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Articles 1981 - 2010 of 6113
Full-Text Articles in Entire DC Network
Modeling Radiation Belt Radial Diffusion In Ulf Wave Fields: 1. Quantifying Ulf Wave Power At Geosynchronous Orbit In Observations And In Global Mhd Model, Chia-Lin L. Huang, Harlan E. Spence, Howard J. Singer, W. Jeffrey Hughes
Modeling Radiation Belt Radial Diffusion In Ulf Wave Fields: 1. Quantifying Ulf Wave Power At Geosynchronous Orbit In Observations And In Global Mhd Model, Chia-Lin L. Huang, Harlan E. Spence, Howard J. Singer, W. Jeffrey Hughes
Physics & Astronomy
[1] To provide critical ULF wave field information for radial diffusion studies in the radiation belts, we quantify ULF wave power (f = 0.5–8.3 mHz) in GOES observations and magnetic field predictions from a global magnetospheric model. A statistical study of 9 years of GOES data reveals the wave local time distribution and power at geosynchronous orbit in field-aligned coordinates as functions of wave frequency, solar wind conditions (Vx, ΔPd and IMF Bz) and geomagnetic activity levels (Kp, Dst and AE). ULF wave power grows monotonically with increasing solar wind Vx, dynamic pressure variations ΔPd and geomagnetic indices in a …
Place Effects On Environmental Views, Lawrence C. Hamilton, Chris R. Colocousis, Cynthia M. Duncan
Place Effects On Environmental Views, Lawrence C. Hamilton, Chris R. Colocousis, Cynthia M. Duncan
Sociology
How people respond to questions involving the environment depends partly on individual characteristics. Characteristics such as age, gender, education, and ideology constitute the well-studied "social bases of environmental concern," which have been explained in terms of cohort effects or of cognitive and cultural factors related to social position. It seems likely that people's environmental views depend not only on personal characteristics but also on their social and physical environments. This hypothesis has been more difficult to test, however. Using data from surveys in 19 rural U.S. counties, we apply mixed-effects modeling to investigate simple place effects with respect to locally …
Seamless Online Distribution Of Amundsen Multibeam Data, James Muggah, Ian Church, Jonathan Beaudoin, John E. Hughes Clarke
Seamless Online Distribution Of Amundsen Multibeam Data, James Muggah, Ian Church, Jonathan Beaudoin, John E. Hughes Clarke
Center for Coastal and Ocean Mapping
Since 2003, all underway multibeam and sub-bottom data from the Canadian Coast Guard Ship Amundsen has been posted online within approximately six months of the end of each cruise. A custom interface allowing the user to access 15' latitude by 30' longitude mapsheets was implemented in 2006, allowing the user to download the bathymetric and backscatter data at 10 metre resolution. While this interface matched the underlying data management scheme implemented at the University of New Brunswick, the zoom and pan capability was at a fixed scale with limited contextual data. In the past few years, with the introduction of …
Application Of Jpeg 2000 Wavelet Compression To Multibeam Echosounder Mid-Water Acoustic Refectivity Measurements, Jonathan Beaudoin
Application Of Jpeg 2000 Wavelet Compression To Multibeam Echosounder Mid-Water Acoustic Refectivity Measurements, Jonathan Beaudoin
Center for Coastal and Ocean Mapping
No abstract provided.
