Barrier islands are dynamic environments facing increasing vulnerability to climate changes, sea level rises, and anthropogenic activities. Hurricane Sandy (October 2012) modified the Atlantic coast of the United States. On Fire Island and Westhampton Island, New York, multiple overwashes and three breaches occurred. The U.S. Army Corps of Engineers filled two breaches, increased dune elevation and stabilized dunes by planting American beachgrass (Ammophila breviligulata). They built two restoration areas to mitigate the impact of an island stabilization project to federally listed breeding piping plovers (Charadrius melodus). The goal of this thesis was to quantify habitat changes after Hurricane Sandy, and assess habitat use of piping plovers specifically in human-created restoration areas. We created land cover maps using an object-based classification method (overall accuracy 85%), and field-collected data from four post-hurricane habitat types. Vegetation cover increased across all habitat types, especially in manipulated (30.1% increase) and natural overwashes (37.9% increase), while dry sand for nesting declined by 8%. Vegetation density indices were higher in natural overwashes than planted engineered dunes, likely a reflection of plant age and establishment. We monitored 83 nests (67 pairs) of piping plovers from 2015–2017. Restoration areas were successful in attracting breeding piping plovers, although pair densities were lowest in this habitat in 2016, and in 2017 plovers selected against the restoration areas (�2 = 29.47, df = 3, p<0.0001). There was no effect of habitat type on reproductive parameters. We suggest vegetation removal may be necessary to maintain early successional habitats for piping plover management. / Master of Science / Barrier islands are thin strips of land, which generally lie parallel to the mainland. They are dynamic environments subject to change from weather conditions and ocean currents. They are vulnerable to future climate changes, sea level rise, and increased human activity. Hurricane Sandy, October 2012, caused major landscape changes to the Atlantic coast. On two barrier islands, Fire Island and Westhampton Island, south of Long Island, the U.S. Army Corps of Engineers (USACE) further modified the post-hurricane habitats. They created two restoration sites designed to offset the impact of an island stabilization project to a federally protected breeding shorebird, the piping plover. Piping plovers nest on unvegetated or sparsely vegetated sand. We created land cover maps from aerial images and collected field data to describe habitat changes after Hurricane Sandy (2013, 2015–2017) in four habitat types creating during or after the hurricane. The vegetation cover and density increased across these four habitats, but especially in the manipulated overwashes and natural overwashes. This is likely due to the age of the plants in each habitat type. As vegetation grew back, areas of sand in each habitat type declined. Human-created restoration sites were used by plovers but in 2017 plovers used them less than expected. We monitored piping plover nests and chicks (April to August 2015–2017), and there were no differences in these measurements among habitat types. The findings from this thesis will assist in piping plover conservation on Fire Island and Westhampton Island.

Survivors of natural disaster may suffer from Post Traumatic Stress Disorder (PTSD). In developing nations, such as the Honduras, poverty and limited resources mean that disaster relief from outside the country is needed. Researchers (Crigger, Holcomb, and Weiss, 1999) interviewed survivors of Hurricane Mitch. They reported overwhelming feelings of helplessness/powerlessness among disaster survivors. They also raised the question of whether this was evidence of the presence of PTSD. The purpose of this retrospective analysis of symptoms reported by urban Hondurans in the aftermath of Hurricane Mitch was to examine the possibility that these symptoms were related to PTSD. A sample of 345 clinic health forms was analyzed. The research questions were: 1) What were the chief complaints of urban Hondurans seen in the mission clinics over a 5-day period in March of 1999? 2) Do the urban Hondurans attribute their illness to the effects of Hurricane Mitch? 3) Are reported symptoms consistent with a diagnosis of Post Traumatic Stress Disorder? 4) What are the nursing implications for future post-disaster interventions in developing nations? While the findings of this study are not statistically significant, the clinical significance cannot be ignored. Several symptoms which have been well documented to be associated with PTSD were reported with nearly twice the expected frequency by subjects who also reported being sick as a consequence of Hurricane Mitch. In PTSD, early identification and intervention, is directly related to the reduced rate of comorbidity and chronicity of the disorder.

