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Articles 1 - 30 of 34
Full-Text Articles in Meteorology
Umphlett Qci Dec 2017, Natalie A. Umphlett
Umphlett Qci Dec 2017, Natalie A. Umphlett
HPRCC Personnel Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Drought
Drought Continues to Cause Impacts
Large Butterfly Migration Across the Plains
High Winds Down Corn Across Nebraska
3-Month Precipitation and Temperature Outlooks
Soil Moisture Conditions
The Extratropical Transition Of Tropical Cyclones. Part I: Cyclonic Evolution And Direct Impacts, Clark Evans, Kimberly M. Wood, Sim D. Aberson, Heather M. Archambault, Shawn M. Milrad, Lance F. Bosart, Et Al.
The Extratropical Transition Of Tropical Cyclones. Part I: Cyclonic Evolution And Direct Impacts, Clark Evans, Kimberly M. Wood, Sim D. Aberson, Heather M. Archambault, Shawn M. Milrad, Lance F. Bosart, Et Al.
Publications
Extratropical transition (ET) is the process by which a tropical cyclone, upon encountering a baroclinic environment and reduced sea surface temperature at higher latitudes, transforms into an extratropical cyclone. This process is influenced by, and influences, phenomena from the tropics to the midlatitudes and from the meso- to the planetary scales to extents that vary between individual events. Motivated in part by recent high-impact and/or extensively observed events such as North Atlantic Hurricane Sandy in 2012 and western North Pacific Typhoon Sinlaku in 2008, this review details advances in understanding and predicting ET since the publication of an earlier review …
Embroidered Meteorology, Bettina L. Matzkuhn
Embroidered Meteorology, Bettina L. Matzkuhn
Artizein: Arts and Teaching Journal
Weathering is a series of embroidered works that explore the symbolic and cartographic language of meteorology. Through research, mentorship and the physical work, my understanding and anxiety around weather has grown. Making art is a learning process for me: the haptic is a means for understanding. From embroidered world maps to animation to painted laundry, I conflate the intricacy of textiles with the complicated nature of the atmosphere.
Informing Responders Using Gis And Gps, Deidre Mccarthy
Informing Responders Using Gis And Gps, Deidre Mccarthy
CHAR
Hurricane Katrina devastated the Gulf Coast in August 2005 and created the single largest disaster for cultural resources that the United States has witnessed since the inception of the National Historic Preservation Act (NHPA) in 1966. Notably, the NHPA created the National Register of Historic Places, our nation’s catalog of important cultural resources. The NHPA also stipulates that any federal undertaking which may adversely affect National Register eligible resources be mitigated. For the Federal Emergency Management Agency (FEMA), Katrina created the largest compliance project ever under Section 106 of the NHPA.
Although causing a great deal of damage, Katrina also …
Physoon - Radiation Detection In Various High Altitude Environments, Christopher Helmerich
Physoon - Radiation Detection In Various High Altitude Environments, Christopher Helmerich
2017 Academic High Altitude Conference
Physoon is a high altitude ballooning payload designed and built by members of the Space Hardware Club for the purpose of comparing cosmic and terrestrial radiation from a variety of environmental conditions, including clear days, night times, solar events (eclipses, solar flares, coronal mass ejections), and thunderstorms. Over three design iterations, Physoon has flown eleven times with various combinations of Geiger counters sensors: a low energy Alpha-Beta-Gamma detector, an unshielded high-energy Beta-Gamma detector, and a shielded high-energy Beta-Gamma detector. One of these iterations successfully recovered data from high altitude during totality of the Great American Solar Eclipse. Another iteration was …
Quantification Of Precipitation Asymmetries In Tropical Cyclones And Their Relationship To Storm Intensity Changes Using Trmm Data, Yongxian Pei
FIU Electronic Theses and Dissertations
The climatology of precipitation asymmetries in Tropical Cyclones (TCs) and their relationship to TC intensity changes using 16 years of data from the Tropical Rainfall Measuring Mission (TRMM) satellite. TC Inner core precipitation asymmetries were quantified using the Fourier wavenumber decomposition method upon the pixel level data of 3,542 TRMM TMI overpasses. Composites of wavenumber–1 and wavenumber 1–6 total precipitation asymmetries were constructed to show the distribution pattern under different storm motion speed, vertical wind shear and the combined effects of varying vertical wind shear and storm motion. Results indicate that motion–relative total precipitation asymmetry is located down–motion. The phase …
