cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17603/ds2-9wp5-rp81
title: Searles Lake Liquefaction
title: in Ridgecrest, CA earthquake sequence, July 4 and 5, 2019

description: Following the previous GEER missions, Paolo Zimmaro and Kenneth Hudson returned to Searles Lake to study liquefaction features. Ground deformations within the margins of the lakebed were visible in damage proxy maps generated from satellite radar data, and the purpose of the field mission was to verify whether these ground deformations were associated with liquefaction features.
description: The Ridgecrest Earthquake sequence included a M6.4 event on July 4 2019 followed by a M7.1 July 5 2019. These events occurred in the Eastern California Shear Zone, near Indian Wells Valley, south of China Lake and west of Searles Valley. The Geotechnical Extreme Events Reconnaissance (GEER) Association has partnered with several organizations to collect perishable data and document the important impacts of these events, including the United States Geological Survey, the California Geological Survey, the US Navy, the Southern California Earthquake Center, the National Aeronautics and Space Agency (NASA) Jet Propulsion Laboratory (JPL), and local utilities. Critical geotechnical features of this event are extensive surface ruptures, roads, water pipes, and gas pipes crossing the faults, liquefaction and lateral spreading, and liquefaction effects on structures. These effects are documented using field (ground) mapping, and Structure from Motion (SfM) using images collected by UAV's to develop high-resolution digital elevation models.
DOI: 10.17603/ds2-fzhn-2g10
title: StEER - Hurricane Barry (2019): Event Briefing

description: This Event Briefing summarizes the characteristics and impacts of  Hurricane Barry (2019), which made landfall in Louisiana on July 13, 2019. A high level summary of the structural impacts are provided relative to the estimated hazard intensities, including wind, storm surge and heavy rainfall. Key lessons related to the observed impacts are provided. Information provided herein was gathered from various websites, news channels, and social media. Therefore, this briefing does not include insights from detailed field investigations.
DOI: 10.17603/ds2-nq0q-hn15
title: Europe
title: in Rock Avalanche-Generated Mass Flow Observations

description: GIS mapping of the total area impacted primarily by coarse, rocky debris from rock avalanches (defined as Zone 1 deposits), as well as the total area impacted by sediment mass flows resulting from the rock avalanche events (defined as Zone 2 deposits). The data collected utilized published mapping, aerial and satellite imagery, topographic data, and terrain analysis.
description: Collection of rock avalanche case histories where the fragmented rock material overran sediments, including cases where the sediment was mobilized into a mass flow during the event. Impact areas have been mapped and basic descriptive attributes  were collected for each case. Events in this dataset include prehistoric events (maximum age approximately 8300 years before present) up to modern events. The events included in this dataset have been described previously in literature, but not combined into a single dataset with consistent descriptions of the coarse, rocky deposits and the sediment mass flows (if present). The data was used in the development of empirical relationships to estimate the runout distance and impact area for both the coarse, rocky debris and sediment mass flows stochastically for potential future events. The event description methodology, the data format and bibliography for case histories are described in the "Rock avalanche impact area data description and sources" file included. This methodology and data format are proposed as a template for the description of an expanded global dataset of events to be compiled. Spatial data is provided as shapefiles, which can be viewed within DesignSafe using the QGIS application within the Workspace.
DOI: 10.17603/ds2-qa2b-wz63
title: StEER - 22 May 2019 JEFFERSON CITY, MO TORNADO: FIELD ASSESSMENT STRUCTURAL TEAM 1 (FAST-1) EARLY ACCESS RECONNAISSANCE REPORT (EARR)

