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2020

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Articles 421 - 450 of 3204

Full-Text Articles in Earth Sciences

Rangeland Management And Hydrology, K. Wood, H. Rubio, C. Wood Oct 2020

Rangeland Management And Hydrology, K. Wood, H. Rubio, C. Wood

IGC Proceedings (1977-2023)

No abstract provided.


Restoration Of Vegetation And Soil Nutrients On The Northern Area Of Loess Plateau, Long Bai, L. M. Liu, B. Zhao, Y. Liu, H. X. Wang, T. Kobayashi Oct 2020

Restoration Of Vegetation And Soil Nutrients On The Northern Area Of Loess Plateau, Long Bai, L. M. Liu, B. Zhao, Y. Liu, H. X. Wang, T. Kobayashi

IGC Proceedings (1977-2023)

No abstract provided.


Determination Of Intensity And Socio‐Economic Natural Resources Degradation Factors In Iran Territory, Nasser Ansari, S. J. Sayedaghlaghi, M. H. Ghasemi Oct 2020

Determination Of Intensity And Socio‐Economic Natural Resources Degradation Factors In Iran Territory, Nasser Ansari, S. J. Sayedaghlaghi, M. H. Ghasemi

IGC Proceedings (1977-2023)

No abstract provided.


Influence Of Exclosure Year On Community Structure And Species Diversity On Typical Steppe, G. L. Shan, Zhu Xu, David R. Kemp, F. Ning Oct 2020

Influence Of Exclosure Year On Community Structure And Species Diversity On Typical Steppe, G. L. Shan, Zhu Xu, David R. Kemp, F. Ning

IGC Proceedings (1977-2023)

No abstract provided.


Rangeland Monitoring And Adaptive Management, T. J. Bai, Y. Q. Liang Oct 2020

Rangeland Monitoring And Adaptive Management, T. J. Bai, Y. Q. Liang

IGC Proceedings (1977-2023)

No abstract provided.


Patch Selection By Cattle Can Be Quantified Using Satellite Imagery And Gps In Extensive, Semi-Arid Savannas, Christopher Holloway, Peter O'Reagain, Nigel Tomkins Oct 2020

Patch Selection By Cattle Can Be Quantified Using Satellite Imagery And Gps In Extensive, Semi-Arid Savannas, Christopher Holloway, Peter O'Reagain, Nigel Tomkins

IGC Proceedings (1977-2023)

No abstract provided.


Monitoring Natural Pasture Status In Uruguay Using Satellite Images And A Soil Water Balance Model, J. P. Castaño, A. Giménez, L. Olivera Oct 2020

Monitoring Natural Pasture Status In Uruguay Using Satellite Images And A Soil Water Balance Model, J. P. Castaño, A. Giménez, L. Olivera

IGC Proceedings (1977-2023)

No abstract provided.


Restoring The Biodiversity Of The Roggeveld‐Renosterveld: Evaluation, Multiplication And Establishment Of Indigenous Plant Species On Old Agricultural Fields, J. C. Botha, C. F. Cupido, N. Visser Oct 2020

Restoring The Biodiversity Of The Roggeveld‐Renosterveld: Evaluation, Multiplication And Establishment Of Indigenous Plant Species On Old Agricultural Fields, J. C. Botha, C. F. Cupido, N. Visser

IGC Proceedings (1977-2023)

No abstract provided.


Effects Of Slope And Defoliation Intensity On The Effectiveness Of Desert Wheatgrass For Reduced Runoff And Soil Erosion Under Simulated Rainfall, Haitao Zuo, Juying Wu Oct 2020

Effects Of Slope And Defoliation Intensity On The Effectiveness Of Desert Wheatgrass For Reduced Runoff And Soil Erosion Under Simulated Rainfall, Haitao Zuo, Juying Wu

IGC Proceedings (1977-2023)

No abstract provided.