Droughtscape- Fall 2017, National Drought Mitigation Center
Droughtscape- Fall 2017, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
Drought worsens in northern Great Plains............. 2
Drought takes toll on ag, livestock................ 4
Study examines ag advisors’ views on climate change............... 5
New drought definition could lead to better preparation.............. 6
McCook takes big steps toward drought readiness.............8
Group hopes to map drought planning process for Korea............9
South African researcher working to forecast drought.................. 10
Cultivating drought preparedness in South Africa.............. 12
Mobile Radar As An Undergraduate Education And Research Tool: The Erau C-Breese Field Experience With The Doppler On Wheels, Shawn M. Milrad, Christopher G. Herbster
Mobile Radar As An Undergraduate Education And Research Tool: The Erau C-Breese Field Experience With The Doppler On Wheels, Shawn M. Milrad, Christopher G. Herbster
Publications
Embry-Riddle Aeronautical University Convective-Boundary Research Engaging Educational Student Experiences (ERAU C-BREESE) was an 18-day National Science Foundation (NSF)-funded educational Doppler on Wheels (DOW) deployment through the Center for Severe Weather Research in May 2015. ERAU C-BREESE had three primary areas of focus: meteorological field observations and research, undergraduate experiential learning, and local community outreach. ERAU undergraduate meteorology students had the unique opportunity to forecast for, collect, and analyze field measurements of sea-breeze processes and convection. The scientific objectives of ERAU C-BREESE were to forecast, observe, and analyze central Florida sea-breeze processes and thunderstorms by combining a DOW with more traditional …
Umphlett Qci Sept 2017, Natalie Umphlett
Umphlett Qci Sept 2017, Natalie Umphlett
HPRCC Personnel Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Drought
Wildfires Impact Montana and Beyond
Kansas City, MO Area Flooding
Numerous Impacts to Agriculture
3-Month Precipitation and Temperature Outlooks
U.S. Seasonal Drought Outlook
Droughtscape- Summer 2017, National Drought Mitigation Center
Droughtscape- Summer 2017, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
Drought policy write shops conclude in Caribbean...............2
Drought encroaches on Northern Plains in second quarter...........3
Impact tool racks up submissions in second quarter............. 4
Maps on new website highlight drought effects on ag industry.......... 6
Centers release new flash drought tool: QuickDRI........... 6
NDMC contributes to EU report on disaster risk management........... 8
Groups earn Climate Adaptation award for work with tribes............. 9
NDMC, ICPAC director talk collaboration on drought in Greater Horn of Africa......... 11
Up next in MENA: Drought vulnerability assessments........... 12
Mesonets: Mesoscale Weather And Climate Observations For The United States, Rezaul Mahmood, Ryan Boyles, Kevin Brinson, Christopher Fiebrich, Stuart Foster, Ken Hubbard, David Robinson, Jeff Andresen, Dan Leathers
Mesonets: Mesoscale Weather And Climate Observations For The United States, Rezaul Mahmood, Ryan Boyles, Kevin Brinson, Christopher Fiebrich, Stuart Foster, Ken Hubbard, David Robinson, Jeff Andresen, Dan Leathers
HPRCC Personnel Publications
Mesoscale in situ meteorological observations are essential for better understanding and forecasting the weather and climate and to aid in decision-making by a myriad of stakeholder communities. They include, for example, state environmental and emergency management agencies, the commercial sector, media, agriculture, and the general public. Over the last three decades, a number of mesoscale weather and climate observation networks have become operational. These networks are known as mesonets. Most are operated by universities and receive different levels of funding. It is important to communicate the current status and critical roles the mesonets play. Most mesonets collect standard meteorological data …
Mipas Imk/Iaa Carbon Tetrachloride (Ccl4) Retrieval And First Comparison With Other Instruments, Ellen Eckert, Thomas Von Clarmann, Alexandra Laeng, Gabriele P. Stiller, Bernd Funke, Norbert Glatthor, Udo Grabowski, Sylvia Kellmann, Michael Kiefer, Andrea Linden, Peter F. Bernath