description: At around 11:40 PM on Wednesday, May 22, 2019 an EF-3 tornado struck Jefferson City, the capital of the state of Missouri, causing extensive structural damage. The tornado formed near Eldon, MO and traveled from southwest to northeast for 19.5 miles before dissipating just east-northeast of Jefferson City, MO. The heaviest damage was experienced along the 5 mile portion of the path through Jefferson City, MO and achieving an estimated peak wind speed of 160 mph, based on National Weather Service (NWS). Coincidentally, eight years ago, on the same day, an EF-5 tornado struck Joplin, MO, just 200 miles southwest of Jefferson City. The damage to the downtown portion of a capital city warranted more detailed structural investigation through a StEER Field Assessment Structural Team (FAST), which was led by the Wind Hazard Mitigation (WHAM) laboratory of Missouri University of Science and Technology (Missouri S&T). Deployments were conducted between May 23 and May 28 to collect the perishable data utilizing door-to-door assessments, Lidar scanning and drones. This Early Access Reconnaissance Report (EARR) provides an overview of Jefferson City Tornado, MO of 22 May 2019, StEER’s event response, and preliminary findings based on FAST-1’s collected data.
DOI: 10.17603/ds2-vx98-wh69
title: Undergraduate Research Experience (REU), NHERI 2019: Assessing Impacts of Traffic Network Damage from Earthquakes

description: This project addresses the need for a rapid and accurate assessment of critical transportation networks, particularly bridges, in the aftermath of a natural hazard. Following an earthquake, the closure of bridges and roads could have a significant impact on the travel times for emergency responders. Developing a way to predict vulnerabilities in the traffic network and evaluate travel times is crucial. Using Anchorage, Alaska, as a testbed, this model examines vulnerabilities of the bridges and uses a stochastic simulation to generate estimated downtimes. The model then predicts road closures from the downtimes to establish where delays in the network will occur following a disaster scenario.
DOI: 10.17603/ds2-14zk-v983
title: StEER - 10.20.2019 Dallas, TX EF-3 Tornado: Event Briefing

description: This Event Briefing (1) summarizes the EF3 tornado impacting Dallas, TX at 20 October 2019, (2) overviews damage to buildings and other infrastructure, as well as disruption to critical facilities such as schools and fire stations, and (3) summarizes key lessons learned. Information provided herein was gathered from various websites and limited observations of StEER members in the region. As there was no official StEER field assessment structural team, this briefing does not include insights from detailed field investigations.
DOI: 10.17603/ds2-4f99-pp97
title: 24 January, 2020 Turkey, Mw 6.7 Earthquake: Event Briefing

description: On January 24, 2020, at approximately 8:55 pm local time, a magnitude 6.8 earthquake, with a depth of 8.1 km, struck 9 km NNE of Doganyol, Turkey. The earthquake was felt across a large area of Turkey and several neighboring countries including Syria, Armenia and Georgia (USGS, 2020) and led to 72 collapsed buildings and caused varying levels of damage in other buildings. Objectives of this Event Briefing are 1) to provide details of the 24 January Mw 6.8 Sivrice Earthquake, 2) to describe damage to buildings and disruption to the community in terms of fatalities, downtime, and economic losses, and 3) to list key lessons learned.
DOI: 10.17603/ds2-96wj-cb74
title: 2020 NHERI Virtual Workshop for Early-Career Faculty & Researchers

description: The 2020 NHERI Virtual Workshop for Early Career Faculty & Researchers replaced the typically in-person NHERI Summer Institute for Early-Career Faculty. The workshop provides an overview of the NHERI network and its resources. It focuses on preparing individuals to write an NSF proposal using NHERI resources and offers insight into the NSF CAREER Award through a panel discussion with previous awardees. The workshop is ideal for early-career faculty, Ph.D. candidates, and industry researchers.
DOI: 10.17603/ds2-9gp1-f517
title: Cyclic axial loading on piles for jacket foundations in sand
title: in Decision Entropy: A New Theory for Representing Uncertainty in Managing Natural Hazard Risks

description: Driven pipe piles were cyclically loaded in the axial direction to study the effect on capacity.  This was performed by first driving the piles, waiting a certain amount of time for the gain capacity, loading the pile cyclically, then performing a tensile load test to determine the tensile capacity.  It was found that high-frequency compressive loading with the mobile shaker did not have a negative impact on the capacity of the piles after 150,000 cycles.  The low-frequency tensile loading using a hydraulic jack had a increased the capacity after 10,000 cycles. 