The Cause Of Grassland Desertification And Its Managing Strategies In Inner Mongolia, P. R. China (Session: A6), Zhaorigetu Chen, Hasibagan, Yuhai Bao, Mary Ann Rankin Oct 2020

The Cause Of Grassland Desertification And Its Managing Strategies In Inner Mongolia, P. R. China (Session: A6), Zhaorigetu Chen, Hasibagan, Yuhai Bao, Mary Ann Rankin

IGC Proceedings (1977-2023)

No abstract provided.


Seedling Recruitment In Steppe Communities, Na Zhao, Kun Wang, Zengwen Wang Oct 2020

Seedling Recruitment In Steppe Communities, Na Zhao, Kun Wang, Zengwen Wang

IGC Proceedings (1977-2023)

No abstract provided.


Uwrl Welcomes Two New Faculty Members, Utah Water Research Laboratory Oct 2020

Uwrl Welcomes Two New Faculty Members, Utah Water Research Laboratory

News

Last spring, the UWRL and USU’s Department of Civil and Environmental Engineering began seeking bright, creative, and interdisciplinary researchers “whose research will yield more holistic approaches to solving water problems in natural, built, and/or agricultural environments” to “lead and develop the next generation of resilient solutions to water problems in these linked environments.” And despite a worldwide pandemic, we were able to welcome two such individuals to the UWRL in time for fall semester!


Mars 2020: A Step Closer To The Red Planet, Kevin Ng, Matthew Khargie, Omadevi Singh, Sashi Singh, Nazrul I. Khandaker, Rajendra Persaud Oct 2020

Mars 2020: A Step Closer To The Red Planet, Kevin Ng, Matthew Khargie, Omadevi Singh, Sashi Singh, Nazrul I. Khandaker, Rajendra Persaud

Publications and Research

This research paper primarily focuses on the NASA Mars 2020 mission, but will also revisit and discuss past rover missions. As the Mars 2020 mission is ongoing, some information will be updated accordingly. For decades, humans have dreamed of the colonization of Mars for many reasons, such as some similarities shared by Earth and Mars or the close proximity to our planet. In fact, dozens of films, books, and articles have been written, especially in the past 2 decades, about the possibility. As technology advances, we develop newer equipment to hopefully make this possibility into a reality. Of course, placing …


Human Health And Wellness In Space: A Review Of Common Effects, Current Research, And Methods Of Prevention, Sonnet Xu, Rajendra Persaud, Nazrul I. Khandaker, Jasmin Budhan Oct 2020

Human Health And Wellness In Space: A Review Of Common Effects, Current Research, And Methods Of Prevention, Sonnet Xu, Rajendra Persaud, Nazrul I. Khandaker, Jasmin Budhan

Publications and Research

Space poses a threat to space crew wellness, where microgravity, isolation, radiation, and other conditions exert strain on human health. This study explores the changes to the human body in space and how it contributes to major threats to health during spaceflights. The effects of the hostile environment of outer space are all examined here, along with resultant changes to behavior, physiology, and the difficulty of remote diagnosis for health treatment in space. This review also considers the implications to the human cartilage, brain, and eyes along with the various other hazards and physiological alterations.

Human health in space is …


Microgravity And Its Bearing With Space Flight-Related Research, Farhan Tanvir, Nazrul I. Khandaker, Rajendra Persaud, Jeff Guan Oct 2020

Microgravity And Its Bearing With Space Flight-Related Research, Farhan Tanvir, Nazrul I. Khandaker, Rajendra Persaud, Jeff Guan

Publications and Research

This study investigates the unique properties and applications of microgravity in the context of spaceflight research. Understanding and harnessing the behaviors of a microgravity environment opens up the doors to long-term space travel and consequently, future missions to other planets within our solar system. More specifically, simulating and conducting experiments in microgravity environments helps us explore its effects on the various necessary tasks and behaviors that are carried out during spaceflight. The most immediate and pronounced effects of microgravity are on human physiology. In particular, studies have shown that prolonged exposure to microgravity can result in a 20% decrease in …