Hydrographic Products/Services As A Fundamental Component Of The E-Navigation Concept Of Operation, Lee Alexander, Robert Ward
Hydrographic Products/Services As A Fundamental Component Of The E-Navigation Concept Of Operation, Lee Alexander, Robert Ward
Center for Coastal and Ocean Mapping
e-Navigation is a recent initiative aimed at moving traditional maritime navigation towards a connected digital environment. Defined by the International Maritime Organization (IMO) as “the harmonized collection, integration, exchange, presentation and analysis of maritime information onboard and ashore by electronic means to enhance birth-to-birth navigation and related services, for safety and security at sea and protection of the marine environment”, e-Navigation is not a new system of equipment but more an operational concept. Three significant outcomes are envisioned: 1) Shipboard navigation systems will benefit from the integration of own ship sensors, supporting information, standard user interface, and a comprehensive system …
New Approaches For Evaluating Lidar-Derived Shoreline, Christopher Parrish, Stephen A. White, Brian R. Calder, Shachak Pe'eri, Yuri Rzhanov
New Approaches For Evaluating Lidar-Derived Shoreline, Christopher Parrish, Stephen A. White, Brian R. Calder, Shachak Pe'eri, Yuri Rzhanov
Center for Coastal and Ocean Mapping
This study presents and compares two new methods of assessing the uncertainty of lidar-derived National Shoreline mapped by NOAA’s National Geodetic Survey: an empirical (ground-based) approach and a stochastic (Monte Carlo) approach. OCIS codes: (280.3640) Lidar; (120.2830) Height measurements; (000.4430) Numerical approximation and analysis
Granite State College 2010-2011 Catalog, Granite State College
Granite State College 2010-2011 Catalog, Granite State College
Granite State College Catalogs
No abstract provided.
Modeling The Effect Of Oceanic Internal Waves On The Accuracy Of Multibeam Echosounders, Travis Hamilton, Jonathan Beaudoin
Modeling The Effect Of Oceanic Internal Waves On The Accuracy Of Multibeam Echosounders, Travis Hamilton, Jonathan Beaudoin
Center for Coastal and Ocean Mapping
When ray bending corrections are applied to multibeam echosounder (MBES) data, it is assumed that the varying layers of sound speed lie along horizontally stratified planes. In many areas internal waves occur at the interface where the water’s density changes abruptly (a pycnocline), this density gradient is often associated with a strong gradient in sound speed (a velocline). The internal wave introduces uncertainty into the echo soundings through two mechanisms: (1) tilting of the velocline, and (2) vertical oscillation of the velocline’s depth. A model has been constructed in order to examine how these effects degrade the accuracy of MBES …
4d Multimodal Visualization And Analysis Of Seafloor Vents And Plumes, Maurice Doucet, Mark Paton, James V. Gardner, Jens Greinert
4d Multimodal Visualization And Analysis Of Seafloor Vents And Plumes, Maurice Doucet, Mark Paton, James V. Gardner, Jens Greinert
Center for Coastal and Ocean Mapping
No abstract provided.
Simulating An Airborne Lidar Bathymetry (Alb) System, Shachak Pe'eri, Amaresh M. Kumar, Brian R. Calder
Simulating An Airborne Lidar Bathymetry (Alb) System, Shachak Pe'eri, Amaresh M. Kumar, Brian R. Calder
Center for Coastal and Ocean Mapping
This study’s focus is on the horizontal and vertical uncertainties associated with ALB measurements due to scattering through the water column. A lidar simulator was constructed and we present its design and preliminary results.
