cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17603/ds2-8710-ad45
title: StEER 2022 Mw 6.1 Duzce, Turkey Earthquake Preliminary Virtual Reconnaissance Report (PVRR)
title: in StEER - November 23 2022, Duzce, Turkey, Mw 6.1 Earthquake

description: The first product of StEER’s Level 1 response to the Mw 6.1 Duzce, Turkey Earthquake is this Preliminary Virtual Reconnaissance Report (PVRR), which is intended to: (1)  provide an overview of the 2021 Turkey Earthquake, particularly relating to the impact of the earthquake on regions, (2) assemble information on the seismic hazard and intensity of ground motions, (3) provide an overview of Turkish regulatory environment and construction practices, (4) summarize the preliminary reports of damage to buildings and other infrastructure, including disruption to the community in terms of fatalities and economic losses, (5) establish current conditions in the affected area with respect to access, and (6) provide recommendations to inform the continued study of this event by the natural hazards engineering reconnaissance community. The PVRR includes both the official report as well as a supplementary media repository containing additional imagery gathered by the VAST. As the product of entirely virtual reconnaissance, the PVRR is not based upon detailed field investigations by StEER.
description: An earthquake occurred in Duzce, Turkey on Nov. 23, 2022 with magnitude of 6.1 and a depth of 10.0 km. The region has been struck by several destructive earthquakes in the past decades. The vast majority of the buildings in the region affected by the earthquake, including government and school buildings, have been either retrofitted or rebuilt after the Aug.17, 1999 Mw 7.6 Kocaeli and Nov. 12, 1999 Mw 7.2 Duzce earthquakes. No structural damage and nonstructural damage were reported in these buildings during this event. This low level of damage shows the effectiveness of retrofit measures and recent strict seismic design requirements enforced for the buildings constructed after 1999. In general, limited collapses and structural damage were observed. However, the economic losses due to nonstructural damage and business interruption were significant. There were no reports of damage to roads and bridges, and power, water, telecommunications, and other infrastructure and lifelines. This project encompasses the products of StEER's response to this event: Preliminary Virtual Reconnaissance Report (PVRR).
DOI: 10.17603/ds2-aetm-8891
title: GEER Puebla-Mexico City Earthquake

description: UNAM-GEER formed a reconnaissance team to investigate and document the geotechnical effects of the Puebla-Mexico City M 7.1 19 September 2017 earthquake in Mexico. Data provided within this project includes specifically LiDAR and UAV point clouds (las and potree files) as well as compiled videos from the teams field survey.
DOI: 10.17603/ds2-b7sj-jr67
title: Transportation Infrastructure Performance under Seismic Hazards with SimCenter Tools
title: in Project 8: Transportation Infrastructure Performance under Seismic Hazards with SimCenter Tools

description: This is Project 8 of the 2024 NHERI Computational Academy, focused on evaluating the seismic performance of highway transportation infrastructure in the San Francisco Bay Area. The project utilized SimCenter tools, including both the frontend graphical user interface and the backend Python codebase, to achieve its goals. The project team, listed in alphabetical order by last name, includes Amma Agyekum, Alireza Ghavidel, Miguel Fuentes Gomez, Abhijit Roy, and Morgan Sanger, with mentorship provided by Jinyan Zhao from the SimCenter.
description: The simulation evaluates the impact on the San Francisco Bay Area transportation service due to closed bridges in earthquakes.
DOI: 10.17603/ds2-e8tr-6567
title: H/V Microtremor Response
title: in Geotechnical Extreme Events Reconnaissance (GEER) Association 2016 Meinong, Taiwan Earthquake Reconnaissance - Microtremor Measurements

description: The Meinong earthquake registered a magnitude of Mw 6.3 (ML6.4) with a focal depth of 16.7 km by Taiwan Central Weather Bureau (CWB) and 23 km by USGS.  The focal mechanism to the main event was characterized as strike-slip with an oblique thrust component.   Seven aftershocks were recorded within the 24-hour window after the main shock with all of the aftershocks occurring west of the mainshock and with much deeper focal depths.
No significant damage was reported in the epicentral region. However, damage was reported about 30 km (25 miles) west of the epicenter in Tainan City where more than 20 multi-story buildings constructed under relatively modern building codes were severely damaged, including seven that suffered a complete collapse. There were some unexpected structural performances, geographical damage patterns, and liquefaction manifestation from the Meinong earthquake compared with prior earthquakes of similar magnitude. 
The Geotechnical Extreme Events Reconnaissance (GEER) team brought two sets of seismometers to Tainan and conducted horizontal-to-vertical (H/V) spectral ratio of microtremor measurements (Nakamura’s technique, referred to as H/V measurements here after) at 10 sites where structure, foundation, or slope damage from the Meinong earthquake was observed.
DOI: 10.17603/ds2-fxwx-n090
title: MATLAB Code: Topology optimization of dissipative metamaterials at finite strains based on nonlinear homogenization