An Analysis Of Astrophotography: How Accurate Is The Photography Of Space?, Denice Morales, Rajendra Persaud, Nazrul I. Khandaker, Omadevi Sing, Matthew Khargie Oct 2020

An Analysis Of Astrophotography: How Accurate Is The Photography Of Space?, Denice Morales, Rajendra Persaud, Nazrul I. Khandaker, Omadevi Sing, Matthew Khargie

Publications and Research

The current research goal is to talk about astrophotography that is designed to interact with non-STEM majors in the natural sciences, and to teach future or beginner astronomers and citizen scientists. The course depends on constructivist tutorial strategies to instruct records, cut price and photo processing strategies, and at the same time address mathematical anxiety. The goal of the pathways is to create an awesome ride in the natural sciences, which has been traditionally linked to imparting pertinent education to a cohort of citizen scientists and novice astronomers - businesses which historically have analyzed an amazing volume of files (both …


Impacts Of Land-Use Change On The Menominee River In Jo Daviess County, Illinois, Preston J. Konop Oct 2020

Impacts Of Land-Use Change On The Menominee River In Jo Daviess County, Illinois, Preston J. Konop

Theses and Dissertations

This study addresses land-use changes in Jo Daviess County, Illinois, and their effects on the Menominee River. The Menominee River flows north to south through Jo Daviess County, and southern Grant County, Wisconsin. Many of the surrounding properties are agricultural and have undergone developmental and land-use changes that may affect the flood flashiness of the Menominee River. The concern with increasing flood flashiness of the Menominee River include more frequent flooding events, undercutting of riverbanks, and increased amounts of sediment transport from upstream locations into the Mississippi River. Increases in impermeable surfaces have led to greater amounts of runoff during …


The Nasa Murep Aerospace Academy Program (Maa): Playing A Pivotal Role In Bridging The Knowledge-Gap During The Covid-19 Pandemic, Nazrul I. Khandaker, Omadevi Singh, Sol De Leon, Violeta Escandon, Tajriyan Chowdhury, Anthony Ramnarain, Sahaj Khan, Najina Tojiboeva, Raj Datta, Brian Sukhnandan, Farshad Hosseinie, Fiorella Guevara Oct 2020

The Nasa Murep Aerospace Academy Program (Maa): Playing A Pivotal Role In Bridging The Knowledge-Gap During The Covid-19 Pandemic, Nazrul I. Khandaker, Omadevi Singh, Sol De Leon, Violeta Escandon, Tajriyan Chowdhury, Anthony Ramnarain, Sahaj Khan, Najina Tojiboeva, Raj Datta, Brian Sukhnandan, Farshad Hosseinie, Fiorella Guevara

Publications and Research

The COVID-19 pandemic forced all City University of New York CUNY campuses, including York College, to offer virtual learning opportunities to students. NASA MAA, being an outreach STEM program, also fell under the same category and swiftly came-up with a plan to move into DLM. Initial surveys indicated the basic household technology needed to attend virtual sessions and showed complicated situations where parents had multiple children attending the summer 2020 session. To ensure greater participation, computers, iPads, Chromebooks, and cell phones were used. Common platforms. like WebEx and Zoom, were routinely used by our MAA teachers to disseminate online content …


The Multidisciplinary Enrichment Of Undergraduate Environmental Geology Students From International Summer Programs. Case Study: Summer 2019 3mugis, Russia, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer Oct 2020

The Multidisciplinary Enrichment Of Undergraduate Environmental Geology Students From International Summer Programs. Case Study: Summer 2019 3mugis, Russia, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer

Publications and Research

Hosted by the People’s Friendly University of Russia (RUDN), the Modeling, Monitoring, and Managing of Urban Green Infrastructure (3MUGIS) summer program was organized by the collaboration of the New York City Urban Soil Institute (NYC-USI), City University of New York – Brooklyn College, and under the auspices of the International Union of Soil Sciences (IUSS). The program consisted of one-week lecture sessions and two-weeks of fieldwork across five bioclimatic zones, ranging from the sub-arctic tundra of the Kola Peninsula to the Southern Steps of Rostov, Black Sea. Faculty and guest lecturers included scientists with various expertise from Germany, USA, Russia, …


