Janelle T.’s Post

Have you already checked out our Analysis Catalog? 💡 Find answers to all of your questions: - Which automated geospatial analyses are available on Maya? - Which datasets are integrated into Maya? - What's the difference between Biomass estimates from GEDI and ORNL? - Which analyses utilize PALSAR or LiDAR satellite imagery? ... ➡️ Check out the Analysis Catalog here: https://lnkd.in/gU_72GGK #AskMaya #YourGeospatialAnalyst #GIS #GenAI #GeospatialProcessAutomation #NaturebasedSolutions #NaturalCapital

It took a long time, but my third scientific paper (and last Ph.D. chapter) is finally published! Some key points from the paper: 1. Very large snow grains and densities are needed to explain centimeter-level differences between ICESat-2 and airborne lidar. 2. Biases from snow grain size and other factors may be influenced by different height measurement methods between ICESat-2 and airborne lidar. 3. Snow grain size retrievals strongly differ between airborne lidar and AVIRIS-NG over regions with coarse-grained snow. Link to full article: https://lnkd.in/eu9FVBSx

LiDAR History in 1 minute - The first LiDAR prototype was built in 1961 by Hughes Aircraft Company, which had built the first laser a year earlier. - LiDAR systems were developed in the 1960s and found their first applications in terrain mapping of aeronautics and aerospace. - In 1971, NASA used lidar for surface mapping purposes of the moon under Apollo 15. - In the 1970s, remote sensing based on lasers concentrated on airborne sensor deployment where topographic mapping of forests, ice sheets, oceans and the atmosphere was conducted. - In the 1980s, the dissemination of lidars was limited by a lack of commercial GPS systems required to foster aerial sensor deployment. - In the mid-1990s, first commercial lidars with 2,000 to 25,000 pulses per second were manufactured and delivered for topographic mapping purposes. - In the United Kingdom, the Environment Agency Geomatics Group has used lidar for over a decade for the production of cost-effective terrain maps suitable for assessing flood risk. - In recent years, lidar has become popular for calculating precise geo data as well as for deployment in meteorology, archaeology, ecology, forestry, geology, law enforcement, military, mining, physics, astronomy, robotics, spaceflight, surveying, transport, wind farm optimization, solar photovoltaic deployment optimization and video games. #lidar #lidartechnology #engineering #civilengineering #history #shorthistory

So we're technically a couple days late on #WorldLidarDay, but every day is lidar day at #KGS. #Lidar (light detection and ranging) is a type of laser scanning that allows geoscientists to make incredibly detailed 3D computer representations of Earth's surface, even in heavily forested areas. KGS researchers use statewide lidar data to identify landslides and sinkholes, develop geohazard susceptibility maps, improve flood modeling, advance resilience planning, and map surface expressions of faults in the New Madrid seismic zone. https://lnkd.in/e8gH-G9g? #geology #geoscience

A bit more information on our airborne geotech corridor survey. High-res LiDAR, imagery, DTM, ortho, to identify geomorphology for geological/geophysical interpretation. We can map surface and derive subsurface intel for linear assets, trenches, pipelines, power corridors, large area engineering sites (windfarms), carbon/biomass measurement, critical mineral exploration... #BrumbyLiDAR, #ALS, #geotech, #LiDAR

LIDAR: Finnish lidar network for atmospheric aerosols assessed for first time For the first time, the Finnish Meteorological Institute (FMI) has assessed the long-term capability of the HALO Doppler #lidar network across Finland. In the study, data from a network of four HALO Doppler lidars in Utö, Hyytiälä, Vehmasmäki and Sodankylä were analyzed. These instruments can continuously observe and provide information about the #atmosphere up to 9km, or below the cloud base. Read more here: https://lnkd.in/e-c478gm #Meteorology #Climate #ClimateChange #Science #Weather #Data #Forecasts #Environment #Technology #MetTechExpo #MetTechExpoNA

Great work by Thorben H. Mense and his colleagues from Leibniz Institute of Atmospheric Physics (IAP) with some assistant from Fraunhofer ILT: an publication was just published in the journal Atmospheric Measurement Techniques #AMT from the European Geosciences Union (EGU). In the work the first measurements of simultaneous horizontal and vertical winds are described, using a novel lidar system, #VAHCOLI, with a multi-field-of-view (MFOV) upgrade. Comparison of the real-time measurements with data from the #AEOLUS satellite from European Space Agency - ESA and from Copernicus ECMWF are discussed. The #lidar technology with the MFOV allows for high resolution measurements in an lidar array and builds the basis for the development in the EULIAA project. The #openaccess version of the publication can be found here: https://lnkd.in/eBMXKmiC

This week, I started studying the Global Ecosystem Dynamics Investigation (GEDI) mission, specifically focusing on L4B version 2.1 products. The mission's objective is to characterize the structure and dynamics of ecosystems, making it one of the most innovative missions in understanding and quantifying the carbon cycle and biodiversity. Regarding forest attributes, the L2A vector version provides 100 metrics related to tree height, canopy, Vertical Vegetation Density, and terrain topography. These data are obtained through laser pulses to measure the distance between the satellite and the Earth's surface, integrated into the ICESat-2 (Ice, Cloud, and land Elevation Satellite-2) satellite. GEDI is a lidar (Light Detection and Ranging) instrument operating in the near-infrared spectrum. In this initial exercise, I studied how to obtain data from the latest version (2019-2021) with corrections for South America. Link  this application: https://lnkd.in/gSiR9FYn #gedi #biomass #carbon #carbonfootprint #lidar #laserscanning #earthengine #research

🌋 Yellowstone's unseen dangers unveiled by laser light showcase how photonics continually push the bounds of scientific measurements. Read more about how the threat of earthquakes are now more understood than ever with the help of LiDAR at:

The US Geological Survey (USGS) and its partners have officially launched World Lidar Day, which will take place on February 12th during the Geo Week Conference. 🚀 Lidar technology plays a crucial role in mapping and understanding our planet's surface, and this initiative aims to raise awareness about its importance and potential applications. 🗺️💡 To learn more about this event and how lidar is revolutionizing geospatial data collection, check out the article below! 👇 https://lnkd.in/gDzGpc-z #WorldLidarDay #GeoWeekConference #LidarTechnology #GeospatialData #USGS #GeospatialTechnology #GIS