its interannual variations (IAVs) are critical for understanding carbon-climate feedbacks. The Orbiting Carbon Observatory-2 (OCO-2) satellite offers an opportunity to study CO2 IAV with better spatial coverage compared to traditional monitoring techniques. This study analyzes OCO-2 data and finds that there are significant IAVs of CO2, which are related to climatic variations such as El Nino-Southern Oscillation (ENSO).
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Environmental
Wade E. Fritzeen, Patrick R. O'Rourke, Jay G. Fuhrman, Lisa M. Colosi, Sha Yu, William M. Shobe, Scott C. Doney, Haewon C. McJeon, Andres F. Clarens
Summary: The chemical industry contributes significantly to CO2 emissions, but the implementation of emerging decarbonization strategies and processes can lead to substantial reductions. However, achieving net-zero emissions is dependent on the global deployment of carbon capture and storage (CCS), as well as alternative feedstocks and proper waste treatment of plastics.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Judith Hauck, Luke Gregor, Cara Nissen, Lavinia Patara, Mark Hague, Precious Mongwe, Seth Bushinsky, Scott C. Doney, Nicolas Gruber, Corinne Le Quere, Manfredi Manizza, Matthew Mazloff, Pedro M. S. Monteiro, Jens Terhaar
Summary: Based on data from the RECCAP2 project, we assessed the CO2 uptake in the Southern Ocean and found that it is only half of what was previously estimated. Furthermore, there is a knowledge gap in understanding the increase in CO2 sink since 2000. It is important to improve our observation and understanding of the drivers of the carbon cycle in order to accurately assess the Southern Ocean's role in CO2 absorption.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Geosciences, Multidisciplinary
Zhibo Shao, Yangchun Xu, Hua Wang, Weicheng Luo, Lice Wang, Yuhong Huang, Nona Sheila R. Agawin, Ayaz Ahmed, Mar Benavides, Mikkel Bentzon-Tilia, Ilana Berman-Frank, Hugo Berthelot, Isabelle C. Biegala, Mariana B. Bif, Antonio Bode, Sophie Bonnet, Deborah A. Bronk, Mark V. Brown, Lisa Campbell, Douglas G. Capone, Edward J. Carpenter, Nicolas Cassar, Bonnie X. Chang, Dreux Chappell, Yuh-ling Lee Chen, Matthew J. Church, Francisco M. Cornejo-Castillo, Amalia Maria Sacilotto Detoni, Scott C. Doney, Cecile Dupouy, Marta Estrada, Camila Fernandez, Bieito Fernandez-Castro, Debany Fonseca-Batista, Rachel A. Foster, Ken Furuya, Nicole Garcia, Kanji Goto, Jesus Gago, Mary R. Gradoville, M. Robert Hamersley, Britt A. Henke, Cora Horstmann, Amal Jayakumar, Zhibing Jiang, Shuh-Ji Kao, David M. Karl, Leila R. Kittu, Angela N. Knapp, Sanjeev Kumar, Julie LaRoche, Hongbin Liu, Jiaxing Liu, Caroline Lory, Carolin R. Loscher, Emilio Maranon, Lauren F. Messer, Matthew M. Mills, Wiebke Mohr, Pia H. Moisander, Claire Mahaffey, Robert Moore, Beatriz Mourino-Carballido, Margaret R. Mulholland, Shin-ichiro Nakaoka, Joseph A. Needoba, Eric J. Raes, Eyal Rahav, Teodoro Ramirez-Cardenas, Christian Furbo Reeder, Lasse Riemann, Virginie Riou, Julie C. Robidart, Vedula V. S. S. Sarma, Takuya Sato, Himanshu Saxena, Corday Selden, Justin R. Seymour, Dalin Shi, Takuhei Shiozaki, Arvind Singh, Rachel E. Sipler, Jun Sun, Koji Suzuki, Kazutaka Takahashi, Yehui Tan, Weiyi Tang, Jean-Eric Tremblay, Kendra Turk-Kubo, Zuozhu Wen, Angelicque E. White, Samuel T. Wilson, Takashi Yoshida, Jonathan P. Zehr, Run Zhang, Yao Zhang, Ya-Wei Luo
Summary: This study presents an updated version (version 2) of the global oceanic diazotroph database, which significantly increases the number of in situ diazotrophic measurements and provides more detailed insights into nitrogen fixation in the global ocean. Version 2 yields significantly higher estimates of nitrogen fixation rates compared to version 1, particularly in the South Pacific and North Atlantic regions. Furthermore, additional data sheets for non-cyanobacterial diazotrophs and cell-specific N2 fixation rates have been included in version 2, enhancing the database's comprehensiveness.
EARTH SYSTEM SCIENCE DATA
(2023)