Integrating Digital Tools In Remote Learning To Enhance The Delivery Methods Of Technical Content In Undergraduate Geosciences, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer Oct 2020

Integrating Digital Tools In Remote Learning To Enhance The Delivery Methods Of Technical Content In Undergraduate Geosciences, Ruslana Baker, Malek Shami, Nazrul I. Khandaker, Stanley Schleifer

Publications and Research

The global transition to remote learning due to the COVID-19 pandemic was an extremely difficult task for both students and faculty in geological sciences. Technical courses, such as Structural Geology, Mineralogy, Petrology, and Invertebrate Paleontology, that require in-person lectures and laboratory sessions involving various rocks and mineral samples, fossils, maps, and models, were a major concern at the start. The challenge of delivering the technical content via Microsoft Teams, Skype, Webex, Blackboard Collaborate Ultra, Zoom, and other internet based platforms was not only a burden for the faculty to carry, as students were struggling to conceptualize outcrop-and-type-section-based information and link …


The Urban Heat Island Effect And Its Impact On The Climate And Landscape Of Phoenix, Arizona, Gurwinder Sahota, Nazrul I. Khandaker, Ali Zarine, Malek Shami Oct 2020

The Urban Heat Island Effect And Its Impact On The Climate And Landscape Of Phoenix, Arizona, Gurwinder Sahota, Nazrul I. Khandaker, Ali Zarine, Malek Shami

Publications and Research

This paper examines the impact of the urban heat island effect on the climate and landscape of Phoenix, Arizona. Urbanization is quickly becoming the most influential environmental factor because of the exponential growth in the human population coupled with industrialization, modernization, and commercialization, which has become the allure of urban centers worldwide. While urbanization offers numerous advantages, it comes at the cost of altering the environment by replacing permeable natural soils and vegetation with impermeable urban surfaces, such as pavements, buildings, and other such structures. This impervious modification results in absorption of solar energy that is taken up by the …


The Importance Of Undergraduates Exposure To The Geosciences Industry: Preliminary Case Study-Based Outcome At Cuny – York College, Malek Shami, Nazrul I. Khandaker, Ruslana Baker, Gurwinder Sahota, Toralv B. Munro, Stanley Schleifer Oct 2020

The Importance Of Undergraduates Exposure To The Geosciences Industry: Preliminary Case Study-Based Outcome At Cuny – York College, Malek Shami, Nazrul I. Khandaker, Ruslana Baker, Gurwinder Sahota, Toralv B. Munro, Stanley Schleifer

Publications and Research

Traditionally, a limited percentage of undergraduate geology students have the opportunity to explore the geology profession in private, non-private industry, city and federal agencies, while a relatively larger number of graduating students pursue higher education to ultimately find a career in academia, city and federal agencies. For the past three semesters, a pilot study that provided more exposure to the geology profession was conducted at the Earth and Physical Sciences Department of the City University of New York. This adaptive teaching approach designated 20% of each upper level geology gateway courses (Structural, Mineralogy, Petrology, Soil Mechanics, and Sedimentation) to the …


Using Geospatial Data To Predict The Locations Of Groundwater Discharge To Salmon-Bearing Streams, Alaska, Mary Gerlach Oct 2020

Using Geospatial Data To Predict The Locations Of Groundwater Discharge To Salmon-Bearing Streams, Alaska, Mary Gerlach

USF Tampa Graduate Theses and Dissertations

Identification and protection of groundwater resources are considerations of increasing interest as climate shifts but can be challenging to accomplish in remote areas. To that end, a series of GIS techniques and weight of evidence approach were applied to determine the feasibility of remotely identifying likely areas of ground discharge. Through the confluence of topographic analyses and a novel geologic dataset, these techniques were found to consistently identify areas characterized by either shallow subsurface or aquifer-fed groundwater discharge or evidence of ephemeral surficial water features. Two distinct GIS techniques to build spatial proxies of the effects of topography and geology …