description: This work provides topology optimization framework for designing optimal dissipative (damping) metamaterials under time-dependent loading conditions at finite deformations.
DOI: 10.17603/ds2-gjnk-0q88
title: NSF-Goali: Future Underground Landscape -Learning from Large Excavations in a Complex Urban Environment - Field Monitoring and Testing data

description: The major expansion of the Los Angeles Metro system provided the unique opportunity to collect and analyze data needed to improve excavation performance.  Within the NSF funded GOALI Award “Future Underground Landscape - Learning from Large Excavations in a Complex Urban Environment,” several excavation case histories were collected and archived for future use by the proposal investigators. Data are being curated as they become available and shareable, allowing the user to analyze and model unique excavation designs in various geological settings. This dataset accompanies a first suite of publications by the research team, and provide excavation data (settlements, deformations) and in-situ and laboratory test data from soil samples at the project location
DOI: 10.17603/ds2-hjsk-w310
title: Natural Hazards Research Summit 2024: NHERI Centrifuges - A Hypergravity Laboratory Platform to Push the Frontiers of Engineering and Science

description: The Center for Geotechnical Modeling (CGM) at UC Davis provides users access to world-class geotechnical modeling facilities, including 9-m and 1-m radius centrifuges with shaking tables, to enable major advances in the ability to predict and improve the performance of soil and soil-structure systems affected by earthquake, wave, wind and storm surge loadings.
DOI: 10.17603/ds2-k3mv-zv15
title: ISROC Dataset for: Boulder emplacement and remobilisation by cyclone and submarine landslide tsunami waves near Suva City, Fiji
title: in Inundation Signatures on Rocky Coastlines (ISROC) Global Coastal Boulder Deposits Datasets Version 1

description: This document contains standardized data as an Excel and NC file as well as explanatory notes and the project's raw data for "Boulder emplacement and remobilisation by cyclone and submarine landslide tsunami waves near Suva City, Fiji." The project considers 117 coastal boulder deposits in Suva City, Fiji. A submarine landslide deposits most of the boulders, but cyclones have transported them over time. The effectiveness of dating methods is a primary part of the study.
description: This project is a collection of datasets on studies about coastal boulder deposits worldwide. Each document is a unique dataset that contains data from a published study. The document's name reflects the name of the associated paper, and all authors of papers are given credit in the respective document. Each dataset's data is standardized into an ISROC-formatted Excel and NC File. Also, every dataset has explanatory notes, which contain a data dictionary explaining data parameters and appropriate units, Some datasets have the raw data given to ISROC by the paper's authors. By creating a database in the public domain, ISROC hopes to promote academic collaboration in the field. ISROC, an NSF-funded research network, funds this project.
DOI: 10.17603/ds2-psh3-6z28
title: ISROC Dataset for: Observations and Modeling of Coastal Boulder Transport and Loading During Super Typhoon Haiyan
title: in Inundation Signatures on Rocky Coastlines (ISROC) Global Coastal Boulder Deposits Datasets Version 1

description: This document contains standardized data as an Excel and NC file as well as explanatory notes and the project's raw data for "Observations and Modeling of Coastal Boulder Transport and Loading During Super Typhoon Haiyan." The project includes 118 coastal boulder deposits in the Philippines from Typhoon Haiyan's storm waves. The hydrodynamic values of the measured boulders were compared with modeled boulders to determine the validity of the models.
description: This project is a collection of datasets on studies about coastal boulder deposits worldwide. Each document is a unique dataset that contains data from a published study. The document's name reflects the name of the associated paper, and all authors of papers are given credit in the respective document. Each dataset's data is standardized into an ISROC-formatted Excel and NC File. Also, every dataset has explanatory notes, which contain a data dictionary explaining data parameters and appropriate units, Some datasets have the raw data given to ISROC by the paper's authors. By creating a database in the public domain, ISROC hopes to promote academic collaboration in the field. ISROC, an NSF-funded research network, funds this project.
DOI: 10.17603/ds23t00
title: Triaxial Tests On Sand For Yield Surface Mapping
title: in Triaxial Tests on Sand for Yield Surface Mapping

description: This project involves a total of 8 triaxial experimental events on loose sand specimens. The objective of the tests is to capture the yield surface and plastic potential surfaces that can be used for developing new and more accurate constitutive models.
description: Triaxial compression tests on uniformly graded sand to map yield and plastic potential surfaces
DOI: 10.17603/ds2-1kzn-2b40
title: Research Experiences for Undergraduates (REU), NSF NHERI 2024: Modernizing Wind-Driven Rain Fenestration Testing: Redesigning a High Airflow  Pressure Loading Actuator

