Tomas Purket
Sessions auxquelles Tomas Purket assiste
Mardi 29 Octobre, 2024
The new Canadian Hydrospatial Network (CHN) is set to replace the National Hydrographic Network (NHN) for Canada. Designed for improved use in hydrological models, the CHN is analysis ready with full-network traversing ability, and value-added attributes such as stream order. The CHN is also created from higher-resolution source data and better aligned to elevation than the NHN, where possible, and has been streamlined for production and maintenance.Work is on-going to refine methods a...
How exactly does artificial intelligence work and what can you use it for in the geomatics domain? Using real-life examples from our projects, they demonstrate how you can use AI to gain new insights and increase efficiency by automating your data processing workflows.We explore how GeoAI is fusing spatial data science and Geomatics technology to help automate the extraction, classification, and analysis of all types of spatial or non-spatial data. Learn how GeoAI can detect clusters, ...
Maintaining undisturbed habitat is key to the recovery strategy of the Woodland Caribou boreal population. Seismic lines have been identified as a human footprint feature that requires specific attention for habitat restoration in part because linear features are linked to increases in the predation rates of caribou as they provide lines of sight and easy transportation routes for predators. It is estimated that there are hundreds of thousands of kilometers of seismic lines within Alberta (AB...
Large-scale habitat inventories are necessary for understanding how human land-use, natural disturbances (e.g., fire) and climate change are influencing ecological processes, species declines and how restoration can address these changes. Within the boreal forest of Alberta, Canada anthropogenic habitat alteration, also referred to as human footprint or the physical disturbance of a landscape as a result of human activity, covers over 19% of the land area. Much of this human footprint is not ...
For the last five years I have been providing reality capture services to documentary film producers. These series have included NatGeo's Buried Secrets of WWII, NatGeo's Drain the Oceans, Discovery's Expedition Unknown and Expedition Bigfoot. LiDAR, photogrammetry, thermography, magnetometry, and multi spectral imagine all provide context that professional storytellers (TV producers) crave. Join me as I share stories, successes, and failures of these unique service offerings.
The government of Alberta manages the production of riverine flood studies under the provincial Flood Hazard Identification Program, to assist communities in keeping Albertans safe and protecting their properties from floods. Flood maps improve public safety, support emergency management, and help us build safer and more resilient communities. The government of Alberta also manages the production of alluvial fan studies to help Albertans learn about flood risks in the steep terrain of Alberta...
In flood mapping and dam breach analysis, engineers and planners define inundation areas through flow modeling. A crucial input for this analysis is a comprehensive topographic surface of the area of interest and any upstream zones. These areas can span hundreds of kilometers and cover thousands of square kilometers.Previous studies have indicated that low-resolution topography can results in larger inundation areas, greater flow volumes, and faster flood streams. However, a comparison...
Algal blooms, typically consisting of cyanobacteria which can produce harmful toxins, are a recurring problem on lakes around the world. Although Alberta has long-term sampling programs on selected lakes, monitoring is limited in time and space. Satellite remote sensing offers a way to monitor cyanobacteria blooms across the entire ice-free season and track spatial patterns of bloom development, dynamics, and spread across lakes. The Alberta Biodiversity Monitoring Institute (ABMI), Alb...
Methane is a greenhouse gas that has a global warming potential 80 times greater than carbon dioxide over a 20-year period. Reducing methane emissions from industrial facilities is one of the most effective ways to reduce greenhouse gas emissions. This talk gives an overview of GHGSat’s approach to providing stakeholders actionable data by detecting, geolocating, and quantifying methane emissions using our fleet of space-based and airborne instruments.
The integration of reality capture technologies—such as LiDAR, photogrammetry, and 3D scanning—into infrastructure asset management is revolutionizing how municipalities and organizations manage and maintain, their assets and deliver services. This presentation will explore the transformative impact of reality capture on the accuracy, efficiency, and overall effectiveness of infrastructure management practices. By enabling effective data collection and visualization, reality capture provides ...
In December 2023 a unique gathering of technology and talent gathered on Alcatraz to capture the entire island, inside and out, from the ground and from the air to assist the National Park Service understand the risks seal level rise and climate change present to the island. Join me and, perhaps, other members of the extended team as we share the technology, the experience, and the adventure of this unique experience.
Maxar has doubled the size of its electro-optical constellation in 2024 with the launch of four new WorldView Legion satellites, and two more will be launched soon. The Maxar constellation will be tripling its 30 cm-class resolution imaging capacity and collecting imagery at new times of day. This speech will cover what these new imaging capabilities mean for monitoring opportunities that will enable energy companies to optimize operations and stay ahead of risk.
Mercredi 30 Octobre, 2024
Photogrammetry is not just limited to aerial platforms. Modern mobile devices contain high-quality cameras and increasingly have LiDAR and depth sensors built in. When combined with high-accuracy GNSS systems, these mobile devices can quickly collect accurate data for utilities, infrastructure, inspection, as-builts, construction, and more. Utilizing these readily available devices can reduce project delays, capture better documentation of utilities, and lay the foundations for digital infras...
With drones like the DJI Matrice 300 now being positioned using RTK GNSS, combined with Structure from Motion (SfM), high precision mosaics are possible without deploying targets. The ability to mount lidars (DJI L1 and L2) and other optical sensors (RGB, multispectral, thermal) allows for precise surveying and the production of high resolution and high accuracy mosaics with minimal ground control. While battery power still remains an issue and the limiting factor for flight duration (10’s of...
Dillon was retained by the Government of Nunavut to perform a Needs Assessment for the rehabilitation of the Runway 13-31, Taxiway A (Alpha), Taxiway C (Charlie), Apron A, and Apron C of the Rankin Inlet Airport.The project included pavement rehabilitation and geotechnical investigations for Runway 13-31, which is a 6000’ x 150’ asphalt paved runway, along with Phase I ...
Project Overview: Discuss the integration process of the Connectiv LiDAR system with the Velos Rotors V3 UAV, focusing on custom modifications for transportation infrastructure inspections and topographic mapping. Highlight the key features and benefits of the custom UAV solution, such as modularity, precision, and safety.Innovative Payloads: Highlight the use of Phase One P3, Drone Rescue Systems DRS-25 parachute, Riegl MiniVux3, and Sony 61 MP camera.Technological Advancements...
With the increasing focus on damage prevention, public safety concerns, and environmental damage due to underground utility strikes, it has become more critical to accuracy locate, store and be able to visualize subsurface utilities. Several key technical details are discussed when implementing a subsurface mapping system from data collection to the use of machine learning for 3D modelling and visualization. The ability to make safe and effective decisions for i...
Reduced snowpack in the Rockies presents a severe drought risk for Southern Alberta. Mountain snowmelt in the Bow and Oldman basins maintains reservoir levels, crop irrigation, municipal and industrial supply, and ecosystem services. As climate and consumption pressures increase, accurate snow water equivalent (SWE) data is crucial for water supply forecasts, which impact allocations and emergency drought measures. Field snowpack monitoring does not provide accu...