Mipas Imk/Iaa Carbon Tetrachloride (Ccl4) Retrieval And First Comparison With Other Instruments, Ellen Eckert, Thomas Von Clarmann, Alexandra Laeng, Gabriele P. Stiller, Bernd Funke, Norbert Glatthor, Udo Grabowski, Sylvia Kellmann, Michael Kiefer, Andrea Linden, Peter F. Bernath
Chemistry & Biochemistry Faculty Publications
MIPAS thermal limb emission measurements were used to derive vertically resolved profiles of carbon tetrachloride (CCl4). Level-1b data versions MIPAS/5.02 to MIPAS/5.06 were converted into volume mixing ratio profiles using the level-2 processor developed at Karlsruhe Institute of Technology (KIT) Institute of Meteorology and Climate Research (IMK) and Consejo Superior de Investigaciones Cientificas (CSIC), Instituto de Astrofisica de Andalucia (IAA). Consideration of peroxyacetyl nitrate (PAN) as an interfering species, which is jointly retrieved, and CO2 line mixing is crucial for reliable retrievals. Parts of the CO2 Q-branch region that overlap with the CCl4 signature were …
Umphlett Qci June 2017, Natalie Umphlett
Umphlett Qci June 2017, Natalie Umphlett
HPRCC Personnel Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Snowpack and Streamflow
Historic Flooding in Missouri
Spring Conditions Impact Agriculture
3-Month Precipitation and Temperature Outlooks
U.S. Seasonal Drought Outlook
Convective Mode Climatology Of Tennessee Tornado Events And Effect On National Weather Service Warning Processes, Kelly Nicole Gassert
Convective Mode Climatology Of Tennessee Tornado Events And Effect On National Weather Service Warning Processes, Kelly Nicole Gassert
Masters Theses
Tennessee resides in the Southeastern United States, a region prone to violent tornadoes on a year-round basis. With one of the highest tornado fatality rates in the country, and a climatology that varies across the state, analysis of storms resulting in Tennessee tornadoes is necessary for improving forecasting techniques and decreasing loss of life. This study analyzed convective modes responsible for Tennessee tornadoes from 2003 to 2014 to determine an association with fatalities, seasonality, day and night, tornado magnitude, regionality, and multiple-tornado days. Chi-squared tests were conducted to determine if these patterns were significant. National Weather Service forecasters from the …
Droughtscape- Spring 2017, National Drought Mitigation Center
Droughtscape- Spring 2017, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
Drought center helps islands reduce drought vulnerability.......... 2
2017 sees above-average precipitation, warmer temps.......... 3
California pulls out of drought............. 4
After tech transfer, training Tunisia launches first drought map............... 6
Drought center releases 2016 annual report.............. 7
Book chapter focuses on drought and health................ 8
U2U wraps up, brings useful tools to farmers...............9
Survey finds drought info leads to better decisions.............. 10
Evaluation And Predictability Of Observation-Based Surface Wind Asymmetric Structure In Tropical Cyclones, Bradley Klotz
Evaluation And Predictability Of Observation-Based Surface Wind Asymmetric Structure In Tropical Cyclones, Bradley Klotz
FIU Electronic Theses and Dissertations
Surface wind speeds are an important and revealing component of the structure of tropical cyclones (TCs). To understand the asymmetric structure of surface winds in TCs associated with differences in formation region, environmental wind shear, storm forward motion, and TC strength and intensification, a twelve year database of satellite scatterometer data are utilized to produce composite total wind speed and Fourier-derived, low wavenumber analyses. A quantified asymmetry is determined as a function of TC intensity and reveals the tropical storms are influenced by wind shear at all TC-centric radii but only for areas away from the radius of maximum wind …
Latitudinal Position And Trends Of The Intertropical Convergence Zone (Itcz) And Its Relationship With Upwelling In The Southern Caribbean Sea And Global Climate Indices, Kaitlyn E. Colna
USF Tampa Graduate Theses and Dissertations
The Intertropical Convergence Zone (ITCZ) is a feature that results from the ocean-atmosphere interactions in the tropics around the world. The ITCZ is characterized by surface wind convergence, tall storm clouds, and it forms a belt of high time-averaged precipitation around the globe. The ITCZ undergoes seasonal migrations between 5°S and 15°N roughly following the subsolar point on Earth with the seasons, with a mean annual position located slightly above the Equator, between 2° and 5°N.
