Article
Engineering, Electrical & Electronic
Baowen Yang, Ling Wu, Zhengshan Ju, Xiangnan Liu, Meiling Liu, Tingwei Zhang, Yuqi Xu
Summary: This article presents a subannual scale deforestation detection algorithm that combines multiple data sources to construct a combined time series and applies a sliding window to spatially normalize the data for accurate identification of deforestation events.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Environmental Sciences
Bahram Choubin, Farzaneh Sajedi Hosseini, Omid Rahmati, Mansor Mehdizadeh Youshanloei, Mohammad Jalali
Summary: This study aimed to investigate the capability of different machine learning models in analyzing land susceptibility to dust emissions. The results showed that the WSRF model outperformed benchmark models. The study provided insights into the applicability of the ensemble model, WSRF, in accurately mapping dust emissions susceptibility.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Ali Darvishi Boloorani, Najmeh Neysani Samany, Ramin Papi, Masoud Soleimani
Summary: The study developed an applicable, robust, and generalizable approach by integrating machine learning classifiers into dust source susceptibility mapping in the Tigris-Euphrates river basin. The final accurate susceptible dust sources map was obtained, providing important reference data for research purposes.
Article
Geosciences, Multidisciplinary
Zhen Wang, Siyu Chen, Chenxi Liu, Yu Chen, Yongqi Gong, Shanlin Cheng
Summary: The dynamic variations in surface bareness play a crucial role in dust modeling. This study estimates the dynamic dust source regions and emissions at the global scale, considering anthropogenic land use and land cover change. The results show significant seasonal and spatial variability in anthropogenic dust emissions, while natural dust emissions are concentrated in large desert areas.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geochemistry & Geophysics
Alexandra Grande, Amanda H. Schmidt, Paul R. Bierman, Lee B. Corbett, Carla Lopez-Lloreda, Jane Willenbring, William H. McDowell, Marc W. Caffee
Summary: This study examined the temporal variability of cosmogenic isotopes Be-10 in river sand from different watersheds in Puerto Rico and found that major landscape disturbing events such as landslides can lower Be-10 concentrations in the sand, impacting the accurate inference of long-term erosion rates.
EARTH AND PLANETARY SCIENCE LETTERS
(2021)
Article
Multidisciplinary Sciences
Ziwu Pan, Jun Zhu, Junjie Liu, Jiangyan Gu, Zhenzhen Liu, Fen Qin, Yu Pan
Summary: This study estimated air temperature in the Yellow River Basin using multi-source data and analysis methods, revealing variations in mountain-mass effects among different geomorphic regions and the impact of seasonal changes on temperature. The results show that the GWR method and ground station observations improved the accuracy of temperature estimation, highlighting unique temperature characteristics in the region according to its geomorphology.
Article
Environmental Sciences
Lerato Shikwambana, Mahlatse Kganyago
Summary: This study investigated the meteorological influence of mineral dust in the south-western African region. The results show that the Namib desert is the main source of dust in the region, with the density and distribution varying by seasons. The greatest dust distribution occurs in the June-July-August (JJA) season, attributed to the southwesterly winds. Small dust aerosols are observed at highest altitudes. Favorable meteorological conditions play a vital role in the production and distribution of dust aerosols. Over a long time, dust column density trend increased, while precipitation and surface wind speed trends decreased.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Civil
Rajith Mukundan, Rakesh K. Gelda, Mahrokh Moknatian, Xuesong Zhang, Tammo S. Steenhuis
Summary: This study transformed the SWAT-Carbon (C) model to simulate dissolved organic carbon (DOC) from variable source runoff areas in a humid forested watershed in the northeastern United States. The calibrated model accurately simulated streamflow and DOC flux, and showed sensitivity to soil properties and precipitation. The good performance of the model makes it a valuable tool for understanding the influence of climate and watershed management on DOC and developing mitigation strategies.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Rosemary Huck, Robert G. Bryant, James King
Summary: The observation and quantification of mineral dust fluxes from high-latitude sources is challenging due to limitations of in situ observations and satellite remote sensing data. This study focuses on a well-instrumented high-latitude dust source in Canada and explores the chronology of dust emissions using multiple methods. The results reveal the factors affecting the detection of dust, the shortcomings of data quality choices, and the under-representation of dust in both ground and space remote sensing methods.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Article
Meteorology & Atmospheric Sciences
Mohamad Nobakht, Maria Shahgedanova, Kevin White