Convective Distribution Of Tropospheric Ozone And Tracers In The Central American Itcz Region: Evidence From Observations During Tc4, M A. Avery, Cynthia Twohy, David Mccabe, J Joiner, Kurt Severance, E L. Atlas, D R. Blake, T P. Bui, John D. Crounse, Jack E. Dibb, Glenn Diskin, Paul Lawson, Matthew Mcgill, David Rogers, G W. Sachse, Eric Scheuer, A M. Thompson, Charles Trepte, Paul Wennberg, Jerald Ziemke
Convective Distribution Of Tropospheric Ozone And Tracers In The Central American Itcz Region: Evidence From Observations During Tc4, M A. Avery, Cynthia Twohy, David Mccabe, J Joiner, Kurt Severance, E L. Atlas, D R. Blake, T P. Bui, John D. Crounse, Jack E. Dibb, Glenn Diskin, Paul Lawson, Matthew Mcgill, David Rogers, G W. Sachse, Eric Scheuer, A M. Thompson, Charles Trepte, Paul Wennberg, Jerald Ziemke
Earth Sciences
During the Tropical Composition, Clouds and Climate Coupling (TC4) experiment that occurred in July and August of 2007, extensive sampling of active convection in the ITCZ region near Central America was performed from multiple aircraft and satellite sensors. As part of a sampling strategy designed to study cloud processes, the NASA ER‐2, WB‐57 and DC‐8 flew in stacked “racetrack patterns” in convective cells. On July 24, 2007, the ER‐2 and DC‐8 probed an actively developing storm and the DC‐8 was hit by lightning. Case studies of this flight, and of convective outflow on August 5, 2007 reveal a significant anti‐correlation …
Evidence Of Nitric Acid Uptake In Warm Cirrus Anvil Clouds During The Nasa Tc4 Campaign, Eric Scheuer, Jack E. Dibb, Cynthia Twohy, David Rogers, Andrew J. Heymsfield, Aaron Bansemer
Evidence Of Nitric Acid Uptake In Warm Cirrus Anvil Clouds During The Nasa Tc4 Campaign, Eric Scheuer, Jack E. Dibb, Cynthia Twohy, David Rogers, Andrew J. Heymsfield, Aaron Bansemer
Earth Sciences
Uptake of HNO3 onto cirrus ice may play an important role in tropospheric NOx cycling. Discrepancies between modeled and in situ measurements of gas-phase HNO3 in the troposphere suggest that redistribution and removal mechanisms by cirrus ice have been poorly constrained. Limited in situ measurements have provided somewhat differing results and are not fully compatible with theory developed from laboratory studies. We present new airborne measurements of HNO3 in cirrus clouds from anvil outflow made during the Tropical Composition, Cloud, and Climate Coupling Experiment (TC4). Upper tropospheric (>9 km) measurements made during three flights while repeatedly traversing the same …
Unh Launches Milestone Integrated Applied Mathematics Program, Debra Williams
Unh Launches Milestone Integrated Applied Mathematics Program, Debra Williams
Media Relations
No abstract provided.
The Role Of Magnetic Handedness In Magnetic Cloud Propagation, U. Taubenschuss, Nikolai V. Erkaev, Helfried K. Biernat, Charlie J. Farrugia, C. Mostl, U. V. Amerstorfer
The Role Of Magnetic Handedness In Magnetic Cloud Propagation, U. Taubenschuss, Nikolai V. Erkaev, Helfried K. Biernat, Charlie J. Farrugia, C. Mostl, U. V. Amerstorfer
Coronal Mass Ejection Research Group
We investigate the propagation of magnetic clouds (MCs) through the inner heliosphere using 2.5-D ideal magnetohydrodynamic (MHD) simulations. A numerical solution is obtained on a spherical grid, either in a meridional plane or in an equatorial plane, by using a Roe-type approximate Riemann solver in the frame of a finite volume approach. The structured background solar wind is simulated for a solar activity minimum phase. In the frame of MC propagation, special emphasis is placed on the role of the initial magnetic handedness of the MC's force-free magnetic field because this parameter strongly influences the efficiency of magnetic reconnection between …
Galactic Cosmic Ray Radiation Hazard In The Unusual Extended Solar Minimum Between Solar Cycles 23 And 24, Nathan A. Schwadron, A. J. Boyd, K. Kozarev, M. Golightly, Harlan E. Spence, L. W. Townsend, M. Owens
Galactic Cosmic Ray Radiation Hazard In The Unusual Extended Solar Minimum Between Solar Cycles 23 And 24, Nathan A. Schwadron, A. J. Boyd, K. Kozarev, M. Golightly, Harlan E. Spence, L. W. Townsend, M. Owens
Physics & Astronomy
[1] Galactic cosmic rays (GCRs) are extremely difficult to shield against and pose one of the most severe long-term hazards for human exploration of space. The recent solar minimum between solar cycles 23 and 24 shows a prolonged period of reduced solar activity and low interplanetary magnetic field strengths. As a result, the modulation of GCRs is very weak, and the fluxes of GCRs are near their highest levels in the last 25 years in the fall of 2009. Here we explore the dose rates of GCRs in the current prolonged solar minimum and make predictions for the Lunar Reconnaissance …