The site investigation data at the Hornsby Bend site can be reused for developing a soil profile.  The virgin pile load test results can be added to a load test database for developing predictions of tensile capacity of piles in sand.  The results of the pile load tests after cyclic loading can be used in future studies involving cyclically loaded piles.
description: In the last several years, offshore wind jacket structures have been introduced into the waters of the United States. Previous experience in developing jacket structures for the oil and gas industry in the Gulf of Mexico has allowed transition for use with offshore wind structures. Inherent differences in loading types and soil conditions are significant, with wind structures experiencing large cyclic overturning moments. Pile response to these high cyclic loadings, as well as aging effects, are critical to incorporate in the design process. The project was conducted to investigate the effects of these loading conditions.
DOI: 10.17603/ds2-kwmz-ke11
title: Raw data collected during the RAPID reconnaissance mission to Mayfield in March 2022
title: in RAPID: Mayfield, KY Post-Tornado Building Reconnaissance

description: Damage reconnaissance of historical buildings affected by tornado loading
description: Contained within this folder is an exhaustive collection of raw data that was obtained during the on-site data collection process. The data encompasses a range of sources, including aerial imagery, photographs, and LiDAR scans. Each of these sources provides unique information that, when combined, creates a highly detailed representation of the site in question. The aerial imagery captures an overview of the site from a bird's-eye perspective, while the photographs provide a more granular view of specific areas. The LiDAR scans, on the other hand, use laser technology to capture highly accurate data on the contours and elevations of the site. Together, these three sources of data provide a comprehensive understanding of the site that can be utilized for a variety of applications.
DOI: 10.17603/ds2-52dm-s780
title: Cyclic Direct Simple Shear tests - Effect of overburden stress
title: in LEAP-2022 - Effects of overburden stress, relative density, and static shear stress on cyclic strength of Ottawa F65 sand

description: The stress-strain-strength behavior of Ottawa F-65 sand is investigated through a series of stress-controlled Cyclic Direct Simple Shear (CDSS) tests conducted as part of the Liquefaction Experiments and Analysis Project (LEAP-2022). The tests were performed with two different overburden stresses on specimens prepared with different relative densities and subjected to different static (initial) shear stresses prior to cyclic shearing. The report included here presents the setup and experimental procedure, as well as the liquefaction strength curves and the results obtained from each test. The dataset presented in this report builds on the soil characterization tests, cyclic triaxial tests, and direct simple shear tests performed for the LEAP-2017, LEAP-2018/9, and LEAP-2020 (ElGhoraiby, Park and Manzari, 2017, 2018a, b, 2020). The current dataset is archived on DesignSafe-CI and a MATLAB script is also provided for post-processing and visualization of the experimental data.
description: The stress-strain behavior and liquefaction strength of Ottawa F65 sand was investigated through an extensive series of cyclic direct simple shear (CDSS) tests. The study quantified the effects of overburden stress on the cyclic strength of Ottawa F65 sand. The database of CDSS tests was used to develop an Artificial Neural Networks model to predict Ottawa F65 cyclic strength.
DOI: 10.17603/ds2-8ncj-ew49
title: Market Basket Assessment for all Waves
title: in Hurricane Florence Food Environment Study

description: This study explores issues related to food environment disruption following a hurricane event from a systems perspective using a quick response disaster research methodology. Through interviews and observations during the week following Hurricane Florence (2018) and follow-up data collected at 6-weeks, 4-months, and 1-year post-event, this study describes the impact of the hurricane on farmers, retail and emergency food systems, and households. Study findings shed light on how to bolster food system resilience and reduce health disparities to create more weather ready communities.
description: Observation of food stores and evaluation of the price, quality, and availability of a standard basket of food items using the validated NEMS-S (Glanz, et al. 2007) across 10 stores over 4 waves of data collection - the week of, 6 weeks post-event, 4 months post-event, 1-year post-event (note 1-year post-event coincides with Hurricane Dorian preparations).

