| A Fuel Consumption Algorithm for Unmanned Aircraft Systems |
May-2009 |
39 pages |
| Authors:
Terry Jameson; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
 | The Army Research Laboratory, Battlefield Environment Division has been developing an Aviation Weather Routing Tool (AWRT) to address the issue of weather impacts upon various Unmanned Aircraft System (UAS) missions. The AWRT depicts regions of adverse weather impacts and then searches for alternate routes that minimize those impacts. A related factor that has yet to be included in AWRT involves UAS fuel consumption. Fuel consumption rates, remaining fuel quantity, and ... |
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| Characterizing the Turbulent Wind Flow Near a Wind Barrier Using a Data Set Collected with an Array of Sonic Anemometers |
May-2009 |
28 pages |
| Authors:
David Quintis; Sean D'Arcy; Robert Brice; David Tofsted; Jimmy Yarbrough; Yansen Wang; Scott Elliott; Thomas Truong; Michael Davalos; ARMY RESEARCH LAB ADELPHI MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE
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| An array of 10 sonic anemometers was used to observe the mean wind and turbulence near an artificial wind barrier at the High Speed Test Track facility on Holloman Air Force Base, NM. In order to test the effectiveness of such barriers in reducing cross-track winds, a prototype barrier was constructed using a polyester screen material rated as providing 30% porosity. The barrier dimensions were 100 m in length and ... |
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| Passive Imaging System for Measuring Atmospheric Scattering and CFLOS |
30-Apr-2009 |
7 pages |
| Authors:
Janet E Shields; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
|
| This quarterly report describes the work done for the Passive Imaging System for Measuring Atmospheric Scattering and CFLOS, under ONR Contract N00014-07-1-1060, between 1 February 2009 and 30 April 2009. |
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| Evaluation of a High Resolution Wind Model Over a Complex Terrain Surface |
Apr-2009 |
45 pages |
| Authors:
Sam S Chang; Dennis M Garvey; chatt C Williamson; Giap Huynh; ARMY RESEARCH LAB ADELPHI MD
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| A complete and comprehensive description of the high resolution wind (HRW) model is presented. The HRW model has been in development at the U.S. Army Research Laboratory, formerly U.S. Army Atmospheric Sciences Laboratory, since 1978. This model is a two-dimensional, diagnostic atmospheric surface-layer wind model with a horizontal grid spacing of the order of 100 m over a domain of about 5 by 5 km. It uses Gauss? principle of ... |
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| Land Vehicle Tire Qualification |
25-Mar-2009 |
39 pages |
| Authors:
Richard Vinkovich; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Briefing discusses the qualifications for the Land Vehicle Tires for Tire Privatization Initiative (TPI) contract. The Army has an interest in establishing an addition tire source for their land vehicle systems. |
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| Aerosol Impacts on Cirrus Clouds and High-Power Laser Transmission: A Combined Satellite Observation and Modeling Approach |
22-Mar-2009 |
4 pages |
| Authors:
Kuo N Liou; CALIFORNIA UNIV LOS ANGELES
|
| The AF anticipates fielding the ABL in the near future and needs to account for all the atmospheric conditions, such as cloud crystals, which would impede its successful operation. The objective of this additional work basic research effort is to provide additional characterization of the optical properties of cirrus clouds (particularly the ice crystals which form within these clouds at night) together with an improved prediction of the deleterious reflections ... |
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| Global Climate Change - U.S. Economic and National Security Opportunity |
20-Mar-2009 |
36 pages |
| Authors:
Patricia M Anslow; ARMY WAR COLL CARLISLE BARRACKS PA
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| The most recent findings of the Intergovernmental Panel on Climate Change (IPCC) state that the current trajectory of greenhouse gas (GHG) emissions will result in significant changes to the world climate and serious implications for the geopolitical landscape. These implications create both challenges and opportunities for the United States as they balance national security and economic interests. The effects of climate change could act as a threat multiplier in regions ... |
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| Radar Observations of Turbulence Using MST and FMCW Radar (BRIEFING CHARTS) |
09-Mar-2009 |
20 pages |
| Authors:
Frank D Eaton; Gregory D Nastrom; NASTROM CONSULTING LLC SAINT CLOUD MN
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| Radar observation of turbulence using MST and FMCW radar. |
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| A Verification of the COAMPS-TC Model Predictions of Typhoon Nuri (2008) |
01-Mar-2009 |
98 pages |
| Authors:
Jennifer M Hensley; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The objective of this thesis is to examine the predictions of the COAMPS-TC model for Typhoon Nuri during the THORPEX Pacific Asian Regional Campaign (T-PARC) and the Tropical Cyclone Structure 2008 (TCS-08) experiment that occurred in August through October 2008 in the western North Pacific. This case study on Typhoon Nuri examines the dynamic and thermodynamic structure changes of this tropical cyclone, including the intensity, track, radar reflectivity, and azimuthally-averaged ... |
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| Potential Vorticity Analysis of Low Level Thunderstorm Dynamics in an Idealized Supercell Simulation |
01-Mar-2009 |
65 pages |
| Authors:
Robert T Davenport; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Potential vorticity thinking has been used to infer the balanced dynamics of predominately synoptic-scale weather features. This is accomplished through the use of the invertibility principle in which the wind and mass fields can be retrieved from the three-dimensional distribution of potential vorticity (PV). The most common use of PV thinking has been applied to various forms of synoptic-scale cyclogenesis and the sensitivity of certain weather features had on the ... |
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| Using the Advanced Research Version of the Weather Research and Forecast Model in Support of ScanEagle Unmanned Aircraft System Test Flights |
Mar-2009 |
42 pages |
| Authors:
Robert Flanigan; Jeffrey E Passner; Robert E Jr; Dumais; Stephen Kirby; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
| The U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) supported unmanned aircraft flights in a specified airspace domain at Yuma Proving Ground (YPG) in November and December 2007. The Battlefield Environment Division of the Computational and Information Sciences Directorate (CISD), Army Research Laboratory (ARL), was asked to provide real-time meteorological modeling support and weather products such as low-level wind and turbulence forecasts at YPG to help determine areas and ... |
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| Z-M in Lightning Forecasting |
Mar-2009 |
61 pages |
| Authors:
Alexia J Machina; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Frozen hydrometeors are required for a storm to produce lightning. Previous research has made strong correlations between ice mass and lightning flash rate and lightning flash density. This study attempted to correlate ice mass to lightning potential Operational interest is centered at Cape Canaveral Air Force Station/Kennedy Space Center where accurate weather forecasting is vital to mission requirements, resource protection, and personnel safety. Four pulse storms were chosen for the ... |
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| Diurnal Sea Breeze-Driven Cross-Shore Exchange on the Inner Shelf in Central Monterey Bay |
Mar-2009 |
59 pages |
| Authors:
John E Hendrickson; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Cross-shore exchange on the inner shelf has important impacts on the ecosystem, transporting heat, nutrients, pollutants and phytoplankton between the midshelf and surf zone. The effects of a strong (cross-shore wind stress, Tsx 0.05Pa) diurnal (7-25 hrs) sea breeze on cross-shore exchange at Marina, Monterey Bay, California is investigated using two years of continuous winds, waves, and ocean velocities. Surface wind stress has spectral peaks at 1, 2, and 3 ... |
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| A Computational Tool for Evaluating THz Imaging Performance in Brownout Conditions at Land Sites Throughout the World |
Mar-2009 |
65 pages |
| Authors:
Seth L Marek; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| This study quantifies terahertz (THz) or sub-millimeter imaging performance during simulated rotary-wing brownout or whiteout environments based on geographic location and recent/current atmospheric weather conditions. The atmospheric conditions are defined through the Air Force Institute of Technology Center for Directed Energy (AFIT/CDE) Laser Environmental Effects Definition and Reference or LEEDR model. This model enables the creation of vertical profiles of temperature, pressure, water vapor content, optical turbulence, and atmospheric particulates ... |
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| The Use of Conditional and Potential Instability Axes for Severe Weather Forecasting |
Mar-2009 |
115 pages |
| Authors:
Douglas A Oltmer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| In this thesis, we used an innovative approach to severe weather forecasting using traditional forecast parameters. The maximum theta-e (potential instability) in the lowest 300 mb and the deep-layer lapse rate (conditional instability) fields are two commonly used forecast parameters for severe weather forecasting, and the ridges of these fields, or more specifically, the ridge intersections, were hypothesized to indicate regions for enhanced severe convection. In addition, the sharpness of ... |
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| A Statistical-Dynamical Approach to Intraseasonal Prediction of Tropical Cyclogenesis in the Western North Pacific |