This study tested the hypothesis that there was a northward shift in the median position of the ITCZ in the first decade of the …
P16. Ralmo Rotational Raman Temperature Retrieval: First Steps Towards The Application Of Optimal Estimation Method (Oem), Shayamila N. Mahagammulla Gamage, Robert Sica, Alexander Haefele
P16. Ralmo Rotational Raman Temperature Retrieval: First Steps Towards The Application Of Optimal Estimation Method (Oem), Shayamila N. Mahagammulla Gamage, Robert Sica, Alexander Haefele
Western Research Forum
Background:
Temperature is an important atmospheric parameter that plays an extensive role in the fields of atmospheric dynamics, climatology, meteorology, and chemistry. Light detection and ranging (lidar), is a remote sensing technology that can be used for atmospheric temperature profiling. A lidar transmits short laser pulses into the atmosphere and the light scattered by the particles in the atmosphere is collected and measured using a telescope. The atmospheric temperatures can be retrieved by analysing the Pure Rotational Raman (PRR) scatter measurements from the nitrogen and oxygen molecules in the atmosphere.
Methods:
In this study use the Optimal Estimation Method (OEM) …
Umphlett Qci March 2017, Natalie Umphlett
Umphlett Qci March 2017, Natalie Umphlett
HPRCC Personnel Publications
Highlights for the Basin
Temperature and Precipitation Anomalies
Mountain Snowpack
Christmas Day Storm
Heavy Fuels Increase Fire Risk
Early Warmth Causes Concerns
3-Month Precipitation and Temperature Outlooks
NOAA Spring Flood Outlook
Assessment Of An Atmospheric Transport Model For Annual Inverse Estimates Of California Greenhouse Gas Emissions, Justin Bagley, Seongeun Jeong, Xinguang Cui, Sally Newman, Jingsong Zhang, Chad Priest, Mixtli Campos-Pineda, Arlyn Andrews, Laura Bianco, Matthew Lloyd, Neil Lareau, Craig Clements, Marc Fischer
Assessment Of An Atmospheric Transport Model For Annual Inverse Estimates Of California Greenhouse Gas Emissions, Justin Bagley, Seongeun Jeong, Xinguang Cui, Sally Newman, Jingsong Zhang, Chad Priest, Mixtli Campos-Pineda, Arlyn Andrews, Laura Bianco, Matthew Lloyd, Neil Lareau, Craig Clements, Marc Fischer
Faculty Publications, Meteorology and Climate Science
Atmospheric inverse estimates of gas emissions depend on transport model predictions, hence driving a need to assess uncertainties in the transport model. In this study we assess the uncertainty in WRF-STILT (Weather Research and Forecasting and Stochastic Time-Inverted Lagrangian Transport) model predictions using a combination of meteorological and carbon monoxide (CO) measurements. WRF configurations were selected to minimize meteorological biases using meteorological measurements of winds and boundary layer depths from surface stations and radar wind profiler sites across California. We compare model predictions with CO measurements from four tower sites in California from June 2013 through May 2014 to assess …
Estimating Methane Emissions From Biological And Fossil-Fuel Sources In The San Francisco Bay Area, Seongeun Jeong, Xinguang Cui, Donald Blake, Ben Miller, Stephen Montzka, Arlyn Andrews, Abhinav Guha, Philip Martien, Ray Bambha, Brian Lafranchi, Hope Michelsen, Craig Clements, Pierre Glaize, Marc Fischer
Estimating Methane Emissions From Biological And Fossil-Fuel Sources In The San Francisco Bay Area, Seongeun Jeong, Xinguang Cui, Donald Blake, Ben Miller, Stephen Montzka, Arlyn Andrews, Abhinav Guha, Philip Martien, Ray Bambha, Brian Lafranchi, Hope Michelsen, Craig Clements, Pierre Glaize, Marc Fischer
Faculty Publications, Meteorology and Climate Science