Reference:
Glanz, K., Sallis, J. F., Saelens, B. E., & Frank, L. D. (2007). Nutrition Environment Measures Survey in stores (NEMS-S): development and evaluation. American journal of preventive medicine, 32(4), 282-289.
DOI: 10.17603/ds2-94sa-7r36
title: Shake-table Tests of A Half-scale Seven-story RC Structure with Ductility Irregularity (Specimen-2)
title: in Shake-table Tests of Seven-story Reinforced Concrete Structures with Torsional Irregularities

description: This experimental project was made possible by an international collaboration between the National Centre for Research on Earthquake Engineering (NCREE), Taiwan and QuakeCoRE, New Zealand Centre for Earthquake Resilience. Both Taiwan and New Zealand belong to high seismic hazard regions and experiences from past earthquakes brought up needs for assessing displacement demands on existing reinforced concrete buildings subjected to torsion. The series of shake-table tests were therefore conducted in NCREE Tainan Laboratory using the high-performance earthquake simulator. The primary objective of the experiments was to investigate displacement demand due to inelastic torsional response. Two specimens were designed to test different source of torsional irregularities and the test data were made available for the public on DesignSafe.
description: A half-scale seven-story specimen (Specimen-2) was tested under uni-directional seismic excitation on the shake table in NCREE Tainan Laboratory. The test series aimed to investigate torsional response caused by unsymmetric strength deterioration (i.e. Ductility Irregularity). First-story columns at one edge (West) of the structure were designed with ductile detailing whereas the other first-story columns were designed with non-ductile detailing. The designed irregularity resulted in torsional response with high drift demand in the non-ductile edge. The test data will be valuable for validation of numerical analysis as well as considering torsional demand due to ductility irregularity in seismic performance evaluation of existing buildings.
DOI: 10.17603/ds2-e0ts-c070
title: Ground Motion Parameters for KiK-net Records: An Updated Database

description: The data presented in herein consists of processed ground motion data from the KiKnet network in
Japan along with a flatfile of site and event metadata. The raw ground motion data was downloaded
from the KiKnet website in Japan. The metadata was obtained from the information in the KiKnet site as
well as moment tensor solutions from the Fnet website in Japan and, when available, finite-fault source
models from the literature. The processing of the ground motion data was performed with an
automated algorithm that is described in detail in the accompanying paper. The ground motion data
includes spectral accelerations for various oscillator periods, smoothed and down-sampled Fourier
amplitude for various frequencies, as well as Arias Intensity and various duration measures. Intensity
measures are computed both for surface and borehole records. Various distance measures are
computed for each ground motion, including estimates of rupture distance for sufficiently large events,
including those with finite-fault source models. The database includes site parameters for the recording
sites (e.g., V S30 ) based on shear wave velocity profiles provided by KiKnet. The database includes a flatfile
in *.csv format. To access subsets of the data through user-defined queries we have built a jupyter
interface (interface.ipynb). Note that the project folder is read-only, hence the interface file must be
copied to the user directory. Precise instructions for doing so are included in the readme file.
DOI: 10.17603/ds2-ev7s-8591
title: Understanding the Utility of the iPad Pro LiDAR Sensor

description: The project is about assessing the effectiveness of the iPad Pro LiDAR scanner by comparing it to the RTC 360 device. The data can be reused by using the same data while contrasting between data collection methods. The project analyses the performance of the device that is being talked about in the article (iPad Pro) and it distinguishes itself with other data collection methods. The results supports this claim and that makes the project unique. This article is for individuals researching about data collection methods.
DOI: 10.17603/ds2-evrj-6992
title: Shear wave velocity datafiles for sites in central and eastern North America as compiled by the Geotechnical Working Group as part of the NGA-East project