Mar-2009 |
129 pages |
| Authors:
Bryan D Mundhenk; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| We have developed a combined statistical-dynamical prediction scheme to predict the probability of tropical cyclone (TC) formation at daily, 2.5 degree horizontal resolution across the western North Pacific at intraseasonal lead times. Through examination of previous research and our own analysis, we chose five variables to represent the favorability of the climate system to support tropical cyclogenesis. These so-called large-scale environmental factors (LSEFs) include: low-level relative vorticity, sea surface temperature, ... |
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| Operations-Focused Optimized Theater Weather Sensing Strategies Using Preemptive Binary Integer Programming |
Mar-2009 |
130 pages |
| Authors:
Andrew J Geyer; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Throughout history, successful military leaders have recognized that weather conditions on the battlefield can play a significant role in determining the victor. For this reason, the United States maintains and equips several different types of military units that are tasked to provide dedicated weather support to operational commanders. These units use a variety of types of sensors with differing capabilities to collect current weather conditions on the battlefield. In support ... |
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| Cost Forecasting Models for the Air Force Flying Hour Program |
Mar-2009 |
104 pages |
| Authors:
Tyler J Hess; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The fiscally constrained environment in which the Air Force executes its mission places great emphasis on accurate cost estimates for planning and budgeting purposes. Inaccurate estimates result in budget risks and undermine the ability of Air Force leadership to allocate resources efficiently. This thesis evaluates the current method used by the Air Force and introduces new methods to forecast future Flying Hour Program costs. The findings suggest the current forecasting ... |
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| Passive Imaging System for Measuring Atmospheric Scattering and CFLOS |
23-Feb-2009 |
5 pages |
| Authors:
Janet E Shields; SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CA MARINE PHYSICAL LAB
|
| This quarterly report describes the work done for the Passive Imaging System for Measuring Atmospheric Scattering and CFLOS, under ONR Contract N00014-07-1-1060, between 1 November 2008 and 31 January 2009. |
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| F-35 Lightning II Joint Strike Fighter (JSF) Program: Background, Status, and Issues |
17-Feb-2009 |
26 pages |
| Authors:
Christopher Bolkcom; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| The Defense Department's F-35 Lightning II Joint Strike Fighter (JSF) is one of three aircraft modernization programs in tactical aviation, the others being the Air Force F-22A fighter and the Navy F/A-18E/F fighter/attack plane. In November 1996, the Defense Department selected two major aerospace companies, Boeing and Lockheed Martin, to demonstrate competing designs for the JSF, a joint-service and multi-role fighter/attack plane. Lockheed Martin won this competition and was selected ... |
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| Description and Evaluation of GDEM-V 3.0 |
06-Feb-2009 |
27 pages |
| Authors:
Michael R Carnes; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| The GDEM (Generalized Digital Environment Model) has served as the U.S. Navy's global gridded ocean temperature and salinity climatology since its development began in 1975. This memorandum introduces a new version of this climatology, named GDEM-V 3.0, and discusses the techniques used in its construction. Several comparisons are shown between version 3.0 and the previous version (2.6) of GDEM to demonstrate several significant improvements. The largest change in methodology was ... |
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| Cold Regions Environmental Considerations |
03-Feb-2009 |
21 pages |
| Authors:
ARMY COLD REGIONS TEST CENTER FORT GREELY AK
|
| This is an overview TOP and is organized to provide background information on the cold regions environment. In this Test Operations Procedure (TOP) an over view of the location and characteristics of the cold regions are presented along with the effects of cold weather on human physiology and military materiel. This information should be used in preparing for and understanding the need for testing in a cold environment. |
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| Eddy-Mean Flow Interactions in Western Boundary Current Jets |
Feb-2009 |
267 pages |
| Authors:
Stephanie N Waterman; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
|
| This thesis examines eddy-mean flow interactions in western boundary current jets via theoretical studies of eddy-mean flow interactions in idealized configurations and an observational analysis to characterize eddy-mean flow interactions in the Kuroshio Extension. Theoretical studies are made of the mechanism by which eddies drive recirculation gyres through nonlinear rectification, and the role that eddies play in the downstream evolution of a baroclinic jet subject to mixed instabilities. The observational ... |