We present the first sector-specific analysis of methane (CH4) emissions from the San Francisco Bay Area (SFBA) using CH4 and volatile organic compound (VOC) measurements from six sites during September – December 2015. We apply a hierarchical Bayesian inversion to separate the biological from fossil-fuel (natural gas and petroleum) sources using the measurements of CH4 and selected VOCs, a source-specific 1 km CH4 emission model, and an atmospheric transport model. We estimate that SFBA CH4 emissions are 166–289 Gg CH4/yr (at 95% confidence), 1.3–2.3 times higher than a recent inventory with much of the underestimation from landfill. Including the VOCs, …
A Model-Based Assessment Of Potential Impacts Of Man-Made Reservoirs On Precipitation, Jesse Winchester, Rezaul Mahmood, William Rodgers, Faisal Hossain, Eric Rappin, Joshua D. Durkee, Themis Chronis
A Model-Based Assessment Of Potential Impacts Of Man-Made Reservoirs On Precipitation, Jesse Winchester, Rezaul Mahmood, William Rodgers, Faisal Hossain, Eric Rappin, Joshua D. Durkee, Themis Chronis
HPRCC Personnel Publications
Land-use land-cover change (LULCC) plays an important role in weather and climate systems. Human modifications of land cover include building reservoirs and thus creating artificial lakes for multipurpose use. In this research, the authors have completed a Weather Research and Forecasting (WRF) Model–based assessment of impacts of two large parallel lakes on precipitation. This area is located in the western part of the states of Kentucky and Tennessee and known as the Land between the Lakes (LBL). To determine the impacts, this study has replaced the lakes with grass, deciduous forests, and bare soil and conducted model simulations for three …
Data From: Observing System Simulation Experiments For An Array Of Autonomous Biogeochemical Profiling Floats In The Southern Ocean, Igor Kamenkovich, Angelique Haza, Alison R. Gray, Carolina O. Dufour, Zulema Garraffo
Data From: Observing System Simulation Experiments For An Array Of Autonomous Biogeochemical Profiling Floats In The Southern Ocean, Igor Kamenkovich, Angelique Haza, Alison R. Gray, Carolina O. Dufour, Zulema Garraffo
Supplementary Data and Tools
Data in this collection is from Observation System Simulation Experiments (OSSEs) that were carried in support of the SOCCOM program. Synthetic profiles were extracted from model-simulated dissolved oxygen and inorganic carbon. Full maps were then reconstructed from these sparse datasets, using objective mapping. For description of the model and reconstruction method please see Kamenkovich, I., A. Haza, A. Gray, C. Dufour, and Z. Garraffo: "Observing System Simulation Experiments for an array of autonomous biogeochemical profiling floats in the Southern Ocean", Journal of Geophysical Research, DOI: 10.1002/2017JC012819
International Flyer Final, National Drought Mitigation Center
International Flyer Final, National Drought Mitigation Center
National Drought Mitigation Center: Publications
The National Drought Mitigation Center faculty and staff have worked with national and international organizations and countries around the world, providing a variety of services. The map shows where the drought center has collaborated on research, facilitated drought planning, shared technical knowledge, or provided programmatic advice.
Quick Drought Response Index: A Short-Term Dryness Indicator, National Drought Mitigation Center
Quick Drought Response Index: A Short-Term Dryness Indicator, National Drought Mitigation Center
National Drought Mitigation Center: Publications
WHAT IS QUICKDRI?
WHY WAS IT DEVELOPED?
WHAT INFORMATION IS USED IN QUICKDRI?