New Standards For Providing Meteorological And Hydrographic Information Via Ais Application-Specific Messages, Lee Alexander, Schwehr Kurt
New Standards For Providing Meteorological And Hydrographic Information Via Ais Application-Specific Messages, Lee Alexander, Schwehr Kurt
Center for Coastal and Ocean Mapping
AIS Application-specific messages transmitted in binary format will be increasingly used to digitally communicate maritime safety/security information between participating vessels and shore stations. This includes time-sensitive meteorological and hydrographic information that is critical for safe vessel transits and efficient ports/waterways management. IMO recently completed a new Safety-of-Navigation Circular (SN/Circ.) that includes a number of meteorologi-cal and hydrographic message applications and data parameters. In conjunction with the development of a new SN/Circ., IMO will establish an International Application (IA) Register for AIS Application-Specific Messages. IALA plans to establish a similar register for regional appli-cations. While there are no specific standards for …
The Educational Pipeline To Law School—Too Broken And Too Narrow To Provide Diversity, Sarah E. Redfield
The Educational Pipeline To Law School—Too Broken And Too Narrow To Provide Diversity, Sarah E. Redfield
The University of New Hampshire Law Review
[Excerpt] “The legal profession remains markedly out of sync with the changing demographics of the country, where the population is projected to be over 50 percent minority by 2050. Against this trend, law school enrollment hovers around 20 percent minority, including over 7 percent Asian students. Enrollment of some minority groups shows a decline rather than improvement. These numbers will remain static or continue to decline if the profession does not pay far more serious attention to the current leaks and gaps along the educational pipeline, far before students seek admission at the law school gates.”
Impact Of Mineral Dust On Nitrate, Sulfate, And Ozone In Transpacific Asian Pollution Plumes, T D. Fairlie, D J. Jacob, Jack E. Dibb, B Alexander, M A. Avery, Aaron Van Donkelaar, L Zhang
Impact Of Mineral Dust On Nitrate, Sulfate, And Ozone In Transpacific Asian Pollution Plumes, T D. Fairlie, D J. Jacob, Jack E. Dibb, B Alexander, M A. Avery, Aaron Van Donkelaar, L Zhang
Earth Sciences
We use a 3-D global chemical transport model (GEOS-Chem) to interpret aircraft observations of nitrate and sulfate partitioning in transpacific dust plumes during the INTEX-B campaign of April–May 2006. The model includes explicit transport of size-resolved mineral dust and its alkalinity, nitrate, and sulfate content. The observations show that particulate nitrate is primarily associated with dust, sulfate is primarily associated with ammonium, and Asian dust remains alkaline across the Pacific. This can be reproduced in the model by using a reactive uptake coefficient for HNO3 on dust (γ(HNO3) ~10−3) much lower than commonly assumed in …
Past And Projected Future Changes In Snowpack And Soil Frost At The Hubbard Brook Experimental Forest, New Hampshire, Usa, John L. Cambell, Scott V. Ollinger, Gerald N. Flerchinger, Haley Wicklein, Katharine Hayhoe, Amey S. Bailey
Past And Projected Future Changes In Snowpack And Soil Frost At The Hubbard Brook Experimental Forest, New Hampshire, Usa, John L. Cambell, Scott V. Ollinger, Gerald N. Flerchinger, Haley Wicklein, Katharine Hayhoe, Amey S. Bailey
Faculty Publications
Long‐term data from the Hubbard Brook Experimental Forest in New Hampshire show that air temperature has increased by about 1 °C over the last half century. The warmer climate has caused significant declines in snow depth, snow water equivalent and snow cover duration. Paradoxically, it has been suggested that warmer air temperatures may result in colder soils and more soil frost, as warming leads to a reduction in snow cover insulating soils during winter. Hubbard Brook has one of the longest records of direct field measurements of soil frost in the United States. Historical records show no long‐term trends in …
Economists Unveil New Way To View Financial Markets, Lori Wright
Economists Unveil New Way To View Financial Markets, Lori Wright
Media Relations
No abstract provided.