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| Tropical Cyclones within the Sedimentary Record: Analyzing Overwash Deposition from Event to Millennial Timescales |
Feb-2009 |
109 pages |
| Authors:
Jonathan D Woodruff; MASSACHUSETTS INST OF TECH CAMBRIDGE JOINT PROGRAM IN APPLIED OCEAN SCIENCE AND ENGINEERING
|
| Tropical cyclone activity over the last 5000 years is investigated using overwash sediments from coastal lagoons on the islands of Vieques, Puerto Rico and Koshikijima, Japan. A simple sediment transport model can reproduce the landward fining deposits observed at Vieques, and reveals that although the record exhibits centennial-tomillennial changes in hurricane overwash frequency, the magnitude of these flooding events has remained relatively constant. Stochastic simulations of hurricane overwash show that ... |
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| Evolution and Energization of Energetic Electrons in the Inner Magnetosphere |
15-Jan-2009 |
33 pages |
| Authors:
Joseph F Fennell; James L Roeder; AEROSPACE CORP EL SEGUNDO CA
|
| A review is presented of what we know about the evolution and energization of energetic electrons in the inner magneto- sphere. We emphasize what we have learned since the review by Friedel et al. (2002) with the primary result being a greater focus on local acceleration processes and significant new evidence that points to processes that are acting in the region between GPS and geosynchronous altitudes. We use as an ... |
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| TWAVE: A Modeling System for Flooding and Inundation of Islands by Tropical Storms |
Jan-2009 |
90 pages |
| Authors:
Zeki Demirbilek; Jane M Smith; Alejandro Sanchez; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
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| This report, the first of a series, describes the coastal modeling package TWAVE (Typhoon and WAVE) developed under the Surge and Wave Island Modeling Studies (SWIMS) project capable of modeling tropical cyclone winds, waves, storm surge, and coastal inundation. The TWAVE flood and inundation package is a practice-oriented engineering modeling tool. The first version of TWAVE is described in this report and will be updated based on user feedback in ... |
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| High-Resolution Numerical Atmospheric and Ocean Simulations of Typhoon Maemi (September 2003) |
Jan-2009 |
7 pages |
| Authors:
Travis A Smith; T Campbell; R Allard; J Dykes; R J Small; S Riedlinger; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| High-resolution numerical simulations of the Korean Straits and East Sea utilizing the Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS), the Navy Coastal Ocean Model (NCOM), and the SWAN wave model are conducted to examine the ocean and atmosphere model skill and response to Typhoon Maemi (September 2003). Due to the rarity of an intense tropical cyclone making landfall on the Korean Peninsula and traversing through the East China Sea, this study ... |
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| Decision Modeling for Smart Climatology |
30-Nov-2008 |
62 pages |
| Authors:
Eva Regnier; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEFENSE RESOURCES MANAGEMENT INST
|
| The purpose of smart climatology is to provide information that would be useful in operational planning at lead times of two to four weeks or greater. Decisions made at shorter lead-times are generally informed by forecasts. One of the challenges in designing a new climatology data system -- to include generation, storage, and access -- is anticipating how the data might be used, and therefore how to design the system ... |
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| Creation of a Dynamical Stratospheric Turbulence Forecasting and Nowcasting Tool for High Altitude Airships and Other Aircraft |
20-Oct-2008 |
9 pages |
| Authors:
David C Fritts; NORTHWEST RESEARCH ASSOCIATES INC REDMOND WA
|
| We have now completed a Phase II development of an atmospheric decision aid (ADA) forecasting methodology for military, civilian, and commercial aircraft for which significant wave and turbulence activity may pose an operational or functional risk. The specific goal for MDA purposes was to create a forecasting methodology for turbulence activity at the expected High Altitude Airship (HAA) flight altitude of 22 km that specifically addresses all of the dominant ... |
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| Cross-Scale Coupling: Modeling Oceanic Variability from the Pacific Basin Scale to Local Coastal Domains Along the North America West Coast (NAWC) |
01-Sep-2008 |
11 pages |
| Authors:
James C McWilliams; Xavier J Capet; Francois Colas; Jaison Kurian; CALIFORNIA UNIV LOS ANGELES INST OF GEOPHYSICS AND PLANETARY PHYSICS
