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Full-Text Articles in Physical Sciences and Mathematics

Examination On The Efficacy Of Noah-Multiparameterization (Noah-Mp) As A New Land Model In Earth Systems Modeling, Nicholas Rubel, Guo-Yue Niu, Ning Ma Oct 2016

Examination On The Efficacy Of Noah-Multiparameterization (Noah-Mp) As A New Land Model In Earth Systems Modeling, Nicholas Rubel, Guo-Yue Niu, Ning Ma

STAR Program Research Presentations

Along with measurements and observations, models (both physical and mathematical) are among the most important tools used by Earth scientists to make hypotheses, test hypotheses, and form predictions. These models are based upon information and theories already believed to be true. As newer and better information is discovered, the models can become more accurate and precise. Mathematical models, sometimes called numerical models, also rely on technology; as the technology used to make models becomes more advanced, more complex models can be made and used to test more variables at once. This report examines a new mathematical model called Noah-Multiparameterization (Noah-MP) …


Examination On The Efficacy Of Noah-Multiparameterization (Noah-Mp) As A New Land Model In Earth Systems Modeling, Nicholas Rubel, Guo-Yue Niu, Ning Ma Oct 2016

Examination On The Efficacy Of Noah-Multiparameterization (Noah-Mp) As A New Land Model In Earth Systems Modeling, Nicholas Rubel, Guo-Yue Niu, Ning Ma

STAR Program Research Presentations

Along with measurements and observations, models (both physical and mathematical) are among the most important tools used by Earth scientists to make hypotheses, test hypotheses, and form predictions. These models are based upon information and theories already believed to be true. As newer and better information is discovered, the models can become more accurate and precise. Mathematical models, sometimes called numerical models, also rely on technology; as the technology used to make models becomes more advanced, more complex models can be made and used to test more variables at once. This report examines a new mathematical model called Noah-Multiparameterization (Noah-MP) …


Citizen Science Sensor Development - Smap | Soil Moisture Active Passive, Hagop Hovhannesian Aug 2016

Citizen Science Sensor Development - Smap | Soil Moisture Active Passive, Hagop Hovhannesian

STAR Program Research Presentations

“Detailed monitoring of soil moisture provides a view of how our whole Earth system works.”

The Soil Moisture Active Passive (SMAP) satellite mission was launched in January 2015; its main purpose is to acquire global measurements of soil moisture. SMAP partnered with the GLOBE program (Global Learning and Observations to Benefit the Environment), which is an international program where students collect environmental variables in a scientifically methodical way. SMAP readings and maps have various uses in various fields, which include monitoring drought, predicting floods, assisting in crop productivity, and linking water, energy and carbon cycles. The goal of this project …


Analysis And Detection Of Hfo-1234ze, Alberni V. Ruiz, Ben R. Miller Aug 2016

Analysis And Detection Of Hfo-1234ze, Alberni V. Ruiz, Ben R. Miller

STAR Program Research Presentations

Alberni Ruiz

Abstract

Refrigerants have been one of the causes of ozone depletion and the buildup of greenhouse gases in past decades. When the international agreements the Montreal Protocol, which has the goal of eliminating ozone depleting compounds, and the Kyoto protocol which has the goal of eliminating greenhouse gas emissions, where implemented they paved the way to replace past and current refrigerants with alternate compounds that are less detrimental to the atmosphere. New compounds that where green-lit by the EPA for use as refrigerants in 2011 where HFO-1234ze and HFO-1234yf, both of these compounds have a very low Global …


Development And Curation Of The Sample Data Library For The Astrobiogeochemistry Laboratory, Meika R. Nwaomah, Lorenia Jimenez, Michael Tuite Aug 2016

Development And Curation Of The Sample Data Library For The Astrobiogeochemistry Laboratory, Meika R. Nwaomah, Lorenia Jimenez, Michael Tuite

STAR Program Research Presentations

In 2011, the National Science Foundation (NSF) initiated EarthCube, an integrated cyber infrastructure initiative, to tackle challenges within geoscience research. EarthCube’s goal is to improve public access and collaboration within the geoscience community. During the summer of 2015, the Astrobiogeochemistry Laboratory (abcLab) joined the collective efforts of EarthCube by developing the Sample Data Library (SDL) for the Jet Propulsion Laboratory (JPL). The main focus of the SDL concentrates on effectively curating the samples collected by researchers within the Planetary Chemistry and Astrobiology section at JPL. The goal of this summer internship was to assimilate field notes, images, and from data …


Quartz Crystal Preferred Orientation And Recrystallization Patterns From Naturally Deformed Rocks Under Constriction, Riley Quine Jun 2016

Quartz Crystal Preferred Orientation And Recrystallization Patterns From Naturally Deformed Rocks Under Constriction, Riley Quine

Materials Engineering

This study analyzes crystal preferred orientation (CPO) patterns within constrictional quartz-rich gneisses. Quartz deformation and CPO patterns are an area of interest because quartz is one of the most prevalent minerals in earth's crust. Understanding the typical way that quartz crystals reorient under different states of strain can provide geologists with an additional tool for understanding paleo-strain. Temperature and strain geometry are two dominant factors that control the orientation of quartz crystals within a rock. Temperature determines which slip planes are active and slip planes typically reorient so that they are perpendicular to maximum stress. Previous workers have suggested that …


Structure And Geochronology Of The White Fork Pluton, Southern Sierra Nevada, Ian Richard Mahaffey Jun 2016

Structure And Geochronology Of The White Fork Pluton, Southern Sierra Nevada, Ian Richard Mahaffey

Natural Resources Management and Environmental Sciences

The Sierra Nevada batholith represents an archetypal continental arc, although the style of deformation throughout the history of the arc is only poorly understood, in part due to the voluminous nature of Late Cretaceous magmatism that has overprinted earlier structures. The purpose of this study is to gain a better understanding of pre-Late Cretaceous deformation in the Sierra Nevada batholith through a structural and geochronological study of the Jurassic White Fork pluton. A Jurassic age for the White Fork pluton is indicated by its inclusion of numerous 148 Ma Independence dikes, and geochronology on the White Fork pluton is limited …


Timing Movement Of Water Through The Biosphere 2 Rainforest Using Deuterium As An Isotopic Tracer, Katie Almeda, Joost Van Haren, Till Volkmann Jan 2016

Timing Movement Of Water Through The Biosphere 2 Rainforest Using Deuterium As An Isotopic Tracer, Katie Almeda, Joost Van Haren, Till Volkmann

STAR Program Research Presentations

Rain forest ecosystems play an important role in global functions such as being home to half of the species of plants and animals on the planet, acting as a carbon sink, and moving water from the ground back into the atmosphere. In the Amazon, approximately 50 to 80% of moisture produced remains in the ecosystem’s water cycle. As a result of deforestation and rising global temperatures, less moisture can be moved back into the atmosphere. The objective of this study was to trace how water moves through a rain forest system in order to gain insight on how different species …