Unh Junior Receives Prestigious Goldwater Scholarship, Beth Potier
Unh Junior Receives Prestigious Goldwater Scholarship, Beth Potier
Media Relations
No abstract provided.
The New Hampshire, Vol. 99 [100], No. 41 (April 2, 2010), The New Hampshire
The New Hampshire, Vol. 99 [100], No. 41 (April 2, 2010), The New Hampshire
The New Hampshire Print Edition
An independent student produced newspaper from the University of New Hampshire. This volume was printed as 99, but it is the 100th volume in the series. This was corrected in pencil.
Berne-Copenhague-Madrid-París-Santiago: Interpolaciones Elativistas, Variaciones Cuánticas E Impactos Cósmicos En Altazor (1919-1931), Scott Weintraub
Berne-Copenhague-Madrid-París-Santiago: Interpolaciones Elativistas, Variaciones Cuánticas E Impactos Cósmicos En Altazor (1919-1931), Scott Weintraub
Languages, Literatures & Cultures
En este artículo para el número especial de Revista Chilena de Literatura que conmemora el bicentenario chileno, exploro múltiples conexiones literarias, científicas, y geográficas entre el poema Altazor de Vicente Huidobro y los contextos filosófico-científicos globales de las primeras décadas del siglo XX. Evalúo el impacto de una serie de caídas lingüísticas, críticas, alegóricas y gravitacionales en la trayectoria del “viaje en paracaídas” de Altazor, para volver a considerar, desde varias perspectivas críticas que tratan la “ilegible” y ambigua conclusión del poema, el impacto de un evento lingüístico en el campo de gravedad del poema. De esta manera, el artículo …
Education On Three Continents, Procheta Mallik
Education On Three Continents, Procheta Mallik
Inquiry Journal 2010
No abstract provided.
Unh: The Magazine Of The University Of New Hampshire, Spring 2010, Unh Magazine
Unh: The Magazine Of The University Of New Hampshire, Spring 2010, Unh Magazine
UNH Magazine
Archived version of web content originally found at https://unhmagazine.unh.edu/pastissues.html
“Taking Stocc”: Tracking Environmental And Financial Footprints Associated With Municipal Energy Use, Corey Johnson
“Taking Stocc”: Tracking Environmental And Financial Footprints Associated With Municipal Energy Use, Corey Johnson
Inquiry Journal 2010
No abstract provided.
Sea State Bias In Altimeter Sea Level Estimates Determined By Combining Wave Model And Satellite Data, N. Tran, Douglas C. Vandemark, S. Labroue, Hui Feng, Bertrand Chapron, H. L. Tolman, J. Lambin, N. Picot
Sea State Bias In Altimeter Sea Level Estimates Determined By Combining Wave Model And Satellite Data, N. Tran, Douglas C. Vandemark, S. Labroue, Hui Feng, Bertrand Chapron, H. L. Tolman, J. Lambin, N. Picot
Ocean Process Analysis Laboratory
This study documents a method for increasing the precision of satellite-derived sea level measurements. Results are achieved using an enhanced three-dimensional (3-D) sea state bias (SSB) correction model derived from both Jason-1 altimeter ocean observations (i.e., sea state and wind) and estimates of mean wave period from a numerical ocean wave model, NOAA’s WAVEWATCH III. A multiyear evaluation of Jason-1 data indicates sea surface height variance reduction of 1.26 (±0.2) cm2 in comparison to the commonly applied two-parameter SSB model. The improvement is similar for two separate variance reduction metrics and for separate annual data sets spanning 2002–2004. Spatial evaluation …