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| We investigate the space-time structure and causal mechanisms for cross-scale coupling (i.e., from simulations of global and basin-scale circulations and local flows) as it occurs in the oceanic circulation and water properties along the North American West Coast (NAWC) within the context of large-scale changes throughout the Pacific basin. The cross-scale coupling is manifested over a broad range of time scales, ranging from synoptic and intra-seasonal (with cross-scale communication by ... |
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| Meteorological/Sensor Optimization Urban Summary and Model Survey |
01-Sep-2008 |
26 pages |
| Authors:
Ron Cionco; Manuel D Bustillos; Gail T Vaucher; Robert O Brice; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM
|
| The purpose of the report is to introduce and outline a proposed resource that provides a survey of an Army-relevant review of models as well as an assessment of models for future U.S. Army Research Laboratory (ARL) Urban Studies. The resource documentation establishes a number of models available from military and government agencies, colleagues, open literature, product reviews, technical reports, and Web sites. The resource provides a description of valuable ... |
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| Using the Advanced Research Version of the Weather Research and Forecasting Model (WRF-ARW) to Forecast Turbulence at Small Scales |
01-Sep-2008 |
30 pages |
| Authors:
Jeffrey E Passner; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
| The U.S. Army Research Laboratory (ARL) has an interest in high spatial and temporal resolution weather output with an emphasis on products that assist warfighter decision aids and applications in battlefield environments. This model study was done in support of the short-range Army tactical analysis/nowcasting system called the Weather Running Estimate-Nowcast (WRE-N) as well as for longer-range forecasting support. The model utilized to investigate fine-scale weather processes, the Advanced Research ... |
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| White Sands Missile Range 2007 Urban Study: Data Processing - Volume DP-1 (Sonic Calibration) |
01-Sep-2008 |
64 pages |
| Authors:
Manuel Bustillos; Sean D'Arcy; Robert Brice; Gail Vaucher; Ron Cionco; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD COMPUTATIONAL AND INFORMATION SCIENCES DIR
|
| Calibrating sensors is an important step in determining the confidence one has in the quality of data acquired. Without access to a National Institute of Standards and Technology (NIST) wind tunnel facility, side-by-side relative calibration (against a NIST calibrated sensor) is an alternate method for calibrating meteorological sensors. For the White Sands Missile Range 2007 Urban Study (W07US), a Pre- and Post-W07US calibration was conducted on the 27 ultrasonic anemometers ... |
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| Design and Implementation of an Active Calibration System for Weather Radars |
01-Sep-2008 |
177 pages |
| Authors:
Jason M Phillips; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Pulsed weather radars can be used to depict meteorological conditions such as rainfall rate and wind velocity. These quantities are calculated from measurements of reflectivity, mean radial velocity and velocity spread using echo signal samples from weather targets. These radar measurements derive from modified radio frequency (RF) echo signal parameters, including amplitude, frequency and phase, returned to the radar from the weather target. RF scattering and propagation effects modily echo ... |
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| A Probabilistic Approach to Tropical Cyclone Conditions of Readiness (TCCOR) |
01-Sep-2008 |
65 pages |
| Authors:
Kenneth A Wallace; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Tropical Cyclone Conditions of Readiness (TCCOR) are set at DoD installations in the Western Pacific to convey the risk associated with the onset of destructive winds from approaching tropical cyclones. In this thesis, the methods by which TCCOR are set were analyzed to determine if objective and/or probabilistic guidance could improve the process. The Tropical Prediction Utility (TPU) was developed by forecasters at Yokosuka, JA and the Joint Typhoon Warning ... |
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| Smart Climatology Applications for Undersea Warfare |
01-Sep-2008 |
117 pages |
| Authors:
Allon Turek; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Undersea warfare operations especially sound navigation and ranging (SONAR) are sensitive to small changes in the ocean environment. Variations in both atmospheric and oceanic conditions on monthly to decadal scales can have significant impacts on U.S. Navy operations in the undersea environment. Climate databases presently used in U.S. Navy tactical decision aids (TDAs) are based on less than optimal data sets and long term mean (LTM) climatologies that are unable ... |
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| Wave Climate and Littoral Sediment Transport Study for Virginia Beach, VA - Rudee Inlet to Cape Henry, Hydraulic Model Study |
01-Sep-2008 |