QUICKDRI PRODUCTS
ON THE QUICKDRI SITE:
THROUGH THE USGS DROUGHT VIEWER:
APPLICATION EXAMPLES:
Droughtscape- Winter 2017, National Drought Mitigation Center
Droughtscape- Winter 2017, National Drought Mitigation Center
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CONTENTS
NDMC partners with Sioux tribes to build climate resiliency............. 2
Drought intensifies in some regions of U.S. in fall............. 3
Fire danger and sequoia deaths in third quarter............. 4
2016: Year in review................. 6-8
MENA region forums elicit
feedback from stakeholders.............. 9
Tech pass-off in Tunisia.............. 10
Midwest DEWS meetings build collaboration, relationships............ 11
Workshop links drought, socioeconomic impacts........... 12
Drought center helps ranchers prepare for drought................. 12
Drought tourney in Nebraska goes low tech................... 13
The Effect Of The Dry Line And Convective Initiation On Drought Evolution Over Oklahoma During The 2011 Drought, Paul X. Flanagan, Jeffrey B. Basara, Bradley G. Illston, Jason A. Otkin
The Effect Of The Dry Line And Convective Initiation On Drought Evolution Over Oklahoma During The 2011 Drought, Paul X. Flanagan, Jeffrey B. Basara, Bradley G. Illston, Jason A. Otkin
HPRCC Personnel Publications
Observations from the Oklahoma Mesonet and high resolution Weather Research and Forecasting model simulations were used to evaluate the effect that the dry line and large-scale atmospheric patterns had on drought evolution during 2011. Mesonet observations showed that a “dry” and “wet” pattern developed across Oklahoma due to anomalous atmospheric patterns. The location of the dry line varied due to this “dry” and “wet” pattern, with the average dry line location around 1.5∘ longitude further to the east than climatology.Model simulations were used to further quantify the impact of variable surface conditions on dry line evolution and convective initiation (CI) …
High Plains Regional Climate Center (Poster)
High Plains Regional Climate Center (Poster)
HPRCC Personnel Publications
The HPRCC provides the public with several ways to access climate data and information. Whether via direct contact, website access, or through a subscription to one of HPRCC’s online services, users can acquire a variety of climate data products, such as: • Near Real-Time and Historical Climate Data • National and Regional Climate Data Maps • Agricultural Climate Products • Monthly, Quarterly, and Annual Regional Climate Summaries
Ndmc Annual Report 2017, Mark Svoboda, Kelly Smith, Deborah Bathke, Brian Fuchs, Cody L. Knutson, Tsegaye Tadesse
Ndmc Annual Report 2017, Mark Svoboda, Kelly Smith, Deborah Bathke, Brian Fuchs, Cody L. Knutson, Tsegaye Tadesse
National Drought Mitigation Center: Publications
Contents
03 From the director
04 Center aims to arm planners with best info possible
05 Unifying drought planning recommendations
06 McCook, Nebraska: A case study for success
07 Natural hazards framework applied to drought
08 New index map identifies fast-moving drought
09 Highlighting drought’s effects on agriculture
10 A fresh look for the U.S. Drought Monitor site
11 Reaching Spanish-language users
12 Bringing climate tools to farmers
13 Learning to assess climate vulnerability
14 2017 by the numbers
16 Where we were in 2017
18 Gauging vulnerability to drought
19 Predicting climate extremes in Africa
20 Connecting drought indicators …
Tropical Cyclone Intensification Under Moderate Vertical Wind Shear, Rosimar Rios-Berrios
Tropical Cyclone Intensification Under Moderate Vertical Wind Shear, Rosimar Rios-Berrios
Legacy Theses & Dissertations (2009 - 2024)
Deep-layer (200–850 hPa) vertical wind shear is generally an inhibiting factor for tropical cyclone intensification. Multiple studies—ranging from case studies to climatological analyses—have consistently shown that the chances of tropical cyclone intensification decrease with increasing vertical wind shear magnitude. However, tropical cyclones can intensify under moderate shear—the range of shear magnitudes that are neither too weak to have negligible influence on intensity nor too strong to completely halt intensification. Intensity, track, and precipitation forecasts of tropical cyclones under moderate shear can be highly uncertain; therefore, explaining how tropical cyclones evolve under seemingly unfavorable conditions is an important step towards improved …