Parameterizations Of The Linear Energy Transfer Spectrum For The Crater Instrument During The Lro Mission, L. W. Townsend, Y. M. Charara, N. Delauder, M. Pourarsalan, J. A. Anderson, C. M. Fisher, Harlan E. Spence, Nathan A. Schwadron, M. J. Golightly, F. A. Cucinotta
Parameterizations Of The Linear Energy Transfer Spectrum For The Crater Instrument During The Lro Mission, L. W. Townsend, Y. M. Charara, N. Delauder, M. Pourarsalan, J. A. Anderson, C. M. Fisher, Harlan E. Spence, Nathan A. Schwadron, M. J. Golightly, F. A. Cucinotta
Physics & Astronomy
[1] The Cosmic Ray Telescope for the Effects of Radiation (CRaTER) instrument was launched as part of the Lunar Reconnaissance Orbiter (LRO) spacecraft in June 2009. Its purpose is to measure the linear energy transfer (LET) spectrum in lunar orbit as an aid in determining risks to human crews on future lunar missions. Part of the preparations for the mission involved estimating the LET spectrum for the anticipated environment that the instrument is likely to see during the 1 year operational phase of the LRO mission. Detailed estimates of LET spectra in the six silicon detectors and two tissue equivalent …
Further Analysis Of A Cooper Pair Insulator, Shawna M. Hollen, H Q. Nguyen, M D. Stewart Jr, J Shainline, Aijun Jin, J M. Valles Jr.
Further Analysis Of A Cooper Pair Insulator, Shawna M. Hollen, H Q. Nguyen, M D. Stewart Jr, J Shainline, Aijun Jin, J M. Valles Jr.
Physics & Astronomy
No abstract provided.
A Regional Scale Modeling Analysis Of Aerosol And Trace Gas Distributions Over The Eastern Pacific During The Intex-B Field Campaign, B Adhikary, Gregory R. Carmichael, S Kulkarni, C Wei, Y Tang, A D'Allura, M Mena-Carrasco, David G. Streets, Q Zhang, R B. Pierce, J Al-Saadi, L K. Emmons, G G. Pfister, M A. Avery, J D. Barrick, D R. Blake, William H. Brune, Robert C. Cohen, Jack E. Dibb, A Fried, B J. Heikes, L Gregory Huey, D W. O'Sullivan, G W. Sachse, R E. Shetter, H B. Singh, T L. Campos, C A. Cantrell, F Flocke, E J. Dunlea, Jose L. Jimenez, Andrew Weinheimer, John D. Crounse, Paul Wennberg, James J. Schauer, E A. Stone, D A. Jaffe, D R. Reidmiller
A Regional Scale Modeling Analysis Of Aerosol And Trace Gas Distributions Over The Eastern Pacific During The Intex-B Field Campaign, B Adhikary, Gregory R. Carmichael, S Kulkarni, C Wei, Y Tang, A D'Allura, M Mena-Carrasco, David G. Streets, Q Zhang, R B. Pierce, J Al-Saadi, L K. Emmons, G G. Pfister, M A. Avery, J D. Barrick, D R. Blake, William H. Brune, Robert C. Cohen, Jack E. Dibb, A Fried, B J. Heikes, L Gregory Huey, D W. O'Sullivan, G W. Sachse, R E. Shetter, H B. Singh, T L. Campos, C A. Cantrell, F Flocke, E J. Dunlea, Jose L. Jimenez, Andrew Weinheimer, John D. Crounse, Paul Wennberg, James J. Schauer, E A. Stone, D A. Jaffe, D R. Reidmiller
Earth Sciences
The Sulfur Transport and dEposition Model (STEM) is applied to the analysis of observations obtained during the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B), conducted over the eastern Pacific Ocean during spring 2006. Predicted trace gas and aerosol distributions over the Pacific are presented and discussed in terms of transport and source region contributions. Trace species distributions show a strong west (high) to east (low) gradient, with the bulk of the pollutant transport over the central Pacific occurring between ∼20° N and 50° N in the 2-6 km altitude range. These distributions are evaluated in the eastern Pacific by comparison with …