145 pages |
| Authors:
Michael J Briggs; Edward F Thompson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| The Norfolk District is preparing an Environmental Assessment for the use of sand sources off the coast of Cape Henry for future maintenance of the Virginia Beach, VA, shoreline. The primary purpose is to maintain a buffer for hurricane protection for structures landward of the existing beach. The Cape Henry Borrow Area is being considered as a sand source. The plan borrow scenario involves removing approximately 34.2 M cu yd ... |
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| Upper-Ocean Thermal Structure and the Western North Pacific Category 5 Typhoons. Part 1. Ocean Features and the Category 5 Typhoons' Intensification |
Sep-2008 |
20 pages |
| Authors:
Dong-Shan Ko; I -I Lin; Chun-Chien Wu; Iam-Fei Pun; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Category 5 cyclones are the most intense & devastating cyclones on earth. With increasing observations of category 5 cyclones, such as Hurricane Katrina (2005), Rita (2005), Mitch (1998), and Supertyphoon Maemi (2003) found to intensify on warm ocean features (i.e., regions of positive sea surface height anomalies detected by satellite altimeters), there is great interest in investigating the role ocean features play in the intensification of category 5 cyclones. Based ... |
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| Visual Analysis of North Atlantic Hurricane Trends Using Parallel Coordinates and Statistical Techniques |
07-Jul-2008 |
|
| Authors:
Chad A Steed; Patrick J Fitzpatrick; T J Swan Jankun-Kelly; J E II; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOSCIENCES DIV
|
 | The integration of automated statistical analysis capabilities with a highly interactive, multivariate visualization interface is presented in this paper. Innovative visual interaction techniques such as dynamic axis scaling, conjunctive parallel coordinates, statistical indicators, and aerial perspective shading are exploited to enhance the utility of classical parallel coordinate plots. Moreover, the system facilitates statistical processes such as stepwise regression and correlation analysis to assist in the identification and quantification of the ... |
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| Investigating Characteristics of Air-Sea Interactions in the Wave and Surface Layers |
02-Jul-2008 |
13 pages |
| Authors:
Jielun Sun; NATIONAL CENTER FOR ATMOSPHERIC RESEARCH BOULDER CO MESOSCALE AND MICROSCALE METEOROLOGY DIV
|
| We were funded to participate in the Coupled Boundary Layers/Air-Sea Transfer under low wind (CBLAST-Low) pilot experiment in 2001 and main experiment in 2003 and analyze the data collected from both field campaigns. Our focuses are air-sea interactions under weak winds by analyzing simultaneous measurements of directional waves and atmospheric turbulence. We found that air-sea interactions strongly depend on whether the oceanic wave energy peak is dominated by swell or ... |
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| Portable Weather Intelligence for the Soldier |
01-Jul-2008 |
24 pages |
| Authors:
David Sauter; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM COMPUTATIONAL AND INFORMATION SCIENCE DIRECTORATE
|
| Enhancements in computer hardware and software technology have allowed the development and porting of advanced environmental effects applications on highly portable lightweight computing devices. The U.S. Army Research Laboratory's (ARL) Battlefield Environment Division has developed a number of such products on a personal digital assistant (PDA) for use by individual Soldiers. This technology includes a mobile heat stress calculator, an Artillery meteorological messages application (fielded in fiscal year 2007 (FY07) ... |
|
| Our Changing Planet: The U.S. Climate Change Science Program for Fiscal Year 2009 |
Jul-2008 |
244 pages |
| Authors:
Carlos M Gutierrez; Samuel W Bodman; Marburger; John H III; CLIMATE CHANGE SCIENCE PROGRAM WASHINGTON DC
|
| Our Changing Planet: The U.S. Climate Change Science Program for Fiscal Year 2009 describes the activities and plans of the Climate Change Science Program (CCSP), which incorporates the U.S. Global Change Research Program established under the Global Change Research Act of 1990, and the Climate Change Research Initiative that was established by the President in 2001. CCSP coordinates and integrates scientific research on climate and global change supported by 13 ... |
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| Summer Generation of the Southern Gulf of California Eddy Train |
24-Jun-2008 |
|
| Authors:
Luis Zamudio; Patrick J Hogan; E J Metzger; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Ocean color and sea surface temperature satellite-observations show the existence of a series of anticyclonic eddies along the axis of the southern Gulf of California (SGOC). To investigate the summer generation of these eddies, a regional version of the HYbrid Coordinate Ocean Model (HYCOM) has been configured for the GOC and has been nested inside the global model. A Suite of experiments, using the nested GOC model, was developed and ... |
