Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

University of Nebraska - Lincoln

Series

1999

Discipline
Keyword
Publication

Articles 361 - 372 of 372

Full-Text Articles in Physical Sciences and Mathematics

Resource News-Spring 1999 Jan 1999

Resource News-Spring 1999

Conservation and Survey Division

No abstract provided.

Go to article

2018 Nebraska Water Leaders Academy - Final Report, Mark E. Burbach Jan 1999

2018 Nebraska Water Leaders Academy - Final Report, Mark E. Burbach

Conservation and Survey Division

Nineteen participants completed the 2018 Water Leaders Academy bringing the total number of graduates to 120 since the inception of the program in 2011. Assessment of participants’ transformational leadership skills, champion of innovation skills, water knowledge and engagement, civic capacity, and entrepreneurial leadership behaviors showed a significant increase over the course of the year, from both participants’ and their raters’ perspectives. Feedback from participants was highly positive and constructive. Participant concerns were addressed, and only minor changes are planned for the 2019 Academy curriculum. Results of the program assessment indicate that the curriculum is meeting Academy objectives. Most importantly, Alumni …

Go to article

Lethal Sandslides From Eolian Dunes, David B. Loope, Joseph A. Mason, Lowell Dingus Jan 1999

Lethal Sandslides From Eolian Dunes, David B. Loope, Joseph A. Mason, Lowell Dingus

Department of Earth and Atmospheric Sciences: Faculty Publications

Fossil vertebrates entombed within the Upper Cretaceous Djadokhta Formation of southern Mongolia bear testimony to a heretofore unknown geologic phenomenon: mass wasting of eolian dunes during heavy rainstorms. Evaporation of shallow-penetrating rainwater led to progressive calcite accumulation in a thin layer of sand about 0.5 m below the surface of dune lee slopes. During rare heavy rainstorms, a perched water table developed at the top of calcitic zones. Positive pore water pressure led to translational slides and fast-moving sediment gravity flows that overwhelmed animals on the lee slopes of large dunes and in interdune areas.

Go to article

Monitoring The 1996 Drought Using The Standardized Precipitation Index, Michael J. Hayes, Mark D. Svoboda, Donald A. Wilhite, Olga V. Vanyarkho Jan 1999

Monitoring The 1996 Drought Using The Standardized Precipitation Index, Michael J. Hayes, Mark D. Svoboda, Donald A. Wilhite, Olga V. Vanyarkho

Drought Mitigation Center: Faculty Publications

Droughts are difficult to detect and monitor. Drought indices, most commonly the Palmer Drought Severity Index (PDSI), have been used with limited success as operational drought monitoring tools and triggers for policy responses. Recently, a new index, the Standardized Precipitation Index (SPI), was developed to improve drought detection and monitoring capabilities. The SPI has several characteristics that are an improvement over previous indices, including its simplicity and temporal flexibility, that allow its application for water resources on all timescales. In this article, the 1996 drought in the southern plains and southwestern United States is examined using the SPI. A series …

Go to article

Hamilton County Test Hole Logs, Perry B. Wigley Jan 1999

Hamilton County Test Hole Logs, Perry B. Wigley

Conservation and Survey Division

No abstract provided.

Go to article

Phelps County Test Hole Logs, S. E. Summerside Jan 1999

Phelps County Test Hole Logs, S. E. Summerside

Conservation and Survey Division

No abstract provided.

Go to article

Acres Irrigated In Nebraska - Past, Present, And Future, Bryce B. Pease Jan 1999

Acres Irrigated In Nebraska - Past, Present, And Future, Bryce B. Pease

Conservation and Survey Division

No abstract provided.

Go to article

Characterization And Improvement Of Eos Land Products Using Measurements At Ameriflux Grassland And Wheat Sites In The Arm/Cart Region: Research Annual Performance Report For Period March 1, 1999- February 29, 2000., E. A. Walter-Shea, S. B. Verma Jan 1999

Characterization And Improvement Of Eos Land Products Using Measurements At Ameriflux Grassland And Wheat Sites In The Arm/Cart Region: Research Annual Performance Report For Period March 1, 1999- February 29, 2000., E. A. Walter-Shea, S. B. Verma

School of Natural Resources: Documents and Reviews

No abstract provided.

Go to article

Hall County Test Hole Logs, Vincent H. Dreeszen Jan 1999

Hall County Test Hole Logs, Vincent H. Dreeszen

Conservation and Survey Division

No abstract provided.

Go to article

Resource Notes-Academic Year 1998-99 Jan 1999

Resource Notes-Academic Year 1998-99

Conservation and Survey Division

No abstract provided.

Go to article

Evaluation Of Special Sensor Microwave / Imager Sea-Ice Products, Kim Partington, Cheryl Bertoia Jan 1999

Evaluation Of Special Sensor Microwave / Imager Sea-Ice Products, Kim Partington, Cheryl Bertoia

United States Department of Commerce: Staff Publications

Existing SSM/I algorithms are imperfect at mapping total and partial ice concentrations. This paper reviews recent findings based on comparisons of sea-ice products against other satellite data and U.S. National Ice Center (NIC) ice charts.

Go to article

Reality And Theory In A Collision, Norman Derby, Robert Fuller Jan 1999

Reality And Theory In A Collision, Norman Derby, Robert Fuller

Robert G. Fuller Publications

Billiard-ball collisions are frequently cited in introductory physics textbooks, usually as examples of elastic collisions. Many articles describing such collisions have appeared in this journal and elsewhere, but comparisons between theoretical results and actual collisions are rare, and most of the theoretical analyses have simply assumed friction to be negligible during the collision time. Students trying to simulate billiard-ball collisions on a popular simulation program such as Interactive Physics® may encounter interesting collisions, such as ones in which the cue ball is thrown up into the air when the frictional coefficients are set at even modest levels. We decided …

Go to article

First Prev