description: This project focused on redesigning a test apparatus for wind-driven rain water ingress through building fenestrations. The purpose was to create a starting point for a new apparatus to be constructed based on increasing the size and potential specimen variety of the existing High Airflow Pressure Loading Actuator at the University of Florida’s Powell Family Structures and Materials Laboratory. The results compiled in this project may be used in future pressure-loading actuator system design and construction, especially focusing on the airflow and water flow systems within a water ingress testing apparatus. This project is aimed at an audience of researchers interested in pressure loading actuator design, but is written with the intention to be understandable to those with varied or no backgrounds in STEM and research.
DOI: 10.17603/ds2-b5s1-6686
title: A Rapid Seismic Vulnerability Assessment Tool for Bridges in Indiana - INSAT

description: The Indiana Seismic Assessment Tool (INSAT) is a rapid assessment seismic vulnerability assessment tool for bridges. INSAT is implemented in a macro-based Excel tool, and is designed to make direct use of NBI and BIAS data and data-structures.The parameters used in the analysis are tuned to bridges in Indiana, but the methodology could similarly be applied to bridges in other regions with low-to-moderate seismicity, such as the central and eastern US (see the JTRP report for details). As part of Joint Transportation Research Program (JTRP) project SPR-4222, supported by the Indiana Department of Transportation, INSAT was generated to perform the simplified assessment on the state-owned bridge inventory for a 1000-year ground acceleration (7% probability of exceedance in 75 years) based on the conditions at each specific bridge site. The simplified vulnerability assessment procedure and the vulnerability classification thresholds used in INSAT are determined based on a detailed analysis of representative set of bridges selected from across the Indiana inventory. INSAT is intended to be used to identify the most vulnerable bridges in a large bridge network, thus facilitating a rapid state bridge inventory network assessment to prioritize and inform actions such as maintenance and rehabilitation.

Please watch the instructional video to see how INSAT functions, and then download the associated files to try it yourself. It does not run in the Data Depot environment.
DOI: 10.17603/ds2-bj9h-zm65
title: Regionalization of Global Subduction Ground Motion Model for Application in Central America and Mexico

description: For engineering design and seismic risk assessments, earthquake ground motions are characterized using intensity measures such as peak acceleration or spectral accelerations. Ground motion models (GMMs) estimate statistical distribution of intensity measures given information about the source, source-site path (distance), and site condition. This research extends data resources originally developed for Central America and Mexico for the NGA-Subduction (NGA-Sub) project database and uses the data to provide regional customization of global GMMs for application in Mexico.
This research is the result of U.S.-Mexico collaboration that led to significant enhancements of the data resources for that region (relative to NGA-Sub). The database for Mexico is extended by considering small magnitude (M < 6) events and three large events (M 7.2-8.3) in 2017 and 2018. The latter are particularly important, because they are well recorded over a broad distance range and apply for hazard-critical conditions. These changes increase the size of the database from 593 recordings from 66 events (NGA-Sub) to 1882 recordings from 121 events.
The expanded data are examined relative to global NGA-Sub models, which reveals a number of interesting features including faster anelastic attenuation in backarc than forearc regions and generally similar levels of site response as in the global GMM. A novel model for site response in Mexico City is proposed that is properly centered with respect to GMMs and that accounts for the unique Lake Texcoco geology. The model predicts significantly stronger site response than prior models that utilized a reference site approach using a medium-stiff soil site as the reference site. The site amplification model is conditioned on VS30 and is nonlinear (dependent on input motion amplitude). The provided models significantly improve upon current ground motion modeling approaches for Mexico because a common framework is used within and outside of the Valley of Mexico (unlike current practice) and the model combines the applicable features of global models while providing appropriate regional and subregional customization.
DOI: 10.17603/ds2-f1nd-9s05
title: Workshop on Artificial Intelligence in Natural Hazards Engineering

description: The recent explosion of Artificial Intelligence (AI), Machine Learning (ML), and Deep Learning (DL) technologies has shown the potential for dramatic impact in many domains.  Nonetheless, many disciplines are currently struggling to identify the appropriate ways AI can and should impact work done in their disciplines.