Summary: This study presented the first inventory of dust emission sources in Central Asia and northwestern China based on MODIS imagery data from 2003 to 2012. It found that dust point sources were unevenly distributed, with the highest frequency occurring in specific regions like the Taklimakan desert and the Aralkum. Dust emissions peaked in different seasons in different regions, such as in spring in China and eastern Kazakhstan, and in summer in Central Asia and western Kazakhstan.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Geosciences, Multidisciplinary
Sandor Kormos, Reinhard F. Sachsenhofer, Achim Bechtel, Balazs Geza Radovics, Katalin Milota, Felix Schubert
Summary: The Eocene and Lower Oligocene rocks in the Hungarian Palaeogene Basin are identified as potential source rocks for crude oil accumulations. Specifically, the Kosd Formation and Tard Clay Formation are considered high-quality gas and oil-prone source rocks based on Rock-Eval data analysis from borehole samples. The molecular parameters of crude oil samples suggest a shaly source rock deposited in a marine/brackish environment, with organic matter mainly composed of aquatic biomass such as algae, dinoflagellates, and chemoautotrophic bacteria.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Water Resources
Maurus Borne, Christof Lorenz, Tanja C. Portele, Eduardo Savio P. R. Martins, Francisco das Chagas Vasconcelos Junior, Harald Kunstmann
Summary: This study focuses on the Sa tilde o Francisco River Basin in Brazil and applies an Ensemble Kalman Filter framework to predict sub-basin-scale runoff using freely available global datasets. The results show that the quality of runoff predictions is closely linked to the performance of rainfall seasonal predictions, with skillful predictions up to two months ahead in most sub-basins. Anthropogenic conditions can also affect the predictions, particularly in areas with non-stationary runoff time-series.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Water Resources
Clivia Dias Coelho, Demetrius David da Silva, Michel Castro Moreira, Naziano Pantoja Filizola, Ayan Fleischmann
Summary: This study improved the hydrological modeling performance in an Amazonian sub-basin by refining the hydraulic geometry (HG) relationships, especially for hydrologically homogeneous regions. The refined HG relationships provided better estimates for width and depth in the basin, increasing the model performance by 18% to 65% in some gauge stations.
HYDROLOGICAL SCIENCES JOURNAL
(2021)
Article
Geosciences, Multidisciplinary
Hehe Chen, Lesli J. Wood, Robert L. Gawthorpe
Summary: Morphological scaling relationships between source-to-sink segments have been explored in modern and deep-time systems, with drainage outlet spacing, cross-sectional area, and fan area all providing key constraints on source area dimensions and sediment dispersal dynamics. The integration of core, well-logs, and seismic data across the Dampier Sub-basin in Australia has enabled a comprehensive study of deep-time source-to-sink systems in a late syn-rift succession.
Article
Geosciences, Multidisciplinary
Boris Secke Bekonga Gouott, Mbida Yem, Joseph Quentin Yene Atangana, Pierre Eric Nkoa Nkoa, Serge Edouard Angoua Biouele, Yakufu Niyazi, Ovie Emmanuel Eruteya
Summary: In this study, the geometry and internal configuration of a submarine channel system in the Kribi-Campo sub-basin, offshore Cameroon, during the Late Cretaceous period, were investigated using 3D seismic reflection data and well-log data. The results provide important insights into the distribution of deep-water sediments with potential for hydrocarbon exploration in the region.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Environmental Sciences
S. M. Bengtson Nash, M. C. Baddock, E. Takahashi, A. Dawson, R. Cropp
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2017)
Article
Soil Science
R. S. Van Pelt, M. C. Baddock, T. M. Zobeck, P. D'Odorico, S. Ravi, A. Bhattachan
Editorial Material
Geography, Physical
Adrian Chappell, Jeffrey A. Lee, Matthew Baddock, Thomas E. Gill, Jeffrey E. Herrick, John F. Leys, Beatrice Marticorena, Lynda Petherick, Kerstin Schepanski, John Tatarko, Matt Telfer, Nicholas P. Webb
Article
Geosciences, Multidisciplinary
J. R. C. von Holdt, F. D. Eckardt, M. C. Baddock, G. F. S. Wiggs
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2019)
Article
Ecology
Matthew C. Baddock, Robert G. Bryant, Miguel Dominguez Acosta, Thomas E. Gill
Summary: The study discusses the advancements in dust source research using remote sensing techniques, highlighting the potential of CubeSat constellations with high-temporal-and-spatial-resolution sensors. It emphasizes the improvement in understanding the spatio-temporal characteristics of dust emissions through detailed observations provided by CubeSats.
JOURNAL OF ARID ENVIRONMENTS
(2021)
Article
Geography, Physical
J. R. C. von Holdt, F. D. Eckardt, M. C. Baddock, M. H. T. Hipondoka, G. F. S. Wiggs
Summary: This study compared three different methods for characterising mineral dust at emission sources, demonstrating that different sampling techniques can lead to varying representations of dust characteristics. Standardized techniques are crucial for meaningful comparisons, while accurate characterisation methods remain a priority within the discipline.