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| Defense Emergency Response Fund |
20-Jun-2008 |
37 pages |
| Authors:
Ellen Kleiman-Redden; Patricia A Marsh; Lorin T Pfeil; Henry Y Adu; Emmanuel A Appiah; Sharon A Loftin; Sonya T Davis; Sue-milney Sepulveda-Recio; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| This report discusses the use of DoD emergency funds to finance DoD-assisted relief efforts in declared emergencies. Under the Robert T. Stafford Disaster Relief and Emergency Assistance Act, Public Law 106-390, October 30, 2000, DoD may be required to provide assistance to Federal agencies and state and local governments in response to major disasters or states of emergency declared by the President. In FY 1990, Congress established the Defense Emergency ... |
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| Climatic Variations in Tropical West African Rainfall and the Implications for Military Planners |
01-Jun-2008 |
111 pages |
| Authors:
Christi S Montgomery; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| We have identified statistical and dynamical relationships between summer rainfall variations in tropical West Africa (TWA) and El Nino/La Nina (ENLN) events in the tropical Pacific. Our primary data sets were the National Centers for Environmental Prediction / National Center for Atmospheric Research reanalysis fields and the Multivariate ENSO Index (MEI) for the period 1970-2007. Correlations of TWA rainfall and MEI time series showed that high (low) TWA rainfall was ... |
|
| Enormous Disc of Cool Gas Surrounding the Nearby Powerful Radio Galaxy NGC 612 (PKS 0131-36) |
22-May-2008 |
15 pages |
| Authors:
R Ojha; B H Emonts; R Morganti; T A Oosterloo; J Holt; C N Tadhunter; van Hulst; J M der; E M Sadler; COLUMBIA UNIV NEW YORK DEPT OF ASTRONOMY
|
| We present the detection of an enormous disc of cool neutral hydrogen (HI) gas surrounding the SO galaxy NGC 612, which hosts one of the nearest powerful radio sources (PKS 0131-36). Using the Australia Telescope Compact Array, we detect M(HI) = 1.8 x 10(9) M(.) of HI emission-line gas that is distributed in a 140 kpc wide disc-like structure along the optical disc and dust-lane of NGC 612. The bulk ... |
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| Global Climate Change and NEPA: The Difficulty with Cumulative Impacts Analysis |
18-May-2008 |
69 pages |
| Authors:
Tubbs; Marvin W II; GEORGE WASHINGTON UNIV WASHINGTON DC SCHOOL OF LAW
|
| This paper will provide a survey of the current requirements under the law for addressing global climate change in NEPA documents, along with various methodologies for quantifying the potential global climate change impacts of federal actions subject to NEPA. |
|
| Scientific Assessment of the Effects of Global Change on the United States: A Report of the Committee on Environment and Natural Resources, National Science and Technology Council |
01-May-2008 |
272 pages |
| Authors:
NATIONAL SCIENCE AND TECHNOLOGY COUNCIL WASHINGTON DC COMMITTEE ON ENVIRONMENT AND NATURAL RESOURCES
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| The climate is changing, and these changes are affecting the world around us. In order to deal with the changes that are taking place now and to prepare for those that are likely to happen in the future, decisionmakers need information about global change and its effects on the Nation and the world we live in. This national scientific assessment integrates, evaluates, and interprets the findings of the U.S. Climate ... |
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| Modification of the Geographic Corrosivity Index and its Application to Overseas Bases |
01-Mar-2008 |
61 pages |
| Authors:
J C Bitcon; S G Russo; DEFENSE SCIENCE AND TECHNOLOGY ORGANIZATION VICTORIA (AUSTRALIA) MARITIME PLATFORMS DIV
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| A Geographic Corrosivity Index (GCI) has been developed previously that models the atmospheric corrosivity at RAAF bases within Australia. Geographic, wind and other climate data are used to calculate the index for each base. The correlation of the GCI with atmospheric corrosion data from a large number of overseas bases, covering a broader range of geographic features and climatic conditions than experienced in Australia, was investigated to test its wider ... |
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| South China Sea Wave Characteristics During Typhoon Muifa Passage in Winter 2004 |
01-Jan-2008 |
49 pages |
| Authors:
Kuo-Feng Cheng; Peter C Chu; NAVAL POSTGRADUATE SCHOOL MONTEREY CA NAVAL OCEAN ANALYSIS AND PREDICTION LAB
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| Ocean wave characteristics in the western Atlantic Ocean (Hurricane Region) to tropical cyclones have been investigated extensively, but not the regional seas in the western Pacific such as the South China Sea (Typhoon Region). This is due to the lack of observational and modeling studies in western Pacific regional seas. To fill this gap, Wavewatch-III (WW3) is used to study the response of the South China Sea (SCS) to Typhoon ... |
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Meteorology