To address these issues within the domain of natural hazards engineering (NHE), the DesignSafe cyberinfrastructure of the Natural Hazards Engineering Research Infrastructure (NHERI), in collaboration of the NHERI SimCenter, organized this Workshop on Artificial Intelligence in Natural Hazards Engineering.  The purpose of the workshop was to explore a research agenda that determines where AI (including ML and DL) can and is being productively employed in natural hazards engineering research, what techniques hold key promise, and how these techniques may be adapted to the hazards engineering domain moving forward.  This project includes the workshop report, as well as summaries of break out discussions and workshop presentations.
DOI: 10.17603/ds2-fc1v-5h68
title: Creating Accessible Materials for People with Visual or Auditory Disabilities—CONVERGE Extreme Events Research Check Sheets Series

description: People with visual or auditory disabilities are often hindered from accessing important disaster information by avoidable barriers. This check sheet is meant to help researchers create a plan to ensure their materials, meetings, and other activities are inclusive and accessible for individuals with these access needs. About the CONVERGE Extreme Events Research Check Sheets Series: The National Science Foundation-supported CONVERGE facility at the Natural Hazards Center at the University of Colorado Boulder has developed a series of short, graphical check sheets that are meant to be used as researchers design their studies, prepare to enter the field, conduct field research, and exit the field. The series offers best practices for extreme events research and includes check sheets that are free to the research community. More information is available at: https://converge.colorado.edu/resources/check-sheets.
DOI: 10.17603/ds2-j6g9-3y96
title: Post Earthquake Vibration Measurements of Buildings in Mexico City
title: in RAPID/Collaborative Research: The Effects of the 2017 Central Mexico Earthquake on Reinforced Concrete Buildings

description: This project contains the ambient vibration data of eleven buildings located in Mexico City obtained during a reconnaissance trip 5 months after the 2017 earthquake. The reconnaissance team included researchers from the University at Buffalo, University of Nebraska-Lincoln, UC San Diego, Cal Poly, San Luis Obispo, and was led by Purdue University. The instrumented structures include four schools, one high-rise building, as well as residential buildings. For four of the residential buildings, lidar scans were also obtained by the reconnaissance team. 

The structural system in all cases involved a combination of RC walls and columns, and masonry infill panels. The buildings had varying levels of damage due to the 2017 earthquake. The recorded acceleration data can be used to obtain the modal frequencies and mode shapes of the damaged building, while the lidar data can be used to quantify residual deformations and damage features.
description: This experiment contains the ambient vibration data of a eleven buildings with various degrees of damage located in Mexico City. For four of the buildings, lidar scans are also provided. The data can be used to estimate the modal frequencies and modal shapes of the buildings, as well as possible permanent deformations and damage features.
DOI: 10.17603/ds2-vpmv-5b34
title: GEER Field Reconnaissance
title: in Ridgecrest, CA earthquake sequence, July 4 and 5, 2019

description: The initial field reconnaissance team arrived in Ridgecrest on July 5th at about 3 pm, and performed some field measurements of the surface rupture for the M6.4 July 4th event. We then experienced the M7.1 event on the evening of July 5th, and returned to the field on July 6th to perform mapping of the surface rupture for the M7.1 event. We also visited Argus and Trona, where liquefaction and lateral spreading was observed. We continued our reconnaissance on July 7th, mapping both surface ruptures and re-visiting Argus and Trona. Information gathered during this mission include geotagged digital photos, field measurements of surface fault rupture and liquefaction features, and security camera video from the Ridgecrest Super 8 during the M7.1 event.
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-zx6d-2504
title: Limit State Material Manual

description: In this work, the limit state material implemented in OpenSees is described using some examples.
DOI: 10.17603/ds2-3ft2-0441
title: EAGER: SSDIM: Data Generation for the Coupled System Composed of the Beef Cattle Production Infrastructure and the Transportation Services Infrastructure in Southwestern Kansas

description: The overall objective of this project is to generate simulated data through modeling the behaviors of the interdependent beef production system and transportation infrastructure in southwestern Kansas, with due consideration of key social and economic factors.
DOI: 10.17603/ds2-5apm-v542
title: Wind tunnel experiments on realistic low-rise building in urban area
title: in Analysis of wind-induced interference effects on a realistic low-rise building in an urban area

description: This project has investigated the wind-induced pressure loads on a realistic low-rise building within an urban area (Y2E2 building in Stanford Engineering Quad). Experiments were conducted at two wind tunnels; the NHERI Wall of Wind (WOW) wind tunnel at the Florida International University facility, and the NHERI terraformer Boundary Layer Wind Tunnel at the University of Florida (UF). First, the building is considered as isolated with suburban terrain in both WT facilities. Consequently, the surrounding buildings were included onto the turntable, and pressure measurements were conducted on the target building.  In all experiments, the measurements were performed across a total of 28 wind directions, encompassing the complete wind rose.
description: This project has investigated the pressure loads on a realistic low-rise building configuration within an urban area in order to study wind-induced pressure loads due to the surrounding buildings. The test case is the Y2E2 building in Stanford Engineering Quad. Experiments were performed at two wind tunnels; the NHERI Wall of Wind (WOW) wind tunnel at the Florida International University facility, and the NHERI terraformer Boundary Layer Wind Tunnel at the University of Florida (UF). The datasets have been used to validate large-eddy simulations.