How can architects let their buildings interact with the water while protecting occupants from the potential danger? The two intents are very different and often compete with one, either protection or recreation, as the primary program in one project. Water draws people, everyone likes being near water. People visit waterfalls and the beach just to experience moving water, they go boating and kayaking just to be on the water. Water views and access are considered an amenity that drive up prices in buildings. Whenever possible architects should strive to connect their architecture and water and to let occupants interact with the water. However, water can be dangerous too. Overfull rivers wash away roads and cars. Floods inundate entire cities, and hurricanes devastate huge islands. In addition to catastrophic damage sea levels are rising around the world causing damage and rendering low lying land uninhabitable. Architects must protect against these dangers. If designed correctly buildings can offer shelter from storms and resist rising water of all kinds. For my thesis I decided to study how to reconcile these two conflicting approaches to water. / Master of Architecture / Water draws people,everyone likes being near water. People visit waterfalls and the beach just to experience moving water, they go boating and kayaking just to be on the water. Water views and access are considered an amenity that drive up prices in buildings and resturants. However, water can be dangerous too. Overfull rivers wash away roads and cars. Floods inundate entire cities, and hurricanes devastate huge islands. In addition to catastrophic destruction sea levels are rising around the world causing damage and rendering low lying land uninhabitable. For my thesis I decided to study how to reconcile these two conflicting approaches to water.

This study uses topographic profiles, washover fan volumes, and shoreline retreat rates to explore relationships between barrier types and Hurricane Harvey storm washover sedimentation. Pre- and post-Hurricane Harvey topographic profiles were created on 15 transects using Bare Earth LiDAR (2016) and surveyed elevations (2019). Depth and area of washover fan measurements were collected to estimate washover fan volumes. An inverse relationship was found between washover fan volume and pre- and post-storm barrier heights. Based on the topographic profiles, one section of shoreline had a scarp up to 3m high which blocked overwash, but appears to have increased shoreline erosion. In contrast, a low-lying section of shoreline generated relatively large washover fans, but experienced less shoreline retreat. Shoreline retreat was further quantified between 2014 and 2019 using Google Earth Imagery from 2014, 2016, 2017, and 2019 to track migration of the shoreline. The entire shoreline in the study area is undergoing relatively rapid retreat, but the results suggest that Hurricane Harvey increased erosional rates. The Colorado River Jetty borders the study area and may have acted as an anthropogenic barrier, likely reducing storm surge energy and contributing to marsh aggradation on transects in its close proximity. The study findings indicate that the identification and incorporation of other variables that influence washover magnitude would further the understanding of this complex natural system. The research results provide valuable information on the interaction of hurricane storm surge with natural and anthropogenic barriers, beach and dune erosion, and marsh aggradation along the coast of Texas.

Where people go between evacuation and recovery remains an understudied aspect of disaster research. Whether experiencing multiple displacements, permanent displacement, or undergoing recovery in a damaged dwelling, the spatial and temporal dimensions of disaster displacement can have direct impacts on the recovery experiences of survivors. Pulling from focus group data gathered in 2017 from Hurricane Sandy survivors in New Jersey, this qualitative research focuses on the experiences of those who recovered in-situ, or within their damaged dwelling following the storm, and the various ways this non-displacement impacted their recovery. A content analysis following a grounded theory approach produced the emergent themes of the in-situ experience, including: a lack of suitable shelter, an exposure to secondary hazards, and an inability to achieve satisfactory emotional recovery. This study contributes to the growing body of literature surrounding recovery experiences, and it introduces valuable insights into the challenges that survivors face while recovering in-situ.

Tropical cyclones (TCs) often change intensity as they move over mesoscale oceanic features, as a function of the oceanic mixed layer (OML) thermal response (cooling) to the storm's wind stress. For example, observational evidence indicates that TCs in the Gulf of Mexico rapidly weaken over cyclonic cold core eddies (CCEs) where the cooling response is enhanced, and they rapidly intensify over anticyclonic warm features such as the Loop Current (LC) and Warm Core Eddies (WCEs) where OML cooling is reduced. Understanding this contrasting thermal response has important implications for oceanic feedback to TCs' intensity in forecasting models. Based on numerical experimentation and data acquired during hurricanes Katrina and Rita, this dissertation delineates the contrasting velocity and thermal response to TCs in mesoscale oceanic eddies. Observational evidence and model results indicate that, during the forced stage, the wind-driven horizontal current divergence under the storm's eye is affected by the underlying geostrophic circulation. Upwelling (downwelling) regimes develop when the wind stress vector is with (against) the geostrophic OML velocity vector. During the relaxation stage, background geostrophic circulations modulate vertical dispersion of OML near-inertial energy. The near-inertial velocity response is subsequently shifted toward more sub-inertial frequencies inside WCEs, where rapid vertical dispersion prevents accumulation of kinetic energy in the OML that reduces vertical shears and layer cooling. By contrast, near-inertial oscillations are vertically trapped in OMLs inside CCEs that increases vertical shears and entrainment. Estimates of downward vertical radiation of near-inertial wave energies were significantly stronger in the LC bulge (12.1X10 super -2 W m super -2) compared to that in CCEs (1.8X10 super -2 W m super -2). The rotational and translation properties of the geostrophic eddies have an important impact on the internal wave wake produced by TCs. More near-inertial kinetic energy is horizontally trapped in more rapidly rotating eddies. This response enhances vertical shear development and mixing. Moreover, the upper ocean temperature anomaly and near-inertial oscillations induced by TCs are transported by the westward-propagating geostrophic eddies. From a broader perspective, coupled models must capture oceanic features to reproduce the differentiated TC-induced OML cooling to improve intensity forecasting.