Using Tidal Analysis To Examine Lake-Aquifer Connectivity On A Modern Carbonate Platform, Ronald A. Knoll Oct 2020

Using Tidal Analysis To Examine Lake-Aquifer Connectivity On A Modern Carbonate Platform, Ronald A. Knoll

USF Tampa Graduate Theses and Dissertations

Lake-aquifer connectivity on carbonate platforms is governed by basin morphology which is influenced by diagenetic and depositional processes. Both these processes cause aquifer permeability to vary significantly with scale of measurement (i.e., pore-scale, well-scale, and regional-scale). Because coastal aquifers are well-known to have tidally controlled water level fluctuations, inland lakes may be used to expand the areal measurement of permeability and establish a link between well-scale and regional scale connectivity in the aquifer. To evaluate the impact of lake basin morphology on aquifer connectivity, water level fluctuations were collected at high temporal resolution in the ocean and twenty-four surface water …


Distributed Overgrazing: A Key Cause Of Grassland Degradation In Inner Mongolia, Qian Zhang, Wenjun Li, Yina Xie, Changling Li, Yanbo Li Oct 2020

Distributed Overgrazing: A Key Cause Of Grassland Degradation In Inner Mongolia, Qian Zhang, Wenjun Li, Yina Xie, Changling Li, Yanbo Li

IGC Proceedings (1977-2023)

No abstract provided.


Design Of Leylus‐Chinensis Grassland Root‐Cutter, Yong You, Decheng Wang Oct 2020

Design Of Leylus‐Chinensis Grassland Root‐Cutter, Yong You, Decheng Wang

IGC Proceedings (1977-2023)

No abstract provided.


Study On Wind‐Sand Defending Mechanism Of Single Shrub, Tingting Yang, Xinhong Wu, Guozheng Yao, Peng Li Oct 2020

Study On Wind‐Sand Defending Mechanism Of Single Shrub, Tingting Yang, Xinhong Wu, Guozheng Yao, Peng Li

IGC Proceedings (1977-2023)

No abstract provided.


The Choice And Siting Of Natural Vegetation In Reclamation Of Disturbed Land, T. Weaver, K. Aho, S. Regele Oct 2020

The Choice And Siting Of Natural Vegetation In Reclamation Of Disturbed Land, T. Weaver, K. Aho, S. Regele

IGC Proceedings (1977-2023)

No abstract provided.


Lidar Reveals >150 Km Of New Holocene Ruptures And Faults In Northeast Basin-And-Range Province, N Utah And Se Idaho, Susanne U. Jänecke, Nathaniel R. Ellis, Robert Q. Oaks Jr., Carly M. Lee, James P. Evans Oct 2020

Lidar Reveals >150 Km Of New Holocene Ruptures And Faults In Northeast Basin-And-Range Province, N Utah And Se Idaho, Susanne U. Jänecke, Nathaniel R. Ellis, Robert Q. Oaks Jr., Carly M. Lee, James P. Evans

Geosciences Faculty Publications

Cache Valley is a N-trending graben in N-central Utah and SE Idaho. The East Cache fault zone (ECFZ) appears to be the master fault due to the high mountain in its footwall, its inversion of the Providence thrust fault, and the deep sedimentary basin in its hanging wall. However, trenching in 1990s showed more Holocene ruptures within the West Cache fault zone (WCFZ, 4) than ECFZ (1). We use LIDAR data to document post-Bonneville paleo-earthquakes along known and newly documented normal faults of the WCFZ. New faults with scarps occur throughout the ~105 km long and 5-10 km wide WCFZ. …


Soil Compaction By Slurry Injection And The Effect On Soil Quality, N. Van Eekeren, H. C. De Boer Oct 2020

Soil Compaction By Slurry Injection And The Effect On Soil Quality, N. Van Eekeren, H. C. De Boer

IGC Proceedings (1977-2023)

No abstract provided.