description: This dataset consists of 725 shear-wave velocity (Vs) and 212 compression-wave velocity (Vp) profiles measured at sites in central and eastern North America, as well as Vs30 values for 2,358 sites derived from in situ measurements. All data were compiled from published reports and Nuclear Power Plant (NPP) license applications (citations for all references compiled are provided in a separate PDF). These data were used by the Geotechnical Working Group as part of the NGA-East project (e.g., Kottke et al. 2012; Hashash et al. 2014). Velocity profiles are stored in a JavaScript Object Notation (JSON) format using a uniform structure for individual sites within the “Velocity Profile Files” sub-directory. Vs30 data are also stored in a JSON format as separate files for each reference considered within the “VS30 from Measurements Files” sub-directory. The data have been screened for quality and uploaded to the Shear-Wave Velocity Profile Database (Kwak et al. 2021; VSPDB).
DOI: 10.17603/ds2-jj0p-6y17
title: Phoenix Cool Pavement Resident Survey
title: in City of Phoenix Cool Pavement Evaluation (COPE)

description: Many cities around the world, including the City of Phoenix, are experiencing elevated temperatures due to the built environment that are exacerbated by climate change. Paved surfaces with impervious materials, such as asphalt concrete (roads, sidewalks, parking lots, etc.), absorb and store heat during the day and release this heat overnight creating higher temperatures than surrounding rural areas. This phenomenon is known as the Urban Heat Island (UHI) effect. 

With paved surfaces comprising about 40% of the urban land area in Phoenix, they are often considered one of the primary causes of the UHI. One of many strategies to mitigate increased temperatures and reduce heat storage in pavements is the use of coatings that reflect (rather than absorb) solar radiation to reduce the heat absorbed by the pavement, thus reducing surface temperatures. Lowering surface temperatures and the heat retained in the built urban environment may help reduce elevated day and nighttime air temperatures. Such reflective coatings are easy to apply to existing paved surfaces and, in most cases, use light-colored pigments and materials to increase reflectivity compared to traditional asphalt concrete roads. 

The City of Phoenix recently initiated the Cool Pavement Pilot Program in which the City applied the product CoolSeal by GuardTop® to 36 miles of residential neighborhood roads and one public parking lot. This effort resulted in the most miles of road surface coverage with a reflective coating of any municipality globally. It is designed to achieve lower pavement surface temperatures through its lighter color and reflectivity. One neighborhood in each of the eight council districts of Phoenix was chosen for application of CoolSeal in consultation and with the support of the City Council Offices.

Data from the Phoenix Cool Pavement Pilot Program are shared through the DesignSafe Data Depot to be accessed by researchers, municipal officials, and other stakeholders seeking to understand the impacts of this particular heat mitigation strategy and/or who may be considering a similar implementation in their jurisdiction.
description: This mission includes responses to a survey administered as part of the City of Phoenix Cool Pavement Evaluation project in 2020-2021 to understand residents' perceptions of and experiences with a reflective pavement coating that was applied to their neighborhood streets. Residents included in the sample are only those whose neighborhoods received the cool pavement coating in fall 2020 as part of the city's first-stage pilot program.
DOI: 10.17603/ds2-py7p-ec71
title: R5P Response Model
title: in Probabilistic seismic response and capacity models of piles for statewide bridges in California

description: The R5P pile response models are the output datafile associated with the following publication. Xie, Y., Zheng, Q., Roblee, C., Yang, CSW., Padgett, J.,and R. DesRoches. (2020) “Probabilistic seismic response and capacity models of piles for statewide bridges in California.” ASCE J. Struct.Eng. (forthcoming). This project develops probabilistic seismic response and capacity models for the broad collection of piles that are designed for statewide bridges in California. Force-displacement responses of pile-soil systems under a large number of pushover analyses are regressed as response models consisting of five parameters (termed as response five parameter (R5P) models), which can capture all essential behaviors of laterally-loaded piles. R5P models for all distinct pile types are further summarized in an Excel workbook to facilitate their practical implementations.
description: Seismic response models for statewide pile foundations in California bridges.