A5044462591- Cryospheric studies and observations
- Climate change and permafrost
- Environmental Monitoring and Data Management
- Landslides and related hazards
- Advanced Computational Techniques and Applications
- Geology and Paleoclimatology Research
- Soil erosion and sediment transport
- Methane Hydrates and Related Phenomena
- Scientific Computing and Data Management
- Geological and Geophysical Studies
- Hydrocarbon exploration and reservoir analysis
- Seismology and Earthquake Studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Seismic Waves and Analysis
- Distributed and Parallel Computing Systems
- 3D Surveying and Cultural Heritage
- Remote Sensing and LiDAR Applications
- Oceanographic and Atmospheric Processes
- Earthquake Detection and Analysis
- Marine animal studies overview
- Computational Physics and Python Applications
- Seismic Imaging and Inversion Techniques
- Image Processing and 3D Reconstruction
- Infrared Target Detection Methodologies
- Disaster Management and Resilience
University of Washington
2020-2025
Seattle University
2016-2019
Rutgers, The State University of New Jersey
2016-2017
Precisely measuring the Earth's changing surface on decadal to centennial time scales is critical for many science and engineering applications, yet long-term records of quantitative landscape change are often temporally geographically sparse. Archives scanned historical aerial photographs provide an opportunity augment these with accurate elevation measurements that capture state Earth surface. Structure from Motion (SfM) photogrammetry workflows produce high-quality digital models (DEMs)...
icepyx is both a software library and community composed of ICESat-2 (NASA satellite) data users, developers, maintainers, the scientific community.We are working together to develop shared resources -including existing resources, new code, tutorials, use-cases/examples -that simplify process querying, obtaining, analyzing, manipulating datasets enable discovery.
Abstract. Observations of glacier mass changes are key to understanding the response glaciers climate change and related impacts, such as regional runoff, ecosystem changes, global sea level rise. Spaceborne optical radar sensors make it possible quantify elevation thus multi-annual on a scale. However, estimates from growing number studies show wide range results with differences often beyond uncertainty bounds. Here, we present outcome community-based inter-comparison experiment using...
Abstract. Many glaciers dam lakes at their margins that can drain suddenly. Due to the downwasting of these glacier dams, magnitude lake outburst floods may change. Judging from repeat satellite observations, most ice-dammed with repeated outbursts have decreased in area, volume, and flood size. Yet, we find some oppose this trend by releasing progressively larger volumes over time, elevating downstream hazards. One exceptions is Desolation Lake, southeastern Alaska, having drained least 48...
ABSTRACT Flow pathways on unpaved forest roads are critical determinants of surface runoff and sediment transport. These flow can be largely altered through road deformation caused by heavy traffic, with one the most common types being ruts. Historically, rut development has been studied using cross‐sectional analyses. More recently, remote sensing techniques, such as structure‐from‐motion (SfM) or terrestrial LiDAR scanning (TLS), have demonstrated their utility in mapping ruts roads....
Understanding land surface change in and sediment export out of proglacial landscapes is critical for understanding geohazard flood risks over engineering timescales characterizing landscape evolution geomorphic timescales. We used automated Structure from Motion software to process historical aerial photographs and, with modern lidar data, generated a high-resolution DEM time series coverage 10 glacierized watersheds on Mount Baker, Washington, USA the period between 1947 2015. measured...
The most scientifically diverse and technologically advanced component of the National Science Foundations' $386M investment in Ocean Observatories Initiative (OOI), involves 900 kilometers high power bandwidth electro-optical cable extending from Pacific City, OR, across active portions Juan de Fuca tectonic plate up into overlying ocean. Completed on time under budget October, 2014, this mesoscale fiber-optic sensor array enables real-time, high-bandwidth, 2-way communication with seafloor...
The Ocean Observatories Initiative's (OOI) Cabled Array (CA) is delivering high-definition video data since August 2015 via fiber optic cable from a statically positioned SubC 1Cam HD (CAMHD) camera, deployed at the Mushroom hydrothermal vent in Axial Seamount Hydrothermal Expeditions (ASHES) Field off coast of Oregon (lat 45° 56.0186'N, long 130° 00.8185'W, depth 1,542 m). Over 20 TB have been archived and are publically available OOI raw repository. CAMHD runs 14-minute pan/tilt/zoom...
The Ocean Observatories Initiative (OOI) consists of seven research sites with over 800 instruments collecting ocean, seafloor, and meteorological data in the world's oceans, extending from Irminger Sea to Southern Ocean. scale which are produced their platforms presents key challenges, including how (1) build information management infrastructure that associates measurements multiple for concurrent observations, (2) develop delivery mechanisms meet a variety needs, (3) ensure timely release...
Abstract. Many glaciers dam lakes at their margins that can drain suddenly. Due to downwasting of these glacier dams, the magnitude lake outburst floods may change. Judging from repeat satellite observations, most ice-dammed with repeated outbursts have decreased in area, volume, and flood size. Yet, we find some oppose this trend by releasing progressively larger volumes over time, elevating downstream hazards. One exceptions is Desolation Lake, southeastern Alaska, having drained least 48...
Abstract Large-scale processing and dissemination of distributed acoustic sensing (DAS) data are among the greatest computational challenges opportunities seismological research today. Current formats computing infrastructure not well-adapted or user-friendly for large-scale processing. We propose an innovative, cloud-native solution DAS seismology using MinIO open-source object storage framework. develop schema cloud-optimized formats—Zarr TileDB, which we deploy on a local service...
Abstract. Observations of glacier mass changes are key to understanding the response glaciers climate change and related impacts, such as regional runoff, ecosystem changes, global sea-level rise. Spaceborne optical radar sensors make it possible quantify elevation thus multi-annual on a scale. However, estimates from growing number studies show wide range results with differences often beyond uncertainty bounds. Here, we present outcome community-based inter-comparison experiment using...
We are developing a fully automated Structure from Motion (SfM) processing pipeline to generate high-resolution digital elevation models (DEMs) archives of historical aerial and satellite imagery acquired between the 1950s 1990s. Scanned images loaded directly online processed using open-source software deployed on cloud-computing infrastructure. Modern DEMs with high resolution accuracy (e.g., airborne lidar, stereo sub-meter imagery) used iteratively improve image geolocation, without...
<p>Mountain glaciers have lost significant mass over the past century in response to a globally warming climate. However, on interannual decadal time scales, many Western North America show periods of both advance and retreat. To better understand these systems their sensitivity climate forcing, we are generating regional records glacier surface elevation change from scanned historical film photographs acquired between 1950s 1990s. Our results will help constrain projections...