Catastrophes like Katrina destroy a community's critical infrastructure-a situation that instigates several dilemmas. Immediately, the community experiences information disruption within the community, as well as between the community and the outside world. The inability to communicate because of physical or virtual barriers to information instigates instant isolation. Prolonged, this scarcity of information becomes an information poverty spell, placing hardship on a community accustomed to easily accessible and applicable information. Physical devastation causes the scarcity of what Abraham Maslow calls basic survival needs-physiological, security, and social-a needs regression from the need to self-actualize, to meet intellectual and aesthetic needs. Because needs regress, the type of information required to meet the needs, also changes-regresses to information regarding survival needs. Regressed information needs requires altered information behaviors-altered methods and means to meet the information needs of the post-disaster situation. Situational information behavior follows new mores-altered norms-norms constructed for the post-disaster situation. To justify the unconventional, situational social norms, residents must adjust their beliefs about appropriate behavior. Situational beliefs support situational social norms-and situational information behaviors prevail. Residents find they must trust strangers, create makeshift messaging systems, and in some cases, disregard the law to meet their post-disaster survival needs.

In this study, the role of positive and negative religious coping was evaluated for their interrelationship with demographic variables, religious variables, and the outcome of mental health distress. A sample of 253 United Methodist Church leaders from counties throughout the state of Mississippi completed a survey including measures for demographic characteristics, religious coping, general coping, and mental health distress. Through regression analysis and path analysis, the relationships among the variables were measured to determine the importance of religious coping strategies while controlling for demographic variables and general forms of coping. Through regression analysis, the subjective report of personal losses immediately after Hurricane Katrina, participation in religious activities, and involvement in recovery efforts significantly predicted the presence of mental health distress among United Methodist Church leaders in Mississippi. In particular, religious participation insulated against the presence of mental health distress while personal losses and recovery involvement promoted the likelihood of mental health distress. Positive forms of general coping as well as religious forms of coping provided no significant contribution to the presence or absence of mental health distress, but negative forms of general coping did predict higher levels of mental health distress. Among this religiously oriented sample, religious forms of coping was not significantly predictive of the presence of mental health distress after accounting for general forms of coping which suggested that religious coping may be indistinguishable from forms of coping that are more generalized in nature. Through path analysis, negative religious coping significantly influenced the increased presence of mental health distress but did not serve as a mediator between mental health distress and other religious and demographic variables. A surprising finding in this study was the important mediating role of recovery involvement between mental health distress and other factors including religious participation, religious salience, and status as an ordained minister. Additionally, at nearly three years after the storm, persons reporting to currently live in close proximity to the disaster and persons continuing to experience loss due to the disaster reported a higher prevalence of mental health distress. Implications for the current literature and the need for further research were discussed.

No description available.

In recent years, social media platforms such as Twitter and Facebook have emerged as effective tools for broadcasting messages worldwide during disaster events. With millions of messages posted through these services during such events, it has become imperative to identify valuable information that can help the emergency responders to develop effective relief efforts and aid victims. Many studies implied that the role of social media during disasters is invaluable and can be incorporated into emergency decision-making process. However, due to the "big data" nature of social media, it is very labor-intensive to employ human resources to sift through social media posts and categorize/classify them as useful information. Hence, there is a growing need for machine intelligence to automate the process of extracting useful information from the social media data during disaster events. This dissertation addresses the following questions: In a social media stream of messages, what is the useful information to be extracted that can help emergency response organizations to become more situationally aware during and following a disaster? What are the features (or patterns) that can contribute to automatically identifying messages that are useful during disasters? We explored a wide variety of features in conjunction with supervised learning algorithms to automatically identify messages that are useful during disaster events. The feature design includes sentiment features to extract the geo-mapped sentiment expressed in tweets, as well as tweet-content and user detail features to predict the likelihood of the information contained in a tweet to be quickly spread in the network. Further experimentation is carried out to see how these features help in identifying the informative tweets and filter out those tweets that are conversational in nature.