Article
Geography, Physical
Daniel R. Muhs, Joaquin Meco, James R. Budahn, Gary L. Skipp, Kathleen R. Simmons, Matthew C. Baddock, Juan F. Betancort, Alejandro Lomoschitz
Summary: Africa is the main source of dust in the world today, and dust storms frequently deposit sediment on the Canary Islands. Through the study of Pleistocene aeolian sands on Lanzarote and Fuerteventura, it was found that soils on these islands are formed from both locally derived basalt and African dust, with potential dust sources from both the Sahara and Sahel regions. Accretionary-inflationary profile development, from dust accretion, is evident in the upward growth of Canary Islands paleosols.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Geography, Physical
Nathaniel R. Bristow, Jim Best, Giles F. S. Wiggs, Joanna M. Nield, Matthew C. Baddock, Pauline Delorme, Kenneth T. Christensen
Summary: This paper investigates the flow characteristics of early-stage aeolian bedforms and finds that nascent forms exhibit more gently sloping lee sides and a reverse asymmetry in their flow-parallel bed profile compared to mature dunes. The research indicates that strong flow perturbations can occur over protodunes, despite their low-angled slopes. The shape of the crest is found to be an important factor in the development of flow perturbations. These findings provide valuable insights into the quantitative understanding of flow-form-transport couplings that govern the morphodynamics of subtle, low-angle aeolian protodunes.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geography, Physical
Mark Hennen, Adrian Chappell, Brandon L. Edwards, Akasha M. Faist, Tarek Kandakji, Matthew C. Baddock, Brandi Wheeler, Gayle Tyree, Ronald Treminio, Nicholas P. Webb
Summary: The magnitude and frequency of dust emissions are critical for land management. By calibrating dust emissions with MODIS data and optical satellite observations, it is found that dust emissions are concentrated in the biomes of the Great Plains and North American Deserts, and the dynamics of wind friction play a significant role in dust emissions.
Article
Geography, Physical
Maud A. J. van Soest, Joanna E. Bullard, Clay Prater, Matthew C. Baddock, N. John Anderson
Summary: This article investigates the deposition of dust in high latitude regions and finds annual and seasonal variations. The study reveals that dust deposition is influenced by temperature and wind speed, and the observed dust-related weather type data is inconsistent. Therefore, direct quantification of dust processes is crucial for accurately understanding the dust cycle in high latitudes.
EARTH SURFACE PROCESSES AND LANDFORMS
(2022)
Article
Geosciences, Multidisciplinary
Giles F. S. Wiggs, Matthew C. Baddock, David S. G. Thomas, Richard Washington, Joanna M. Nield, Sebastian Engelstaedter, Robert G. Bryant, Frank D. Eckardt, Johannah R. C. von Holdt, Shayne Kotting
Summary: This study provides new insights into dust dynamics by measuring aerosol concentrations and meteorological conditions for a full year at Etosha Pan in Namibia. It reveals that dust emissions occur throughout the year, with peak horizontal flux in the spring due to strengthening erosive winds and highly desiccating conditions. The research highlights a strong seasonal differentiation in the meteorological mechanisms controlling dust uplift and shows that a significant portion of annual horizontal dust flux is generated by a few high magnitude events.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Geosciences, Multidisciplinary
P. Delorme, J. M. Nield, G. F. S. Wiggs, M. C. Baddock, N. R. Bristow, J. L. Best, K. T. Christensen, P. Claudin
Summary: Sand patches are common in both desert and coastal aeolian environments and are precursors to early stage protodunes. Researchers have discovered a mechanism to explain how sand patches can form on non-erodible surfaces, such as desert gravels and moist beaches. This mechanism is supported by field evidence of changes in sand transport dynamics and in situ patch formation at the surface boundary.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geography, Physical
Joanna E. Bullard, Clay Prater, Matthew C. Baddock, N. John Anderson
Summary: This study examines the diurnal and seasonal cycles of atmospheric dust concentration in high latitude dust source areas near the Greenland Ice Sheet. It finds that the relationships between dust emissions and environmental drivers are complex and differ from those observed in low latitude regions. Understanding these relationships is crucial for modeling atmospheric dust over different timescales.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geosciences, Multidisciplinary
Pauline Delorme, Giles F. S. Wiggs, Matthew C. Baddock, Philippe Claudin, Joanna M. Nield, Andrew Valdez
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2020)
Article
Geography, Physical
Matthew C. Baddock, Joanna M. Nield, Giles F. S. Wiggs
EARTH SURFACE PROCESSES AND LANDFORMS
(2018)
